LKB1 (STK11)

@stk11.bsky.social

🎙️ Live, from 19p13, it's Saturday Night! https://en.wikipedia.org/wiki/LKB1

LKB1 loss suppresses estrogen, progesterone, and androgen signalling pathways, and that HLA-DRB5 is consistently downregulated across all STK11-mutated subtypes, suggesting an immune evasion component. A lot going on beyond the canonical AMPK-mTOR axis. www.biorxiv.org/content/10.6...

Multiomic profiling of LKB1 loss of expression in breast cancer

The tumour suppressor LKB1 (STK11) is implicated in diverse cancers, yet its transcriptomic role in breast cancer remains poorly defined. Here, we integrate bulk-tumour genomic analysis of the METABRI...

biorxiv.org

LKB1 loss suppresses estrogen, progesterone, and androgen signalling pathways, and that HLA-DRB5 is consistently downregulated across all STK11-mutated subtypes, suggesting an immune evasion component. A lot going on beyond the canonical AMPK-mTOR axis.

Paola A. Marignani@pmarignani.bsky.social · last mo.

Preprint from marignanilab.com. LKB1 isn't just a tumour suppressor kinase with metabolic function; there's more😁. We used scRNAseq, CRISPR, patient tumours, METABRIC genomics & new mouse model to ask:what is the impact of losing LKB1 expression on breast cancer? www.biorxiv.org/content/10.6...

After a long review process, I'm excited that our paper is finally in print: www.cell.com/cell/fulltex... TL;DR: We use CRISPR screens in iPSC-derived neurons to find a new tau E3 ligase and a relationship between oxidative stress, the proteasome, and tau proteolytic fragments. More below 👇

CRISPR screens in iPSC-derived neurons reveal principles of tau proteostasis

CRISPR screens in iPSC-derived neurons reveal that the E3 ubiquitin ligase CRL5SOCS4 ubiquitinates tau, that CUL5 expression is correlated with resilience in human Alzheimer’s disease, and that electr...

cell.com

As generalized before, most cancer promoting genes are enriched in embryonic neural/neural stemness cells, incl. KRAS/HER2/EGFR/STAT3. They confer cancer cell with neural stemness, which determines tumorigenicity&pluripotency in cells. @pnas.org www.pnas.org/doi/10.1073/...

A targeted combination therapy achieves effective pancreatic cancer regression and prevents tumor resistance | PNAS

Pancreatic ductal adenocarcinoma (PDAC) has one of the lowest cancer survival rates. Recent studies using RAS inhibitors have opened the door to mo...

pnas.org

Single-cell RNA-seq is younger than the iPhone. 🤯 The first bona fide scRNA-seq transcriptomes were published in 2009 by Tang et al., who sequenced individual mouse cells and showed you could capture a whole transcriptome from a single cell. From “sci-fi” to standard tool in just over a decade...