How phosphorylated histone H2AX, known as gamma-H2AX, functions in the cellular response to DNA double-strand breaks is the subject of intensive investigation. Recent research in yeast and mammalian cells shows that gamma-H2AX facilitates post-replicational DNA repair by recruiting cohesin, a protein complex that holds sister chromatids together.
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http://dx.doi.org/10.1016/j.cub.2005.01.029 | DOI Listing |
Melanoma Manag
December 2024
Supportive Care Dep, Institut Curie, Paris, France.
Metastatic uveal melanoma (UM) patients often initially present with limited symptoms despite a poor prognosis, complicating communication with patients and caregivers. Early Together (NCT04728113) is a randomized Phase III trial that integrates early palliative care through systematic joint visits involving the palliative care team and the medical oncologist, compared with standard oncological care, in 162 metastatic UM patients beginning systemic treatment. This collaboration aims to enhance patient functioning, improve quality of life and facilitate coping mechanisms.
View Article and Find Full Text PDFCell Mol Life Sci
January 2025
Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, 150 Haping Road, Harbin, 150081, China.
Non-small cell lung cancer (NSCLC) has emerged as one of the most prevalent malignancies worldwide. N6-methyladenosine (mA) methylation, a pervasive epigenetic modification in long noncoding RNAs (lncRNAs), plays a crucial role in NSCLC progression. Here, we report that mA modification and the expression of the lncRNA stem cell inhibitory RNA transcript (SCIRT) was significantly upregulated in NSCLC tissues and cells.
View Article and Find Full Text PDFMicrobiol Mol Biol Rev
January 2025
Department of Microbiology-Immunology, Northwestern University, Chicago, Illinois, USA.
SUMMARYHuman papillomaviruses (HPVs) are small DNA viruses that are responsible for significant disease burdens worldwide, including cancers of the cervix, anogenital tract, and oropharynx. HPVs infect stratified epithelia at a variety of body locations and link their productive life cycles to the differentiation of the host cell. These viruses have evolved sophisticated mechanisms to exploit cellular pathways, such as DNA damage repair (DDR), to regulate their life cycles.
View Article and Find Full Text PDFIntegration of DNA replication with DNA repair, cell cycle progression, and other biological processes is crucial for preserving genome stability and fundamentally important for all life. Ataxia-telangiectasia mutated and RAD3-related (ATR) and its partner ATR-interacting protein (ATRIP) function as a critical proximal sensor and transducer of the DNA Damage Response (DDR). Several ATR substrates, including p53 and CHK1, are crucial for coordination of cell cycle phase transitions, transcription, and DNA repair when cells sustain DNA damage.
View Article and Find Full Text PDFIn eukaryotes, mismatch repair begins with M ut S h omolog (MSH) complexes, which scan newly replicated DNA for mismatches. Upon mismatch detection, MSH complexes recruit the PCNA- stimulated endonuclease Mlh1-Pms1/PMS2 (yeast/human), which nicks the DNA to allow downstream proteins to remove the mismatch. Past work has shown that although Mlh1-Pms1 is an ATPase and this activity is important , ATP is not required to nick DNA.
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