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Liu J, Wang L, Zhang Y, Li S, Sun F, Wang G, Yang T, Wei D, Guo L, Xiao H. Induction of entosis in prostate cancer cells by nintedanib and its therapeutic implications. Oncol Lett 2019; 17:3151-3162. [PMID: 30867745 PMCID: PMC6396220 DOI: 10.3892/ol.2019.9951] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 12/17/2018] [Indexed: 02/07/2023] Open
Abstract
Entosis is a homogeneous cell-in-cell phenomenon and a non-apoptotic cell death process. Tyrosine kinase inhibitors have been used in the treatment of prostate cancer and have already demonstrated efficacy in a clinical setting. The present study investigated the role of entosis in prostate cancer treated with the tyrosine kinase inhibitor nintedanib. Prostate cancer cells were treated with nintedanib in vitro and entosis was observed. Mice xenografts were created to evaluate whether nintedanib is able to induce entosis in vivo. The reverse transcription-quantitative polymerase chain reaction, western blotting and immunofluorescence were performed to investigate whether the entosis pathway is induced by nintedanib. It was also investigated whether entosis can contribute to cell survival and progression under nintedanib stress, and nintedanib was revealed to enhance prostate cancer cell entosis. Nintedanib-induced entosis in prostate cancer cells occurred through phosphoinositide 3-kinase/cell division cycle 42 (CDC42) inhibition, followed by the upregulation of epithelial (E-)cadherin and components of the Rho kinase (ROCK) signaling pathway. In addition, nintedanib-resistant cells exhibiting entosis had a higher invasive ability. In addition, in vivo treatment of mice xenografts with nintedanib also increased the expression of E-cadherin and components of the ROCK signaling pathway. Nintedanib can promote entosis during prostate cancer treatment by modulating the CDC42 pathway. Furthermore, prostate cancer cells acquired nintedanib resistance and survived by activating entosis.
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Affiliation(s)
- Junjiang Liu
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Lei Wang
- Department of Urology, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, P.R. China
| | - Yunxia Zhang
- Department of Obstetrics and Gynecology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Shoubin Li
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Fuzhen Sun
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Gang Wang
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Tao Yang
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Dong Wei
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Liuxiong Guo
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Helong Xiao
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
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Tuulasvaara A, Baussand J, Laine P, Paulin L, Salminen J, Auvinen P, Gorochov G, Arstila TP. High-sequence diversity and structural conservation in the human T-cell receptor β junctional region during thymic development. Eur J Immunol 2013; 43:2185-93. [DOI: 10.1002/eji.201343360] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 03/28/2013] [Accepted: 05/08/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Anni Tuulasvaara
- Department of Bacteriology and Immunology; Haartman Institute; University of Helsinki; Helsinki; Finland
| | | | - Pia Laine
- Institute of Biotechnology; University of Helsinki; Helsinki; Finland
| | - Lars Paulin
- Institute of Biotechnology; University of Helsinki; Helsinki; Finland
| | - Jukka Salminen
- Department of Surgery; Hospital for Children and Adolescents; Helsinki University Hospital; Helsinki; Finland
| | - Petri Auvinen
- Institute of Biotechnology; University of Helsinki; Helsinki; Finland
| | | | - T. Petteri Arstila
- Department of Bacteriology and Immunology; Haartman Institute; University of Helsinki; Helsinki; Finland
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ATM influences the efficiency of TCRβ rearrangement, subsequent TCRβ-dependent T cell development, and generation of the pre-selection TCRβ CDR3 repertoire. PLoS One 2013; 8:e62188. [PMID: 23626787 PMCID: PMC3633875 DOI: 10.1371/journal.pone.0062188] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 03/19/2013] [Indexed: 11/26/2022] Open
Abstract
Generation and resolution of DNA double-strand breaks is required to assemble antigen-specific receptors from the genes encoding V, D, and J gene segments during recombination. The present report investigates the requirement for ataxia telangiectasia-mutated (ATM) kinase, a component of DNA double-strand break repair, during TCRβ recombination and in subsequent TCRβ-dependent repertoire generation and thymocyte development. CD4−CD8− double negative stage 2/3 thymocytes from ATM-deficient mice have both an increased frequency of cells with DNA break foci at TCRβ loci and reduced Vβ-DJβ rearrangement. Sequencing of TCRβ complementarity-determining region 3 demonstrates that ATM-deficient CD4+CD8+ double positive thymocytes and peripheral T cells have altered processing of coding ends for both in-frame and out-of-frame TCRβ rearrangements, providing the unique demonstration that ATM deficiency alters the expressed TCRβ repertoire by a selection-independent mechanism. ATMKO thymi exhibit a partial developmental block in DN cells as they negotiate the β-selection checkpoint to become double negative stage 4 and CD4+CD8+ thymocytes, resulting in reduced numbers of CD4+CD8+ cells. Importantly, expression of a rearranged TCRβ transgene substantially reverses this defect in CD4+CD8+ cells, directly linking a requirement for ATM during endogenous TCRβ rearrangement to subsequent TCRβ-dependent stages of development. These results demonstrate that ATM plays an important role in TCRβ rearrangement, generation of the TCRβ CDR3 repertoire, and efficient TCRβ-dependent T cell development.
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