RESUMEN

Endometriosis causes immunological and cellular alterations. Endometriosis lesions have lower levels of lamin b1 than the endometrium. Moreover, high levels of pro-inflammatory markers are observed in the peritoneal fluid, follicular fluid, and serum in endometriosis lesions. Thus, we hypothesized that the accumulation of senescent cells in endometriosis tissues would facilitate endometriosis maintenance in an inflammatory microenvironment. To study senescent cell markers and the senescence-associated secretory phenotype (SASP) in endometriosis lesions, we conducted a cross-sectional study with 27 patients undergoing video laparoscopy for endometriosis resection and 19 patients without endometriosis. Endometriosis lesions were collected from patients with endometriosis, while eutopic endometrium was collected from patients both with and without endometriosis. Tissues were evaluated for senescence markers (p16Ink4a, lamin b1, and IL-1ß) and interleukin concentrations. The expression of p16Ink4a increased in lesions compared to that in eutopic endometrium from endometriosis patients in the secretory phase. In the proliferative phase, lesions exhibited lower lamin b1 expression but higher IL-4 expression than the eutopic endometrium. Further, IL-1ß levels were higher in the lesions than in the eutopic endometrium in both the secretory and proliferative phases. We believe that our findings may provide targets for better therapeutic interventions to alleviate the symptoms of endometriosis.

Asunto(s)

Endometriosis , Interleucina-1beta/metabolismo , Biomarcadores/metabolismo , Senescencia Celular , Estudios Transversales , Inhibidor p16 de la Quinasa Dependiente de Ciclina/genética , Inhibidor p16 de la Quinasa Dependiente de Ciclina/metabolismo , Endometriosis/patología , Endometrio/metabolismo , Femenino , Humanos , Lamina Tipo B

RESUMEN

AIM: Lipschütz ulcers (LU) were first described as rare vulvar ulcerations that affect adolescents without previous history of sexual contact. However, more LU patients have been identified in acute genital ulcers (AGU) services in Europe. PURPOSE: To review cases of AGU and analyze the occurrence of LU in the Ob/Gyn Emergency Department of a Brazilian private hospital, using the currently used diagnostic criteria. METHODS: All female patients who sought our service with AGU complaints from January 2009 to July 2015 were selected and had their medical records reviewed, considering the clinical data and some diagnostic criteria, that included: < 20 years old, first AGU episode, sudden onset, absence of sexual contact 3 months before onset and the absence of immunodeficiency. RESULTS: 273 patients eligible for analysis were identified according to the criteria and 12 (4.39%) of them were identified with the possible diagnosis of LU. By applying less restrictive criteria that allowed the inclusion of patients of any age and sexual status, 98 were identified (35.89%). CONCLUSIONS: Despite being described as a rare pathology, ours and previous results indicate a considerable number of AGU cases, suggesting that LU should be better known and considered for differential diagnosis.

Asunto(s)

Úlcera/diagnóstico , Enfermedades de la Vulva/diagnóstico , Adolescente , Adulto , Anciano , Brasil , Niño , Bases de Datos Genéticas , Diagnóstico Diferencial , Europa (Continente) , Femenino , Herpes Genital/complicaciones , Herpes Genital/diagnóstico , Humanos , Persona de Mediana Edad , Úlcera/patología , Úlcera/virología , Enfermedades de la Vulva/patología , Enfermedades de la Vulva/virología , Adulto Joven

RESUMEN

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.

Asunto(s)

Biopsia , Endometriosis/metabolismo , Endometrio/metabolismo , Lamina Tipo B/metabolismo , Enfermedades Uterinas/metabolismo , Adulto , Apoptosis , Biomarcadores/metabolismo , Estudios de Casos y Controles , Estudios Transversales , Endometriosis/sangre , Endometriosis/patología , Endometrio/patología , Femenino , Técnica del Anticuerpo Fluorescente , Genes p16 , Humanos , Inmunohistoquímica , Lamina Tipo B/genética , Enfermedades Uterinas/sangre , Enfermedades Uterinas/patología , Útero/patología

RESUMEN

Wharton's jelly mesenchymal stem cells (WJ-MSC) exhibit immunomodulatory effects on T cell response. WJ-MSC are easy to collect, process, and proliferate rapidly in culture, but information on the variability of individual cell samples impacting upon in vitro expansion, immunomodulatory potential, and aging processes is still lacking. We propose to evaluate the immunomodulatory cytokine profile and capacity to inhibit T cell proliferation of WJ-MSC progressing to replicative senescence in order to analyze if expected responses are affected. Our results show that the gene expression of immunomodulatory molecules varied among samples with no specific pattern present. In coculture, all WJ-MSC were capable of inhibiting mitogen-activated CD3+ T cell proliferation, although to different degrees, and each PBMC responded with a different level of inhibition. Thus, we suggest that each WJ-MSC displays unique behavior, differing in patterns of cytokine mRNA expression and immunomodulatory capacity. We believe that variability between samples may play a role in the effectiveness of WJ-MSC employed therapeutically.