Interleukin-15 and Interleukin-7 are the Major Cytokines to Maintain Endometriosis

Author(s)

Bellelis, Patrick ^[1] ; Barbeiro, Denise Frediani ^[2] ; Gueuvoghlanian-Silva, Barbara Yasmin ^[3] ; Kalil, Jorge ^[4] ; Abrao, Mauricio Simoes ^{[1, 5]} ; Podgaec, Sergio ^{[1, 3]}

Affiliation

^[1] Univ Sao Paulo, Dept Obstet & Gynecol, Med Sch, Rua Dr Homem de Mello 1020, BR-05007002 Sao Paulo, SP - Brazil

^[2] Univ Sao Paulo, Med Invest Lab LIM 51, Med Sch, Sao Paulo - Brazil

^[3] Albert Einstein Hosp, Jewish Teaching & Res Inst, Sao Paulo - Brazil

^[4] Discipline Allergy & Immunol HC Incor FMUSP, INCT, Sao Paulo - Brazil

^[5] BP A Beneficencia Portuguesa Sao Paulo, Gynecol Div, Sao Paulo - Brazil

• Document type: Journal article
• Source: GYNECOLOGIC AND OBSTETRIC INVESTIGATION; v. 84, n. 5, p. 435-444, SEP 2019.
• Web of Science Citations: 1

Abstract

Objective: The objective of this study was to evaluate cytokines related to natural killer and T-regulatory cells in endometriotic lesions, peritoneal fluid (PF) and the peripheral blood (PB) of patients with deep infiltrative endometriosis. Study Design: A case-control study was conducted in a tertiary referral hospital. Sixty-four consecutive patients after laparoscopy were divided into 2 groups: with endometriosis (Group A - n = 32) and without endometriosis (Group B - n = 32). Main Outcome Measures: Interleukin (IL)-2, IL-4, IL-7, IL-10, IL-12, IL-15, transforming growth factor beta 1, and IFN gamma concentration was measured using a Luminex(TM) multiplex suspension bead array. Tissues from endometriotic lesions of patients with endometriosis and from eutopic endometrium were evaluated, as well as PF and PB of all patients. Results: Compared to the other analyzed groups, IL-15 concentration was significantly higher in the ectopic endometrium and IL-7 in the eutopic endometrium of the endometriosis group (p < 0.05). Compared to endometriosis group, IFN gamma, IL-7, and IL-15 were observed to be significantly higher in the PF of the control group, and IL-10 was lower in the control group (p < 0.05). In PB, compared to endometriosis group, IL-4, IL-10, IL-12, IL-15, and IFN gamma concentrations were significantly higher in the control group (p < 0.05). Conclusions: Our hypothesis is that deep endometriosis is a disease out of control. This disease's nature is of progression and invasion of adjacent structures, and proof of this disease state is the disorganized secretion of cytokine regulation and inflammation, which seem to be among the factors responsible for the maintenance of the disease. (AU)

• FAPESP's process: 10/10338-0 - Endometriosis: molecular bases of immune response
• Grantee: Maurício Simões Abrão
• Support Opportunities: Research Projects - Thematic Grants