DNA Replication News and Research

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DNA replication, the basis for biological inheritance, is a fundamental process occurring in all living organisms to copy their DNA. This process is "semiconservative" in that each strand of the original double-stranded DNA molecule serves as template for the reproduction of the complementary strand. Hence, following DNA replication, two identical DNA molecules have been produced from a single double-stranded DNA molecule. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.

Discovery of USP50 protein sheds light on DNA replication processes

A protein that is involved in determining which enzymes cut or unwind DNA during the replication process has been identified in a new study.

14 Oct 2024

New cancer drug shows encouraging results in Phase I/II trial

The antibody-drug conjugate (ADC) puxitatug samrotecan (AZD8205) demonstrated a manageable safety profile consistent with similar ADCs and initial efficacy in heavily pretreated patients with advanced or metastatic solid tumors, according to interim data shared today at the 2024 European Society for Medical Oncology (ESMO) Congress by researchers from The University of Texas MD Anderson Cancer Center.

14 Sep 2024

New molecular map offers insights into human physiology and disease

Scientists at Weill Cornell Medicine in Qatar (WCM-Q) have created an intricate molecular map of the human body and its complex physiological processes based on the analysis of thousands of molecules measured in blood, urine and saliva samples from 391 volunteers.

11 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

Early embryos are prone to chromosomal copying errors, new research shows

A new discovery by researchers at the RIKEN Center for Biosystems Dynamics (BDR) in Japan upends decades of assumptions regarding DNA replication.

28 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

Unraveling the mystery of viral evolution

All organisms -; from fungi to mammals -; have the capacity to evolve and adapt to their environments. But viruses are master shapeshifters with the ability to mutate greater than any other organism. As a result, they can evade treatments or acquire resistance to once-effective antiviral medications.

28 Aug 2024

New insights into topoisomerase I inhibition reveal potential pathways for cancer therapies

A research group at the University of Bologna has identified, for the first time, the specific location and genomic context where DNA breaks occur due to the inhibition of the topoisomerase I, a protein crucial for many biological processes in cells.

8 Aug 2024

Reduced folate intake enhances metabolic plasticity in aged mice

Folate fortification of staple foods has long been practiced in many countries.

6 Aug 2024

New studies reveal common DNA replication mechanisms in humans and yeast

Humans and baker's yeast have more in common than meets the eye, including an important mechanism that helps ensure DNA is copied correctly, reports a pair of studies published in the journals Science and Proceedings of the National Academy of Sciences.

1 Aug 2024

New discovery unveils key process in DNA repair pathway

An elegant collaboration between researchers in the UK's two core-funded Medical Research Council Research Institutes, the Laboratory of Medical Sciences (LMS) in London and the Laboratory of Molecular Biology (LMB) in Cambridge, has solved a decades-old mystery which could pave the way to better cancer treatments in the future.

31 Jul 2024

FDA-approved iron-chelating drug could provide a novel way to attack ovarian tumors

An iron-binding drug that is already approved for treatment of other diseases could provide a novel way to attack ovarian tumors, according to a new study led by Weill Cornell Medicine researchers.

29 Jul 2024

Innovative dual-drug strategy for colorectal cancer treatment

A combination of two drugs was capable of suppressing tumors in a non-conventional manner. Instead of inhibiting tumor cell division, as the most widely used medications do, the strategy consisted of hyperactivating oncogenic signaling by these cells to the point where they became stressed.

27 Jul 2024

Study identifies RFC4 as key player in nasopharyngeal carcinoma

Lichuan Wu et al., at Medical College of Guangxi University, China, presented a comprehensive study on the role of replication factor C subunit 4 (RFC4) in nasopharyngeal carcinoma (NPC), a type of epithelial cancer commonly associated with Epstein-Barr virus infection.

12 Jul 2024

Fungal endophytes: A promising frontier for breast cancer treatment

A recent study in Heliyon highlights the potential of fungal endophytes in developing novel anti-cancer agents, specifically targeting breast cancer therapy.

10 Jul 2024

Research reveals how motorized processes shape chromosome structure development

Researchers at Rice University are making strides in understanding how chromosome structures change throughout the cell's life cycle.

3 Jul 2024

ERC Advanced Grant aids study on ubiquitin in DNA repair and genome stability

Professor Helle Ulrich, Executive Director of the Institute of Molecular Biology (IMB) and professor at Johannes Gutenberg University Mainz (JGU), has been awarded an Advanced Grant from the European Research Council (ERC).

28 Jun 2024

Unveiling the role of SOS genes in E. coli survival during antibiotic treatment

When E. coli detects damage to its genetic material, it sends out an SOS signal that alters activity inside the cells.

20 Jun 2024

Enzyme implicated in telomere repair offers new avenues for cancer therapy

A new study led by University of Pittsburgh and UPMC Hillman Cancer Center researchers shows that an enzyme called PARP1 is involved in repair of telomeres, the lengths of DNA that protect the tips of chromosomes, and that impairing this process can lead to telomere shortening and genomic instability that can cause cancer.

7 May 2024