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Fallopian tubes offer new stem cell source

Researchers have discovered that human fallopian tube mesenchymal stem cells can differentiate into muscle, fat, cartilage, and bone cell lines, offering a new source for regenerative medicine. The study found that these cells are abundant in fertile women's reproductive years and can be easily isolated and expanded in vitro.

SourceBMC (BioMed Central)·JournalJournal of Translational Medicine·DateJun 17, 2009

JCI table of contents: Oct. 18, 2007

Researchers have discovered that hyperacidification of the TGN causes increased activity of furin, leading to tissue fibrosis in individuals with CF. Additionally, a new study on EHEC O157:H7 has identified the role of type IV pili in intestinal adherence and immune response.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 18, 2007

Renal function and heart disease, and more

Researchers found a moderate increase in risk of coronary heart disease associated with very low estimated glomerular filtration rate, according to a new prospective study and systematic review published in PLOS Medicine. The study suggests that renal function may be an important factor in the development of cardiovascular disease.

SourcePLOS·JournalPLOS Medicine·DateSep 3, 2007

Engineered blood vessels function like native tissue

Researchers at University at Buffalo developed a method to isolate functional smooth muscle cells from bone marrow, which can be used in regenerative medicine for cardiovascular applications. The engineered blood vessels function similarly to native tissue, demonstrating potential as an alternative to venous grafts.

SourceUniversity at Buffalo·JournalCardiovascular Research·DateJul 5, 2007

Fat kills cancer

Researchers have successfully engineered mesenchymal stem cells from human fat tissue into 'suicide genes' that seek out and destroy tumors. This gene therapy approach inhibits tumor growth by up to 68.5% in nude mice, showing promise as a novel cancer treatment strategy.

SourceAmerican Association for Cancer Research·JournalCancer Research·DateJul 3, 2007

Leukemic cells find safe haven in bone marrow

Research at St. Jude Children's Research Hospital shows that leukemic cells receive a protective niche from bone marrow mesenchymal cells, which release the amino acid asparagine to help them survive treatment with asparaginase. This finding suggests new strategies for enhancing anti-leukemic drugs and reducing leukemia recurrence rates.

SourceSt. Jude Children's Research Hospital·JournalJournal of Clinical Investigation·DateMar 22, 2007

Factor stimulates cartilage growth from stem cells

Researchers at Duke University Medical Center have developed a novel growth factor that significantly improves the ability of human fat-derived stem cells to be transformed into cartilage cells. The growth factor, BMP-6, stimulates the production of key biochemical markers of cartilage cell proliferation, suggesting potential for tissu...

SourceDuke University Medical Center·JournalArthritis & Rheumatism·DateApr 4, 2006

Using stem cells to repair torn tendons

Researchers have successfully induced neotendon formation in mesenchymal stem cells using the Smad8 signaling pathway. This breakthrough could lead to new cell-based therapeutic approaches for musculoskeletal injuries.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateApr 3, 2006

Forgotten by evolution?

Scientists discovered that some adult stem cells express characteristics of muscle and heart cells, suggesting they could be the 'footprints' of evolution. The researchers believe these cells may be incomplete or 'rudiments' of earlier embryonal differentiation processes.

SourceMax-Planck-Gesellschaft·JournalMolecular and Cellular Biology·DateNov 2, 2005

New stem cell source could boost bone marrow success

Researchers have identified a new source of mesenchymal progenitor cells in the human umbilical cord's Wharton's Jelly, which can be harvested to generate an abundant supply of stem cells. This discovery has the potential to greatly improve bone marrow transplantation success rates, currently ranging from 30-40%. The new stem cell sour...

There and back again

Researchers uncover a novel mechanism regulating cell shape changes during somitogenesis, a process crucial for vertebrae and muscle formation. Cdc42 plays a central role in this transition, with activity levels influencing mesenchymal cells' ability to become epithelial cells.

SourceRIKEN Center for Developmental Biology·JournalDevelopmental Cell·DateSep 13, 2004

Crowding stem cells' personal space directs their future

Researchers at Johns Hopkins Medicine found that mesenchymal stem cell shape is a critical factor in determining which type of cell they will become. By using micropatterning technology, the team showed that spherical stem cells efficiently transform into fat cell precursors, while those allowed to stretch and flatten move closer to be...

SourceJohns Hopkins Medicine·JournalDevelopmental Cell·DateApr 16, 2004

Transplanted human stem cells develop into broad range of tissues, persist over a year in research at The Children's Hospital of Philadelphia

Researchers induced human adult stem cells to develop into various tissues, including bone, cartilage, and muscle, when transplanted into fetal sheep. The transplanted cells persisted for over a year without rejection, suggesting potential for tissue repair and regeneration.

SourceChildren's Hospital of Philadelphia·JournalNature Medicine·DateOct 30, 2000