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Yi M, Li T, Niu M, Zhang H, Wu Y, Wu K, Dai Z. Targeting cytokine and chemokine signaling pathways for cancer therapy. Signal Transduct Target Ther 2024; 9:176. [PMID: 39034318 PMCID: PMC11275440 DOI: 10.1038/s41392-024-01868-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/30/2024] [Accepted: 05/11/2024] [Indexed: 07/23/2024] Open
Abstract
Cytokines are critical in regulating immune responses and cellular behavior, playing dual roles in both normal physiology and the pathology of diseases such as cancer. These molecules, including interleukins, interferons, tumor necrosis factors, chemokines, and growth factors like TGF-β, VEGF, and EGF, can promote or inhibit tumor growth, influence the tumor microenvironment, and impact the efficacy of cancer treatments. Recent advances in targeting these pathways have shown promising therapeutic potential, offering new strategies to modulate the immune system, inhibit tumor progression, and overcome resistance to conventional therapies. In this review, we summarized the current understanding and therapeutic implications of targeting cytokine and chemokine signaling pathways in cancer. By exploring the roles of these molecules in tumor biology and the immune response, we highlighted the development of novel therapeutic agents aimed at modulating these pathways to combat cancer. The review elaborated on the dual nature of cytokines as both promoters and suppressors of tumorigenesis, depending on the context, and discussed the challenges and opportunities this presents for therapeutic intervention. We also examined the latest advancements in targeted therapies, including monoclonal antibodies, bispecific antibodies, receptor inhibitors, fusion proteins, engineered cytokine variants, and their impact on tumor growth, metastasis, and the tumor microenvironment. Additionally, we evaluated the potential of combining these targeted therapies with other treatment modalities to overcome resistance and improve patient outcomes. Besides, we also focused on the ongoing research and clinical trials that are pivotal in advancing our understanding and application of cytokine- and chemokine-targeted therapies for cancer patients.
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Affiliation(s)
- Ming Yi
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310000, People's Republic of China
| | - Tianye Li
- Department of Gynecology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310000, People's Republic of China
| | - Mengke Niu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Haoxiang Zhang
- Department of Hepatopancreatobiliary Surgery, Fujian Provincial Hospital, Fuzhou, 350001, People's Republic of China
| | - Yuze Wu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Kongming Wu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
| | - Zhijun Dai
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310000, People's Republic of China.
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2
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Chen H, Fang S, Zhu X, Liu H. Cancer-associated fibroblasts and prostate cancer stem cells: crosstalk mechanisms and implications for disease progression. Front Cell Dev Biol 2024; 12:1412337. [PMID: 39092186 PMCID: PMC11291335 DOI: 10.3389/fcell.2024.1412337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 07/05/2024] [Indexed: 08/04/2024] Open
Abstract
The functional heterogeneity and ecological niche of prostate cancer stem cells (PCSCs), which are major drivers of prostate cancer development and treatment resistance, have attracted considerable research attention. Cancer-associated fibroblasts (CAFs), which are crucial components of the tumor microenvironment (TME), substantially affect PCSC stemness. Additionally, CAFs promote PCSC growth and survival by releasing signaling molecules and modifying the surrounding environment. Conversely, PCSCs may affect the characteristics and behavior of CAFs by producing various molecules. This crosstalk mechanism is potentially crucial for prostate cancer progression and the development of treatment resistance. Using organoids to model the TME enables an in-depth study of CAF-PCSC interactions, providing a valuable preclinical tool to accurately evaluate potential target genes and design novel treatment strategies for prostate cancer. The objective of this review is to discuss the current research on the multilevel and multitarget regulatory mechanisms underlying CAF-PCSC interactions and crosstalk, aiming to inform therapeutic approaches that address challenges in prostate cancer treatment.
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Affiliation(s)
| | | | | | - Hao Liu
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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3
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Mohamed AH, Ahmed AT, Al Abdulmonem W, Bokov DO, Shafie A, Al-Hetty HRAK, Hsu CY, Alissa M, Nazir S, Jamali MC, Mudhafar M. Interleukin-6 serves as a critical factor in various cancer progression and therapy. Med Oncol 2024; 41:182. [PMID: 38900329 DOI: 10.1007/s12032-024-02422-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/06/2024] [Indexed: 06/21/2024]
Abstract
Interleukin-6 (IL-6), a pro-inflammatory cytokine, plays a crucial role in host immune defense and acute stress responses. Moreover, it modulates various cellular processes, including proliferation, apoptosis, angiogenesis, and differentiation. These effects are facilitated by various signaling pathways, particularly the signal transducer and activator of transcription 3 (STAT3) and Janus kinase 2 (JAK2). However, excessive IL-6 production and dysregulated signaling are associated with various cancers, promoting tumorigenesis by influencing all cancer hallmarks, such as apoptosis, survival, proliferation, angiogenesis, invasiveness, metastasis, and notably, metabolism. Emerging evidence indicates that selective inhibition of the IL-6 signaling pathway yields therapeutic benefits across diverse malignancies, such as multiple myeloma, prostate, colorectal, renal, ovarian, and lung cancers. Targeting key components of IL-6 signaling, such as IL-6Rs, gp130, STAT3, and JAK via monoclonal antibodies (mAbs) or small molecules, is a heavily researched approach in preclinical cancer studies. The purpose of this study is to offer an overview of the role of IL-6 and its signaling pathway in various cancer types. Furthermore, we discussed current preclinical and clinical studies focusing on targeting IL-6 signaling as a therapeutic strategy for various types of cancer.
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Affiliation(s)
- Asma'a H Mohamed
- Biomedical Engineering Department, College of Engineering and Technologies, Al-Mustaqbal University, Babil, Hilla, 51001, Iraq
| | - Abdulrahman T Ahmed
- Department of Nursing, Al-Maarif University College, Ramadi, AL-Anbar Governorate, Iraq.
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraidah, Kingdom of Saudi Arabia
| | - Dmitry Olegovich Bokov
- Institute of Pharmacy named after A.P. Nelyubin, Sechenov First Moscow State Medical University, 8 Trubetskaya St., bldg. 2, Moscow, Russian Federation, 119991
- Laboratory of Food Chemistry, Federal Research Center of Nutrition, Biotechnology and Food Safety, 2/14 Ustyinsky pr., Moscow, Russian Federation, 109240
| | - Alaa Shafie
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
| | | | - Chou-Yi Hsu
- Thunderbird School of Global Management, Arizona State University Tempe Campus, Phoenix, AZ, 85004, USA
| | - Mohammed Alissa
- Department of Medical Laboratory, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Shahid Nazir
- School of Science and Technology, University of New England, Armidale, NSW, Australia
| | - Mohammad Chand Jamali
- Faculty of Medical and Health Sciences, Liwa College, Al Ain, Abu Dhabi, United Arab Emirates
| | - Mustafa Mudhafar
- Department of Medical Physics, College of Applied Medical Sciences, University of Kerbala, Karbala, 56001, Iraq
- Department of Anesthesia Techniques and Intensive Care, Al-Taff University College, Kerbala, 56001, Iraq
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4
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Wang M, Chen S, He X, Yuan Y, Wei X. Targeting inflammation as cancer therapy. J Hematol Oncol 2024; 17:13. [PMID: 38520006 PMCID: PMC10960486 DOI: 10.1186/s13045-024-01528-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 02/07/2024] [Indexed: 03/25/2024] Open
Abstract
Inflammation has accompanied human beings since the emergence of wounds and infections. In the past decades, numerous efforts have been undertaken to explore the potential role of inflammation in cancer, from tumor development, invasion, and metastasis to the resistance of tumors to treatment. Inflammation-targeted agents not only demonstrate the potential to suppress cancer development, but also to improve the efficacy of other therapeutic modalities. In this review, we describe the highly dynamic and complex inflammatory tumor microenvironment, with discussion on key inflammation mediators in cancer including inflammatory cells, inflammatory cytokines, and their downstream intracellular pathways. In addition, we especially address the role of inflammation in cancer development and highlight the action mechanisms of inflammation-targeted therapies in antitumor response. Finally, we summarize the results from both preclinical and clinical studies up to date to illustrate the translation potential of inflammation-targeted therapies.
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Affiliation(s)
- Manni Wang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No.17, Block3, Southern Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Siyuan Chen
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No.17, Block3, Southern Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Xuemei He
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No.17, Block3, Southern Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No.17, Block3, Southern Renmin Road, Chengdu, 610041, Sichuan, People's Republic of China.
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5
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Hu Y, Dong Z, Liu K. Unraveling the complexity of STAT3 in cancer: molecular understanding and drug discovery. J Exp Clin Cancer Res 2024; 43:23. [PMID: 38245798 PMCID: PMC10799433 DOI: 10.1186/s13046-024-02949-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a transcriptional factor involved in almost all cancer hallmark features including tumor proliferation, metastasis, angiogenesis, immunosuppression, tumor inflammation, metabolism reprogramming, drug resistance, cancer stemness. Therefore, STAT3 has become a promising therapeutic target in a wide range of cancers. This review focuses on the up-to-date knowledge of STAT3 signaling in cancer. We summarize both the positive and negative modulators of STAT3 together with the cancer hallmarks involving activities regulated by STAT3 and highlight its extremely sophisticated regulation on immunosuppression in tumor microenvironment and metabolic reprogramming. Direct and indirect inhibitors of STAT3 in preclinical and clinical studies also have been summarized and discussed. Additionally, we highlight and propose new strategies of targeting STAT3 and STAT3-based combinations with established chemotherapy, targeted therapy, immunotherapy and combination therapy. These efforts may provide new perspectives for STAT3-based target therapy in cancer.
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Affiliation(s)
- Yamei Hu
- Tianjian Laboratory for Advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China
- Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Zigang Dong
- Tianjian Laboratory for Advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China.
- Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China.
| | - Kangdong Liu
- Tianjian Laboratory for Advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China.
- State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou, Henan, China.
- Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou, Henan, China.
- Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China.
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Olivera I, Luri-Rey C, Teijeira A, Eguren-Santamaria I, Gomis G, Palencia B, Berraondo P, Melero I. Facts and Hopes on Neutralization of Protumor Inflammatory Mediators in Cancer Immunotherapy. Clin Cancer Res 2023; 29:4711-4727. [PMID: 37522874 DOI: 10.1158/1078-0432.ccr-22-3653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/26/2023] [Accepted: 07/14/2023] [Indexed: 08/01/2023]
Abstract
In cancer pathogenesis, soluble mediators are responsible for a type of inflammation that favors the progression of tumors. The mechanisms chiefly involve changes in the cellular composition of the tumor tissue stroma and in the functional modulation of myeloid and lymphoid leukocytes. Active immunosuppression, proangiogenesis, changes in leukocyte traffic, extracellular matrix remodeling, and alterations in tumor-antigen presentation are the main mechanisms linked to the inflammation that fosters tumor growth and metastasis. Soluble inflammatory mediators and their receptors are amenable to various types of inhibitors that can be combined with other immunotherapy approaches. The main proinflammatory targets which can be interfered with at present and which are under preclinical and clinical development are IL1β, IL6, the CXCR1/2 chemokine axis, TNFα, VEGF, leukemia inhibitory factor, CCL2, IL35, and prostaglandins. In many instances, the corresponding neutralizing agents are already clinically available and can be repurposed as a result of their use in other areas of medicine such as autoimmune diseases and chronic inflammatory conditions.
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Affiliation(s)
- Irene Olivera
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - Carlos Luri-Rey
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - Alvaro Teijeira
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Iñaki Eguren-Santamaria
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - Gabriel Gomis
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - Belen Palencia
- Department of Immunology and Immunotherapy, Clínica Universidad de Navarra, Pamplona, Spain
| | - Pedro Berraondo
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
| | - Ignacio Melero
- Program of Immunology and Immunotherapy, Center for Applied Medical Research (CIMA), Pamplona, Spain
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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Rozenberg JM, Buzdin AA, Mohammad T, Rakitina OA, Didych DA, Pleshkan VV, Alekseenko IV. Molecules promoting circulating clusters of cancer cells suggest novel therapeutic targets for treatment of metastatic cancers. Front Immunol 2023; 14:1099921. [PMID: 37006265 PMCID: PMC10050392 DOI: 10.3389/fimmu.2023.1099921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
Treatment of metastatic disease remains among the most challenging tasks in oncology. One of the early events that predicts a poor prognosis and precedes the development of metastasis is the occurrence of clusters of cancer cells in the blood flow. Moreover, the presence of heterogeneous clusters of cancerous and noncancerous cells in the circulation is even more dangerous. Review of pathological mechanisms and biological molecules directly involved in the formation and pathogenesis of the heterotypic circulating tumor cell (CTC) clusters revealed their common properties, which include increased adhesiveness, combined epithelial-mesenchymal phenotype, CTC-white blood cell interaction, and polyploidy. Several molecules involved in the heterotypic CTC interactions and their metastatic properties, including IL6R, CXCR4 and EPCAM, are targets of approved or experimental anticancer drugs. Accordingly, analysis of patient survival data from the published literature and public datasets revealed that the expression of several molecules affecting the formation of CTC clusters predicts patient survival in multiple cancer types. Thus, targeting of molecules involved in CTC heterotypic interactions might be a valuable strategy for the treatment of metastatic cancers.
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Affiliation(s)
- Julian M. Rozenberg
- Laboratory of Translational Bioinformatics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Anton A. Buzdin
- Laboratory of Translational Bioinformatics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- PathoBiology Group, European Organization for Research and Treatment of Cancer (EORTC), Brussels, Belgium
- Group for Genomic Analysis of Cell Signaling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- Laboratory for Clinical Genomic Bioinformatics, Sechenov First Moscow State Medical University, Moscow, Russia
- *Correspondence: Anton Buzdin,
| | - Tharaa Mohammad
- Laboratory of Translational Bioinformatics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Olga A. Rakitina
- Gene Immunooncotherapy Group, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Dmitry A. Didych
- Laboratory of human genes structure and functions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Victor V. Pleshkan
- Gene Immunooncotherapy Group, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- Gene oncotherapy sector, Institute of Molecular Genetics of National Research Centre (Kurchatov Institute), Moscow, Russia
| | - Irina V. Alekseenko
- Gene Immunooncotherapy Group, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- Gene oncotherapy sector, Institute of Molecular Genetics of National Research Centre (Kurchatov Institute), Moscow, Russia
- Laboratory of Epigenetics, Institute of Oncogynecology and Mammology, National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov, Ministry of Healthcare of the Russian Federation, Moscow, Russia
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Deichaite I, Sears TJ, Sutton L, Rebibo D, Morgan K, Nelson T, Rose B, Tamayo P, Ferrara N, Asimakopoulos F, Carter H. Differential regulation of TNFα and IL-6 expression contributes to immune evasion in prostate cancer. J Transl Med 2022; 20:527. [PMID: 36371231 PMCID: PMC9652804 DOI: 10.1186/s12967-022-03731-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/27/2022] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The role of the inflammatory milieu in prostate cancer progression is not well understood. Differences in inflammatory signaling between localized and metastatic disease may point to opportunities for early intervention. METHODS We modeled PCa disease progression by analyzing RNA-seq of localized vs. metastatic patient samples, followed by CIBERSORTx to assess their immune cell populations. The VHA CDW registry of PCa patients was analyzed for anti-TNF clinical outcomes. RESULTS We observed statistically significant opposing patterns of IL-6 and TNFα expression between localized and metastatic disease. IL-6 was robustly expressed in localized disease and downregulated in metastatic disease. The reverse was observed with TNFα expression. Metastatic disease was also characterized by downregulation of adhesion molecule E-selectin, matrix metalloproteinase ADAMTS-4 and a shift to M2 macrophages whereas localized disease demonstrated a preponderance of M1 macrophages. Treatment with anti-TNF agents was associated with earlier stage disease at diagnosis. CONCLUSIONS Our data points to clearly different inflammatory contexts between localized and metastatic prostate cancer. Primary localized disease demonstrates local inflammation and adaptive immunity, whereas metastases are characterized by immune cold microenvironments and a shift towards resolution of inflammation and tissue repair. Therapies that interfere with these inflammatory networks may offer opportunities for early intervention in monotherapy or in combination with immunotherapies and anti-angiogenic approaches.
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Affiliation(s)
- Ida Deichaite
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA.
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA.
| | - Timothy J Sears
- Bioinformatics and Systems Biology Program, University of California San Diego, La Jolla, CA, USA
| | - Leisa Sutton
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Daniel Rebibo
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Kylie Morgan
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
| | - Tyler Nelson
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| | - Brent Rose
- Department of Radiation Medicine and Applied Sciences, University of California San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Urology, University of California San Diego, La Jolla, CA, USA
| | - Pablo Tamayo
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
- Division of Medical Genetics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Center for Novel Therapeutics, University of California San Diego, La Jolla, CA, USA
| | - Napoleone Ferrara
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Fotis Asimakopoulos
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
- Division of Blood and Marrow Transplantation, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Hannah Carter
- Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
- Division of Medical Genetics, Department of Medicine, University of California San Diego, La Jolla, CA, USA
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Chibaya L, Snyder J, Ruscetti M. Senescence and the tumor-immune landscape: Implications for cancer immunotherapy. Semin Cancer Biol 2022; 86:827-845. [PMID: 35143990 PMCID: PMC9357237 DOI: 10.1016/j.semcancer.2022.02.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/03/2022] [Indexed: 01/27/2023]
Abstract
Cancer therapies, including conventional chemotherapy, radiation, and molecularly targeted agents, can lead to tumor eradication through a variety of mechanisms. In addition to their effects on tumor cell growth and survival, these regimens can also influence the surrounding tumor-immune microenvironment in ways that ultimately impact therapy responses. A unique biological outcome of cancer therapy is induction of cellular senescence. Senescence is a damage-induced stress program that leads to both the durable arrest of tumor cells and remodeling the tumor-immune microenvironment through activation of a collection pleiotropic cytokines, chemokines, growth factors, and proteinases known as the senescence-associated secretory phenotype (SASP). Depending on the cancer context and the mechanism of action of the therapy, the SASP produced following therapy-induced senescence (TIS) can promote anti-tumor immunity that enhances therapeutic efficacy, or alternatively chronic inflammation that leads to therapy failure and tumor relapse. Thus, a deeper understanding of the mechanisms regulating the SASP and components necessary for robust anti-tumor immune surveillance in different cancer and therapy contexts are key to harnessing senescence for tumor control. Here we draw a roadmap to modulate TIS and its immune-stimulating features for cancer immunotherapy.
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Affiliation(s)
- Loretah Chibaya
- Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Jarin Snyder
- Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Marcus Ruscetti
- Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA; Immunology and Microbiology Program, University of Massachusetts Chan Medical School, Worcester, MA, USA; Cancer Center, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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10
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Kotamarti S, Armstrong AJ, Polascik TJ, Moul JW. Molecular Mechanisms of Castrate-Resistant Prostate Cancer. Urol Clin North Am 2022; 49:615-626. [DOI: 10.1016/j.ucl.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Smith AE, Muralidharan A, Smith MT. Prostate cancer induced bone pain: pathobiology, current treatments and pain responses from recent clinical trials. Discov Oncol 2022; 13:108. [PMID: 36258057 PMCID: PMC9579264 DOI: 10.1007/s12672-022-00569-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/29/2022] [Indexed: 11/04/2022] Open
Abstract
PURPOSE Metastatic spread of prostate cancer to the skeleton may result in debilitating bone pain. In this review, we address mechanisms underpinning the pathobiology of metastatic prostate cancer induced bone pain (PCIBP) that include sensitization and sprouting of primary afferent sensory nerve fibres in bone. We also review current treatments and pain responses evoked by various treatment modalities in clinical trials in this patient population. METHODS We reviewed the literature using PubMed to identify research on the pathobiology of PCIBP. Additionally, we reviewed clinical trials of various treatment modalities in patients with PCIBP with pain response outcomes published in the past 7 years. RESULTS Recent clinical trials show that radionuclides, given either alone or in combination with chemotherapy, evoked favourable pain responses in many patients and a single fraction of local external beam radiation therapy was as effective as multiple fractions. However, treatment with chemotherapy, small molecule inhibitors and/or immunotherapy agents, produced variable pain responses but pain response was the primary endpoint in only one of these trials. Additionally, there were no published trials of potentially novel analgesic agents in patients with PCIBP. CONCLUSION There is a knowledge gap for clinical trials of chemotherapy, small molecule inhibitors and/or immunotherapy in patients with PCIBP where pain response is the primary endpoint. Also, there are no novel analgesic agents on the horizon for the relief of PCIBP and this is an area of large unmet medical need that warrants concerted research attention.
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Affiliation(s)
- A. E. Smith
- St Vincent’s Hospital, Darlinghurst, Sydney, NSW Australia
| | - A. Muralidharan
- Neurobiology of Chronic Pain, The Charles Perkins Centre, Faculty of Science, The University of Sydney, Sydney, NSW 2006 Australia
| | - M. T. Smith
- Centre for Integrated Preclinical Drug Development, School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia Campus, Brisbane, QLD 4072 Australia
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Prostate Cancer Tumor Stroma: Responsibility in Tumor Biology, Diagnosis and Treatment. Cancers (Basel) 2022; 14:cancers14184412. [PMID: 36139572 PMCID: PMC9496870 DOI: 10.3390/cancers14184412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 12/24/2022] Open
Abstract
Simple Summary The crosstalk between prostate stroma and its epithelium is essential to tissue homeostasis. Likewise, reciprocal signaling between tumor cells and the stromal compartment is required in tumor progression to facilitate or stimulate key processes such as cell proliferation and invasion. The aim of the present work was to review the current state of knowledge on the significance of tumor stroma in the genesis, progression and therapeutic response of prostate carcinoma. Additionally, we addressed the future therapeutic opportunities. Abstract Prostate cancer (PCa) is a common cancer among males globally, and its occurrence is growing worldwide. Clinical decisions about the combination of therapies are becoming highly relevant. However, this is a heterogeneous disease, ranging widely in prognosis. Therefore, new approaches are needed based on tumor biology, from which further prognostic assessments can be established and complementary strategies can be identified. The knowledge of both the morphological structure and functional biology of the PCa stroma compartment can provide new diagnostic, prognostic or therapeutic possibilities. In the present review, we analyzed the aspects related to the tumor stromal component (both acellular and cellular) in PCa, their influence on tumor behavior and the therapeutic response and their consideration as a new therapeutic target.
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Fan Y, Hou T, Dan W, Zhu Y, Liu B, Wei Y, Wang Z, Gao Y, Zeng J, Li L. ERK1/2 inhibits Cullin 3/SPOP-mediated PrLZ ubiquitination and degradation to modulate prostate cancer progression. Cell Death Differ 2022; 29:1611-1624. [PMID: 35194188 PMCID: PMC9345960 DOI: 10.1038/s41418-022-00951-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 01/25/2022] [Accepted: 01/31/2022] [Indexed: 11/09/2022] Open
Abstract
The gene encoding the E3 ubiquitin ligase substrate-binding adaptor SPOP is frequently mutated in prostate cancer (PCa), but how SPOP functions as a tumor suppressor and contributes to PCa pathogenesis remains poorly understood. Prostate Leucine Zipper (PrLZ) serves as a prostate-specific and androgen-responsive gene, which plays a pivotal role in the malignant progression of PCa. However, the upstream regulatory mechanism of PrLZ protein stability and its physiological contribution to PCa carcinogenesis remain largely elusive. Here we report that PrLZ can be degraded by SPOP. PrLZ abundance is elevated in SPOP-mutant expressing PCa cell lines and patient specimens. Meanwhile, ERK1/2 might regulate SPOP-mediated PrLZ degradation through phosphorylating PrLZ at Ser40, which blocks the interaction between SPOP and PrLZ. In addition, we identify IL-6 might act as an upstream PrLZ degradation regulator via promoting its phosphorylation by ERK1/2, leading to its impaired recognition by SPOP. Thus, our study reveals a novel SPOP substrate PrLZ which might be controlled by ERK1/2-mediated phosphorylation, thereby facilitating to explore novel drug targets and improve therapeutic strategy for PCa.
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Ni Y, Low JT, Silke J, O'Reilly LA. Digesting the Role of JAK-STAT and Cytokine Signaling in Oral and Gastric Cancers. Front Immunol 2022; 13:835997. [PMID: 35844493 PMCID: PMC9277720 DOI: 10.3389/fimmu.2022.835997] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 05/16/2022] [Indexed: 12/12/2022] Open
Abstract
When small proteins such as cytokines bind to their associated receptors on the plasma membrane, they can activate multiple internal signaling cascades allowing information from one cell to affect another. Frequently the signaling cascade leads to a change in gene expression that can affect cell functions such as proliferation, differentiation and homeostasis. The Janus kinase-signal transducer and activator of transcription (JAK-STAT) and the tumor necrosis factor receptor (TNFR) are the pivotal mechanisms employed for such communication. When deregulated, the JAK-STAT and the TNF receptor signaling pathways can induce chronic inflammatory phenotypes by promoting more cytokine production. Furthermore, these signaling pathways can promote replication, survival and metastasis of cancer cells. This review will summarize the essentials of the JAK/STAT and TNF signaling pathways and their regulation and the molecular mechanisms that lead to the dysregulation of the JAK-STAT pathway. The consequences of dysregulation, as ascertained from founding work in haematopoietic malignancies to more recent research in solid oral-gastrointestinal cancers, will also be discussed. Finally, this review will highlight the development and future of therapeutic applications which modulate the JAK-STAT or the TNF signaling pathways in cancers.
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Affiliation(s)
- Yanhong Ni
- Central Laboratory, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jun T Low
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - John Silke
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Lorraine A O'Reilly
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
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Gopinathan G, Berlato C, Lakhani A, Szabova L, Pegrum C, Pedrosa AR, Laforets F, Maniati E, Balkwill FR. Immune Mechanisms of Resistance to Cediranib in Ovarian Cancer. Mol Cancer Ther 2022; 21:1030-1043. [PMID: 35313341 PMCID: PMC9167758 DOI: 10.1158/1535-7163.mct-21-0689] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 01/11/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022]
Abstract
This article investigates mechanisms of resistance to the VEGF receptor inhibitor cediranib in high-grade serous ovarian cancer (HGSOC), and defines rational combination therapies. We used three different syngeneic orthotopic mouse HGSOC models that replicated the human tumor microenvironment (TME). After 4 to 5 weeks treatment of established tumors, cediranib had antitumor activity with increased tumor T-cell infiltrates and alterations in myeloid cells. However, continued cediranib treatment did not change overall survival or the immune microenvironment in two of the three models. Moreover, treated mice developed additional peritoneal metastases not seen in controls. Cediranib-resistant tumors had intrinsically high levels of IL6 and JAK/STAT signaling and treatment increased endothelial STAT3 activation. Combination of cediranib with a murine anti-IL6 antibody was superior to monotherapy, increasing mouse survival, reducing blood vessel density, and pSTAT3, with increased T-cell infiltrates in both models. In a third HGSOC model, that had lower inherent IL6 JAK/STAT3 signaling in the TME but high programmed cell death protein 1 (PD-1) signaling, long-term cediranib treatment significantly increased overall survival. When the mice eventually relapsed, pSTAT3 was still reduced in the tumors but there were high levels of immune cell PD-1 and Programmed death-ligand 1. Combining cediranib with an anti-PD-1 antibody was superior to monotherapy in this model, increasing T cells and decreasing blood vessel densities. Bioinformatics analysis of two human HGSOC transcriptional datasets revealed distinct clusters of tumors with IL6 and PD-1 pathway expression patterns that replicated the mouse tumors. Combination of anti-IL6 or anti-PD-1 in these patients may increase activity of VEGFR inhibitors and prolong disease-free survival.
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Affiliation(s)
- Ganga Gopinathan
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Chiara Berlato
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Anissa Lakhani
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Ludmila Szabova
- Frederick National Laboratory for Cancer Research, Tumour Microenvironment Leidos Biomedical Research Inc, Frederick, Maryland
| | - Colin Pegrum
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Ana-Rita Pedrosa
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Florian Laforets
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Eleni Maniati
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
| | - Frances R. Balkwill
- Barts Cancer Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London; London, United Kingdom
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Giridharan M, Rupani V, Banerjee S. Signaling Pathways and Targeted Therapies for Stem Cells in Prostate Cancer. ACS Pharmacol Transl Sci 2022; 5:193-206. [PMID: 35434534 PMCID: PMC9003388 DOI: 10.1021/acsptsci.2c00019] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Indexed: 12/30/2022]
Abstract
Prostate cancer (PCa) is one of the most frequently occurring cancers among men, and the current statistics show that it is the second leading cause of cancer-related deaths among men. Over the years, research in PCa treatment and therapies has made many advances. Despite these efforts, the standardized therapies such as radiation, chemotherapy, hormonal therapy and surgery are not considered completely effective in treating advanced and metastatic PCa. In most situations, fast-dividing tumor cells are targeted, leaving behind relatively slowly dividing, chemoresistant cells known as cancer stem cells. Therefore, following the seemingly successful treatments, the lingering quiescent cancer stem cells are able to renew themselves, undergo differentiation into mature tumor cells, and sufficiently reinitiate the disease, leading to cancer relapse. Thus, prostate cancer stem cells (PCSCs) have been reported to play a vital role in controlling the dynamics of tumorigenesis, progression, and resistance to therapies in PCa. However, the complete knowledge on the mechanisms regulating the stemness of PCSCs is still unclear. Thus, studying the stemness of PCSCs will allow for the development of more effective cancer therapies due to the durable response, resulting in a reduction in recurrences of cancer. In this Review, we will specifically describe the molecular mechanisms responsible for regulating the stemness of PCSCs. Furthermore, current developments in stem cell-specific therapeutic approaches along with future prospects will also be discussed.
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Affiliation(s)
- Madhuvanthi Giridharan
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore-632104, Tamil Nadu, India
| | - Vasu Rupani
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore-632104, Tamil Nadu, India
| | - Satarupa Banerjee
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore-632104, Tamil Nadu, India
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Thromboinflammatory Processes at the Nexus of Metabolic Dysfunction and Prostate Cancer: The Emerging Role of Periprostatic Adipose Tissue. Cancers (Basel) 2022; 14:cancers14071679. [PMID: 35406450 PMCID: PMC8996963 DOI: 10.3390/cancers14071679] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 02/07/2023] Open
Abstract
Simple Summary As overweight and obesity increase among the population worldwide, a parallel increase in the number of individuals diagnosed with prostate cancer was observed. There appears to be a relationship between both diseases where the increase in the mass of fat tissue can lead to inflammation. Such a state of inflammation could produce many factors that increase the aggressiveness of prostate cancer, especially if this inflammation occurred in the fat stores adjacent to the prostate. Another important observation that links obesity, fat tissue inflammation, and prostate cancer is the increased production of blood clotting factors. In this article, we attempt to explain the role of these latter factors in the effect of increased body weight on the progression of prostate cancer and propose new ways of treatment that act by affecting how these clotting factors work. Abstract The increased global prevalence of metabolic disorders including obesity, insulin resistance, metabolic syndrome and diabetes is mirrored by an increased incidence of prostate cancer (PCa). Ample evidence suggests that these metabolic disorders, being characterized by adipose tissue (AT) expansion and inflammation, not only present as risk factors for the development of PCa, but also drive its increased aggressiveness, enhanced progression, and metastasis. Despite the emerging molecular mechanisms linking AT dysfunction to the various hallmarks of PCa, thromboinflammatory processes implicated in the crosstalk between these diseases have not been thoroughly investigated. This is of particular importance as both diseases present states of hypercoagulability. Accumulating evidence implicates tissue factor, thrombin, and active factor X as well as other players of the coagulation cascade in the pathophysiological processes driving cancer development and progression. In this regard, it becomes pivotal to elucidate the thromboinflammatory processes occurring in the periprostatic adipose tissue (PPAT), a fundamental microenvironmental niche of the prostate. Here, we highlight key findings linking thromboinflammation and the pleiotropic effects of coagulation factors and their inhibitors in metabolic diseases, PCa, and their crosstalk. We also propose several novel therapeutic targets and therapeutic interventions possibly modulating the interaction between these pathological states.
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Wang H, Man Q, Huo F, Gao X, Lin H, Li S, Wang J, Su F, Cai, L, Shi Y, Liu, B, Bu L. STAT3 pathway in cancers: Past, present, and future. MedComm (Beijing) 2022; 3:e124. [PMID: 35356799 PMCID: PMC8942302 DOI: 10.1002/mco2.124] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/13/2022] [Accepted: 02/21/2022] [Indexed: 12/13/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3), a member of the STAT family, discovered in the cytoplasm of almost all types of mammalian cells, plays a significant role in biological functions. The duration of STAT3 activation in normal tissues is a transient event and is strictly regulated. However, in cancer tissues, STAT3 is activated in an aberrant manner and is induced by certain cytokines. The continuous activation of STAT3 regulates the expression of downstream proteins associated with the formation, progression, and metastasis of cancers. Thus, elucidating the mechanisms of STAT3 regulation and designing inhibitors targeting the STAT3 pathway are considered promising strategies for cancer treatment. This review aims to introduce the history, research advances, and prospects concerning the STAT3 pathway in cancer. We review the mechanisms of STAT3 pathway regulation and the consequent cancer hallmarks associated with tumor biology that are induced by the STAT3 pathway. Moreover, we summarize the emerging development of inhibitors that target the STAT3 pathway and novel drug delivery systems for delivering these inhibitors. The barriers against targeting the STAT3 pathway, the focus of future research on promising targets in the STAT3 pathway, and our perspective on the overall utility of STAT3 pathway inhibitors in cancer treatment are also discussed.
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Affiliation(s)
- Han‐Qi Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Qi‐Wen Man
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
- Department of Oral & Maxillofacial Head Neck Oncology School & Hospital of Stomatology Wuhan University Wuhan China
| | - Fang‐Yi Huo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Xin Gao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Hao Lin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Su‐Ran Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Jing Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Fu‐Chuan Su
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Lulu Cai,
- Personalized Drug Therapy Key Laboratory of Sichuan Province Department of Pharmacy School of Medicine Sichuan Provincial People's Hospital University of Electronic Science and Technology of China Chengdu China
| | - Yi Shi
- Sichuan Provincial Key Laboratory for Human Disease Gene Study and Department of Laboratory Medicine Sichuan Provincial People's Hospital University of Electronic Science and Technology of China Chengdu China
| | - Bing Liu,
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
- Department of Oral & Maxillofacial Head Neck Oncology School & Hospital of Stomatology Wuhan University Wuhan China
| | - Lin‐Lin Bu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
- Department of Oral & Maxillofacial Head Neck Oncology School & Hospital of Stomatology Wuhan University Wuhan China
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Tarrar TA, Anwar MY, Ali MA, Saeed M, Rehman S, Bajwa SF, Ayub T, Javid H, Ali R, Irshad A, Aiman W. Current Status of Monoclonal Antibodies-Based Therapies in Castration-Resistant Prostate Cancer: A Systematic Review and Meta-Analysis of Clinical Trials. Cureus 2022; 14:e22942. [PMID: 35411277 PMCID: PMC8989703 DOI: 10.7759/cureus.22942] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2022] [Indexed: 02/05/2023] Open
Abstract
Background Multiple patients with prostate cancer become resistant to castration therapies, which is termed castration-resistant prostate cancer (CRPC). Purpose The purpose of this review is to assess the status of efficacy (≥50% decline in prostate-specific antigen (PSA), progression-free survival (PFS), and overall survival (OS)) and safety (grade 3-4 adverse effects) of monoclonal antibodies in CRPC. Data source We searched databases including PubMed, Embase, Cochrane, Web of Science, and ClinicalTrials.gov. Results Hazard ratios of PFS and OS were 0.77 (95% CI = 0.69-0.87, I2 = 53%) and 0.98 (95% CI = 0.86-1.11, I2 = 40%), respectively, in the favor of monoclonal antibodies as compared to placebo. Risk ratio (RR) of >50% decline in PSA was 1.99 (95% CI = 0.97-4.08, I2 = 53%) in favor of monoclonal antibodies. Pooled incidence of >50% decline in PSA levels was 15% (95% CI = 0.1-0.23, I2 = 83%), 29% (95% CI = 0.14-0.51, I2 = 93%), 63% (95% CI = 0.49-0.76, I2 = 77%), and 88% (95% CI = 0.81-0.93, I2 = 0%) in single, two, three, and four-drug regimens, respectively. Conclusion Monoclonal antibodies are well tolerated and showed better PFS as compared to placebo. However, OS was only improved with ipilimumab. Denosumab delayed skeletal-related adverse events as compared to zoledronic acid. More multicenter double-blind clinical trials may be needed to confirm these results.
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Whitburn J, Rao SR, Morris EV, Tabata S, Hirayama A, Soga T, Edwards JR, Kaya Z, Palmer C, Hamdy FC, Edwards CM. Metabolic profiling of prostate cancer in skeletal microenvironments identifies G6PD as a key mediator of growth and survival. SCIENCE ADVANCES 2022; 8:eabf9096. [PMID: 35213227 PMCID: PMC8880772 DOI: 10.1126/sciadv.abf9096] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The spread of cancer to bone is invariably fatal, with complex cross-talk between tumor cells and the bone microenvironment responsible for driving disease progression. By combining in silico analysis of patient datasets with metabolomic profiling of prostate cancer cells cultured with bone cells, we demonstrate the changing energy requirements of prostate cancer cells in the bone microenvironment, identifying the pentose phosphate pathway (PPP) as elevated in prostate cancer bone metastasis, with increased expression of the PPP rate-limiting enzyme glucose-6-phosphate dehydrogenase (G6PD) associated with a reduction in progression-free survival. Genetic and pharmacologic manipulation demonstrates that G6PD inhibition reduces prostate cancer growth and migration, associated with changes in cellular redox state and increased chemosensitivity. Genetic blockade of G6PD in vivo results in reduction of tumor growth within bone. In summary, we demonstrate the metabolic plasticity of prostate cancer cells in the bone microenvironment, identifying the PPP and G6PD as metabolic targets for the treatment of prostate cancer bone metastasis.
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Affiliation(s)
- Jessica Whitburn
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Srinivasa R. Rao
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Emma V. Morris
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Sho Tabata
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - Akiyoshi Hirayama
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan
| | - James R. Edwards
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Zeynep Kaya
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Charlotte Palmer
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Freddie C. Hamdy
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Claire M. Edwards
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
- Corresponding author.
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Salkeni MA, Shin JY, Gulley JL. Resistance to Immunotherapy: Mechanisms and Means for Overcoming. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1342:45-80. [PMID: 34972962 DOI: 10.1007/978-3-030-79308-1_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Immune checkpoint blockade transformed cancer therapy during the last decade. However, durable responses remain uncommon, early and late relapses occur over the course of treatment, and many patients with PD-L1-expressing tumors do not respond to PD-(L)1 blockade. In addition, while some malignancies exhibit inherent resistance to treatment, others develop adaptations that allow them to evade antitumor immunity after a period of response. It is crucial to understand the pathophysiology of the tumor-immune system interplay and the mechanisms of immune escape in order to circumvent primary and acquired resistance. Here we provide an outline of the most well-defined mechanisms of resistance and shed light on ongoing efforts to reinvigorate immunoreactivity.
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Affiliation(s)
- Mohamad A Salkeni
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, MD, USA.
| | - John Y Shin
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Sharafi-Badr P, Karoobi S, Monsef-Esfahani HR, Ghahremani MH, Adhami HR. In vitro Cytotoxic Screening of Different Parts from Ornithogalum bungei on Selected Cancer Cells. IRANIAN JOURNAL OF MEDICAL SCIENCES 2022; 47:63-72. [PMID: 35017779 PMCID: PMC8743371 DOI: 10.30476/ijms.2021.89521.2037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/01/2021] [Accepted: 03/11/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Natural products comprise a large section of pharmaceutical agents in the field of cancer therapy. In the present study, the organic extracts and fractions of various parts of Ornithogalum bungei were investigated for in vitro cytotoxic properties on three human cancer cell lines, hepatocellular carcinoma (HepG2), prostate cancer (PC3), and leukemia (K562) cells. METHODS The present experimental study was conducted at Tehran University of Medical Sciences (Tehran, Iran) during 2017-2019. Separately extracted plant materials, including bulbs, stems, and flowers of O. bungei were assessed by the tetrazolium dye-based colorimetric assay (MTT). The selected extracts were submitted to fractionation using vacuum liquid chromatography and after MTT assay, the half maximal inhibitory concentration (IC50 (value for each fraction was determined. The data were analyzed using One-way ANOVA followed by Tukey's post hoc test. P<0.05 was considered statistically significant. RESULTS The cytotoxicity of the bulb's methanol extract and the dichloromethane extract of aerial parts increased in a concentration-dependent manner. Additionally, cell viability decreased in a dose-dependent manner. In the HepG2 cell line, the best IC50 values of fractions from DCM extracts of aerial parts were determined to be 19.8±10.2 µg/mL after 24 hours of exposure and 19.39±6.4 µg/mL following 48 hours of exposure. In the PC3 cell line, after 48 hours of exposure, the IC50 values of fractions were unaccountable, while the percentage of inhibition for A6 to A11 in 24 hours of exposure was more than 40 µg/mL. CONCLUSION O. bungei growing in Iran showed significant potentials as a cytotoxic agent with selective effects on different cancer cell lines.
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Affiliation(s)
- Paria Sharafi-Badr
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sepideh Karoobi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Hossein Ghahremani
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
Toxicology and Poisoning Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid-Reza Adhami
- Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Decreased miR-497-5p Suppresses IL-6 Induced Atrophy in Muscle Cells. Cells 2021; 10:cells10123527. [PMID: 34944037 PMCID: PMC8700610 DOI: 10.3390/cells10123527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/24/2021] [Accepted: 12/01/2021] [Indexed: 12/11/2022] Open
Abstract
Interleukin-6 (IL-6) is a pro-inflammatory cytokine associated with skeletal muscle wasting in cancer cachexia. The control of gene expression by microRNAs (miRNAs) in muscle wasting involves the regulation of thousands of target transcripts. However, the miRNA-target networks associated with IL6-induced muscle atrophy remain to be characterized. Here, we show that IL-6 promotes the atrophy of C2C12 myotubes and changes the expression of 20 miRNAs (5 up-regulated and 15 down-regulated). Gene Ontology analysis of predicted miRNAs targets revealed post-transcriptional regulation of genes involved in cell differentiation, apoptosis, migration, and catabolic processes. Next, we performed a meta-analysis of miRNA-published data that identified miR-497-5p, a down-regulated miRNAs induced by IL-6, also down-regulated in other muscle-wasting conditions. We used miR-497-5p mimics and inhibitors to explore the function of miR-497-5p in C2C12 myoblasts and myotubes. We found that miR-497-5p can regulate the expression of the cell cycle genes CcnD2 and CcnE1 without affecting the rate of myoblast cellular proliferation. Notably, miR-497-5p mimics induced myotube atrophy and reduced Insr expression. Treatment with miR-497-5p inhibitors did not change the diameter of the myotubes but increased the expression of its target genes Insr and Igf1r. These genes are known to regulate skeletal muscle regeneration and hypertrophy via insulin-like growth factor pathway and were up-regulated in cachectic muscle samples. Our miRNA-regulated network analysis revealed a potential role for miR-497-5p during IL6-induced muscle cell atrophy and suggests that miR-497-5p is likely involved in a compensatory mechanism of muscle atrophy in response to IL-6.
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24
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Loh JJ, Ma S. The Role of Cancer-Associated Fibroblast as a Dynamic Player in Mediating Cancer Stemness in the Tumor Microenvironment. Front Cell Dev Biol 2021; 9:727640. [PMID: 34760886 PMCID: PMC8573407 DOI: 10.3389/fcell.2021.727640] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/24/2021] [Indexed: 01/15/2023] Open
Abstract
The enrichment of cancer-associated fibroblast (CAFs) in a tumor microenvironment (TME) cultivates a pro-tumorigenic niche via aberrant paracrine signaling and matrix remodeling. A favorable niche is critical to the maintenance of cancer stem cells (CSCs), a population of cells that are characterized by their enhanced ability to self-renew, metastasis, and develop therapy resistance. Mounting evidence illustrates the interplay between CAF and cancer cells expedites malignant progression. Therefore, targeting the key cellular components and factors in the niche may promote a more efficacious treatment. In this study, we discuss how CAF orchestrates a niche that enhances CSC features and the potential therapeutic implication.
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Affiliation(s)
- Jia Jian Loh
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Stephanie Ma
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Pokfulam, Hong Kong, SAR China
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25
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Market M, Tennakoon G, Auer RC. Postoperative Natural Killer Cell Dysfunction: The Prime Suspect in the Case of Metastasis Following Curative Cancer Surgery. Int J Mol Sci 2021; 22:ijms222111378. [PMID: 34768810 PMCID: PMC8583911 DOI: 10.3390/ijms222111378] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/02/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022] Open
Abstract
Surgical resection is the foundation for the curative treatment of solid tumors. However, metastatic recurrence due to the difficulty in eradicating micrometastases remain a feared outcome. Paradoxically, despite the beneficial effects of surgical removal of the primary tumor, the physiological stress resulting from surgical trauma serves to promote cancer recurrence and metastasis. The postoperative environment suppresses critical anti-tumor immune effector cells, including Natural Killer (NK) cells. The literature suggests that NK cells are critical mediators in the formation of metastases immediately following surgery. The following review will highlight the mechanisms that promote the formation of micrometastases by directly or indirectly inducing NK cell suppression following surgery. These include tissue hypoxia, neuroendocrine activation, hypercoagulation, the pro-inflammatory phase, and the anti-inflammatory phase. Perioperative therapeutic strategies designed to prevent or reverse NK cell dysfunction will also be examined for their potential to improve cancer outcomes by preventing surgery-induced metastases.
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Affiliation(s)
- Marisa Market
- Faculty of Medicine, University of Ottawa, Ottawa, ON K1G 8M5, Canada; (M.M.); (G.T.)
- The Ottawa Hospital Research Institute, Ottawa, ON K1G 4E3, Canada
| | - Gayashan Tennakoon
- Faculty of Medicine, University of Ottawa, Ottawa, ON K1G 8M5, Canada; (M.M.); (G.T.)
| | - Rebecca C. Auer
- The Ottawa Hospital Research Institute, Ottawa, ON K1G 4E3, Canada
- Department of General Surgery, The Ottawa Hospital, Ottawa, ON K1Y 4E9, Canada
- Correspondence: ; Tel.: +1-613-722-7000
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26
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Ebersbach C, Beier AMK, Thomas C, Erb HHH. Impact of STAT Proteins in Tumor Progress and Therapy Resistance in Advanced and Metastasized Prostate Cancer. Cancers (Basel) 2021; 13:4854. [PMID: 34638338 PMCID: PMC8508518 DOI: 10.3390/cancers13194854] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/17/2022] Open
Abstract
Signal transducers and activators of transcription (STATs) are a family of transcription factors involved in several biological processes such as immune response, cell survival, and cell growth. However, they have also been implicated in the development and progression of several cancers, including prostate cancer (PCa). Although the members of the STAT protein family are structurally similar, they convey different functions in PCa. STAT1, STAT3, and STAT5 are associated with therapy resistance. STAT1 and STAT3 are involved in docetaxel resistance, while STAT3 and STAT5 are involved in antiandrogen resistance. Expression of STAT3 and STAT5 is increased in PCa metastases, and together with STAT6, they play a crucial role in PCa metastasis. Further, expression of STAT3, STAT5, and STAT6 was elevated in advanced and high-grade PCa. STAT2 and STAT4 are currently less researched in PCa. Since STATs are widely involved in PCa, they serve as potential therapeutic targets. Several inhibitors interfering with STATs signaling have been tested unsuccessfully in PCa clinical trials. This review focuses on the respective roles of the STAT family members in PCa, especially in metastatic disease and provides an overview of STAT-inhibitors evaluated in clinical trials.
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Affiliation(s)
- Celina Ebersbach
- Department of Urology, Technische Universität Dresden, 01307 Dresden, Germany; (C.E.); (A.-M.K.B.); (C.T.)
- Mildred Scheel Early Career Center, Department of Urology, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Alicia-Marie K. Beier
- Department of Urology, Technische Universität Dresden, 01307 Dresden, Germany; (C.E.); (A.-M.K.B.); (C.T.)
- Mildred Scheel Early Career Center, Department of Urology, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Christian Thomas
- Department of Urology, Technische Universität Dresden, 01307 Dresden, Germany; (C.E.); (A.-M.K.B.); (C.T.)
| | - Holger H. H. Erb
- Department of Urology, Technische Universität Dresden, 01307 Dresden, Germany; (C.E.); (A.-M.K.B.); (C.T.)
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27
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Maia A, Wiemann S. Cancer-Associated Fibroblasts: Implications for Cancer Therapy. Cancers (Basel) 2021; 13:3526. [PMID: 34298736 PMCID: PMC8307167 DOI: 10.3390/cancers13143526] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022] Open
Abstract
Tumour cells do not exist as an isolated entity. Instead, they are surrounded by and closely interact with cells of the environment they are emerged in. The tumour microenvironment (TME) is not static and several factors, including cancer cells and therapies, have been described to modulate several of its components. Fibroblasts are key elements of the TME with the capacity to influence tumour progression, invasion and response to therapy, which makes them attractive targets in cancer treatment. In this review, we focus on fibroblasts and their numerous roles in the TME with a special attention to recent findings describing their heterogeneity and role in therapy response. Furthermore, we explore how different therapies can impact these cells and their communication with cancer cells. Finally, we highlight potential strategies targeting this cell type that can be employed for improving patient outcome.
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Affiliation(s)
- Ana Maia
- German Cancer Research Center (DKFZ), Division of Molecular Genome Analysis, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Stefan Wiemann
- German Cancer Research Center (DKFZ), Division of Molecular Genome Analysis, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
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28
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Dzobo K, Dandara C. Architecture of Cancer-Associated Fibroblasts in Tumor Microenvironment: Mapping Their Origins, Heterogeneity, and Role in Cancer Therapy Resistance. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2021; 24:314-339. [PMID: 32496970 DOI: 10.1089/omi.2020.0023] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The tumor stroma, a key component of the tumor microenvironment (TME), is a key determinant of response and resistance to cancer treatment. The stromal cells, extracellular matrix (ECM), and blood vessels influence cancer cell response to therapy and play key roles in tumor relapse and therapeutic outcomes. Of the stromal cells present in the TME, much attention has been given to cancer-associated fibroblasts (CAFs) as they are the most abundant and important in cancer initiation, progression, and therapy resistance. Besides releasing several factors, CAFs also synthesize the ECM, a key component of the tumor stroma. In this expert review, we examine the role of CAFs in the regulation of tumor cell behavior and reveal how CAF-derived factors and signaling influence tumor cell heterogeneity and development of novel strategies to combat cancer. Importantly, CAFs display both phenotypic and functional heterogeneity, with significant ramifications on CAF-directed therapies. Principal anti-cancer therapies targeting CAFs take the form of: (1) CAFs' ablation through use of immunotherapies, (2) re-education of CAFs to normalize the cells, (3) cellular therapies involving CAFs delivering drugs such as oncolytic adenoviruses, and (4) stromal depletion via targeting the ECM and its related signaling. The CAFs' heterogeneity could be a result of different cellular origins and the cancer-specific tumor microenvironmental effects, underscoring the need for further multiomics and biochemical studies on CAFs and the subsets. Lastly, we present recent advances in therapeutic targeting of CAFs and the success of such endeavors or their lack thereof. We recommend that to advance global public health and personalized medicine, treatments in the oncology clinic should be combinatorial in nature, strategically targeting both cancer cells and stromal cells, and their interactions.
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Affiliation(s)
- Kevin Dzobo
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa.,Division of Medical Biochemistry, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Collet Dandara
- Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
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29
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Liu RJ, Li SY, Liu LQ, Xu B, Chen M. Identification of biomarkers, pathways and potential therapeutic target for docetaxel resistant prostate cancer. Bioengineered 2021; 12:2377-2388. [PMID: 34077304 PMCID: PMC8806863 DOI: 10.1080/21655979.2021.1936831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Docetaxel has been proved to provide survival benefit for advanced prostate cancer (PCa) patients. Resistance to docetaxel further reduces the survival of these patients. Herein, we performed a comprehensive bioinformatic analysis to identify differentially expressed genes (DEGs) between docetaxel sensitive and resistant PCa (DRPC) cell based on Gene Expression Omnibus (GEO) database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were applied for functional and pathway analysis of DEGs. The STRING database, cytoscape software and plug-in 'cytoHubba' were used to construct protein-protein interaction (PPI) networks and identify hub genes. Survival analysis were performed via GEPIA database. Finally, we conducted immune infiltration analysis by TIMER. A total of 460 DEGs were identified. GO functional analysis showed that these DEGs are mainly enriched in chemotaxis, negative regulation of intracellular signal transduction, and regulation of cell adhesion, positive regulation of inflammatory response, regulation of response to cytokine stimulus. According to the results of KEGG pathway analysis, these DEGs are mainly involved in signaling by Rho GTPases, Miro GTPases and RHOBTB3; interferon Signaling; arginine biosynthesis; PI3K-Akt signaling pathway; cytokine-cytokine receptor interaction; MAPK signaling pathway. Finally, CCNB1 and EZH2 were identified as prognostic hub genes and the expression of these two genes were associated with immune infiltration. The present study may helps to improve the understanding of the molecular mechanisms of DRPC and facilitate the selection of therapeutic and prognostic biomarkers for DRPC.
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Affiliation(s)
- Rui-Ji Liu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Shu-Ying- Li
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Cancer Hospital Affiliate to School of Medicine, UESTC, Chengdu, China
| | - Li-Quan Liu
- Department of Urology, Meishan City People's Hospital, Meishan, China
| | - Bin Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Ming Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.,Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China.,Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
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30
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The two facets of gp130 signalling in liver tumorigenesis. Semin Immunopathol 2021; 43:609-624. [PMID: 34047814 PMCID: PMC8443519 DOI: 10.1007/s00281-021-00861-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 04/28/2021] [Indexed: 02/06/2023]
Abstract
The liver is a vital organ with multiple functions and a large regenerative capacity. Tumours of the liver are the second most frequently cause of cancer-related death and develop in chronically inflamed livers. IL-6-type cytokines are mediators of inflammation and almost all members signal via the receptor subunit gp130 and the downstream signalling molecule STAT3. We here summarize current knowledge on how gp130 signalling and STAT3 in tumour cells and cells of the tumour micro-environment drives hepatic tumorigenesis. We furthermore discuss very recent findings describing also anti-tumorigenic roles of gp130/STAT3 and important considerations for therapeutic interventions.
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31
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Ehsani M, David FO, Baniahmad A. Androgen Receptor-Dependent Mechanisms Mediating Drug Resistance in Prostate Cancer. Cancers (Basel) 2021; 13:1534. [PMID: 33810413 PMCID: PMC8037957 DOI: 10.3390/cancers13071534] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/17/2021] [Accepted: 03/20/2021] [Indexed: 12/16/2022] Open
Abstract
Androgen receptor (AR) is a main driver of prostate cancer (PCa) growth and progression as well as the key drug target. Appropriate PCa treatments differ depending on the stage of cancer at diagnosis. Although androgen deprivation therapy (ADT) of PCa is initially effective, eventually tumors develop resistance to the drug within 2-3 years of treatment onset leading to castration resistant PCa (CRPC). Castration resistance is usually mediated by reactivation of AR signaling. Eventually, PCa develops additional resistance towards treatment with AR antagonists that occur regularly, also mostly due to bypass mechanisms that activate AR signaling. This tumor evolution with selection upon therapy is presumably based on a high degree of tumor heterogenicity and plasticity that allows PCa cells to proliferate and develop adaptive signaling to the treatment and evolve pathways in therapy resistance, including resistance to chemotherapy. The therapy-resistant PCa phenotype is associated with more aggressiveness and increased metastatic ability. By far, drug resistance remains a major cause of PCa treatment failure and lethality. In this review, various acquired and intrinsic mechanisms that are AR‑dependent and contribute to PCa drug resistance will be discussed.
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Affiliation(s)
| | | | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Am Klinikum 1, 07740 Jena, Germany; (M.E.); (F.O.D.)
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32
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Bahmad HF, Jalloul M, Azar J, Moubarak MM, Samad TA, Mukherji D, Al-Sayegh M, Abou-Kheir W. Tumor Microenvironment in Prostate Cancer: Toward Identification of Novel Molecular Biomarkers for Diagnosis, Prognosis, and Therapy Development. Front Genet 2021; 12:652747. [PMID: 33841508 PMCID: PMC8033163 DOI: 10.3389/fgene.2021.652747] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer (PCa) is by far the most commonly diagnosed cancer in men worldwide. Despite sensitivity to androgen deprivation, patients with advanced disease eventually develop resistance to therapy and may die of metastatic castration-resistant prostate cancer (mCRPC). A key challenge in the management of PCa is the clinical heterogeneity that is hard to predict using existing biomarkers. Defining molecular biomarkers for PCa that can reliably aid in diagnosis and distinguishing patients who require aggressive therapy from those who should avoid overtreatment is a significant unmet need. Mechanisms underlying the development of PCa are not confined to cancer epithelial cells, but also involve the tumor microenvironment. The crosstalk between epithelial cells and stroma in PCa has been shown to play an integral role in disease progression and metastasis. A number of key markers of reactive stroma has been identified including stem/progenitor cell markers, stromal-derived mediators of inflammation, regulators of angiogenesis, connective tissue growth factors, wingless homologs (Wnts), and integrins. Here, we provide a synopsis of the stromal-epithelial crosstalk in PCa focusing on the relevant molecular biomarkers pertaining to the tumor microenvironment and their role in diagnosis, prognosis, and therapy development.
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Affiliation(s)
- Hisham F Bahmad
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.,Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL, United States
| | - Mohammad Jalloul
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Joseph Azar
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Maya M Moubarak
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Tamara Abdul Samad
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Deborah Mukherji
- Department of Internal Medicine, Division of Hematology-Oncology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Mohamed Al-Sayegh
- Biology Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
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33
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Kreps LM, Addison CL. Targeting Intercellular Communication in the Bone Microenvironment to Prevent Disseminated Tumor Cell Escape from Dormancy and Bone Metastatic Tumor Growth. Int J Mol Sci 2021; 22:ijms22062911. [PMID: 33805598 PMCID: PMC7998601 DOI: 10.3390/ijms22062911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/06/2021] [Accepted: 03/11/2021] [Indexed: 02/07/2023] Open
Abstract
Metastasis to the bone is a common feature of many cancers including those of the breast, prostate, lung, thyroid and kidney. Once tumors metastasize to the bone, they are essentially incurable. Bone metastasis is a complex process involving not only intravasation of tumor cells from the primary tumor into circulation, but extravasation from circulation into the bone where they meet an environment that is generally suppressive of their growth. The bone microenvironment can inhibit the growth of disseminated tumor cells (DTC) by inducing dormancy of the DTC directly and later on following formation of a micrometastatic tumour mass by inhibiting metastatic processes including angiogenesis, bone remodeling and immunosuppressive cell functions. In this review we will highlight some of the mechanisms mediating DTC dormancy and the complex relationships which occur between tumor cells and bone resident cells in the bone metastatic microenvironment. These inter-cellular interactions may be important targets to consider for development of novel effective therapies for the prevention or treatment of bone metastases.
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Affiliation(s)
- Lauren M. Kreps
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada;
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8L6, Canada
| | - Christina L. Addison
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada;
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8L6, Canada
- Department of Medicine, University of Ottawa, Ottawa, ON K1H 8L6, Canada
- Correspondence: ; Tel.: +1-613-737-7700
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34
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Shackleton EG, Ali HY, Khan M, Pockley GA, McArdle SE. Novel Combinatorial Approaches to Tackle the Immunosuppressive Microenvironment of Prostate Cancer. Cancers (Basel) 2021; 13:1145. [PMID: 33800156 PMCID: PMC7962457 DOI: 10.3390/cancers13051145] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 12/13/2022] Open
Abstract
Prostate cancer (PCa) is the second-most common cancer in men worldwide and treatment options for patients with advanced or aggressive prostate cancer or recurrent disease continue to be of limited success and are rarely curative. Despite immune checkpoint blockade (ICB) efficacy in some melanoma, lung, kidney and breast cancers, immunotherapy efforts have been remarkably unsuccessful in PCa. One hypothesis behind this lack of efficacy is the generation of a distinctly immunosuppressive prostate tumor microenvironment (TME) by regulatory T cells, MDSCs, and type 2 macrophages which have been implicated in a variety of pathological conditions including solid cancers. In PCa, Tregs and MDSCs are attracted to TME by low-grade chronic inflammatory signals, while tissue-resident type 2 macrophages are induced by cytokines such as IL4, IL10, IL13, transforming growth factor beta (TGFβ) or prostaglandin E2 (PGE2) produced by Th2 cells. These then drive tumor progression, therapy resistance and the generation of castration resistance, ultimately conferring a poor prognosis. The biology of MDSC and Treg is highly complex and the development, proliferation, maturation or function can each be pharmacologically mediated to counteract the immunosuppressive effects of these cells. Herein, we present a critical review of Treg, MDSC and M2 involvement in PCa progression but also investigate a newly recognized type of immune suppression induced by the chronic stimulation of the sympathetic adrenergic signaling pathway and propose targeted strategies to be used in a combinatorial modality with immunotherapy interventions such as ICB, Sipuleucel-T or antitumor vaccines for an enhanced anti-PCa tumor immune response. We conclude that a strategic sequence of therapeutic interventions in combination with additional holistic measures will be necessary to achieve maximum benefit for PCa patients.
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Affiliation(s)
- Erin G. Shackleton
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (E.G.S.); (H.Y.A.); (G.A.P.)
| | - Haleema Yoosuf Ali
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (E.G.S.); (H.Y.A.); (G.A.P.)
| | - Masood Khan
- Department of Urology, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK;
| | - Graham A. Pockley
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (E.G.S.); (H.Y.A.); (G.A.P.)
- Centre for Health, Ageing and Understanding Disease, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
| | - Stephanie E. McArdle
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK; (E.G.S.); (H.Y.A.); (G.A.P.)
- Centre for Health, Ageing and Understanding Disease, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK
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35
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Devlies W, Handle F, Devos G, Joniau S, Claessens F. Preclinical Models in Prostate Cancer: Resistance to AR Targeting Therapies in Prostate Cancer. Cancers (Basel) 2021; 13:915. [PMID: 33671614 PMCID: PMC7926818 DOI: 10.3390/cancers13040915] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/18/2022] Open
Abstract
Prostate cancer is an androgen-driven tumor. Different prostate cancer therapies consequently focus on blocking the androgen receptor pathway. Clinical studies reported tumor resistance mechanisms by reactivating and bypassing the androgen pathway. Preclinical models allowed the identification, confirmation, and thorough study of these pathways. This review looks into the current and future role of preclinical models to understand resistance to androgen receptor-targeted therapies. Increasing knowledge on this resistance will greatly improve insights into tumor pathophysiology and future treatment strategies in prostate cancer.
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Affiliation(s)
- Wout Devlies
- Laboratory of Molecular Endocrinology, KU Leuven, 3000 Leuven, Belgium;
- Department of Urology, University Hospitals Leuven, 3000 Leuven, Belgium; (G.D.); (S.J.)
| | - Florian Handle
- Division of Experimental Urology, Department of Urology, Medical University of Innsbruck, 6020 Innsbruck, Austria;
| | - Gaëtan Devos
- Department of Urology, University Hospitals Leuven, 3000 Leuven, Belgium; (G.D.); (S.J.)
| | - Steven Joniau
- Department of Urology, University Hospitals Leuven, 3000 Leuven, Belgium; (G.D.); (S.J.)
| | - Frank Claessens
- Laboratory of Molecular Endocrinology, KU Leuven, 3000 Leuven, Belgium;
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36
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Vacchelli E, Galluzzi L, Eggermont A, Galon J, Tartour E, Zitvogel L, Kroemer G. Trial Watch: Immunostimulatory cytokines. Oncoimmunology 2021; 1:493-506. [PMID: 22754768 PMCID: PMC3382908 DOI: 10.4161/onci.20459] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
During the last two decades, a number of approaches for the activation of the immune system against cancer has been developed. These include highly specific interventions, such as monoclonal antibodies, vaccines and cell-based therapies, as well as relatively unselective strategies, such as the systemic administration of adjuvants and immunomodulatory cytokines. Cytokines constitute a huge group of proteins that, taken together, regulate not only virtually all the aspects of innate and cognate immunity, but also several other cellular and organismal functions. Cytokines operate via specific transmembrane receptors that are expressed on the plasma membrane of target cells and, depending on multiple variables, can engage autocrine, paracrine or endocrine signaling pathways. The most appropriate term for defining the cytokine network is “pleiotropic”: cytokines are produced by - and operate on - multiple, often overlapping, cell types, triggering context-depend biological outcomes as diverse as cell proliferation, chemotaxis, differentiation, inflammation, elimination of pathogens and cell death. Moreover, cytokines often induce the release of additional cytokines, thereby engaging self-amplificatory or self-inhibitory signaling cascades. In this Trial Watch, we will summarize the biological properties of cytokines and discuss the progress of ongoing clinical studies evaluating their safety and efficacy as immunomodulatory agents against cancer.
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Affiliation(s)
- Erika Vacchelli
- INSERM; U848; Villejuif, France ; Université Paris-Sud/Paris XI; Paris, France
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37
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Accogli T, Bruchard M, Végran F. Modulation of CD4 T Cell Response According to Tumor Cytokine Microenvironment. Cancers (Basel) 2021; 13:cancers13030373. [PMID: 33498483 PMCID: PMC7864169 DOI: 10.3390/cancers13030373] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/08/2021] [Accepted: 01/18/2021] [Indexed: 12/19/2022] Open
Abstract
The advancement of knowledge on tumor biology over the past decades has demonstrated a close link between tumor cells and cells of the immune system. In this context, cytokines have a major role because they act as intermediaries in the communication into the tumor bed. Cytokines play an important role in the homeostasis of innate and adaptive immunity. In particular, they participate in the differentiation of CD4 T lymphocytes. These cells play essential functions in the anti-tumor immune response but can also be corrupted by tumors. The differentiation of naïve CD4 T cells depends on the cytokine environment in which they are activated. Additionally, at the tumor site, their activity can also be modulated according to the cytokines of the tumor microenvironment. Thus, polarized CD4 T lymphocytes can see their phenotype evolve, demonstrating functional plasticity. Knowledge of the impact of these cytokines on the functions of CD4 T cells is currently a source of innovation, for therapeutic purposes. In this review, we discuss the impact of the major cytokines present in tumors on CD4 T cells. In addition, we summarize the main therapeutic strategies that can modulate the CD4 response through their impact on cytokine production.
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Affiliation(s)
- Théo Accogli
- Faculté des Sciences de Santé, Université Bourgogne Franche-Comté, 21000 Dijon, France; (T.A.); (M.B.)
- Team “CAdIR”, CRI INSERM UMR1231 “Lipids, Nutrition and Cancer”, Dijon 21000, France
- LipSTIC LabEx, 21000 Dijon, France
| | - Mélanie Bruchard
- Faculté des Sciences de Santé, Université Bourgogne Franche-Comté, 21000 Dijon, France; (T.A.); (M.B.)
- Team “CAdIR”, CRI INSERM UMR1231 “Lipids, Nutrition and Cancer”, Dijon 21000, France
- LipSTIC LabEx, 21000 Dijon, France
- Centre Georges François Leclerc, 21000 Dijon, France
| | - Frédérique Végran
- Faculté des Sciences de Santé, Université Bourgogne Franche-Comté, 21000 Dijon, France; (T.A.); (M.B.)
- Team “CAdIR”, CRI INSERM UMR1231 “Lipids, Nutrition and Cancer”, Dijon 21000, France
- LipSTIC LabEx, 21000 Dijon, France
- Centre Georges François Leclerc, 21000 Dijon, France
- Correspondence:
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Blagoev KB, Iordanov R, Zhou M, Fojo T, Bates SE. Drug resistant cells with very large proliferative potential grow exponentially in metastatic prostate cancer. Oncotarget 2021; 12:15-21. [PMID: 33456710 PMCID: PMC7800777 DOI: 10.18632/oncotarget.27855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 11/12/2020] [Indexed: 11/25/2022] Open
Abstract
Most metastatic cancers develop drug resistance during treatment and continue to grow, driven by a subpopulation of cancer cells unresponsive to the therapy being administered. There is evidence that metastases are formed by phenotypically plastic cancer cells with stem-cell like properties. Currently the population structure and growth dynamics of the resulting metastatic tumors is unknown. Here, using scaling analysis of clinical data of tumor burden in patients with metastatic prostate cancer, we show that the drug resistant, metastasis-causing cells (MCC) are capable of producing drug resistant, exponentially growing tumors, responsible for tumor growth as a patient receives different treatments.
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Affiliation(s)
- Krastan B Blagoev
- National Science Foundation, Alexandria, VA 22230, USA.,Department of Biophysics, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Roumen Iordanov
- Jackson Memorial Hospital, Department of Internal Medicine, Miami, FL 33136, USA
| | - Mengxi Zhou
- Department of Medicine, Division of Hematology/Oncology, Columbia University Medical Center, New York, NY 10032, USA.,James J. Peters Veterans Affairs Medical Center, Bronx, NY 10032, USA
| | - Tito Fojo
- Department of Medicine, Division of Hematology/Oncology, Columbia University Medical Center, New York, NY 10032, USA.,James J. Peters Veterans Affairs Medical Center, Bronx, NY 10032, USA
| | - Susan E Bates
- Department of Medicine, Division of Hematology/Oncology, Columbia University Medical Center, New York, NY 10032, USA.,James J. Peters Veterans Affairs Medical Center, Bronx, NY 10032, USA
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Förnvik K, Maddahi A, Liljedahl E, Osther K, Salford LG, Redebrandt HN. What is the role of CRP in glioblastoma? Cancer Treat Res Commun 2021; 26:100293. [PMID: 33385735 DOI: 10.1016/j.ctarc.2020.100293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/23/2020] [Accepted: 12/09/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Glioblastoma is the most common primary malignant brain tumor in adults. Previous studies have suggested that CRP (C-reactive protein) could serve as a biomarker candidate as well as a prognostic factor in glioblastoma patients, and we here further investigate its potential role. MATERIALS AND METHODS Publicly available datasets were used to compare gene expression between brain samples from glioblastoma patients and non-tumor tissue. The structure of CRP was compared between humans and rats. Glioblastoma cells from humans and rats were stained with anti-CRP. Fischer 344 rats were inoculated with syngeneic glioblastoma cells pre-coated with anti-CRP, and survival was monitored. CRP concentration in rats carrying glioblastoma was followed. RESULTS CRP was upregulated on one locus on gene level in glioblastoma tissue as compared to non-tumor brain tissue, but not in glioma stem cells as compared to neural stem cells. The structure of the CRP protein was a characteristic pentamer in both humans and rats. Both human and rat glioblastoma cells were clearly positive for anti-CRP staining. Pre-coating of glioblastoma cells with anti-CRP antibodies did not affect survival in rats with intracranial tumors. Serum levels of CRP increased during tumor progression but did not reach significantly different levels. CONCLUSIONS Both human and rat glioblastoma cells could be stained with anti-CRP antibodies in vitro. In a syngeneic glioblastoma rat model we could see an increase in serum CRP during tumor progression, but coating glioblastoma cells with anti-CRP antibodies did not provide any survival change for the animals.
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Affiliation(s)
- Karolina Förnvik
- The Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences, Lund, Lund University, Sweden; Department of Clinical Chemistry, Skåne University Hospital, Sweden
| | - Aida Maddahi
- The Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences, Lund, Lund University, Sweden
| | - Emma Liljedahl
- The Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences, Lund, Lund University, Sweden
| | - Kurt Osther
- The Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences, Lund, Lund University, Sweden
| | - Leif G Salford
- The Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences, Lund, Lund University, Sweden
| | - Henrietta Nittby Redebrandt
- The Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences, Lund, Lund University, Sweden; Department of Neurosurgery, Skåne University Hospital, Sweden.
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Interleukin-6 Function and Targeting in Prostate Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1290:1-8. [PMID: 33559852 DOI: 10.1007/978-3-030-55617-4_1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Interleukin-6 (IL-6) is a proinflammatory cytokine, which is involved in pathogenesis of several cancers. Its expression and function in prostate cancer have been extensively studied in cellular models and clinical specimens. High levels of IL-6 were detected in conditioned media from cells which do not respond to androgens. Increased phosphorylation of signal transducer and activator of transcription (STAT)3 factor which is induced in response to IL-6 is one of the typical features of prostate cancer. However, reports in the literature show regulation of neuroendocrine phenotype by IL-6. Effects of IL-6 on stimulation of proliferation, migration, and invasion lead to the establishment of experimental and clinical approaches to target IL-6. In prostate cancer, anti-IL-6 antibodies were demonstrated to inhibit growth in vitro and in vivo. Clinically, application of anti-IL-6 therapies did not improve survival of patients with metastatic prostate cancer. However, clinical trial design in the future may include different treatment schedule and combinations with experimental and clinical therapies. Endogenous inhibitors of IL-6 such as suppressors of cytokine signaling and protein inhibitors of activated STAT have variable effects on prostate cells, depending on presence or absence of the androgen receptor.
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Pro-Inflammatory Cytokines in the Formation of the Pre-Metastatic Niche. Cancers (Basel) 2020; 12:cancers12123752. [PMID: 33322216 PMCID: PMC7764404 DOI: 10.3390/cancers12123752] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022] Open
Abstract
Simple Summary The formation of the pre-metastatic niche, a favorable microenvironment in an organ distant from a primary tumor, is critical for tumor metastasis. We review the role of a key player, a class of proteins named pro-inflammatory cytokines secreted from both tumor cells and other cells in tissues, in helping to build the pre-metastatic niche. Various drugs have been developed to target pro-inflammatory cytokines, and their effects on tumor metastases are under investigation. Future clinical studies should focus on combining those drugs and applying them during cancer surgery, a critical moment for the establishment of the pre-metastatic niche. Abstract In the presence of a primary tumor, the pre-metastatic niche is established in secondary organs as a favorable microenvironment for subsequent tumor metastases. This process is orchestrated by bone marrow-derived cells, primary tumor-derived factors, and extracellular matrix. In this review, we summarize the role of pro-inflammatory cytokines including interleukin (IL)-6, IL-1β, CC-chemokine ligand 2 (CCL2), granulocyte-colony stimulating factor (G-CSF), granulocyte–macrophage colony-stimulating factor (GM-CSF), stromal cell-derived factor (SDF)-1, macrophage migration inhibitory factor (MIF), and Chemokine (C–X–C motif) ligand 1 (CXCL1) in the formation of the pre-metastatic niche according to the most recent studies. Pro-inflammatory cytokines released from tumor cells or stromal cells act in both autocrine and paracrine manners to induce phenotype changes in tumor cells, recruit bone marrow-derived cells, and form an inflammatory milieu, all of which prime a secondary organ’s microenvironment for metastatic cell colonization. Considering the active involvement of pro-inflammatory cytokines in niche formation, clinical strategies targeting them offer ways to inhibit the establishment of the pre-metastatic niche and therefore attenuate metastatic progression. We review clinical trials targeting different inflammatory cytokines in patients with metastatic cancers. Due to the pleiotropy and redundancy of pro-inflammatory cytokines, combined therapies should be designed in the future.
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Ahmed ME, Falasiri S, Hajiran A, Chahoud J, Spiess PE. The Immune Microenvironment in Penile Cancer and Rationale for Immunotherapy. J Clin Med 2020; 9:E3334. [PMID: 33080912 PMCID: PMC7603091 DOI: 10.3390/jcm9103334] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 02/07/2023] Open
Abstract
Penile cancer is an extremely rare malignancy that accounts for approximately 1% of cancer deaths in the United States every year. While primary penile cancer can be managed surgically, advanced and metastatic forms of the disease require more aggressive management plans with systemic chemotherapy and/or radiotherapy. Despite the meaningful response to systemic treatments, the 2-year progression-free survival and disease-specific survival have shown disappointing results. Therefore, there is a crucial need for alternative treatment options with more favorable outcomes and a lower toxicity profile. There are currently extensive studies of tumor molecular biology and clinical trials with targeted molecular therapies, such as PD-1, PD-L1, and CTLA-4. In this review, we will describe the penile cancer microenvironment, and summarize the rationale for immunotherapy in penile cancer patients.
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Affiliation(s)
| | - Shayan Falasiri
- Department of Urology, University of South Florida Morsani College of Medicine, Tampa, FL 33612, USA;
| | - Ali Hajiran
- Department of Genitourinary Oncology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA; (A.H.); (J.C.); (P.E.S.)
| | - Jad Chahoud
- Department of Genitourinary Oncology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA; (A.H.); (J.C.); (P.E.S.)
| | - Philippe E. Spiess
- Department of Genitourinary Oncology, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA; (A.H.); (J.C.); (P.E.S.)
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Dzobo K, Chiririwa H, Dandara C, Dzobo W. Coronavirus Disease-2019 Treatment Strategies Targeting Interleukin-6 Signaling and Herbal Medicine. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2020; 25:13-22. [PMID: 32857671 DOI: 10.1089/omi.2020.0122] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Coronavirus disease-2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is evolving across the world and new treatments are urgently needed as with vaccines to prevent the illness and stem the contagion. The virus affects not only the lungs but also other tissues, thus lending support to the idea that COVID-19 is a systemic disease. The current vaccine and treatment development strategies ought to consider such systems medicine perspectives rather than a narrower focus on the lung infection only. COVID-19 is associated with elevated levels of the inflammatory cytokines such as interleukin-6 (IL-6), IL-10, and interferon-gamma (IFN-γ). Elevated levels of cytokines and the cytokine storm have been linked to fatal disease. This suggests new therapeutic strategies through blocking the cytokine storm. IL-6 is one of the major cytokines associated with the cytokine storm. IL-6 is also known to display pleiotropic/diverse pathophysiological effects. We suggest the blockage of IL-6 signaling and its downstream mediators such as Janus kinases (JAKs), and signal transducer and activators of transcription (STATs) offer potential hope for the treatment of severe cases of COVID-19. Thus, repurposing of already approved IL-6-JAK-STAT signaling inhibitors as well as other anti-inflammatory drugs, including dexamethasone, is under development for severe COVID-19 cases. We conclude this expert review by highlighting the potential role of precision herbal medicines, for example, the Cannabis sativa, provided that omics technologies can be utilized to build a robust scientific evidence base on their clinical safety and efficacy. Precision herbal medicine buttressed by omics systems science would also help identify new molecular targets for drug discovery against COVID-19.
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Affiliation(s)
- Kevin Dzobo
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town, South Africa.,Division of Medical Biochemistry and Institute of Infectious Disease and Molecular Medicine, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Harry Chiririwa
- Department of Chemical Engineering, Vaal University of Technology, Vanderbijlpark, South Africa
| | - Collet Dandara
- Division of Human Genetics, Department of Pathology, Institute for Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Witness Dzobo
- Immunology Department, Pathology, University Hospital Southampton, Southampton, United Kingdom.,Faculty of Science, University of Portsmouth, Portsmouth, United Kingdom
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Application of Anti-Inflammatory Agents in Prostate Cancer. J Clin Med 2020; 9:jcm9082680. [PMID: 32824865 PMCID: PMC7464558 DOI: 10.3390/jcm9082680] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023] Open
Abstract
Chronic inflammation is a major cause of human cancers. The environmental factors, such as microbiome, dietary components, and obesity, provoke chronic inflammation in the prostate, which promotes cancer development and progression. Crosstalk between immune cells and cancer cells enhances the secretion of intercellular signaling molecules, such as cytokines and chemokines, thereby orchestrating the generation of inflammatory microenvironment. Tumor-associated macrophages (TAMs) and myeloid-derived suppressor cells (MDSCs) play pivotal roles in inflammation-associated cancer by inhibiting effective anti-tumor immunity. Anti-inflammatory agents, such as aspirin, metformin, and statins, have potential application in chemoprevention of prostate cancer. Furthermore, pro-inflammatory immunity-targeted therapies may provide novel strategies to treat patients with cancer. Thus, anti-inflammatory agents are expected to suppress the “vicious cycle” created by immune and cancer cells and inhibit cancer progression. This review has explored the immune cells that facilitate prostate cancer development and progression, with particular focus on the application of anti-inflammatory agents for both chemoprevention and therapeutic approach in prostate cancer.
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Seo HK, Lee SJ, Kwon WA, Jeong KC. Docetaxel-resistant prostate cancer cells become sensitive to gemcitabine due to the upregulation of ABCB1. Prostate 2020; 80:453-462. [PMID: 32134535 DOI: 10.1002/pros.23946] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 12/11/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Docetaxel is the preferred chemotherapeutic agent for hormone-refractory prostate cancer (PC) patients. However, patients eventually develop docetaxel resistance, and no effective treatment options are available for them. OBJECTIVE We aimed to establish docetaxel resistance in castration-resistant prostate cancer (CRPC) cell lines (DU145/TXR, PC-3/TXR, and CWR22/TXR) and characterized transcriptional changes upon acquiring resistance to the docetaxel. METHODS Human PC cells (DU145, PC-3, CWR22) and all docetaxel-resistant cells were maintained in Roswell Park Memorial Institute Medium (RPMI) 1640 media supplemented with 10% fetal bovine serum and 1% penicillin/streptomycin. ABCB1 was detected by using both parental and docetaxel-resistant CRPCs prepared for flow cytometry. For the evaluation of tumor-suppressive effects under each chemotherapeutic agent, subcutaneous xenografts of DU145 or DU145/TXR were implanted at the mouse flank. RESULTS The P-glycoprotein-encoding gene ABCB1 was distinctively upregulated in the resistant cells, and its overexpression played an essential role in docetaxel resistance in CRPC. When tested for the cytotoxicity of gemcitabine, another option for chemotherapy, the docetaxel-resistant cells were shown to become sensitive to the drug, implying additional phenotypic transformation in the docetaxel-resistant cells. Studies using xenograft animal models demonstrated that the growth of tumors composed of both docetaxel-sensitive and docetaxel-resistant cells was deterred most profoundly when docetaxel and gemcitabine were administered together. CONCLUSION This study suggests that when a drug develops therapeutic resistance, sensitivity tests could be another option, ultimately providing insight into a novel alternative clinical strategy.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B/biosynthesis
- ATP Binding Cassette Transporter, Subfamily B/genetics
- Animals
- Cell Cycle/drug effects
- Cell Growth Processes/drug effects
- Cell Line, Tumor
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/pharmacology
- Docetaxel/pharmacology
- Drug Resistance, Neoplasm/genetics
- Female
- Humans
- Male
- Mice
- Mice, Nude
- PC-3 Cells
- Prostatic Neoplasms, Castration-Resistant/drug therapy
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Prostatic Neoplasms, Castration-Resistant/pathology
- RNA, Small Interfering/administration & dosage
- RNA, Small Interfering/genetics
- Transcriptome
- Transfection
- Up-Regulation
- Xenograft Model Antitumor Assays
- Gemcitabine
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Affiliation(s)
- Ho Kyung Seo
- Department of Urology, Center for Urologic Cancer, Hospital Division of Tumor Immunology, Research Institute National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Sang-Jin Lee
- Department of Research Institute, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Whi-An Kwon
- Department of Urology, Myongji Hospital, Hanyang University College of Medicine, Goyang-si, Gyeonggi-do, Republic of Korea
| | - Kyung-Chae Jeong
- Department of Research Institute, National Cancer Center, Goyang-si, Gyeonggi-do, Republic of Korea
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Infectious Implications of Interleukin-1, Interleukin-6, and T Helper Type 2 Inhibition. Infect Dis Clin North Am 2020; 34:211-234. [PMID: 32334983 DOI: 10.1016/j.idc.2020.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Targeting interleukins that drive innate inflammation has expanded treatments of autoinflammatory and autoimmune disorders. Interleukin (IL)-1 inhibition has proven useful for monogenic autoinflammatory syndromes, and IL-6 inhibition for autoimmune arthritides. Biological therapies impeding these pathways impair detection and containment of pathogens, particularly invasive bacteria, reflecting the importance of IL-1 and IL-6 in communicating danger throughout the immune system. Biologics targeting T helper type 2 inflammation are used to treat specific allergic, atopic, and eosinophilic diseases. They may impair protections against local herpesvirus reactivations while augmenting antiviral responses to respiratory viruses. Their risks with helminth exposures have yet to be defined.
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47
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Cytokines and Janus kinase/signal transducer and activator of transcription signaling in prostate cancer: overview and therapeutic opportunities. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.coemr.2020.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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48
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Sanaei M, Salimzadeh L, Bagheri N. Crosstalk between myeloid‐derived suppressor cells and the immune system in prostate cancer. J Leukoc Biol 2019; 107:43-56. [DOI: 10.1002/jlb.4ru0819-150rr] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 09/23/2019] [Accepted: 10/05/2019] [Indexed: 12/11/2022] Open
Affiliation(s)
- Mohammad‐Javad Sanaei
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical Sciences Shahrekord Iran
| | - Loghman Salimzadeh
- Department of MedicineNational University of Singapore Singapore Singapore
| | - Nader Bagheri
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical Sciences Shahrekord Iran
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Polak KL, Chernosky NM, Smigiel JM, Tamagno I, Jackson MW. Balancing STAT Activity as a Therapeutic Strategy. Cancers (Basel) 2019; 11:cancers11111716. [PMID: 31684144 PMCID: PMC6895889 DOI: 10.3390/cancers11111716] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/23/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Driven by dysregulated IL-6 family member cytokine signaling in the tumor microenvironment (TME), aberrant signal transducer and activator of transcription (STAT3) and (STAT5) activation have been identified as key contributors to tumorigenesis. Following transformation, persistent STAT3 activation drives the emergence of mesenchymal/cancer-stem cell (CSC) properties, important determinants of metastatic potential and therapy failure. Moreover, STAT3 signaling within tumor-associated macrophages and neutrophils drives secretion of factors that facilitate metastasis and suppress immune cell function. Persistent STAT5 activation is responsible for cancer cell maintenance through suppression of apoptosis and tumor suppressor signaling. Furthermore, STAT5-mediated CD4+/CD25+ regulatory T cells (Tregs) have been implicated in suppression of immunosurveillance. We discuss these roles for STAT3 and STAT5, and weigh the attractiveness of different modes of targeting each cancer therapy. Moreover, we discuss how anti-tumorigenic STATs, including STAT1 and STAT2, may be leveraged to suppress the pro-tumorigenic functions of STAT3/STAT5 signaling.
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Affiliation(s)
- Kelsey L Polak
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Noah M Chernosky
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Jacob M Smigiel
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Ilaria Tamagno
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
| | - Mark W Jackson
- Department of Pathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
- Case Comprehensive Cancer Center, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
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50
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Pereira BA, Vennin C, Papanicolaou M, Chambers CR, Herrmann D, Morton JP, Cox TR, Timpson P. CAF Subpopulations: A New Reservoir of Stromal Targets in Pancreatic Cancer. Trends Cancer 2019; 5:724-741. [PMID: 31735290 DOI: 10.1016/j.trecan.2019.09.010] [Citation(s) in RCA: 188] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/16/2019] [Accepted: 09/26/2019] [Indexed: 02/06/2023]
Abstract
Cancer-associated fibroblasts (CAFs) are one of the most significant components in the tumour microenvironment (TME), where they can perform several protumourigenic functions. Several studies have recently reported that CAFs are more heterogenous and plastic than was previously thought. As such, there has been a shift in the field to study CAF subpopulations and the emergent functions of these subsets in tumourigenesis. In this review, we explore how different aspects of CAF heterogeneity are defined and how these manifest in multiple cancers, with a focus on pancreatic ductal adenocarcinoma (PDAC). We also discuss therapeutic approaches to selectively target protumourigenic CAF functions, while avoiding normal fibroblasts, providing insight into the future of stromal targeting for the treatment of PDAC and other solid tumours.
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Affiliation(s)
- Brooke A Pereira
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2010, Australia
| | - Claire Vennin
- Division of Molecular Pathology, Netherlands Cancer Institute (NKI), 1066 CX Amsterdam, The Netherlands
| | - Michael Papanicolaou
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia; School of Life Sciences, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Cecilia R Chambers
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2010, Australia
| | - David Herrmann
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2010, Australia
| | - Jennifer P Morton
- Cancer Department, Cancer Research UK Beatson Institute, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK
| | - Thomas R Cox
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2010, Australia.
| | - Paul Timpson
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, New South Wales 2010, Australia; St. Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2010, Australia.
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