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uterus endometrial stem cell

Nicola Pluchino, Hugh S Taylor
Adult stem cells have a major role in endometrial physiology, remodeling, and repair, but they also have a critical role in the development and progression of endometriosis. Bone marrow-derived stem cells (BMDSCs) engraft eutopic endometrium and endometriotic lesions, showing stromal and epithelial fate. Nevertheless, circulating BMDSCs are in limited supply, and the presence of endometriosis depletes stem cells from the blood circulation, preventing their homing in the uterus. Furthermore, stem cells migrate from endometriotic lesion into the uterus, leading to a dysfunctional endometrium...
December 2016: Reproductive Sciences
Irene Moridi, Ramanaiah Mamillapalli, Emine Cosar, Gulcin Sahin Ersoy, Hugh S Taylor
Endometriosis is an inflammatory gynecological disorder caused by the growth of endometrial tissue outside the uterus. Endometriosis produces chemokines, including CXCL12, that attract bone marrow cells to the lesions. In this study, we describe the expression, localization, and chemotactic activity of CXCL12 in endometriotic lesions. Biopsies were collected both from women with endometriosis undergoing laparoscopy and control endometrium from women without endometriosis. Expression of CXCl12 and CXCR4 messenger RNA was increased approximately 4- and 6-fold, respectively, in endometriosis compared to eutopic endometrium...
October 11, 2016: Reproductive Sciences
Yeonwoo Park, Mauris C Nnamani, Jamie Maziarz, Günter P Wagner
Studies in human and mouse have shown that decidual stromal cells (DSC), which develop in the innermost lining of uterus, mediate placentation by regulating maternal immune response against the fetus and the extent of fetal invasion. Investigating when and how DSC evolved is thus a key step to reconstructing the evolutionary history of mammalian pregnancy. We present molecular evidence placing the origin of DSC in the stem lineage of eutherians (extant placental mammals). The transcription factor forkhead box O1 (FOXO1) is a part of the core regulatory transcription factor complex (CoRC) that establishes the cell type identity of DSC...
December 2016: Molecular Biology and Evolution
Jianmei Wang, Baohui Ju, Caijun Pan, Yan Gu, Yu Zhang, Li Sun, Bumei Zhang, Yujuan Zhang
AIMS: To investigate the therapeutic effects of bone marrow-derived mesenchymal stem cells (BMSCs) transplantation on intrauterine adhesions (IUA). METHODS: BMSCs were isolated and labeled by green fluorescence protein. IUA model was established by mechanical injury. 48 rats were randomly divided into control, IUA model, BMSCs vein injection and BMSCs intrauterine injection groups (n=12 in each group). The third generation of BMSCs was injected through tail vein or intrauterine...
2016: Cellular Physiology and Biochemistry
Hoda Bahrami, Reza Roozafzoon, Zinat Ghanbari, Neda Jegargooshe, Parvaneh Jafari, Mohammad Nazari, Saeed Heidari-Keshel
BACKGROUND: As a definition, Endometriosis is a commonly encountered gynecological disease; as endometrial glandular and stromal cells existing in the outside of the uterus. In spite of several studies on endometriosis, its molecular mechanism and pathogenesis nevertheless have been not completely illuminated. Role of ELAM-1 gene in mediating the adhesion of tumor cells to endothelial cells by binding to ELAM-1 ligands expressed by eosinophils, neutrophils, monocytes, natural killer cell effectors T-lymphocyte cell, and cancer (progenitor/stem) cells is well studied...
July 19, 2016: Minerva Ginecologica
Reshef Tal, Ying Liu, Nicola Pluchino, Shafiq Shaikh, Ramanaiah Mamillapalli, Hugh Taylor
Bone marrow (BM)-derived cells (BMDCs) contribute to endometrial regeneration. Our objective was to develop a non-gonadotoxic mouse bone marrow transplant (BMT) model using 5-fluorouracil (5-FU) for investigating BMDCs trafficking in reproduction. Female C57BL/6J mice received either single (CTX-1) or paired (CTX-2) 5-FU (150mg/Kg) dose, or single (CTX-1+SCF) or paired-dose (CTX-2+SCF) 5-FU with stem cell factor (SCF). Control mice received BMT only or saline. BM cells (20×10(6)) from transgenic green-fluorescent protein (GFP) mice were injected intravenously...
July 18, 2016: Endocrinology
Stuart J Emmerson, Caroline E Gargett
Pelvic organ prolapse (POP) occurs when the pelvic organs (bladder, bowel or uterus) herniate into the vagina, causing incontinence, voiding, bowel and sexual dysfunction, negatively impacting upon a woman's quality of life. POP affects 25% of all women and results from childbirth injury. For 19% of all women, surgical reconstructive surgery is required for treatment, often augmented with surgical mesh. The surgical treatment fails in up to 30% of cases or results in adverse effects, such as pain and mesh erosion into the bladder, bowel or vagina...
May 26, 2016: World Journal of Stem Cells
Saeedeh Darzi, Jerome A Werkmeister, James A Deane, Caroline E Gargett
UNLABELLED: SummaryHuman endometrium is a highly regenerative tissue, undergoing more than 400 cycles of proliferation, differentiation, and shedding during a woman's reproductive life. Adult stem cells, including mesenchymal stem/stromal cells (MSCs), are likely responsible for the immense cellular turnover in human endometrium. The unique properties of MSCs, including high proliferative ability, self-renewal, differentiation to mesodermal lineages, secretion of angiogenic factors, and many other growth-promoting factors make them useful candidates for cellular therapy and tissue engineering...
September 2016: Stem Cells Translational Medicine
Márcia M Carneiro
Uterine leiomyomas, also known as uterine fibroids or uterine myomas, are the most common benign gynecologic tumors found in women of reproductive age. In spite of the numerous published studies evaluating the hormonal dependency, epidemiology, molecular biology, pathology, and genetics of leiomyomas, many questions remain unanswered. The remodeling of the uterus in response to hormonal stimuli and its return to a basal state may be related to adult stem/progenitor cells residing in the endometrial and myometrial layers...
March 1, 2016: JBRA Assisted Reproduction
Matthias W Laschke, Michael D Menger
Endometriosis is a frequent gynecologic disease with a complex, multifactorial cause. It is characterized by the cyclic estrogen-driven proliferation and bleeding of endometriotic lesions (ie, ectopic endometrial glands and stroma) outside the uterus. These lesions induce a chronic activation of the innate immune system within the peritoneal cavity that is associated with the release of various inflammatory cytokines and angiogenic growth factors into the peritoneal fluid. This stimulates angiogenesis and the further spread of the lesions and triggers the typical pain that is symptomatic of the disease...
July 2016: American Journal of Obstetrics and Gynecology
Vladislav S Baranov, Tatyana E Ivaschenko, Maria I Yarmolinskaya
Endometriosis (EM) and uterine leiomyoma (UL) are two most frequent benign tumors of monoclonal origin affecting about 30% of all women in their reproductive age. Modern molecular technologies have made a tremendous impact in understanding both disorders. Here is the first comparative analysis of molecular mechanisms underlying development of EM and UL as it looks from the platform of systems genetics. Similarities and differences of EM and UL at their incipient stages are enlightened with special emphasis on their gene networks, gene expression, and epigenetic regulation, of pathologic development...
2016: Systems Biology in Reproductive Medicine
Chia-Yi Hsu, Tsung-Hua Hsieh, Cheng-Fang Tsai, Hung-Sheng Chen, Peir-In Liang, Ya-Ling Hsu, Eing-Mei Tsai
Endometriosis is the hormone-dependent product of endometrial tissue found outside the uterus. Recently, micro-RNAs (miRNAs) were shown to play a role in endometriotic lesion development. However, the mechanism of steroid hormones responsible for miRNA remains obscure. In the present study, we assayed for the effects of synthetic steroid hormones (danazol, progesterone, and medroxyprogesterone acetate [MPA]) on miRNAs in endometriosis. We used a global miRNA expression profile microarray to evaluate miRNA expression in endometrial mesenchymal stem cells (EN-MSCs) of ovarian endometrioma following treatment with 1 μM danazol, progesterone, or MPA...
March 2016: Biology of Reproduction
Nicolas A Fraunhoffer, Analía Meilerman Abuelafia, Inés Stella, Silvia Galliano, Marcela Barrios, Alfredo D Vitullo
BACKGROUND: Endometriosis is a gynaecological disorder that affects 6-10 % of female population. It is characterized by the presence of endometrial tissue outside the uterus, most often in the pelvic peritoneum or ovaries. Recent studies have indicated that mesenchymal endometrial stem cells might get involved in endometriosis progression. Although germ line stem cells have been proved to exist in the ovary, their involvement in ovarian endometriosis has not been investigated. In this preliminary report we aimed to identify germinal stem cell markers in ovarian endometriosis...
2015: Journal of Ovarian Research
Demetra Hufnagel, Fei Li, Emine Cosar, Graciela Krikun, Hugh S Taylor
Human endometrium is a dynamic organ that normally undergoes repetitive cyclic regeneration. To enable this rapid regeneration, it is not surprising that the endometrium contains a reservoir of progenitor stem cells. However, this pool of cells that allows the growth of the endometrium also allows for unrestrained growth that can reach beyond the endometrium. In this review, we will address the role of stem cells in endometriosis. Recent characterization of stem cell populations within human endometrium has opened the possibility of understanding their physiologic as well as their pathologic roles...
September 2015: Seminars in Reproductive Medicine
Irene Cervelló, Xavier Santamaría, Kaoru Miyazaki, Tetsuo Maruyama, Carlos Simón
Regenerative medicine offers the potential for replacement or repair of different types of cells within damaged tissues or the tissues themselves, typically through cell therapy or tissue engineering. Stem cells are critical to these approaches; indeed, the involvement of bone marrow in the differentiation of stem cells to nonhematopoietic cells is well demonstrated. Further, the contribution of bone marrow-derived stem cells in promoting neoangiogenesis has been demonstrated not only in animal models, but also in human clinical trials with an excellent safety profile...
September 2015: Seminars in Reproductive Medicine
Raghavendra Baregundi Subbarao, Imran Ullah, Eun-Jin Kim, Si-Jung Jang, Won-Jae Lee, Ryoung Hoon Jeon, Dawon Kang, Sung-Lim Lee, Bong-Wook Park, Gyu-Jin Rho
Endometrial stromal cells (EMSCs) obtained from porcine uterus (n = 6) were positive for mesenchymal stem cell markers (CD29, CD44 and CD90), and negative for epithelial marker CD9 and hematopoietic markers CD34, CD45 analyzed by flow cytometry. Further the cells were positive for expression of mesenchymal markers, CD105, CD140b, and CD144 by PCR. Pluripotent markers OCT4, SOX2, and NANOG were positively expressed in EMSCs analyzed by Western blotting and PCR. Further, differentiation into adipocytes and osteocytes was confirmed by cytochemical staining and lineage specific gene expression by quantitative realtime-PCR...
2015: International Journal of Molecular Sciences
Pranesh Gunjal, Deepa Bhartiya, Siddhanath Metkari, Dhananjay Manjramkar, Hiren Patel
BACKGROUND: Endometrium undergoes dramatic growth, breakdown and regeneration throughout reproductive period in mammals. Stem cells have been implicated in the process however their origin, nature, anatomical localization and characterization still remain obscure. Classical concept of presence of stem cells in the basal layer of endometrium was recently challenged when side population and label retaining cells were found to be distributed throughout endometrium. We have earlier reported very small embryonic-like stem cells (VSELs) in adult mammalian ovary and testis as a small population of cells with nuclear OCT-4 along with progenitors (spermatogonial stem cells and ovarian germ stem cells) with cytoplasmic OCT-4...
2015: Journal of Ovarian Research
Jocelyn M Wessels, Nicholas A Leyland, Sanjay K Agarwal, Warren G Foster
STUDY QUESTION: Are brain-derived neurotrophic factor (BDNF) and its receptors, NTRK2, NGFR and SORT1, regulated by ovarian steroids in the uterus? SUMMARY ANSWER: BDNF and its low affinity receptor, nerve growth factor receptor (NGFR), are regulated by estradiol in the uterus. WHAT IS KNOWN ALREADY: Recent studies have revealed a central role for neurotrophins in placental development, endometrial stem cell neurogenesis, endometrial carcinoma and endometriosis...
April 2015: Human Reproduction
Farnaz Ghobadi, Davood Mehrabani, Golnoush Mehrabani
Recent findings in stem cell biology have opened a new window in regenerative medicine. The endometrium possesses mesenchymal stem cells (MSCs) called endometrial stem cells (EnSCs) having specific regenerative properties linked to adult stem cells. They contribute in tissue remodeling and engineering and were shown to have immuno-modulating effects. Many clinical trials were undertaken to ascertain the therapeutic potential of EnSCS. In this mini review, we showed that EnSCs are readily available sources of adult stem cells in the uterus that can be highlighted for their renewable multipotent and differentiation properties...
January 2015: World Journal of Plastic Surgery
Masanori Ono, Serdar E Bulun, Tetsuo Maruyama
Tissue-specific (or somatic) stem cells constitute a subset of cells residing in normal adult tissues. By undergoing asymmetric division, they retain their ability to self-renew while producing daughter cells that go on to differentiate and play a role in tissue regeneration and repair. The human uterus consists primarily of endometrium and myometrium (the smooth muscle layer) that rapidly enlarges through its tremendous regenerative and remodeling capacity to accommodate the developing fetus. Such uterine enlargement and remodeling can take place repeatedly and cyclically over the course of a woman's reproductive life...
December 2014: Biology of Reproduction
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