Toxin from black mamba venom inhibits growth of glioma cells selectively expressing ASIC1a channels
The researchers from the IBCh RAS together with the collaborators from the Institute of Cytology RAS demonstrated for the first time the expression of functionally active ASIC1a channels in U251 MG and A172 gliomas cells, but not in normal astrocytes. A recombinant analogue of mambalgin-2 from black mamba venom was used to suppress the cation influx through ASIC1a channels in glioma cells. As it turned out, mambalgin-2 inhibits the growth of gliomas with EC 50 in the nanomolar range, while not affecting the proliferation of normal astrocytes. Mutant variants of mambalgin-2 with impaired affinity for ASIC1a did not affect the proliferation of glioma cells. It was shown that the decrease in the growth of gliomas cells using mambalgin-2 is associated with the cell cycle arrest, inhibition of phosphorylation of cyclin D1 and cyclin-dependent kinases, and apoptosis induction. The study was published in the Cancers journal under support of the Russian Foundation for Basic Research. Learn more
News 
- Discovery of the novel protein encoded in mammalian mitochondrial DNA polymerase gene POLG
science news
IX.25 Researchers from Laboratory of bioinformatics approaches in combinatorial chemistry and biology and Laboratory of high-performance screening of biological objects together with colleagues from Moscow State University and University College Cork (Ireland) discovered novel protein POLGARF, which is encoded in alternative reading frame of mitochondrial DNA polymerase POLG mRNA. The results of this study are published in PNAS.
- Multiscale computation delivers organophosphorus reactivity and stereoselectivity to immunoglobulin scavengers
science news
IX.10 The scientists from the Laboratory of biocatalysis, the Laboratory of proteolytic enzyme chemistry, the Laboratory of bioinformatics approaches in combinatorial chemistry and biology and the Laboratory of hormonal regulation proteins, together with colleagues from EMBL-Hamburg, Moscow State University. M.V. Lomonosov, the Sheffield Institute and the Scripps Research Institute have developed a universal algorithm that makes it possible to create biological antidotes based on biocatalysts, directionally increasing their reactivity, and to predict stereoselectivity.
- The discovery of four genes of the Noggin family in lampreys is consistent with the hypothesis of two rounds of genomic duplications in vertebrate ancestors
science news
IX.10 Researchers from the Laboratory of Molecular Bases of Embryogenesis, together with a colleague from the Severtsov Institute of Ecology and Evolution, described for the first time four genes of the Noggin family in the oldest representatives of vertebrates - lampreys, and compared their structure, expression and some functional features with those of the known genes of this family in other vertebrates.
Events
- Lipids 2021 Conference
conferences
X.19–21.21 Lipids 2021 Conference, October 19-21, 2021, IBCH RAS, Moscow
- Lecture by Director-General of the ICGEB Lawrence Banks «Human Papillomaviruses: From Infectious Entry to Malignancy»
science news
I.27 (This event is over) ICGEB Director-General Group Leader Lawrence Banks will deliver a lecture entitled «Human Papillomaviruses: From Infectious Entry to Malignancy». Date and time: Mon 27 January 2020 14:00. Location: Small conference hall at 3rd floor BON IBCh.
- LIGHTS ON: Molecular Imaging of disease dynamics in vivo
science news
IX.27 — X.11.19 (This event is over) Abhijit De PhD Scientific Officer ‘F’ and Principal Investigator Head, Molecular Functional Imaging Lab Advanced Centre of Training Research and Education in Cancer, Tata Memorial Centre, Kharghar, Navi Mumbai, India.