Follicular fluid alterations in endometriosis: label-free proteomics by MS(E) as a functional tool for endometriosis

Regiani T, Thais Regiani, Thaís Regiani, Fernanda Bertuccez Cordeiro, Lívia do Vale Teixeira da Costa, Salgueiro J, Jéssica Silva Salgueiro, Jéssica Salgueiro, Karina Cardozo, Cardozo K, Karina Helena Morais Cardozo, Valdemir Melechco Carvalho, Perkel KJ, Kayla Jane Perkel, Daniel Suslik Zylbersztejn, Cedenho AP, A.P. Cedenho, Agnaldo Pereira Cedenho, Edson Guimarães Lo Turco, E.G. Lo Turco
Systems biology in reproductive medicine · 2015 · vol. 61(5) , pp. 263–276 · doi:10.3109/19396368.2015.1037025 · PMID:26114977 · W1829594219
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This study identified distinct protein profiles in follicular fluid from women with and without endometriosis, revealing proteins potentially related to disease progression and IVF success.

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Abstract

Endometriosis is a chronic gynecological condition that affects 10-32% of women of reproductive age and may lead to infertility. The study of protein profiles in follicular fluid may assist in elucidating possible biomarkers related to this disease. For this, follicular fluid samples were obtained from women with tubal factor or minimal male factor infertility who had pregnancy outcomes after in vitro fertilization (IVF) treatment (control group, n = 10), women with endometriosis (endometriosis group, n = 10), along with the endometrioma from these same patients were included (endometrioma group, n = 10). For proteomic analysis, samples were pooled according to their respective groups and normalized to protein content. Proteins were analyzed by in tandem mass spectrometry (MS(E)) Spectra processing and the ProteinLynx Global Server v.2.5. was used for database searching. Data was submitted to the biological network analysis using Cytoscape 2.8.2 with ClueGO plugin. As a result, 535 proteins were identified among all groups. The control group differentially or uniquely expressed 33 (6%) proteins and equal expression of 98 (18%) proteins was observed in the control and endometriosis groups of which 41 (7%) proteins were further identified and/or quantified. Six (1%) proteins were observed in both the endometriosis and endometrioma groups, but 212 (39%) proteins were exclusively identified and/or quantified in the endometrioma group. There were 9 (1%) proteins observed in both the control and endometrioma groups and there were 139 (25%) proteins common among all three groups. Distinct differences among the protein profiles in the follicular fluid of patients included in this study were found, identifying proteins related to the disease progression and IVF success. Thus, some pathways related to endometriosis are associated with the presence of specific proteins, as well as the absence of others. This study provides a first step to the development of more sensitive diagnostic tests and treatment.

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Condition tags

endometriosisendometriomainfertility

MeSH descriptors

Endometriosis Follicular Fluid Adult Adult Biomarkers Biomarkers Biomarkers Endometriosis Endometriosis Female Female Fertilization in Vitro Fertilization in Vitro Follicular Fluid Follicular Fluid Humans Humans Pregnancy Pregnancy Protein Footprinting

Citation neighborhood (2-hop)

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (49)

Cited by (37)

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