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Journal ArticleDOI

Bone marrow as a potential source of hepatic oval cells.

TLDR
A stem cell associated with the bone marrow has epithelial cell lineage capability and a proportion of the regenerated hepatic cells were shown to be donor-derived.
Abstract
Bone marrow stem cells develop into hematopoietic and mesenchymal lineages but have not been known to participate in production of hepatocytes, biliary cells, or oval cells during liver regeneration. Cross-sex or cross-strain bone marrow and whole liver transplantation were used to trace the origin of the repopulating liver cells. Transplanted rats were treated with 2-acetylaminofluorene, to block hepatocyte proliferation, and then hepatic injury, to induce oval cell proliferation. Markers for Y chromosome, dipeptidyl peptidase IV enzyme, and L21-6 antigen were used to identify liver cells of bone marrow origin. From these cells, a proportion of the regenerated hepatic cells were shown to be donor-derived. Thus, a stem cell associated with the bone marrow has epithelial cell lineage capability.

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Journal ArticleDOI

Bone marrow cells engraft within the epidermis and proliferate in vivo with no evidence of cell fusion

TL;DR: It is established that bone marrow‐derived epidermal cells are proliferative and, moreover, it is demonstrated for the first time that BMDC can localize to a known stem cell niche: the CD34‐positive bulge region of mouse hair follicles.
Journal ArticleDOI

Role of intestinal subepithelial myofibroblasts in inflammation and regenerative response in the gut.

TL;DR: Two major topics were documented: interaction between interleukin (IL)-17-secreting CD4+ cells (Th-17 cells) and about role of BM-derived stem cells in mucosal regenerative response via differentiation to ISEMF.
Journal ArticleDOI

Liver stem/progenitor cells: their characteristics and regulatory mechanisms

TL;DR: In certain types of liver injury models, liver stem/progenitor-like cells, known as oval cells in rodents, proliferate around the portal vein, while the roles of such cells in liver regeneration remain a matter of debate.
Journal ArticleDOI

Fetal cells in mother rats contribute to the remodeling of liver and kidney after injury.

TL;DR: In this article, an animal model in which EGFP positive cells were taken as fetal-origin cells was designed to detect the fetal microchimerism in various maternal organs, and the results indicate that fetal cells are engrafted to maternal hematopoietic system without apparent injury and contribute to the repairing process of maternal liver and kidney.
Journal ArticleDOI

Adult bone marrow–derived stem cells for organ regeneration and repair

TL;DR: The bone marrow is an ideal source of stem cells because it is easily accessible and harbors two types of stem cell populations, which give rise to all blood cell types and have been shown to exhibit plasticity.
References
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Journal ArticleDOI

Muscle Regeneration by Bone Marrow-Derived Myogenic Progenitors

TL;DR: Transplantation of genetically marked bone marrow into immunodeficient mice revealed that marrow-derived cells migrate into areas of induced muscle degeneration, undergo myogenic differentiation, and participate in the regeneration of the damaged fibers.
Journal Article

In vivo differentiation of rat liver oval cells into hepatocytes.

TL;DR: The data indicate that oval cells can differentiate to hepatocytes and may have an important physiological function as a source of major serum proteins when hepatocytes are unable to synthesize these proteins.
Journal ArticleDOI

Presence of hematopoietic stem cells in the adult liver

TL;DR: The data obtained from the mouse study strongly suggest that hematopoietic stem cells residing in the donor liver are responsible for mixed chimerism and maintenance of tolerance after liver transplantation.
Journal Article

Expression of stem cell factor and its receptor, c-kit, during liver regeneration from putative stem cells in adult rat.

TL;DR: The SCF/c-kit system may, possibly in combination with other growth factor/receptor systems, be involved in the early activation of the hepatic stem cells as well as in the expansion and differentiation of oval cells.
Journal ArticleDOI

Variable chimerism, graft-versus-host disease, and tolerance after different kinds of cell and whole organ transplantation from Lewis to brown Norway rats.

TL;DR: Both the GVHD propensity and tolerogenicity in these experiments were closely associated with recipient tissue chimerism 30 and 100 days after the experiments began, and these observations provide guidelines that should be considered in devising leukocyte augmentation protocols for human whole organ recipients.
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