Depleted lamin B1: a possible marker of the involvement of senescence in endometriosis?

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This study found reduced lamin B1 levels in ectopic endometrium compared to eutopic endometrium in endometriosis patients, suggesting senescent cells may contribute to the disease.

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Abstract

PROPOSE: Endometriosis is a benign disease characterized by implantation and the growth of endometrial tissue outside the uterine cavity and it shares similarities with cancer. Lamin B1, p16 and p21 play a role on cell cycle regulation, development, cell repair and its activities are related to cancers. Considering the similarities between endometriosis and cancer, the aim of the present cross-sectional study is to detect p16, p21 and Lamin B1 in the ectopic endometrium of patients with endometriosis (n = 8) with eutopic (n = 8) and control endometrium (n = 8) and relate them to the maintenance and development of endometriosis. METHODS: Biopsies were obtained from both eutopic and ectopic, from deep infiltrating lesions, endometrium frozen and used for immunofluorescent (p16) or immunohistochemistry procedures (p16, p21, lamin B1). RESULTS: Detected higher lamin B1 in the eutopic endometrium when compared with ectopic endometrium, with no differences between endometriosis tissue with control endometrium. Similar presence of p16 in all groups of patients and no p21 detection was observed. CONCLUSION: We observed reduced detection of lamin B1 in the ectopic endometrium raising the possibility that the presence of senescent cells might be contributing to the maintenance and progression of endometriosis by apoptosis resistance and peritoneal stress inherent of the disease.
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Abstract

Propose Endometriosis is a benign disease characterized by implantation and the growth of endometrial tissue outside the uterine cavity and it shares similarities with cancer. Lamin B1, p16 and p21 play a role on cell cycle regulation, development, cell repair and its activities are related to cancers. Considering the similarities between endometriosis and cancer, the aim of the present cross-sectional study is to detect p16, p21 and Lamin B1 in the ectopic endometrium of patients with endometriosis (n = 8) with eutopic (n = 8) and control endometrium (n = 8) and relate them to the maintenance and development of endometriosis.

Methods

Biopsies were obtained from both eutopic and ectopic, from deep infiltrating lesions, endometrium frozen and used for immunofluorescent (p16) or immunohistochemistry procedures (p16, p21, lamin B1).

Results

Detected higher lamin B1 in the eutopic endometrium when compared with ectopic endometrium, with no differences between endometriosis tissue with control endometrium. Similar presence of p16 in all groups of patients and no p21 detection was observed.

Conclusion

We observed reduced detection of lamin B1 in the ectopic endometrium raising the possibility that the presence of senescent cells might be contributing to the maintenance and progression of endometriosis by apoptosis resistance and peritoneal stress inherent of the disease. Similar content being viewed by others

References

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Acknowledgement

We would like to thank Aline da Silva and Helen Mendes for technical assistance during sample collection and processing. Author information Authors and Affiliations Contributions H Malvezzi: Protocol/project development; Data collection or management; Data analysis; Manuscript writing/editing, BG Viana: Data collection or management, C Dobo: Data collection or management, RZ Filippi: Data collection or management, S Podgaec: Protocol/project development, Data collection or management; Data analysis; Manuscript writing/editing, CA Piccinato: Protocol/project development; Data collection or management; Data analysis; Manuscript writing/editing. Corresponding author Ethics declarations Conflicts of interest Helena Malvezzi declares that she has no conflict of interest. Bruno Gallani Viana declares that he has no conflict of interest. Cristine Dobo declares that she has no conflict of interest. Renee Zon Filippi declares that she has no conflict of interest. Sérgio Podgaec declares that he has no conflict of interest. Carla Azevedo Piccinato declares that she has no conflict of interest. Ethical approval This article does not contain any studies with animals performed by any of the authors. Human and animal rights All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the Committee on Human Research of the Hospital Albert Einstein (Number 56229916.9.0000.0071; São Paulo, Brazil), which is part of the Ethics Committee of the Brazilian Ministry of Health (CONEP) on July 13th, 2016. Informed consent Informed consent was obtained from all individual participants included in the study. All patients provided informed consent after the nature of the study was fully explained, and institutional review board approval. Electronic supplementary material Below is the link to the electronic supplementary material. Rights and permissions About this article Cite this article Malvezzi, H., Viana, B.G., Dobo, C. et al. Depleted lamin B1: a possible marker of the involvement of senescence in endometriosis?. Arch Gynecol Obstet 297, 977–984 (2018). https://doi.org/10.1007/s00404-018-4691-y Received: Accepted: Published: Version of record: Issue date: DOI: https://doi.org/10.1007/s00404-018-4691-y

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endometriosis

MeSH descriptors

Biopsy Endometriosis Endometrium Lamin Type B Uterine Diseases Adult Apoptosis Biomarkers Biomarkers Case-Control Studies Cross-Sectional Studies Endometriosis Endometriosis Endometriosis Endometrium Endometrium Female Fluorescent Antibody Technique Genes, p16 Humans

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