Amir-Hassan Zarnani

BACKGROUND: Decidualization, the process of endometrial stem/stromal cell (EnSCs) differentiation, is essential for embryo implantation and pregnancy maintenance. Menstrual blood-derived stem/stromal cells (MenSCs), although often considere…

Endometriosis, an inflammatory disease, is characterized by the aberrant presence of endometrial tissues at ectopic locations. Accumulating evidence suggests that inflammatory cells, such as interleukin-17 (IL-17)-producing cells, may be in…

Endometriosis happens following the implantation of endometrial-derived tissues outside the uterine cavity. It has been suggested that 2, 3, 7, 8-Tetrachlorodibenzo-p-dioxin (TCDD) is involved in endometriosis development. Furthermore, aryl…

BACKGROUND: Regulatory T cells (Tregs) play an important role in fine-tuning of immune responses and are pivotal for a successful pregnancy. Recently, the importance of mesenchymal stem cells in regulation of immune responses in general and…

OBJECTIVES: Vitamin D has potent immunoregulatory features and modulates innate and adaptive immune responses. There is a significant association between intrauterine infection-associated inflammatory responses and pregnancy complications s…

A highly proliferative mesenchymal stem/stromal cell (MSC) population was recently discovered in the dynamic, cyclically regenerating human endometrium as clonogenic stromal cells that fulfilled the International Society for Cellular Therap…

BACKGROUND: Endometriosis is a chronic, painful, and inflammatory disease characterized by extra-uterine growth of endometrial tissues. Increased angiogenesis and resistance to apoptosis have been suggested to be involved in pathogenesis an…

BACKGROUND: Endometriosis is one of the most common chronic gynecological disorders affecting women at reproductive age. Dysregulation of immune cells, including regulatory T (Treg) cells has contributed to the growth of ectopic lesion in p…

Endometriosis, a chronic inflammatory disease, is identified by the presence of endometrial tissue outside the uterus. The prevalence of this disease among reproductive-age women is almost 10-15%. High levels of IL-6 and IL-8 have been foun…

Although natural killer (NK) cells play a crucial role in the maintenance of a successful pregnancy, their cytotoxic activity should be tightly controlled. We hypothesized that endometrial mesenchymal stromal/stem cells (eMSCs) could potent…

BACKGROUND: It is more than sixty years that the concept of the fetal allograft and immunological paradox of pregnancy was proposed and in this context, several regulatory networks and mechanisms have been introduced so far. It is now gener…

PROBLEM: We aimed to evaluate modulatory effects of vitamin D3 on endometriosis-related features of endometriotic stromal cells. METHOD OF STUDY: The effect of vitamin D3 on adhesion, invasion, proliferation, apoptosis, cytokine production…

BACKGROUND: Toll-like receptor (TLR)-mediated inflammatory processes are supposed to be involved in pathophysiology of spontaneous abortion and preterm labor. Here, we investigated functional responses of human endometrial stromal cells (ES…

BACKGROUND: One of the promising methods in fertility preservation among women with cancer is cryopreservation of ovarian cortex but there are many drawbacks such as apoptosis and considerable reduction of follicular density in the transpla…

Retrograde flow of menstrual blood cells during menstruation is considered as the dominant theory for the development of endometriosis. Moreover, current evidence suggests that endometrial-derived stem cells are key players in the pathogene…

OBJECTIVE: To study immunophenotype, differential proliferation capacity, invasiveness, adhesion, and cytokine production in ectopic and eutopic endometrial stromal cells (EESCs and EuESCs) from patients with endometriosis. DESIGN: In vitr…