Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1000772 | ENA |
REPOSITORIES: ENA
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Project description:Voltage sensitive potassium channels play an important role in controlling membrane potential and ionic homeostasis in the gut and have been implicated in gastrointestinal (GI) cancers. Through large scale analysis of 897 patients with Gastro-oesophageal adenocarcincomas (GOA) coupled with in vitro models, we find KCNQ family genes are mutated in ~30% of patients, and play therapeutically targetable roles in GOA cancer growth. KCNQ1 and KCNQ3 mediate the WNT pathway and MYC to increase proliferation through resultant effects on cadherins junctions. This also highlights novel roles for KCNQ3 in non-excitable tissues. We additionally discover that activity of KCNQ3 sensitises cancer cells to existing potassium channel inhibitors, and that inhibition of KCNQ activity reduces proliferation of GOA cancer cells. These findings reveal a novel and exploitable role for potassium channels in the advancement of human cancer, and highlight that supplemental treatments for GOAs may exist through KCNQ inhibitors.
2023-09-13 | GSE242782 | GEO
Project description:This project mainly aims to characterize the complex toxic components present in the venom of Indian cobra (Naja naja) from the Western Ghats of India. Naja naja (NN) is native to the Indian subcontinent and is also found in Pakistan, Sri Lanka, Bangladesh and Southern Nepal. It is a highly venomous snake species of genus Naja of the Elapidae family. They are seen in wide habitats like plains, dense or open forests, rocky terrains, wetlands, agricultural lands, and outskirts of villages and even in highly populated urban areas. This species has been included in the ‘Big 4’ category of venomous snake species that accounts for majority of morbidity and mortality cases in India. Therefore, exploring the venom proteome of Naja naja is decisive to develop and design new antivenom and therapeutics against its envenomation. The venom proteome of Naja naja was characterized through various orthogonal separation strategies and identification strategies. In order to achieve this the crude venom components were resolved on a 12% SDS page. Also, the venom was decomplexed through reversed-phase HPLC followed by SDS analysis. Further each of the bands were subjected to in-gel digestion using trypsin, chymotrypsin and V8 proteases. All the digested peptides were then subjected to Q-TOF LC-MS/MS analysis.
2024-06-20 | PXD018936 | Pride