Sergei Koshkin

Dr. Sergei Koshkin


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
Verified
Journal Article
Open access
PDF file
SKSergei Koshkin
Sergei Koshkin
OAOlga V Anatskaya
Olga V Anatskaya
AVAlexander E Vinogradov
Alexander E Vinogradov
Vladimir N. UverskyVladimir N. Uversky
Vladimir N. Uversky
GDGuy Dayhoff
Guy Dayhoff
ETElena Tolkunova
Elena Tolkunova
Background: Cancer stem cells’ (CSCs) self-maintenance is regulated via the pluripotency pathways promoting the most aggressive tumor phenotype. This study aimed to use the activity of these pathways for the CSCs’ subpopulation enrichment and separating cells characterized by the OCT4 and SOX2 expression. Methods: To select and analyze CSCs, we used the SORE6x lentiviral reporter plasmid for viral transduction of colon adenocarcinoma cells. Additionally, we assessed cell chemoresistance, clonogenic, invasive and migratory activity and the data of mRNA-seq and intrinsic disorder predisposition protein analysis (IDPPA). Results: We obtained the line of CSC-like cells selected on the basis of the expression of the OCT4 and SOX2 stem cell factors. The enriched CSC-like subpopulation had increased chemoresistance as well as clonogenic and migration activities. The bioinformatic analysis of mRNA seq data identified the up-regulation of pluripotency, development, drug resistance and phototransduction pathways, and the downregulation of pathways related to proliferation, cell cycle, aging, and differentiation. IDPPA indicated that CSC-like cells are predisposed to increased intrinsic protein disorder. Conclusion: The use of the SORE6x reporter construct for CSCs enrichment allows us to obtain CSC-like population that can be used as a model to search for the new prognostic factors and potential therapeutic targets for colon cancer treatment.

23 July 2016 in Tumor Biology
Verified
Journal Article
Closed access
PDF file
SKSergei Koshkin
Sergei Koshkin
ADAnna Danilova
Anna Danilova
GRGrigory Raskin
Grigory Raskin
NPNikolai Petrov
Nikolai Petrov
OBOlga Bajenova
Olga Bajenova
ETElena Tolkunova
Elena Tolkunova