Iwabe T

PROBLEM: How is the tumor necrosis factor (TNF) α-induced inhibitor of apoptosis (IAP) protein expression in endometriotic stromal cells (ESCs) involved in cell viability and signaling pathways? METHOD OF STUDY: Endometriotic stromal cells …

ObjectiveTo evaluate the effects of parthenolide on human endometriotic cells and murine endometriotic lesions.DesignExperimental study.SettingUniversity hospital and laboratory of animal science.Patient(s) and animal(s)Twenty women with ov…

AIMS: We investigated the potential of gonadotropin-releasing hormone (GnRH) agonists and GnRH antagonists to inhibit cell proliferation in endometriotic and endometrial stromal cells. METHODS: Twenty patients with ovarian endometriomas and…

The nuclear factor kappaB (NF-kappaB) is a ubiquitously expressed transcription factor playing vital roles in innate immunity and other processes involving cellular survival, proliferation, and differentiation. This review highlights the im…

Apoptosis is a distinctive form of programmed cell death resulting in the efficient elimination of cells without eliciting an inflammatory response. Endometriosis is characterized by the presence of endometrial cells with capacity to avoid …

ObjectiveTo search for the demethylated cytosine-phosphate-guanine (CpG) islands within the aromatase gene in stromal cells derived from endometriotic chocolate cysts.DesignProspective study.SettingDepartment of Obstetrics and Gynecology an…

Endometriosis causes pelvic pain and infertility in women of reproductive age. We explored TNFalpha-induced specific signaling pathways and gene expressions in endometriotic stromal cells (ESCs). Based on the data of the pathway specific cD…

ObjectiveTo determine whether serum interleukin (IL)-8 concentration can be measured in patients with ovarian endometrioma and whether this measurement is a useful tool in diagnosing this disease.DesignA controlled clinical study and an in …

Ovarian surface epithelial cells (OSEs) are considered to be the common source of endometrioma and epithelial ovarian cancer. The present study reveals that keratinocyte growth factor receptor (KGFR) messenger RNA was expressed in OSEs of e…

Apoptosis plays a critical role in maintaining tissue homeostasis and represents a normal function to eliminate excess or dysfunctional cells. Accumulated evidence suggest that apoptosis helps to maintain cellular homeostasis during the men…

ObjectiveTo evaluate the influence of peroxisome proliferator-activated receptor-gamma (PPAR gamma) ligand (pioglitazone) on tumor necrosis factor-alpha (TNF-alpha)-induced interleukin-8 (IL-8) expression in endometriotic stromal cells (ESC…

BACKGROUND: The survival of endometriotic cells in the ectopic site has been investigated from the aspect of susceptibility of endometriotic tissues to apoptosis. In order to investigate the nature of abnormal survival of endometriotic cell…

ObjectiveTo investigate whether and how P, dienogest (synthetic progestin), and danazol affected tumor necrosis factor alpha (TNFalpha)-induced interleukin-8 (IL-8) expression in endometriotic stromal cells.DesignProspective study.SettingDe…

ObjectiveTo examine the effect of interleukin-6 (IL-6) on estrogen production and aromatase activity using a human granulosa tumor cell line (KGN cells). The involvement of the mitogen-activated protein kinase (MAPK) cascade in the inhibito…

BACKGROUND: We previously reported that the level of interleukin (IL)-6 is increased in the peritoneal fluid of women with endometriosis. This study was undertaken to assess the effects of IL-6 and soluble IL-6 receptor (sIL-6R) on in vitro…

Apoptosis plays a critical role in maintaining tissue homeostasis and represents a normal function to eliminate excess or dysfunctional cells. Accumulated evidence suggests that apoptosis helps to maintain cellular homeostasis during the me…

Endometrial stromal cells reportedly have a role in the initial invasion of endometrial tissue into the peritoneum. Hepatocyte growth factor (HGF), which is a ligand for the c-met protooncogene product (Met), stimulates proliferation and in…

ObjectiveTo evaluate the effect of lipopolysaccharide (LPS) on the expression of tumor necrosis factor alpha (TNFalpha) and interleukin-8 (IL-8) protein in endometriotic stromal cells (ESC) and their effect on the proliferation of ESC.Desig…

ObjectiveTo examine the involvement of nuclear factor-kappaB (NF-kappaB) and mitogen-activated protein kinase (MAPK) in the induction of interleukin-6 (IL-6) by tumor necrosis factor-alpha (TNF-alpha) in endometriotic stromal cells (ESC).De…

ObjectiveTo determine whether serum interleukin (IL)-6 can be measured in patients with ovarian endometriomas and whether these measurements are useful in managing this disease.DesignA controlled clinical study and an in vitro study.Setting…

Endometriosis, a common disease among women of reproductive age, is characterized by the presence of endometrial-like tissue outside the uterus. We previously reported that TNFalpha promoted proliferation of endometriotic stromal cells by i…

The purpose of this study was to evaluate the effects of laparoscopic surgery on the symptoms associated with ovarian endometrioma. We also examined serum IL-6 concentrations in patients with endometrioma. Ninety-two patients who underwent …

Endometriosis, which is common in women of reproductive age, may affect fertility. It is also clear that mechanical disruption of the pelvic anatomy may cause infertility. However, our understanding of the association between the early stag…

ObjectiveTo review the literature on the role of cytokines in the pathogenesis of endometriosis and endometriosis-associated infertility.DesignPertinent studies were identified by a computer search of MEDLINE. References of selected article…