BACKGROUND/AIMS The treatment of peripheral nerve lesions still represents a clinical challenge. Several approaches such as novel biomaterials for nerve guides, addition of growth factors or cellular supplements moved in the focus of research. Especially the application of autologous stem cells is highly promising for future applications. Human sweat gland derived stem cells (hSGSCs) represent ...

BACKGROUND IVF occasionally produces aneuploid zygotes with one or three pronuclei (PN). Routinely, these zygotes are discarded. The aim of this work was to establish human embryonic stem cell (hESC) lines from blastocysts resulting from abnormal fertilization. METHODS Abnormally fertilized zygotes were cultured to the blastocyst stage and, following zona pellucida digestion, zona-free blasto...

Granulomatous inflammations in schistosomiasis mansoni are the result of T-cell-mediated reactions to soluble egg antigens (SEA) secreted by parasite ova. To study TDH effector cell function, a granuloma T-cell line was established from collagenase-digested liver granulomas of acutely infected CBA/J mice. Dispersed nonadherent granuloma cells were cultured with feeder layer cells and SEA or wit...

Six continuous cell lines have been established from choroidal and ciliary body melanomas. These lines have been maintained in culture for at least 100 in vitro population doublings for periods over 1 year. They were established initially using a human diploid fibroblast strain MRC-5 as a feeder layer. Cells were grown in Ham's F-12 medium containing fetal bovine and horse sera and supplemented...

The primary hepatocytes culture is still one of the main challenges in toxicology studies in the drug discovery process, development of in vitro models to study liver function, and cell-based therapies. Isolated hepatocytes display a rapid decline in viability and liver-specific functions including albumin production, conversion of ammonia to urea, and activity of the drug metabolizing enzymes....

A culture system is described in which 1000 human peripheral blood lymphocytes diluted in 2.5 x 10(5) mitomycin-treated autologous cells respond to phytohemagglutinin (PHA). Proliferation data, including 3HTdR uptake, cell survival counts, and mitotic indices, indicate that this inoculum expands from 1000 to 40,000 cells by day 7, suggesting five or six sequential cell divisions. Chromosome mar...

Mouse embryonic stem (ES) cells are continuous cell lines derived directly from the fetal founder tissue of the pre-implantation embryo and can be expanded in vitro and give rise to cells from ectodermal, mesodermal and endodermal layers. Mouse ES cells can be maintained and their numbers expanded by culture on feeder layer cells with LIF present in the culture medium. This study shows that cha...

Six continuous cell lines have been established from choroidal and ciliary body melanomas. These lines have been maintained in culture for at least 100 in vitro population doublings for periods over 1 year. They were established initially using a human diploid fibroblast strain MRC-5 as a feeder layer. Cells were grown in Ham's F-12 medium containing fetal bovine and horse sera and supplemented...

We have examined the effect of retinoic acid (RA) on differentiation of bone marrow-derived CD15(+) , Oct4(+) and CXCR4(+) cells into male germ cells. Bone marrow stem cells (BMSCs) were isolated from the femur of 3-4-week-old male C57BL/6 mice. Magnetic-activated cell sorting (MACS) system was used to sort CD15(+) , Oct4(+) and CXCR4(+) cells. RT-PCR was used to follow the expression of plurip...