Explore

National Cancer Institute Initiative Confirms High Fidelity of Next-Generation Cancer Models

National Cancer Institute Initiative Confirms High Fidelity of Next-Generation Cancer Models

The National Cancer Institute (NCI) Human Cancer Models Initiative (HCMI) has confirmed that its next-generation patient-derived cancer models accurately reflect the biology of patient tumors. This initiative, established to improve the accuracy of laboratory models, has generated 665 models spanning 25 cancer types, including rare diseases. Each model is linked to comprehensive genomic, transcriptomic, and clinical data and is openly available to researchers globally. A recent study, involving a collaboration of research partners worldwide, analyzed 421 matched tumor-model pairs. The results showed 97.8% genetic concordance, 95% epigenomic concordance, and 92% transcriptional similarity between the models and their originating tumors. This high level of agreement across genetic, epigenomic, and transcriptional dimensions provides strong evidence that these models are not only genetically similar but also biologically representative of how tumors function. ATCC, the authorized provider of the collection, r...

NYU Abu Dhabi Researchers Uncover Diverse Cellular Responses to Cancer-Causing Genes

NYU Abu Dhabi Researchers Uncover Diverse Cellular Responses to Cancer-Causing Genes

Scientists at NYU Abu Dhabi have discovered that a single cancer-causing gene can elicit varied responses in cells, with some responses preventing tumors while others may contribute to their development. The study, published in EMBO Reports, found that the gene UHRF1 can trigger multiple forms of cellular senescence. Cellular senescence is a natural defense mechanism where damaged cells stop dividing to prevent cancer. Using a zebrafish model of liver cancer, researchers observed that some precancerous cells become terminally senescent, meaning they cannot form tumors, while others can regain the ability to divide and potentially lead to cancer. The team also tested a common senolytic, a drug designed to eliminate senescent cells, and found it was effective against only certain types of precancerous cells, highlighting the complexity of cellular responses.

Tempus AI Seeks Computational Biologist for Pharma R in Boston

Tempus AI Seeks Computational Biologist for Pharma R in Boston

Tempus AI Seeks Computational Biologist for Pharma R in Boston

10x Genomics Launches Sentira Platform to Accelerate Spatial Biology Data Analysis

10x Genomics Launches Sentira Platform to Accelerate Spatial Biology Data Analysis

10x Genomics Launches Sentira Platform to Accelerate Spatial Biology Data Analysis

Physicist László Barabási Advocates for Increased Research into Food's 'Nutritional Dark Matter'

Physicist László Barabási Advocates for Increased Research into Food's 'Nutritional Dark Matter'

Physicist and network scientist László Barabási is calling for a significant shift in scientific research priorities, urging greater investment in understanding the complex chemical composition of food beyond traditional nutritional components. Barabási highlights that while approximately 150-200 nutritional components (like vitamins, sugars, and fats) are well-studied for their energy and survival roles, his lab has documented around 135,000 other molecules in food. These 'nutritional dark matter' molecules, such as polyphenols, are not metabolized for energy but play crucial roles in modulating cellular activity, acting similarly to drugs by binding to proteins and DNA to activate or deactivate processes. He argues that current research funding is disproportionately allocated to genomics, which accounts for only 10-20% of disease causation, while diet, responsible for 40-50%, receives minimal attention. Barabási emphasizes that understanding these unquantified molecules is essential for developing truly ...

AI Scientist Autonomously Generates and Validates New Biological Discoveries

AI Scientist Autonomously Generates and Validates New Biological Discoveries

Researchers from Chalmers University of Technology in Sweden have developed an 'AI scientist' capable of autonomously generating scientific hypotheses, designing experiments, and interpreting results. This closed-loop AI laboratory integrates large language models, automated reasoning, and laboratory automation. The system was tested using the common baker's yeast, Saccharomyces cerevisiae, as its subject. The AI was fed scientific knowledge about yeast genomes, metabolism, and existing research. From this data, it identified promising biological questions, proposed experiments to answer them, and evaluated the outcomes to refine its hypotheses for subsequent experiments. This development demonstrates the AI's ability to not merely assist in decision-making but to actively generate new scientific knowledge through experimentation.

UNC Charlotte Professor Co-Authors Landmark Bat Genome Study Revealing 65-Million-Year Origins

UNC Charlotte Professor Co-Authors Landmark Bat Genome Study Revealing 65-Million-Year Origins

Laurel Yohe, Ph.D., an assistant professor of bioinformatics at The University of North Carolina at Charlotte, is a co-author of a significant bat genome study published in Nature. This study, the largest combined bat genome and fossil analysis ever conducted, was led by the international Bat1K consortium, involving 137 researchers from 64 countries. The research integrated 103 bat genomes, representing all 21 recognized bat families, with 44 fossil specimens. The Bat1K consortium aims to sequence the genomes of over 1,400 living bat species, and this paper marks substantial progress toward that goal. The findings indicate that bats originated in Europe approximately 65 million years ago before spreading globally, and they also shed light on the evolution of echolocation and powered flight, suggesting these traits co-evolved earlier than previously believed.

U.S. Research Funding Cuts Impact South African Science and Research System

U.S. Research Funding Cuts Impact South African Science and Research System

Science, Technology and Innovation Minister Blade Nzimande announced that the withdrawal of United States research funding has cost South Africa’s science and research system approximately R2.5 billion. This significant reduction in funding has placed 1,930 research posts and 108 student degrees at risk, according to estimates from the South African Medical Research Council. Affected institutions include prominent universities such as the University of Cape Town, Wits University, and the University of Pretoria, as well as CAPRISA. A notable casualty of these cuts was an HIV vaccine trial, which lost a newly awarded five-year grant valued at $45 million. The U.S. government's decision to withdraw funding impacted various health research and clinical trial programs, particularly those focused on HIV and tuberculosis. Minister Nzimande noted that the National Institutes of Health (NIH) has indicated that some funding might be reinstated if it is determined not to fall under the definition of foreign aid.

Record youth turnout? How young voters could impact midterm elections

Record youth turnout? How young voters could impact midterm elections

Recent polls show young voters are excited to vote in this year's midterm elections. Here's what it could mean.

Genetic Variants in WDR4 Gene Linked to Prostate Cancer Susceptibility

Genetic Variants in WDR4 Gene Linked to Prostate Cancer Susceptibility

A recent study published in Frontiers in Genetics has identified a specific genetic variant, rs8130270 in the WDR4 gene, as being associated with prostate cancer susceptibility. Researchers conducted differential expression analysis on mRNA levels and employed logistic regression to examine the relationship between genetic polymorphisms and prostate cancer risk. The N7-methylguanosine (m7G) signaling pathway, known to influence tumor development and immune responses, was a key area of investigation. The study found that WDR4 expression is significantly higher in prostate cancer tissues, and patients with elevated WDR4 mRNA levels showed worse overall survival times. These findings were validated in an independent population, and an expression quantitative trait locus (eQTL) effect was observed between rs8130270 and WDR4 in prostate tissues. Furthermore, single-cell transcriptome sequencing data revealed differing WDR4 expression levels between normal and metastatic tissues.

Study Reveals Genetic Similarities Between Feline and Human Cancers, Advancing Comparative Oncology

Study Reveals Genetic Similarities Between Feline and Human Cancers, Advancing Comparative Oncology

An international study, involving nearly 500 domestic cats from five countries, has mapped the genetic landscape of feline cancers, revealing significant parallels with human cancers. Researchers found that many genes driving cancer in humans and dogs, such as FBXW7, are also mutated in cat cancers, particularly in aggressive mammary tumors. Over 50% of the feline mammary tumors examined had mutations in the FBXW7 gene, which is a known tumor suppressor in human cancers and is associated with poor prognosis. The study also indicated that certain chemotherapy drugs might be more effective in feline tumors with specific genetic mutations, paving the way for precision oncology approaches in veterinary medicine. This research highlights the potential of using naturally occurring cancers in cats as models to understand cancer development and treatment responses in humans, especially given their shared environmental exposures.

New Research Pinpoints European Origin of Bats 60 Million Years Ago, Reshaping Evolutionary History

New Research Pinpoints European Origin of Bats 60 Million Years Ago, Reshaping Evolutionary History

New research, led by Emma Tilling of the Sanger Institute and the Bat1K consortium, indicates that bats first appeared in Europe approximately 60 million years ago during the late Paleocene epoch. This finding, which integrates genetic data from 103 species across all 21 extant bat families with paleontological records, resolves a long-standing gap in understanding mammalian evolution. Previously, the fossil record only showed bats in the early Eocene (52-56 million years ago), by which time they were already advanced flyers with developed echolocation and a global distribution. The study reconstructed reference genomes for 41 species and incorporated data from 62 others, revealing a primary split into two lineages: Yinpterochiroptera and Yangochiroptera. The analysis also suggests a common ancestor with 26 pairs of chromosomes and recalibrates the phylogenetic position of certain groups, such as the Madagascar collared fruit bats. Morphological data from 44 extinct species identified two early ancestral c...