KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors

Testicular germ cell tumors (TGCTs) frequently affect adolescent and young adult males. Although TGCT is more responsive to cisplatin-based chemotherapy than other solid tumors, some patients are nonresponders, and following treatment, many patients continue to experience acute and long-term cytotox...

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Autores principales: Sun, Ruijing, Lee, Eun Joo, Lee, Seonock, Kim, Gamin, Kim, Jungho
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652286/
https://www.ncbi.nlm.nih.gov/pubmed/38020885
http://dx.doi.org/10.3389/fcell.2023.1220179
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author Sun, Ruijing
Lee, Eun Joo
Lee, Seonock
Kim, Gamin
Kim, Jungho
author_facet Sun, Ruijing
Lee, Eun Joo
Lee, Seonock
Kim, Gamin
Kim, Jungho
author_sort Sun, Ruijing
collection PubMed
description Testicular germ cell tumors (TGCTs) frequently affect adolescent and young adult males. Although TGCT is more responsive to cisplatin-based chemotherapy than other solid tumors, some patients are nonresponders, and following treatment, many patients continue to experience acute and long-term cytotoxic effects from cisplatin-based chemotherapy. Consequently, it is imperative to develop new therapeutic modalities for treatment-resistant TGCTs. Peptidyl-prolyl isomerase (Pin1) regulates the activity and stability of many cancer-associated target proteins. Prior findings suggest that Pin1 contributes to the pathogenesis of multiple human cancers. However, the specific function of Pin1 in TGCTs has not yet been elucidated. TGCT cell proliferation and viability were examined using cell cycle analysis and apoptosis assays following treatment with KPT6566, a potent, selective Pin1 inhibitor that covalently binds to the catalytic domain of Pin1. A xenograft mouse model was used to assess the effect of KPT6566 on tumor growth in vivo. KPT6566 effectively suppressed cell proliferation, colony formation, and ATP production in P19 and NCCIT cells. Further, KPT6566 induced apoptotic cell death by generating cellular reactive oxygen species and downregulating the embryonic transcription factors Oct-4 and Sox2. Finally, KPT6566 treatment significantly reduced tumor volume and mass in P19 cell xenografts. The Pin1 inhibitor KPT6566 has significant antiproliferative and antitumor effects in TGCT cells. These findings suggest that Pin1 inhibitors could be considered as a potential therapeutic approach for TGCTs.
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spelling pubmed-106522862023-01-01 KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors Sun, Ruijing Lee, Eun Joo Lee, Seonock Kim, Gamin Kim, Jungho Front Cell Dev Biol Cell and Developmental Biology Testicular germ cell tumors (TGCTs) frequently affect adolescent and young adult males. Although TGCT is more responsive to cisplatin-based chemotherapy than other solid tumors, some patients are nonresponders, and following treatment, many patients continue to experience acute and long-term cytotoxic effects from cisplatin-based chemotherapy. Consequently, it is imperative to develop new therapeutic modalities for treatment-resistant TGCTs. Peptidyl-prolyl isomerase (Pin1) regulates the activity and stability of many cancer-associated target proteins. Prior findings suggest that Pin1 contributes to the pathogenesis of multiple human cancers. However, the specific function of Pin1 in TGCTs has not yet been elucidated. TGCT cell proliferation and viability were examined using cell cycle analysis and apoptosis assays following treatment with KPT6566, a potent, selective Pin1 inhibitor that covalently binds to the catalytic domain of Pin1. A xenograft mouse model was used to assess the effect of KPT6566 on tumor growth in vivo. KPT6566 effectively suppressed cell proliferation, colony formation, and ATP production in P19 and NCCIT cells. Further, KPT6566 induced apoptotic cell death by generating cellular reactive oxygen species and downregulating the embryonic transcription factors Oct-4 and Sox2. Finally, KPT6566 treatment significantly reduced tumor volume and mass in P19 cell xenografts. The Pin1 inhibitor KPT6566 has significant antiproliferative and antitumor effects in TGCT cells. These findings suggest that Pin1 inhibitors could be considered as a potential therapeutic approach for TGCTs. Frontiers Media S.A. 2023-11-02 /pmc/articles/PMC10652286/ /pubmed/38020885 http://dx.doi.org/10.3389/fcell.2023.1220179 Text en Copyright © 2023 Sun, Lee, Lee, Kim and Kim. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Cell and Developmental Biology
Sun, Ruijing
Lee, Eun Joo
Lee, Seonock
Kim, Gamin
Kim, Jungho
KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
title KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
title_full KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
title_fullStr KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
title_full_unstemmed KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
title_short KPT6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
title_sort kpt6566 induces apoptotic cell death and suppresses the tumorigenicity of testicular germ cell tumors
topic Cell and Developmental Biology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10652286/
https://www.ncbi.nlm.nih.gov/pubmed/38020885
http://dx.doi.org/10.3389/fcell.2023.1220179
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