Introduction
The previous study showed that CEDS increased DNA hybridization potential and influenced the functions
of six bps double-stranded DNA (dsDNA), 24 bps dsDNAs, plasmid DNAs, and miRNAs through in vitro
experiments (1). In the same line, this study demonstrated CEDS targeting DNA motif sequences in genomic
DNA. To increase the efficiency of CEDS, this study employed both strands of DNA motif sequences, which
were designated as "target sequence*-CEDS."
Telomere repeat sequences facilitate the replication of chromosome ends and the generation of a T-loop
with a telomere-binding protein complex, shelterin, to prevent chromosomal degradation. Telomere shortening
and instability can induce aging and various diseases due to telomere dysfunction and chromosomal instability
(2). Furthermore, they can form G-quadruplex structure with external Hoogsteen bonding strength ( 3), which
plays an important role in chromatin protection, DNA replication, transcription, and genomic stability. In this
study, a telomere repeat sequence, dsTTAGGG, was selected for CEDS.
The E-box binding proteins play a pivotal role in regulating transcription activity for genome-wide
transcription of numerous genes. Their numbers and types vary depending on the binding specificity of E- box
(4).
Among the consensus sequences of E-box, dsCANNTG, the canonical E-box sequence dsCACGTG, which
is known to be preferentially bound by cMyc, was selected in this study for CEDS to know the transcriptional
changes of cMyc target genes.
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Cytological observation of KB cells treated with CEDS using a telomere repeat sequence
The KB cells derived from human epithelial cell (ATCC, USA) were cultured on culture dishes (SPL,
Korea) in Dulbecco’s modified Eagle’s medium (WelGene Inc., Korea) supplemented with 10% fetal bovine
serum (WelGene Inc., Korea), 100 units/mL carbenicillin, 100 μg/mL streptomycin, and 250 ng/mL
amphotericin B (WelGene Inc., Korea), in 5% CO 2 incubator at 37.5°C. Approximately 50% confluent KB cells
grown on culture dish surfaces were treated with dodecagonal CEDS using a telomere repeat sequence*-CEDS
(TTAGGG*-CEDS) at 23-25 Gauss for 20 min twice a day. Following three days of experiments, the cells were
fixed with 10% buffered formalin and stained with hematoxylin and eosin (H&E).
TTAGGG*-CEDS exhibited a notable reduction in cell density on the culture dish as observed visually,
and a comparable decline in the number of KB cells as observed microscopically, in comparison to untreated
control and CEDS using a random sequence 2(ACGT)*-CEDS. In the high-magnification, the cells treated with
TTAGGG*-CEDS exhibited notable reduction in cell number, accompanied with frequent pyknotic cells
undergoing apoptosis compared to the cells not treated with TTAGGG*-CEDS and the cells treated with
2(ACGT)*-CEDS (Fig. 1).
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Figure 1. Cytological observation of KB cells. H&E stain. Visual and microscopic view of cells treated with
TTAGGG*-CEDS (D-F), 2(ACGT)*-CEDS (G-I), or no CEDS (A-C). F: Noted severe apoptosis with increased
empty space.
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Cytological observation of KB cells treated with CEDS using a telomere repeat sequence or a canonical E-
box sequence
KB cells were cultured on plastic dishes as described above. Approximately 50% confluent KB cells
grown on culture dish surfaces were treated with dodecagonal CEDS using a target sequence at 20-25 Gauss for
20 min twice a day in the culture incubator. Following three days of experiments,
the cells were fixed with 10%
buffered formalin and stained with toluidine blue, a basic thiazine metachromatic dye with high affinity for
acidic tissue components, likely DNA and RNA. Subsequently, visual and microscopic observations were
performed.
A comparison of CEDS effect between telomere repeat sequence*-CEDS (TTAGGG*-CEDS) and mutant
telomere repeat sequence*-CEDS (TTTGGG*-CEDS) revealed that KB cells were significantly decreased in
cell density and metachromasia in toluidine blue by TTAGGG*-CEDS compared to untreated control, while
only a slight decrease by TTTGGG*-CEDS (Fig. 2 A-C). The results showed that TTAGGG*-CEDS strongly
induced cell death, while TTTGGG*-CEDS induced cell death to a lesser extent than TTAGGG*-CEDS due to
a base pair inversion from A-T to T-A. On the other hand, CACGTG*-CEDS induced almost no change in cell
density, cell number, metachromasia in toluidine blue staining both visually and microscopically compared to
2(ACGT)*-CEDS and untreated control (Fig. 2 D-F).
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Figure 2. Cytological observation of KB cells treated with CEDS at 20-25 Gauss, twice daily for 20 min, during
3 days of cell culture with toluidine blue stain. For the comparison of CEDS-induced cytological results,
TTAGGG*-CEDS and TTTGGG*-CEDS were assessed compared to no CEDS (A- C), and CACGTG*CEDS
was compared with 2(ACGT)*-CEDS and no CEDS (D-F).
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IP-HPLC analysis for CEDS-induced changes of protein signaling pathways in RAW 264.7 cells
IP-HPLC has been developed to analyze the protein expression levels in comparison with the controls ( 5,
6). The immunoprecipitated proteins were subjected to the analysis with a HPLC (Agilent, USA) using a reverse
phase column packed with non-adherent silica beads. The control and experimental samples were analyzed in
sequence to permit a comparison of their HPLC peaks. IP-HPLC is available to use only small amount of total
protein, up to 20-50 μg, thereby it can detect wide range of protein signaling simultaneously and repeatedly even
with the limited amount of protein sample. However, IP-HPLC can provide the protein expression level in a
simple, fast, accurate, cheap, multiple, and automatic way compared to other ordinary protein detection methods.
In addition, the IP-HPLC data are available for statistical analysis.
The RAW 264.7 cells, derived from monocytes/macrophage-like cells of Balb/c mice, were utilized by
limiting their culture passage number to less than 20 (7). The cells were cultured in Dulbecco’s modified
Eagle’s medium supplemented with 10% fetal bovine serum, 100 units/mL carbenicillin, 100 μg/mL
streptomycin, and 250 ng/mL amphotericin B (WelGene, Korea), in 5% CO 2 incubator at 37.5°C. The cell
culture product containing 108-109 cells was placed in the incubator and treated with dodecagonal CEDS using a
target sequence at 20-25 Gauss, 5% CO2, and 37℃ for 20 minutes, left in the incubator for another 30 minutes,
and harvested by centrifugation at 150g for 10 min for the following IP-HPLC assay.
The RAW 264.7 cells were lysed using protein lysis buffer (iNtRON Biotechnology, Korea), and analyzed
by IP-HPLC as follow. Protein A/G agarose columns were separately pre-incubated with each 1 μg of 350
antibodies (Table S2). The supernatant of the antibody-incubated column was removed, and followed by IP-
HPLC. Briefly, each protein sample, 50-100 μg, was mixed with 5 mL of binding buffer (150mM NaCl, 10mM
Tris pH 7.4, 1mM EDTA, 1mM EGTA, 0.2mM sodium vanadate, 0.2mM PMSF and 0.5% NP-40) and
incubated in the antibody-bound protein A/G agarose bead column on a rotating stirrer at room temperature for
1 h. After multiple washing of the columns with Tris-NaCl buffer, pH 7.5, in a graded NaCl concentration
(0.15–0.3M), the target proteins were eluted with 300μL of IgG elution buffer (Pierce, USA). The
immunoprecipitated proteins were analyzed using a precision HPLC unit (1100 series, Agilent, Santa Clara, CA,
USA) equipped with a reverse-phase column and a micro-analytical UV detector system (SG Highteco, Hanam,
Korea). Column elution was performed using 0.15M NaCl/20% acetonitrile solution at 0.5 mL/min for 15 min,
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40˚C, and the proteins were detected using a UV spectrometer at 280 nm. The control and experimental samples
were run sequentially to allow comparisons.
For IP-HPLC, the whole protein peak areas (mAUs*) were obtained and calculated mathematically using
an analytical algorithm by subtracting the negative control antibody peak areas, and protein expression levels
were compared and normalized using the square roots of protein peak areas. IP-HPLC is available to use only
small amount of total protein, up to 20-50 μg, thereby it can detect a wide range of protein signaling
simultaneously and repeatedly even with the limited amount of protein sample. Since IP-HPLC gives the
relative ratio (%) of protein expression compared to untreated control, the protein expression data could be
analyzed statistically and widely compared with other protein expressions. The ratios were divided into five
categories; severe underexpression (below 80%), marked underexpression (80%-below 95%), minimal change
(95%-below 105%), marked overexpression (105%-120%), and severe overexpression (above 120%).
Although the immunoprecipitation is unable to define the size-dependent expression of target protein
compared to western blot, it collects every protein containing a specific epitope against antibody in the protein
samples from cells, blood, urine, saliva, inflammatory exudate, etc. ( 5, 6,
8-17). Therefore, IP-HPLC can detect
whole precursor and modified target proteins similar to enzyme-linked immunosorbent assay (ELISA), but the
antigen-antibody binding strength can be adjusted by different salt buffers depending on the condition of the
protein samples.
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Telomere repeat sequence*-CEDS induced potent anticancer signaling in RAW 264.7 cells
IP-HPLC results showed that TTAGGG*-CEDS upregulated 34 proteins (31.6%), downregulated 67
proteins (62.6%), and exhibited minimum effect on six proteins (5.6%) out of 107 telomere-associated proteins
observed in this study. In addition, The TTAGGG*-CEDS affected the overall protein signaling pathways in
RAW 264.7 cells by downregulating telomere-associated proteins and reactive proteins as well (Fig. 3A, Table
1), which were summarized as follows according to the expression of telomere-associated proteins.
Proliferating signaling was suppressed by downregulating Ki-67 (87.9%), PCNA (82.9%), CDK4 (82.9%),
p21 (89.8%), nucleolin (92.8%). cMyc/MAX/MAD network was suppressed by downregulating MAX (92.8%).
Wnt/β-catenin signaling was suppressed by downregulating TCF1 (85.2%), Snail1 (78.1%).
P53/Rb/E2F1 signaling was suppressed by downregulating p53 (77%), Rb1 (93.2%), CDK4 (82.9%),
E2F1 (83.3%). Protein translation signaling was suppressed by downregulating DOHH (89.8%), eIF2α
(91.5%). MiRNA biogenesis signaling was suppressed by downregulating AGO2 (82%).
Growth factor signaling was partially suppressed by downregulating EGFR (90%), IGF1 (85.8%), TGF β3
(78.5%), Met (90.9%). Cytodifferentiation signaling was partially suppressed by downregulating Ep-CAM
(85.5%). RAS signaling was suppressed by downregulating, NRAS (79.6%), PI3K (88.9%), PTEN (79.1%),
AMPKα (82.5%), JAK2 (89%), PKC (86.4%).
ER stress was suppressed by downregulating eIF2α (91.5%), GADD153 (85%), p-GADD153 (91.3%),
IRE1α (94.3%), LC3β (91.7%). Survival signaling was suppressed by downregulating SP1 (72.4%), sirtuin6
(85.2%). Acute inflammation signaling was suppressed by downregulating IL1 (93.2%), MCP1 (90.5%), CRP
(90.7%). PARP-mediated apoptosis signaling was suppressed by downregulating, PARP1 (94%), c-PARP
(93.8%).
Fibrosis signaling was suppressed by downregulating collagen 3A1 (90.9%), FGF1 (82.9%), laminin α5
(93.9%), integrin α5 (89.2%), integrin β1 (86.9%), α1-antitrypsin (91.6%), tenascin C (91.3%). Senescence
signaling was suppressed by downregulating klotho (85.1%), sirtuin6 (85.2%), p21 (89.8%). Telomere
signaling was suppressed by downregulating TERT (88.3%), TRF1 (89.9%), TIN2 (69.3%).
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Conversely, Notch/Jagged signaling was activated by upregulating Notch1 (109.6%). Osteogenesis
signaling appears to be activated by upregulating BMP2 (107.4%), BMP3 (133.2%), BMP4 (115%), RUNX2
(106.5%), OPG (112%), RANKL (122.1%). Neuromuscular differentiation signaling was activated by
upregulating NSEγ (120.4%), GFAP (106.2%), NK1R (111.1%), S100 (109.1%), αSMA (106.1%).
NFkB signaling was activated by upregulating NFkB (112.4%), p38 (118.1%), mTOR (113%) . Protection
signaling was activated by upregulating HSP27 (135.8%), HO1 (128%), FOXO3 (125.9%), NRF2 (124.1%),
HSP70 (121%), GSTO1/2 (107.3%). Angiogenesis signaling was activated by upregulating VEGFA (111.9%),
FGF2 (106.4%). Innate immunity signaling appears to be activated by upregulating lactoferrin (110.1%),
CAMP (125.8%), β-defensin1 (109.6%), β-defensin2 (111%), TLR2 (108.1%), elafin (118.5%). Cellular
immunity signaling was activated by upregulating CD44 (129.7%).
Chronic inflammation signaling was activated by upregulating IL6 (123.4%), IL10 (112.5%), COX2
(133%). P53-mediated apoptosis signaling appears to be activated by upregulating p73 (106.1%), PUMA
(113.8%), NOXA (111.7%), c-caspase9 (111.1%), caspase3 (130.3%). FAS-mediated apoptosis signaling was
activated by upregulating FAS (115%), BID (114%), caspase8 (109.6%), caspase3 (130.1%). Glycolysis
signaling was activated by upregulating LDHA (117%), GAPDH (111.1%).
In addition, TTAGGG*-CEDS variably influenced epigenetic modification signaling by upregulating
proteins involved in DNA methylation/acetylation such as KDM4D (107.1%), MBD4 (112.4%), HMGB1
(116.3%), therefore, it induced a trend towards an increase in the methylation of histones and DNAs,
transcriptional repression. TTAGGG*-CEDS broadly affected oncogenesis signaling by upregulating such as
BRCA1 (126.5%), cMyb (127.7%), ATM (118.2%), YAP1 (111.6%), PIM1 (108%) , significantly impacting the
entire protein signaling pathways in RAW 264.7 cells. In addition to the expressions of telomere-associated
proteins, the expressions of telomere-unassociated proteins in the cells treated with TTAGGG*-CEDS showed
similar trends to the above protein signaling (Fig. 3, Table 1).
Resultantly, TTAGGG*-CEDS primary inhibited RAS signaling, subsequently inactivating protection-ER
stress-survival signaling axis, p53- and FAS-mediated apoptosis signaling axis ,
and telomere-oncogenesis-
PARP-associated apoptosis-fibrosis axis, while activated NF-kB signaling, subsequently stimulating
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epigenetic modification-protection-angiogenesis signaling axis, p53- and FAS-mediated apoptosis-glycolysis-
chronic inflammation signaling axis (Fig. 3B).
The results indicate that TTAGGG*-CEDS induced potent anti-oncogenic effect with extensive apoptosis
on RAW 264.7 cells by inhibiting cell proliferation, ER stress, survival, cellular senescence, telomere instability,
and oncogenesis, and concurrently enhancing ROS protection, angiogenesis, apoptosis, glycolysis, and chronic
inflammation. It is noteworthy that TTAGGG*-CEDS also has the potential to enhance innate and cellular
immunity.
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Figure 3. TTAGGG*-CEDS influenced the protein signaling pathways (A) and axes (B) in RAW 264.7 cells. In
IP-HPLC, proteins downregulated (blue), upregulated (red), and minimally changed (green) compared to
untreated controls. Dominantly suppressed (blue square) and activated (red square) signaling. Telomere-
associated proteins (Harmonizome 3.0) were downregulated (●) or upregulated (●) by TTAGGG*-CEDS.
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Table 1. Protein expressions in RAW 264.7 cells treated with telomere sequence (TTAGGG)*-CEDS.
Signaling pathways Downregulated Proteins Upregulated Proteins
Proliferation Ki-67, PCNA, PLK4, CDK4, p15/16, p21,
nucleolin p14, CHK1
cMyc/MAX/MAD network MAX, MAD1
Wnt/β-catenin signaling APC, TCF1, Snail Wnt1, β-catenin, AXIN2
p53/Rb/E2F1 signaling p53, Rb1, CDK4, E2F1, E2F4
SHH/PTCH/GLI signaling PTCH1, GLI1
Notch/Jagged signaling Notch1, Jagged2
Epigenetic modification EZH2, PCAF, HMGA2, Ac-lysine KDM4D, MBD4, HMGB1
Protein translation DOHH, eIF5A1, eIF2α eIF2AK3
miRNA biogenesis AGO2, MTDH TRBP2, GW182
Growth factors GH, EGFR, IGF1, TGFα, TGFβ3, Met, FGF1,
progesterone
GHRH, IGF2R, ALK1, SMAD2/3, SMAD4,
SMAD7, HGFα, FGF2, FGF7, ERβ
Cytodifferentiation β-actin, calnexin, CRIP1, AP1M1, Ep-CAM,
SOSTDC1, tenascin C GAPDH, vimentin, CaM, DLX2, caveolin1
Osteogenesis osteocalcin, aggrecan BMP2, BMP3, BMP4, RUNX2, OPG, RANKL
Neuromuscular differentiation myosin-1a, desmin NSEγ, GFAP, NK1R, S100, αSMA
RAS signaling NRAS, PI3K, PTEN, PKA1α, AMPKα, PLCβ2,
JAK2, PKC, TYK2
HRAS, Rab1, MEKK, p-ERK1, STAT3, AKAP13,
p-JNK1, p-PKC1α, SOS1
NFkB signaling SRC1, NFATc1, NFAT5 NFkB, IKK, MDR, GADD45, p38, mTOR
p53-mediated apoptosis p53, p63, BAD, APAF1 p73, BAK, PUMA, NOXA, BCL2, c-caspase9,
caspase3
FAS-mediated apoptosis FASL FAS, FADD, BID, caspase8, caspase3
PARP-mediated apoptosis PARP1, c-PARP
Protection leptin, FOXP4, FOXO1, HSP90, NOS1 HSP27, HO1, FOXO3, NRF2, HSP70, SOD1,
GSTO1/2, ALDH1A1
ER stress eIF2α, GADD153, p-GADD153, IRE1α, LC3β HSP27, eIF2AK3, BIP
Angiogenesis HIF1α, VEGFR2, endocan, CD106, angiogenin,
PDGFA
VEGFA, VEGFC, vWF, LYVE1, TEM8, CMG2,
enthelin1, FGF2
Survival SP1, sirtuin6 sirtuin1, sirtuin3, sirtuin7
Acute inflammation IL1, IL8, MCP1, CRP TRAF6, MIF
Innate immunity CD56, TLR3, α1-antitrypsin Lactoferrin, CAMP, β-defensin1, β-defensin2,
TLR2, elafin
Cellular immunity CD4, CD34, granzyme B, PD1, CTLA4 CD8, CD20, CD28, CD40, CD44, CD99, perforin
Chronic inflammation M-CSF, CD68, CD106, TIMP1, TIMP2, LTA4H,
kininogen
IL6, IL10, lysozyme, MMP2, cathepsin C, COX1,
COX2
Glycolysis LGR4, PPARγ, TIGAR, GLUT1, HK2, LDHA, GAPDH
Fibrosis collagen 3A1, FGF1, laminin α5, integrin α5,
integrin β1, α1-antitrypsin, tenascin C FGF2, FGF7, uPA, PAI1
Oncogenesis
CRK, 14-3-3, MTDH, KLF4, MTA2, CRIP1,
HER2, EWSR1, ATR, BMI1, PDCD4, Ets1,
TWIST1, BACH1
CEA, AXL, BRCA1, cMyb, ATM, NF1, ZEB1,
YAP1, DMBT1, PIM1
Senescence klotho, sirtuin6, p21 sirtuin1, sirtuin3, sirtuin7, caveolin1
Telomere signaling TERT, TRF1, TIN2
The telomere sequence*-CEDS, TTAGGG*-CEDS induced the suppression (blue) and activation (red) of signaling pathways by
downregulating (blue) and upregulating (red) the proteins, respectively. The data were compared to the reports of recent manuscripts and
Harmonizome 3.0 website.
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Canonical E-box sequence*-CEDS induced significant oncogenic signaling in RAW 264.7 cells
IP-HPLC results showed that CACGTG*-CEDS upregulated 57proteins (35.8%), downregulated 75
proteins (47.2%), and exhibited minimum effect on 27 proteins (17%) out of 159 cMyc target proteins. In
addition, CACGTG*-CEDS concomitantly upregulated 77 proteins (40.3%) and downregulated 58 proteins
(30.4%) out of 191 cMyc non-target proteins indirectly. The CACGTG*-CEDS affected the overall protein
signaling pathways in RAW 264.7 cells by downregulating cMyc target proteins and reactive proteins as well
(Fig. 4A, Table 2), which were summarized as follows according to the expression of cMyc target proteins.
Proliferating signaling was partially inactivated by downregulating PCNA (90.6%), PLK4 (82.9%),
CDK4 (86.6%). cMyc/MAX/MAD network was suppressed by downregulating cMyc (91.6%), MAX (87.7 %),
p27 (91.4%). Wnt/β-catenin signaling appears to be inactivated by downregulating Wnt1 (92.2%), TCF1
(82.4%).
P53/Rb/E2F1 signaling was suppressed by downregulating p53 (80.6%), CDK4 (86.6%), E2F1 (91 %).
SHH/PTCH/GLI signaling was suppressed by downregulating SHH (89.8%), PTCH1 (90.1%), GLI (83.5 %).
Protein translation signaling appears to be inactivated by downregulating DHPS (90.6%). miRNA biogenesis
signaling was inactivated by downregulating Drosha (88.4%), MTDH (88.7%) .
Growth factor signaling was partially inactivated by downregulating, EGFR (92.2%), Met (89.2%).
Cytodifferentiation signaling was partially suppressed by downregulating CRIP1 (83.5%), Ep-CAM (85.9%).
ER stress was inactivated by downregulating eIF2AK3 (67%), p-GADD153 (90.6%), IRE1α (90.4%), LC3β
(92.9%). Angiogenesis signaling appears to be inactivated by downregulating VEGFR2 (89.9%), endocan
(74.8%), CD31 (92%), CD106 (91%), LYVE1 (90.7%), CMG2 (94.1%), angiogenin (77.4%).
Survival signaling was suppressed by downregulating SP1 (72.3%), XIAP (91.1%) . Acute inflammation
signaling appears to be inactivated by downregulating IL1 (81.4%), CXCR4 (93%). Innate immunity signaling
appears to be inactivated by downregulating CD56 (87.3%), TLR2 (77.1%), TLR3 (71.5%), α1-antitrypsin
(93.3%). Chronic inflammation signaling was inactivated by downregulating IL12 (85.3%), M-CSF (82.1%),
LTA4H (81.9%).
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FAS-mediated apoptosis signaling was suppressed by downregulating FASL (83.6%), FAS (89.3%), FLIP
(94.5%), caspase8 (90.3%). Fibrosis signaling was suppressed by downregulating collagen 3A1 (82.9%),
integrin α5 (88.4%), integrin β1 (82.7%), PAI1 (94.4%). Senescence signaling appears to be suppressed by
downregulating klotho (80.7%), p21 (91.7%), and coincidentally downregulating sirtuin6 (81.9%). Telomere
signaling was suppressed by downregulating TERT (87.1%), TRF1 (87.6%), TIN2 (67.6%).
Conversely, Notch/Jagged signaling was activated by upregulating Notch1 (105.7%). Osteogenesis
signaling was activated by upregulating BMP2 (134.8%), RUNX2 (109.1%), RANKL (113.7%). Neuronal
differentiation signaling was activated by upregulating S100 (109.1%), while muscular differentiation
signaling was inactivated by downregulating MYH2 (86.1%).
RAS signaling appears to be activated by upregulating NRAS (105.5%), pAKT1/2/3 (113.9%), p-STAT3
(110.3%), PKA1α (112.9%), c-Fos (115.3%), JAK2 (113.1%), p-PKCα (119.5%), SOS1 (125.4%). NFkB
signaling was activated by upregulating NFkB (123.4%), MDR (125.6%), GADD45 (121%), p38 (117%),
SRC1 (108%), mTOR (108.4%). Protection signaling appears to be activated by upregulating FOXO3
(122.4%).
Cellular immunity signaling appears to be activated by upregulating CD54 (105.6%) and downregulating
PD1 (82.2%). p53-mediated apoptosis signaling was activated by upregulating p73 (121.5%), BAK (105%),
PUMA (106.5%), NOXA (107.8%), BAX (114.3%), BCL2 (106%), caspase3 (116.2%). PARP-mediated
apoptosis signaling was activated by upregulating PARP1 (110.6%), c-PARP (118.9%). Glycolysis signaling
appears to be activated by upregulating HK2 (129.6%), LDHA (109%).
In addition, CACGTG*-CEDS, markedly influenced epigenetic modification signaling by downregulating
KDM4D (87.2%), EZH2 (91.9%), BRG1 (93.2%), significantly suppressed oncogenesis signaling by
downregulating TWIST (94%), BRCA1 (93.3%), PDCD4 (92.9%), MTA2 (90.5%), MTDH (88.7%), ATR
(84.9%), HER2 (83.9%), CRIP1 (83.5%), BRCA2 (83.2%), Ets1 (80.9%) . Besides the expressions of cMyc
target proteins, the expressions of cMyc non-target proteins in the cells treated with CACGTG*-CEDS were
summarized in Table S3.
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Consequently, CACGTG*-CEDS strongly impacted the entire protein signaling pathways in RAW 264.7
cells. CACGTG*-CEDS enhanced RAS-NFkB signaling axis, subsequently activating epigenetic modification-
protection-Notch/Jagged-osteogenesis signaling axis, p-53 and PARP- mediated apoptosis signaling axis,
glycolysis-oncogenesis-chronic inflammation, and cellular immunity signaling axis, while it inactivated
proliferation-related signaling axis, ER stress-angiogenesis-survival-senescence-acute inflammation-innate
immunity signaling axis, and FAS-mediated apoptosis-fibrosis-telomere signaling axis (Fig. 4B).
The results indicate that CACGTG*-CEDS increased the oxidative stress, p53- and PARP-mediated
apoptosis, glycolysis, oncogenesis, and chronic inflammation in RAW 264.7 cells, but decreased the
proliferation, ER stress, angiogenesis, survival, senescence, acute inflammation, FAS-mediated apoptosis, and
telomere instability, thereby, providing oncogenic environment with reduced potential of the cytodifferentiation,
regeneration, wound healing, and innate and cellular immunity in the cells.
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Figure 4. CACGTG*-CEDS influenced the protein signaling pathways (A) and axes (B) in RAW 264.7 cells. In
IP-HPLC, proteins downregulated (blue), upregulated (red), and minimally changed (green) compared to
untreated controls. Dominantly suppressed (blue square) and activated (red square) signaling. cMyc target
proteins (Harmonizome 3.0) were downregulated (●) or upregulated (●) by CACGTG*-CEDS.
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Table 2. Protein expressions in RAW 264.7 cells treated with canonical E-box sequence (CACGTG)*-
CEDS.
Signaling pathways Downregulated Proteins Upregulated Proteins
Proliferation PCNA, PLK4, CDK4, p15/16, p21, p27, CHK1 p14, nucleolin
cMyc/MAX/MAD network cMyc, MAX, MAD1, p27
Wnt/β-catenin signaling Wnt1, TCF1 β-catenin, APC, AXIN2
p53/Rb/E2F1 signaling p53, CDK4, E2F1, E2F4 Rb1
SHH/PTCH/GLI signaling SHH, PTCH1, GLI1
Notch/Jagged signaling Notch1, Jagged2
Epigenetic modification histone H1, KDM4D, EZH2, BRG1 MBD4, DNMT1, Ac-lysine, lamin A/C
Protein translation DHPS, eIF2AK3
miRNA biogenesis Drosha, Exportin5, MTDH TRBP2
Growth factors EGF, EGFR, TGFα, TGFβ3, SMAD2/3, Met,
progesterone GH, IGF1, SMAD4, SMAD7, FGF7, CTGF, ERβ
Cytodifferentiation
β-actin, TGase2, CRIP1, AP1M1, Ep-CAM,
cystatin A, DLX2, VE-cadherin, SOSTDC1,
tenascin C
α-tubulin, vimentin, FAK, calnexin, claudin1,
caveolin1
Osteogenesis PTH/PTHrPR, osteocalcin, aggrecan BMP2, BMP4, osterix, RUNX2, OPG, RANKL,
osteopontin, osteonectin
Neuromuscular differentiation GFAP, myosin-1a, MYH2, desmin NSEγ, NK1R, S100
RAS signaling PI3K, Rab1, p-ERK1, PTEN, AMPKα, p-TYK2 NRAS, pAKT1/2/3, p-STAT3, PKA1α, PLCβ2, c-
Fos, JAK2, p-PKC1α, SOS1
NFkB signaling p-p38, NFATc1, NFAT5 NFkB, MDR, GADD45, p38, SRC1, mTOR
p53-mediated apoptosis p53, p63 P73, BAD, BAK, PUMA, NOXA, BAX, BCL2,
caspase9, c-caspase9, caspase3
FAS-mediated apoptosis FASL, FAS, FLIP, caspase8 FADD, TRAIL, BID, caspase3
PARP-mediated apoptosis PARP1, c-PARP
Protection FOXO1, HSP70, NOS1, HSP90 FOXP4, FOXO3, HSP27, NRF2, HO1, GSTO1/2,
SOD1
ER stress eIF2AK3, p-GADD153, IRE1α, LC3β HSP27, BIP, ATF4, ATF6α
Angiogenesis VEGFR, endocan, CD31, CD106, LYVE1,
CMG2, angiogenin HIF1α, VEGFC, vWF, endothelin1, PDGFA
Survival SP1, sirtuin6, XIAP sirtuin3, sirtuin7
Acute inflammation IL1, IL8, CXCR4 TNFα, TRAF6, MCP1, MIF
Innate immunity CD56, TLR2, TLR3, α1-antitrypsin Lactoferrin, TLR4, elafin
Cellular immunity CD8, CD20, CD34, PD1 CD28, CD40, CD54, IL28, perforin, PDL1
Chronic inflammation IL10, IL12, M-CSF, CD31, CD106, TIMP1,
TIMP2, cathepsin K, COX1, LTA4H, kininogen
Lysozyme, MMP2, MMP9, MMP10, MMP12,
cathepsin C, cathepsin G, COX2
Glycolysis GLUT4, TIGAR HK2, LDHA, GAPDH, GLUT1
Fibrosis collagen 3A1, laminin α5, integrin α5, integrin
β1, PAI1, α1-antitrypsin, tenascin C FGF7, CTGF, claudin1
Oncogenesis BMI1, TWIST1, BRCA1, PDCD4, MTA2,
MTDH, ATR, HER2, CRIP1, BRCA2, Ets1
XBP1, NF1, ATM, CEA, ZEB1, AXL, EWSR1,
cMyb, PIM1, YAP1, KLF4, DMBT1, 14-3-3, CRK
Senescence klotho, sirtuin6, p21 sirtuin3, sirtuin7, caveolin1
Telomere signaling TERT, TRF1, TIN2
The canonical E-box sequence*-CEDS, CACGTG*-CEDS induced the suppression (blue) and activation (red) of signaling pathways by
downregulating (blue) and upregulating (red) the proteins, respectively. The data were compared to the reports of recent manuscripts and
Harmonizome 3.0 website.
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Table 3. The targeting efficiency of CEDS using a different DNA motif sequence in RAW 264.7
cells
Protein binding site
sequence*-CEDS
Up-regulation
(over 105%)
Down-
regulation
(under 95%)
Minimal
change
(±5%)
Total
target
proteins
TTAGGG*-CEDS
(telomere repeat sequence)
34 67 6 107
31.6% 62.6% 5.6% 100%
CACGTG*-CEDS
(canonical E-box sequence)
57 75 27 159
35.8% 47.2% 17% 100%
Total
91 142 33 266
34.2% 53.4% 12.4% 100%
12A*-CEDS
(nonspecific sequence)
130 122 98 350
37.1% 34.9% 28% 100%
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Nonspecific poly-A 12A*-CEDS induced imbalanced protein signaling in RAW 264.7 cells
RAW 264.7 cells were also treated with CEDS using nonspecific poly-A sequence (12A*-CEDS) as a
positive control, and analyzed by IP-HPLC to compared with the results of TTAGGG*-CEDS and CACGTG*-
CEDS. In constrast, 12A*-CEDS resulted in imbalanced protein signaling in RAW 264.7 cells, activating
epigenetic methylation, oncogenesis, and telomere instability, leading to chronic inflammation and apoptosis, in
the absence of cellular growth and differentiation, wound healing, and ROS protection (Fig. 5, Table 4) . The
variable protein expressions after 12A*-CEDS were detected by IP-HPLC using 350 antisera, and their
imbalaced influences in different signaling pathways were summarized and described in Supplement Text.
Therefore, it is postulated that 12A*-CEDS induced irregular upregulation and downregulation of multiple
signaling pathways due to imbalanced stimulation of gene transcription by targeting poly-A sequences widely
distributed in genome, resulted in the aging and retrogressive changes with a high potential of oncogenesis.
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Figure 5. The telomere sequence (TTAGGG)*-CEDS influenced the protein signaling pathway system (A) and
axes (B) in RAW 264.7 cells. The IP-HPLC results revealed proteins that were downregulated ( blue),
upregulated (red), and minimally changed (green) compared to the untreated controls. Dominantly suppressed
(blue square) and activated (red square) signaling pathways. Telomere-associated proteins (Harmonizome 3.0),
downregulated (●) or upregulated (●) by the TTAGGG*-CEDS.
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Table 4. Protein expressions in RAW 264.7 cells treated with telomere sequence (TTAGGG)*-CEDS.
Signaling pathways Downregulated Proteins Upregulated Proteins
Proliferation Ki-67, PCNA, PLK4, CDK4, p15/16, p21,
nucleolin p14, CHK1
cMyc/MAX/MAD network MAX, MAD1
Wnt/β-catenin signaling APC, TCF1, Snail Wnt1, β-catenin, AXIN2
p53/Rb/E2F1 signaling p53, Rb1, CDK4, E2F1, E2F4
SHH/PTCH/GLI signaling PTCH1, GLI1
Notch/Jagged signaling Notch1, Jagged2
Epigenetic modification EZH2, PCAF, HMGA2, Ac-lysine KDM4D, MBD4, HMGB1
Protein translation DOHH, eIF5A1, eIF2α eIF2AK3
miRNA biogenesis AGO2, MTDH TRBP2, GW182
Growth factors GH, EGFR, IGF1, TGFα, TGFβ3, Met, FGF1,
progesterone
GHRH, IGF2R, ALK1, SMAD2/3, SMAD4,
SMAD7, HGFα, FGF2, FGF7, ERβ
Cytodifferentiation β-actin, calnexin, CRIP1, AP1M1, Ep-CAM,
SOSTDC1, tenascin C GAPDH, vimentin, CaM, DLX2, caveolin1
Osteogenesis osteocalcin, aggrecan BMP2, BMP3, BMP4, RUNX2, OPG, RANKL
Neuromuscular differentiation myosin-1a, desmin NSEγ, GFAP, NK1R, S100, αSMA
RAS signaling NRAS, PI3K, PTEN, PKA1α, AMPKα, PLCβ2,
JAK2, PKC, TYK2
HRAS, Rab1, MEKK, p-ERK1, STAT3, AKAP13,
p-JNK1, p-PKC1α, SOS1
NFkB signaling SRC1, NFATc1, NFAT5 NFkB, IKK, MDR, GADD45, p38, mTOR
p53-mediated apoptosis p53, p63, BAD, APAF1 p73, BAK, PUMA, NOXA, BCL2, c-caspase9,
caspase3
FAS-mediated apoptosis FASL FAS, FADD, BID, caspase8, caspase3
PARP-mediated apoptosis PARP1, c-PARP
Protection leptin, FOXP4, FOXO1, HSP90, NOS1 HSP27, HO1, FOXO3, NRF2, HSP70, SOD1,
GSTO1/2, ALDH1A1
ER stress eIF2α, GADD153, p-GADD153, IRE1α, LC3β HSP27, eIF2AK3, BIP
Angiogenesis HIF1α, VEGFR2, endocan, CD106, angiogenin,
PDGFA
VEGFA, VEGFC, vWF, LYVE1, TEM8, CMG2,
enthelin1, FGF2
Survival SP1, sirtuin6 sirtuin1, sirtuin3, sirtuin7
Acute inflammation IL1, IL8, MCP1, CRP TRAF6, MIF
Innate immunity CD56, TLR3, α1-antitrypsin Lactoferrin, CAMP, β-defensin1, β-defensin2,
TLR2, elafin
Cellular immunity CD4, CD34, granzyme B, PD1, CTLA4 CD8, CD20, CD28, CD40, CD44, CD99, perforin
Chronic inflammation M-CSF, CD68, CD106, TIMP1, TIMP2, LTA4H,
kininogen
IL6, IL10, lysozyme, MMP2, cathepsin C, COX1,
COX2
Glycolysis LGR4, PPARγ, TIGAR, GLUT1, HK2, LDHA, GAPDH
Fibrosis collagen 3A1, FGF1, laminin α5, integrin α5,
integrin β1, α1-antitrypsin, tenascin C FGF2, FGF7, uPA, PAI1
Oncogenesis
CRK, 14-3-3, MTDH, KLF4, MTA2, CRIP1,
HER2, EWSR1, ATR, BMI1, PDCD4, Ets1,
TWIST1, BACH1
CEA, AXL, BRCA1, cMyb, ATM, NF1, ZEB1,
YAP1, DMBT1, PIM1
Senescence klotho, sirtuin6, p21 sirtuin1, sirtuin3, sirtuin7, caveolin1
Telomere signaling TERT, TRF1, TIN2
The telomere sequence*-CEDS, TTAGGG*-CEDS induced the suppression (blue) and activation (red) of signaling pathways by
downregulating (blue) and upregulating (red) the proteins, respectively. The data were compared to the reports of recent manuscripts and
Harmonizome 3.0 website.
(which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission.
The copyright holder for this preprintthis version posted August 27, 2024. ; https://doi.org/10.1101/2024.08.25.609549doi: bioRxiv preprint
24