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Understanding the cooperation of transcription factors in gene expression

Every cell in our body contains the same DNA, yet liver cells are different from brain cells, and skin cells differ from muscle cells.

6 Sep 2024

Study reveals how sex hormones regulate immune system functions

Findings indicate that testosterone therapy in trans men alters immune system responses, suggesting implications for disease susceptibility and treatment.

6 Sep 2024

Scientists reveal how DNA methylation drives astrocytes to become stem cells, unlocking new potential for brain repair

Researchers have discovered that DNA methylation is crucial for reprogramming astrocytes into stem cells in the adult mouse brain, especially after ischemic injury, with potential implications for regenerative medicine.

6 Sep 2024

AI reveals new drug targets for cancers with limited treatment options

Researchers at Weill Cornell Medicine have used artificial intelligence to identify drug targets based on mapping regulatory networks in patient tumors.

5 Sep 2024

Redefining 5hmC: More than just a stepping stone in the DNA demethylation pathway

An important DNA modification is methylation, or the addition of a methyl group to the 5th carbon of cytosine. This forms 5-methylcytosine (5mC), typically associated with repression of gene expression.

From biomodal 30 Aug 2024

Novel microscopy technique reveals the mechanics of mitotic chromosome condensation

A team of scientists studying cell division developed a special light microscopy system and used it to analyze the molecular density of cellular environments. Their results provide a novel insight into mitotic chromosome condensation in living human cells.

29 Aug 2024

CDCA7 identified as key player in hemimethylation sensing

DNA methylation is a process in which a methyl group is attached to the cytosine base of the DNA molecule, and a major way that DNA is epigenetically marked.

28 Aug 2024

Zbtb18 regulates cKit expression for HSC self renewal

The study addresses the complex regulation of HSCs, highlighting p21's multifunctional nature beyond cell cycle control. Through the use of p21-tdTomato mice, researchers differentiate between p21-tdT+ and p21-tdT− HSCs. Results show that p21-tdT+ HSCs display increased self-renewal and reconstitution abilities. Zbtb18, upregulated in p21-tdT+ HSCs, is crucial for their repopulation capability. p21 interacts with ZBTB18 to suppress cKit, influencing HSC self-renewal.

28 Aug 2024

Understanding nucleosome behavior during mitosis

Individual cells divide through a process called mitosis, during which the cell's copied DNA is separated between two resulting daughter cells.

23 Aug 2024

Immune cells' two-pronged approach to maintaining acetyl-CoA reserves

Immune cells use two different routes to produce acetyl-CoA, an essential metabolite required to fight infection and cancer, reports a study led by Van Andel Institute scientists.

23 Aug 2024

Research unveils how HMGA2 regulates stress responses in stem cells

Kumamoto University researchers have made a groundbreaking discovery that sheds light on how the HMGA2 gene-;an essential transcriptional activator involved in chromatin modification-;regulates stress responses in hematopoietic stem cells (HSCs), thereby enhancing blood cell production recovery.

22 Aug 2024

Researchers reveal impact of genetic ancestry on breast cancer risk and cell diversity

Researchers map the diverse cell types present in healthy breast tissue to elucidate the role of genetic ancestry in breast cancer risk.

20 Aug 2024

Weill Cornell Medicine secures $12.4 million grant for lymphoma research

Weill Cornell Medicine has received a five-year, $12.4 million grant from the National Cancer Institute, part of the National Institutes of Health, for an extensive program of basic and translational research on the biology of diffuse large B-cell lymphoma (DLBCL), the most common form of lymphoma.

15 Aug 2024

Study reveals a paradigm shift in the understanding of T-lineage acute lymphoblastic leukemia

Researchers at Children's Hospital of Philadelphia (CHOP), St. Jude Children's Research Hospital (St. Jude) and the Children's Oncology Group (COG) today announced a significant paradigm shift in the understanding of T-lineage acute lymphoblastic leukemia (T-ALL), an aggressive and high-risk form of cancer, to one frequently driven by genetic changes in non-coding portions of our DNA.

14 Aug 2024