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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

Tissue engineering: challenges and opportunities.

TL;DR: The article outlines the challenges to the commercialization of tissue-engineered products, and highlights the ongoing efforts by the American Society for Testing and Materials (ASTM) in developing standards for tissue-Engineered medical products.

Hepatocyte transplantation

李亚明, +1 more
TL;DR: 独立的肝细胞移植的�“力远未开发,�’�了尸�”外,其它可供�l椁, 个例中应用过.
Journal ArticleDOI

Homeostatic regulation of germinal stem cell proliferation by the GDNF/FSH pathway

TL;DR: In mammalian testes, GSC proliferation and population size are regulated homeostatically by the GDNF/FSH pathway, and it is found that follicle-stimulating hormone (FSH) stimulation via homeostatic control was one of the major regulators of GDNF concentration.
Journal ArticleDOI

Isolation and characterization of size-sieved stem cells from human bone marrow

TL;DR: A culture device is used to sieve out a homogeneous population of cells (termed size‐sieved [SS] cells) from bone marrow aspirates that had the capacity for self‐renewal and the multilineage potential to form bone, fat, and cartilage, and satisfy the characteristics of MSCs.
Journal ArticleDOI

Flow-cytometric separation and enrichment of hepatic progenitor cells in the developing mouse liver

TL;DR: It is demonstrated that hepatic progenitor cells are enriched by FACS and suggested approaches to supplanting organ allografting and improving artificial‐organ hepatic support are suggested.
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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