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Glioblastoma stem cells show transcriptionally correlated spatial organization

2 weeks 6 days ago
Glioblastoma (GBM) is an aggressive brain cancer with a poor survival rate. Despite hundreds of clinical trials, there is no effective targeted therapy. Glioblastoma stem cells (GSCs) are an important GBM model system. In culture, these cells form spatial structures that share morphological aspects with their source tumors. We collected 17,000 phase-contrast images of 15 patient-derived GSC lines growing to confluence. We find that GSCs grow in characteristic multicellular patterns depending on...
Shamini Ayyadhury

Organic chemicals of Arctic concern in Russian coastal seas

3 weeks ago
Arctic ecosystems face significant threats from chemicals of global concern. Persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) have been consistently detected in the Arctic through decades of monitoring. POPs are known to bioaccumulate in food webs, and both POPs and PAHs are toxic posing risks to wildlife and human health. While regular monitoring activities have been implemented in most Arctic countries, information from the Russian Arctic is still limited. This...
Xi-Ze Min

Disseminated pediatric low-grade glioma and hydrocephalus: a multinational consortium analysis of incidence and mortality

3 weeks ago
CONCLUSIONS: This study represents the largest and most comprehensive cohort of patients with DPLGG to date. While histopathology and tumor location were associated with hydrocephalus in this cohort, the dissemination pattern was not directly associated with hydrocephalus incidence but rather the timing of hydrocephalus diagnosis. Hydrocephalus does not impact survival in patients with DPLGG; however, it is associated with worse functional outcomes.
Alexander T Lyons

Proteins in the Genome Browser: Integration of Phylogenies, Alignments, and Structures With Nucleotide-level Evidence in JBrowse 2

3 weeks 1 day ago
Recent advances in protein structure prediction have created high-confidence candidate structures for nearly every known protein-coding gene. At the same time, many software packages have been created to visualize protein structures, protein multiple sequence alignments (MSAs), and protein annotations. However, few software tools can highlight the direct relationship between nucleotide variation of protein-coding genes in genome space and the evolutionary and structural context of that variation...
Colin Diesh

CACHE Challenge #3: Targeting the Nsp3 Macrodomain of SARS-CoV-2

3 weeks 1 day ago
The third Critical Assessment of Computational Hit-finding Experiments (CACHE) challenged computational teams to identify chemically novel ligands targeting the macrodomain 1 of SARS-CoV-2 Nsp3, a promising coronavirus drug target. Twenty-three groups deployed diverse design strategies to collectively select 1739 ligand candidates. While over 85% of the designed molecules were chemically novel, the best experimentally confirmed hits were structurally similar to previously published compounds....
Oleksandra Herasymenko

SorghumBase: a knowledgebase for sorghum genomics, phenomics, and stakeholder engagement

3 weeks 3 days ago
Centralizing valuable community data and resources into a user-friendly interface and accessible repository has become essential for agricultural science; embracing Findable Accessible, Interoperable, and Reusable (FAIR) principles is now standard for effective databases. SorghumBase (https://www.sorghumbase.org) is a knowledgebase designed for the sorghum research community. The SorghumBase team curates genomic, transcriptomic, variation, and phenotypic information and aggregates community...
Nicholas Gladman

Quantitative analysis of genetic interactions in human cells from genome-wide CRISPR-Cas9 screens

3 weeks 6 days ago
Genetic interaction (GI) networks in model organisms have revealed how combinations of genome variants can impact phenotypes. To advance efforts toward a reference human GI network, we developed the quantitative Genetic Interaction (qGI) score, a method for precise GI measurement from genome-wide CRISPR-Cas9 screens in different query mutants constructed in a single human cell line. We found surprising prevalent systematic variation unrelated to GIs in CRISPR screen data, including both...
Maximilian Billmann

Multiomic integration reveals tumoral heterogeneity of lipid dependence within lethal group 3 medulloblastoma

3 weeks 6 days ago
Medulloblastoma, the most common malignant brain tumor of childhood, exhibits significant biological complexity that demands deeper exploration. Here, we present a large multiomics dataset integrating data from 384 primary medulloblastoma patient samples across five omic layers: CpG methylome, transcriptome, proteome, phosphoproteome, and metabolome, paired with associated clinical metadata. Data integration revealed intertumoral heterogeneity of lipid metabolism across proteomic subtypes....
Flavia Bernardi