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SerpinB3 drives cancer stem cell survival in glioblastoma
Despite therapeutic interventions for glioblastoma (GBM), cancer stem cells (CSCs) drive recurrence. The precise mechanisms underlying CSC resistance, namely inhibition of cell death, are unclear. We built on previous observations that the high cell surface expression of junctional adhesion molecule...
Autores principales: | , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9513382/ https://www.ncbi.nlm.nih.gov/pubmed/36103817 http://dx.doi.org/10.1016/j.celrep.2022.111348 |
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author | Lauko, Adam Volovetz, Josephine Turaga, Soumya M. Bayik, Defne Silver, Daniel J. Mitchell, Kelly Mulkearns-Hubert, Erin E. Watson, Dionysios C. Desai, Kiran Midha, Manav Hao, Jing McCortney, Kathleen Steffens, Alicia Naik, Ulhas Ahluwalia, Manmeet S. Bao, Shideng Horbinski, Craig Yu, Jennifer S. Lathia, Justin D. |
author_facet | Lauko, Adam Volovetz, Josephine Turaga, Soumya M. Bayik, Defne Silver, Daniel J. Mitchell, Kelly Mulkearns-Hubert, Erin E. Watson, Dionysios C. Desai, Kiran Midha, Manav Hao, Jing McCortney, Kathleen Steffens, Alicia Naik, Ulhas Ahluwalia, Manmeet S. Bao, Shideng Horbinski, Craig Yu, Jennifer S. Lathia, Justin D. |
author_sort | Lauko, Adam |
collection | PubMed |
description | Despite therapeutic interventions for glioblastoma (GBM), cancer stem cells (CSCs) drive recurrence. The precise mechanisms underlying CSC resistance, namely inhibition of cell death, are unclear. We built on previous observations that the high cell surface expression of junctional adhesion molecule-A drives CSC maintenance and identified downstream signaling networks, including the cysteine protease inhibitor SerpinB3. Using genetic depletion approaches, we found that SerpinB3 is necessary for CSC maintenance, survival, and tumor growth, as well as CSC pathway activation. Knockdown of SerpinB3 also increased apoptosis and susceptibility to radiation therapy. SerpinB3 was essential to buffer cathepsin L-mediated cell death, which was enhanced with radiation. Finally, we found that SerpinB3 knockdown increased the efficacy of radiation in pre-clinical models. Taken together, our findings identify a GBM CSC-specific survival mechanism involving a cysteine protease inhibitor, SerpinB3, and provide a potential target to improve the efficacy of GBM therapies against therapeutically resistant CSCs. |
format | Online Article Text |
id | pubmed-9513382 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
record_format | MEDLINE/PubMed |
spelling | pubmed-95133822022-09-27 SerpinB3 drives cancer stem cell survival in glioblastoma Lauko, Adam Volovetz, Josephine Turaga, Soumya M. Bayik, Defne Silver, Daniel J. Mitchell, Kelly Mulkearns-Hubert, Erin E. Watson, Dionysios C. Desai, Kiran Midha, Manav Hao, Jing McCortney, Kathleen Steffens, Alicia Naik, Ulhas Ahluwalia, Manmeet S. Bao, Shideng Horbinski, Craig Yu, Jennifer S. Lathia, Justin D. Cell Rep Article Despite therapeutic interventions for glioblastoma (GBM), cancer stem cells (CSCs) drive recurrence. The precise mechanisms underlying CSC resistance, namely inhibition of cell death, are unclear. We built on previous observations that the high cell surface expression of junctional adhesion molecule-A drives CSC maintenance and identified downstream signaling networks, including the cysteine protease inhibitor SerpinB3. Using genetic depletion approaches, we found that SerpinB3 is necessary for CSC maintenance, survival, and tumor growth, as well as CSC pathway activation. Knockdown of SerpinB3 also increased apoptosis and susceptibility to radiation therapy. SerpinB3 was essential to buffer cathepsin L-mediated cell death, which was enhanced with radiation. Finally, we found that SerpinB3 knockdown increased the efficacy of radiation in pre-clinical models. Taken together, our findings identify a GBM CSC-specific survival mechanism involving a cysteine protease inhibitor, SerpinB3, and provide a potential target to improve the efficacy of GBM therapies against therapeutically resistant CSCs. 2022-09-13 /pmc/articles/PMC9513382/ /pubmed/36103817 http://dx.doi.org/10.1016/j.celrep.2022.111348 Text en https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) ). |
spellingShingle | Article Lauko, Adam Volovetz, Josephine Turaga, Soumya M. Bayik, Defne Silver, Daniel J. Mitchell, Kelly Mulkearns-Hubert, Erin E. Watson, Dionysios C. Desai, Kiran Midha, Manav Hao, Jing McCortney, Kathleen Steffens, Alicia Naik, Ulhas Ahluwalia, Manmeet S. Bao, Shideng Horbinski, Craig Yu, Jennifer S. Lathia, Justin D. SerpinB3 drives cancer stem cell survival in glioblastoma |
title | SerpinB3 drives cancer stem cell survival in glioblastoma |
title_full | SerpinB3 drives cancer stem cell survival in glioblastoma |
title_fullStr | SerpinB3 drives cancer stem cell survival in glioblastoma |
title_full_unstemmed | SerpinB3 drives cancer stem cell survival in glioblastoma |
title_short | SerpinB3 drives cancer stem cell survival in glioblastoma |
title_sort | serpinb3 drives cancer stem cell survival in glioblastoma |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9513382/ https://www.ncbi.nlm.nih.gov/pubmed/36103817 http://dx.doi.org/10.1016/j.celrep.2022.111348 |
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