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Palecki J, Bhasin A, Bernstein A, Mille PJ, Tester WJ, Kelly WK, Zarrabi KK. T-Cell redirecting bispecific antibodies: a review of a novel class of immuno-oncology for advanced prostate cancer. Cancer Biol Ther 2024; 25:2356820. [PMID: 38801069 PMCID: PMC11135853 DOI: 10.1080/15384047.2024.2356820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
Novel T-cell immunotherapies such as bispecific T-cell engagers (BiTEs) are emerging as promising therapeutic strategies for prostate cancer. BiTEs are engineered bispecific antibodies containing two distinct binding domains that allow for concurrent binding to tumor-associated antigens (TAAs) as well as immune effector cells, thus promoting an immune response against cancer cells. Prostate cancer is rich in tumor associated antigens such as, but not limited to, PSMA, PSCA, hK2, and STEAP1 and there is strong biologic rationale for employment of T-cell redirecting BiTEs within the prostate cancer disease space. Early generation BiTE constructs employed in clinical study have demonstrated meaningful antitumor activity, but challenges related to drug delivery, immunogenicity, and treatment-associated adverse effects limited their success. The ongoing development of novel BiTE constructs continues to address these barriers and to yield promising results in terms of efficacy and safety. This review will highlight some of most recent developments of BiTE therapies for patients with advanced prostate cancer and the evolving data surrounding BiTE constructs undergoing clinical evaluation.
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Affiliation(s)
- Julia Palecki
- Department of Internal Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Amman Bhasin
- Department of Internal Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Andrew Bernstein
- Department of Internal Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Patrick J. Mille
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - William J. Tester
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Wm. Kevin Kelly
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Kevin K. Zarrabi
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University Hospital, Philadelphia, PA, USA
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Sun D, Shi X, Li S, Wang X, Yang X, Wan M. CAR‑T cell therapy: A breakthrough in traditional cancer treatment strategies (Review). Mol Med Rep 2024; 29:47. [PMID: 38275119 PMCID: PMC10835665 DOI: 10.3892/mmr.2024.13171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Chimeric antigen receptor (CAR)‑T cell therapy is an innovative approach to immune cell therapy that works by modifying the T cells of a patient to express the CAR protein on their surface, and thus induce their recognition and destruction of cancer cells. CAR‑T cell therapy has shown some success in treating hematological tumors, but it still faces a number of challenges in the treatment of solid tumors, such as antigen selection, tolerability and safety. In response to these issues, studies continue to improve the design of CAR‑T cells in pursuit of improved therapeutic efficacy and safety. In the future, CAR‑T cell therapy is expected to become an important cancer treatment, and may provide new ideas and strategies for individualized immunotherapy. The present review provides a comprehensive overview of the principles, clinical applications, therapeutic efficacy and challenges of CAR‑T cell therapy.
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Affiliation(s)
- Dahua Sun
- Department of General Surgery, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Xiang Shi
- Department of Pathology, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Sanyan Li
- Department of Pathology, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Xiaohua Wang
- Department of Obstetrics, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Xiao Yang
- Department of General Surgery, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
| | - Meiping Wan
- Department of Traditional Chinese Medicine, Qianjiang Central Hospital, Qianjiang, Hubei 433100, P.R. China
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Zorko NA, Makovec A, Elliott A, Kellen S, Lozada JR, Arafa AT, Felices M, Shackelford M, Barata P, Zakharia Y, Narayan V, Stein MN, Zarrabi KK, Patniak A, Bilen MA, Radovich M, Sledge G, El-Deiry WS, Heath EI, Hoon DSB, Nabhan C, Miller JS, Hwang JH, Antonarakis ES. Natural Killer Cell Infiltration in Prostate Cancers Predict Improved Patient Outcomes. Prostate Cancer Prostatic Dis 2024:10.1038/s41391-024-00797-0. [PMID: 38418892 DOI: 10.1038/s41391-024-00797-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Natural killer (NK) cells are non-antigen specific innate immune cells that can be redirected to targets of interest using multiple strategies, although none are currently FDA-approved. We sought to evaluate NK cell infiltration into tumors to develop an improved understanding of which histologies may be most amenable to NK cell-based therapies currently in the developmental pipeline. METHODS DNA (targeted/whole-exome) and RNA (whole-transcriptome) sequencing was performed from tumors from 45 cancer types (N = 90,916 for all cancers and N = 3365 for prostate cancer) submitted to Caris Life Sciences. NK cell fractions and immune deconvolution were inferred from RNA-seq data using quanTIseq. Real-world overall survival (OS) and treatment status was determined and Kaplan-Meier estimates were calculated. Statistical significance was determined using X2 and Mann-Whitney U tests, with corrections for multiple comparisons where appropriate. RESULTS In both a pan-tumor and prostate cancer (PCa) -specific setting, we demonstrated that NK cells represent a substantial proportion of the total cellular infiltrate (median range 2-9% for all tumors). Higher NK cell infiltration was associated with improved OS in 28 of 45 cancer types, including (PCa). NK cell infiltration was negatively correlated with common driver mutations and androgen receptor variants (AR-V7) in primary prostate biopsies, while positively correlated with negative immune regulators. Higher levels of NK cell infiltration were associated with patterns consistent with a compensatory anti-inflammatory response. CONCLUSIONS Using the largest available dataset to date, we demonstrated that NK cells infiltrate a broad range of tumors, including both primary and metastatic PCa. NK cell infiltration is associated with improved PCa patient outcomes. This study demonstrates that NK cells are capable of trafficking to both primary and metastatic PCa and are a viable option for immunotherapy approaches moving forward. Future development of strategies to enhance tumor-infiltrating NK cell-mediated cytolytic activity and activation while limiting inhibitory pathways will be key.
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Affiliation(s)
- Nicholas A Zorko
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA.
| | - Allison Makovec
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | | | - Samuel Kellen
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - John R Lozada
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Ali T Arafa
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Martin Felices
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Madison Shackelford
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Pedro Barata
- University Hospital Seidman Cancer Center, Cleveland, OH, USA
| | | | - Vivek Narayan
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, USA
| | - Mark N Stein
- Herbert Irving Comprehensive Cancer Center, Columbia University New York, New York, NY, USA
| | - Kevin K Zarrabi
- Sidney Kimmel Cancer Center, Jefferson Medical College, Philadelphia, PA, USA
| | - Akash Patniak
- University of Chicago Medicine Comprehensive Cancer Center, Chicago, IL, USA
| | - Mehmet A Bilen
- Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | | | | | | | | | - Dave S B Hoon
- Saint John's Cancer Institute, Saint John's Health Center PHS, Santa Monica, CA, USA
| | | | - Jeffrey S Miller
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Justin H Hwang
- Masonic Cancer Center, University of Minnesota-Twin Cities, Minneapolis, MN, USA
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