Researchers have discovered a cellular factor called SAMHD1 that inhibits HIV infection in myeloid cells, part of the body's immune system. This discovery may help explain why some individuals can control HIV better than others and could provide a basis for new therapies to block HIV replication.
SourceCase Western Reserve University·JournalNature·DateJun 29, 2011
Researchers at UCSD identified a tumor inflammation trigger common to most cancers, which can be blocked by inhibiting a single protein. This inhibition reduces primary tumor growth and halts tumor progression and metastasis in animal studies.
SourceUniversity of California - San Diego·JournalCancer Cell·DateJun 13, 2011
Research in mice reveals a link between pregnancy and tumor dissemination, with decreased NK cell activity and myeloid-derived suppressor cells contributing to metastasis. The study suggests that these immune cells may represent a shared mechanism of immune suppression during pregnancy and tumor growth.
SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 6, 2011
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Researchers discovered a novel molecular pathway used by myeloid cells to regulate blood vessel patterning in the developing retina. The pathway, involving the Wnt protein signaling network, has potential as a therapeutic option for fighting retinal diseases and cancers.
SourceCincinnati Children's Hospital Medical Center·JournalNature·DateMay 29, 2011
Researchers mapped epigenetic changes during blood cell differentiation, revealing complex patterns and potential applications for stem cell therapies. The study's findings could guide understanding of diseases like leukemia and lymphoma, paving the way for new treatments.
Researchers found that tumor-secreted exosomes increase myeloid-derived suppressor cells, inhibiting immune activation and accelerating tumor metastasis. The study identified the role of MyD88 in this process, suggesting potential strategies to develop immune-stimulating tumor vaccines.
SourceAmerican Journal of Pathology·JournalAmerican Journal Of Pathology·DateApr 30, 2010
STDs like genital herpes and chlamydia increase the risk of becoming infected with HIV due to inflammation in Langerhans cells. Anti-inflammatory therapies might help prevent HIV transmission by modulating the immune response.
SourceJCI Journals·JournalJournal of Clinical Investigation·DateSep 5, 2008
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Researchers at the University of Pennsylvania School of Medicine have found that juvenile cells on their way to becoming mature immune cells can develop into either T cells or other blood-cell types. This challenges the currently accepted model of T-cell development, which suggests that these cells are committed to the T-cell path from...
SourceUniversity of Pennsylvania School of Medicine·JournalNature·DateApr 9, 2008
Researchers found that the N-Myc gene triggers cancer when paired with growth-promoting protein IL-3 and causes cell suicide without it. The study also shows that immortalized cells overexpressing N-Myc become more aggressive and produce fewer growth-inhibiting proteins.
SourceSt. Jude Children's Research Hospital·JournalCancer Research·DateNov 26, 2007
Researchers found that modified bone marrow cells reduced MS symptoms, nerve damage, and increased tissue debris clearance when injected into mice with EAE at disease peak. The study opens up further research avenues for human multiple sclerosis treatment.