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      Endometrial stem/progenitor cells: the first 10 years.

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          Abstract

          The existence of stem/progenitor cells in the endometrium was postulated many years ago, but the first functional evidence was only published in 2004. The identification of rare epithelial and stromal populations of clonogenic cells in human endometrium has opened an active area of research on endometrial stem/progenitor cells in the subsequent 10 years.

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          Most cited references177

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          Self-renewing osteoprogenitors in bone marrow sinusoids can organize a hematopoietic microenvironment.

          The identity of cells that establish the hematopoietic microenvironment (HME) in human bone marrow (BM), and of clonogenic skeletal progenitors found in BM stroma, has long remained elusive. We show that MCAM/CD146-expressing, subendothelial cells in human BM stroma are capable of transferring, upon transplantation, the HME to heterotopic sites, coincident with the establishment of identical subendothelial cells within a miniature bone organ. Establishment of subendothelial stromal cells in developing heterotopic BM in vivo occurs via specific, dynamic interactions with developing sinusoids. Subendothelial stromal cells residing on the sinusoidal wall are major producers of Angiopoietin-1 (a pivotal molecule of the HSC "niche" involved in vascular remodeling). Our data reveal the functional relationships between establishment of the HME in vivo, establishment of skeletal progenitors in BM sinusoids, and angiogenesis.
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            Concise review: the surface markers and identity of human mesenchymal stem cells.

            The concept of mesenchymal stem cells (MSCs) is becoming increasingly obscure due to the recent findings of heterogeneous populations with different levels of stemness within MSCs isolated by traditional plastic adherence. MSCs were originally identified in bone marrow and later detected in many other tissues. Currently, no cloning based on single surface marker is capable of isolating cells that satisfy the minimal criteria of MSCs from various tissue environments. Markers that associate with the stemness of MSCs await to be elucidated. A number of candidate MSC surface markers or markers possibly related to their stemness have been brought forward so far, including Stro-1, SSEA-4, CD271, and CD146, yet there is a large difference in their expression in various sources of MSCs. The exact identity of MSCs in vivo is not yet clear, although reports have suggested they may have a fibroblastic or pericytic origin. In this review, we revisit the reported expression of surface molecules in MSCs from various sources, aiming to assess their potential as MSC markers and define the critical panel for future investigation. We also discuss the relationship of MSCs to fibroblasts and pericytes in an attempt to shed light on their identity in vivo. © 2014 AlphaMed Press.
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              Multi-organ, multi-lineage engraftment by a single bone marrow-derived stem cell.

              Purification of rare hematopoietic stem cell(s) (HSC) to homogeneity is required to study their self-renewal, differentiation, phenotype, and homing. Long-term repopulation (LTR) of irradiated hosts and serial transplantation to secondary hosts represent the gold standard for demonstrating self-renewal and differentiation, the defining properties of HSC. We show that rare cells that home to bone marrow can LTR primary and secondary recipients. During the homing, CD34 and SCA-1 expression increases uniquely on cells that home to marrow. These adult bone marrow cells have tremendous differentiative capacity as they can also differentiate into epithelial cells of the liver, lung, GI tract, and skin. This finding may contribute to clinical treatment of genetic disease or tissue repair.
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                Author and article information

                Journal
                Hum Reprod Update
                Human reproduction update
                Oxford University Press (OUP)
                1460-2369
                1355-4786
                November 11 2015
                : 22
                : 2
                Affiliations
                [1 ] The Ritchie Centre, Hudson Institute of Medical Research, 27-31 Wright Street, Clayton 3168, Victoria, Australia Department of Obstetrics and Gynaecology, Monash University, Monash Medical Centre, 246 Clayton Road, Clayton 3168, Victoria, Australia caroline.gargett@hudson.org.au.
                [2 ] The Ritchie Centre, Hudson Institute of Medical Research, 27-31 Wright Street, Clayton 3168, Victoria, Australia.
                [3 ] The Ritchie Centre, Hudson Institute of Medical Research, 27-31 Wright Street, Clayton 3168, Victoria, Australia Department of Obstetrics and Gynaecology, Monash University, Monash Medical Centre, 246 Clayton Road, Clayton 3168, Victoria, Australia.
                Article
                dmv051
                10.1093/humupd/dmv051
                4755439
                26552890
                063dd42d-4ab9-4744-9780-a77f46ad4274
                © The Author 2015. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology.
                History

                adenomyosis,endometrial stem cells,endometriosis,endometrium,epithelial progenitor cells,immunomodulation,menstrual blood,mesenchymal stem cells,regenerative medicine,sushi domain containing-2

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