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Evans ST, Jani Y, Jansen CS, Yildirim A, Kalemoglu E, Bilen MA. Understanding and overcoming resistance to immunotherapy in genitourinary cancers. Cancer Biol Ther 2024; 25:2342599. [PMID: 38629578 PMCID: PMC11028033 DOI: 10.1080/15384047.2024.2342599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024] Open
Abstract
The introduction of novel immunotherapies has significantly transformed the treatment landscape of genitourinary (GU) cancers, even becoming the standard of care in some settings. One such type of immunotherapy, immune checkpoint inhibitors (ICIs) like nivolumab, ipilimumab, pembrolizumab, and atezolizumab play a pivotal role by disturbing signaling pathways that limit the immune system's ability to fight tumor cells. Despite the profound impact of these treatments, not all tumors are responsive. Recent research efforts have been focused on understanding how cancer cells manage to evade the immune response and identifying the possible mechanisms behind resistance to immunotherapy. In response, ICIs are being combined with other treatments to reduce resistance and attack cancer cells through multiple cellular pathways. Additionally, novel, targeted strategies are currently being investigated to develop innovative methods of overcoming resistance and treatment failure. This article presents a comprehensive overview of the mechanisms of immunotherapy resistance in GU cancers as currently described in the literature. It explores studies that have identified genetic markers, cytokines, and proteins that may predict resistance or response to immunotherapy. Additionally, we review current efforts to overcome this resistance, which include combination ICIs and sequential therapies, novel insights into the host immune profile, and new targeted therapies. Various approaches that combine immunotherapy with chemotherapy, targeted therapy, vaccines, and radiation have been studied in an effort to more effectively overcome resistance to immunotherapy. While each of these combination therapies has shown some efficacy in clinical trials, a deeper understanding of the immune system's role underscores the potential of novel targeted therapies as a particularly promising area of current research. Currently, several targeted agents are in development, along with the identification of key immune mediators involved in immunotherapy resistance. Further research is necessary to identify predictors of response.
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Affiliation(s)
- Sean T Evans
- Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Yash Jani
- Undergraduate studies, Mercer University, Macon, GA, USA
| | - Caroline S Jansen
- Medical Scientist Training Program, Emory University School of Medicine, Atlanta, GA, USA
- Genitourinary Medical Oncology Program, Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA
| | - Ahmet Yildirim
- Genitourinary Medical Oncology Program, Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Ecem Kalemoglu
- Department of Biochemistry, Emory University School of Medicine, Atlanta, GA, USA
- Department of Basic Oncology, Health Institute of Ege University, Izmir, Turkey
| | - Mehmet Asim Bilen
- Genitourinary Medical Oncology Program, Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
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2
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Yuan Y, Wu D, Hou Y, Zhang Y, Tan C, Nie X, Zhao Z, Hou J. Wnt signaling: Modulating tumor-associated macrophages and related immunotherapeutic insights. Biochem Pharmacol 2024; 223:116154. [PMID: 38513742 DOI: 10.1016/j.bcp.2024.116154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/11/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
Wnt signaling pathways are highly conserved cascades that mediate multiple biological processes through canonical or noncanonical pathways, from embryonic development to tissue maintenance, but they also contribute to the pathogenesis of numerous cancers. Recent studies have revealed that Wnt signaling pathways critically control the interplay between cancer cells and tumor-associated macrophages (TAMs) in the tumor microenvironment (TME) and potentially impact the efficacy of cancer immunotherapy. In this review, we summarize the evidence that Wnt signaling pathways boost the maturation and infiltration of macrophages for immune surveillance in the steady state but also polarize TAMs toward immunosuppressive M2-like phenotypes for immune escape in the TME. Both cancer cells and TAMs utilize Wnt signaling to transmit signals, and this interaction is crucial for the carcinogenesis and progression of common solid cancers, such as colorectal, gastric, hepatocellular, breast, thyroid, prostate, kidney, and lung cancers; osteosarcoma; and glioma. Specifically, compared with those in solid cancers, Wnt signaling pathways play a distinct role in the pathogenesis of leukemia. Efforts to develop Wnt-based drugs for cancer treatment are still ongoing, and some indeed enhance the anticancer immune response. We believe that the combination of Wnt signaling-based therapy with conventional or immune therapies is a promising therapeutic approach and can facilitate personalized treatment for most cancers.
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Affiliation(s)
- Yimeng Yuan
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China
| | - Dapeng Wu
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China
| | - Yifan Hou
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China
| | - Yi Zhang
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China
| | - Cong Tan
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China
| | - Xiaobo Nie
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China; Henan Provincial Research Center for the Prevention and Diagnosis of Prostate Diseases, Henan University, Kaifeng, China.
| | - Zhenhua Zhao
- Key Laboratory of Receptors-Mediated Gene Regulation and Drug Discovery, School of Basic Medical Sciences and Department of Urinary Surgery, Huaihe Hospital, Henan University, Kaifeng, China; Henan Provincial Research Center for the Prevention and Diagnosis of Prostate Diseases, Henan University, Kaifeng, China.
| | - Junqing Hou
- Kaifeng 155 Hospital, China RongTong Medical Healthcare Group Co. Ltd., Kaifeng, China; Henan Provincial Research Center for the Prevention and Diagnosis of Prostate Diseases, Henan University, Kaifeng, China.
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Turnham DJ, Mullen MS, Bullock NP, Gilroy KL, Richards AE, Patel R, Quintela M, Meniel VS, Seaton G, Kynaston H, Clarkson RWE, Phesse TJ, Nelson PS, Haffner MC, Staffurth JN, Pearson HB. Development and Characterisation of a New Patient-Derived Xenograft Model of AR-Negative Metastatic Castration-Resistant Prostate Cancer. Cells 2024; 13:673. [PMID: 38667288 PMCID: PMC11049137 DOI: 10.3390/cells13080673] [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: 12/22/2023] [Revised: 03/26/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
As the treatment landscape for prostate cancer gradually evolves, the frequency of treatment-induced neuroendocrine prostate cancer (NEPC) and double-negative prostate cancer (DNPC) that is deficient for androgen receptor (AR) and neuroendocrine (NE) markers has increased. These prostate cancer subtypes are typically refractory to AR-directed therapies and exhibit poor clinical outcomes. Only a small range of NEPC/DNPC models exist, limiting our molecular understanding of this disease and hindering our ability to perform preclinical trials exploring novel therapies to treat NEPC/DNPC that are urgently needed in the clinic. Here, we report the development of the CU-PC01 PDX model that represents AR-negative mCRPC with PTEN/RB/PSMA loss and CTNN1B/TP53/BRCA2 genetic variants. The CU-PC01 model lacks classic NE markers, with only focal and/or weak expression of chromogranin A, INSM1 and CD56. Collectively, these findings are most consistent with a DNPC phenotype. Ex vivo and in vivo preclinical studies revealed that CU-PC01 PDX tumours are resistant to mCRPC standard-of-care treatments enzalutamide and docetaxel, mirroring the donor patient's treatment response. Furthermore, short-term CU-PC01 tumour explant cultures indicate this model is initially sensitive to PARP inhibition with olaparib. Thus, the CU-PC01 PDX model provides a valuable opportunity to study AR-negative mCRPC biology and to discover new treatment avenues for this hard-to-treat disease.
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Affiliation(s)
- Daniel J. Turnham
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Manisha S. Mullen
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Nicholas P. Bullock
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | | | - Anna E. Richards
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Radhika Patel
- Division of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
| | - Marcos Quintela
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Valerie S. Meniel
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Gillian Seaton
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Howard Kynaston
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
- Department of Urology, Cardiff and Vale University Health Board, University Hospital of Wales, Cardiff CF14 4XW, UK
| | - Richard W. E. Clarkson
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
| | - Toby J. Phesse
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
- The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC 3000, Australia
| | - Peter S. Nelson
- Division of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
- Department of Urology, University of Washington, Seattle, WA 98195, USA
- Department of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Michael C. Haffner
- Division of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - John N. Staffurth
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Helen B. Pearson
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Hadyn Ellis Building, Cardiff CF24 4HQ, UK
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Elaasser B, Arakil N, Mohammad KS. Bridging the Gap in Understanding Bone Metastasis: A Multifaceted Perspective. Int J Mol Sci 2024; 25:2846. [PMID: 38474093 DOI: 10.3390/ijms25052846] [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: 01/30/2024] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
The treatment of patients with advanced cancer poses clinical problems due to the complications that arise as the disease progresses. Bone metastases are a common problem that cancer patients may face, and currently, there are no effective drugs to treat these individuals. Prostate, breast, and lung cancers often spread to the bone, causing significant and disabling health conditions. The bone is a highly active and dynamic tissue and is considered a favorable environment for the growth of cancer. The role of osteoblasts and osteoclasts in the process of bone remodeling and the way in which their interactions change during the progression of metastasis is critical to understanding the pathophysiology of this disease. These interactions create a self-perpetuating loop that stimulates the growth of metastatic cells in the bone. The metabolic reprogramming of both cancer cells and cells in the bone microenvironment has serious implications for the development and progression of metastasis. Insight into the process of bone remodeling and the systemic elements that regulate this process, as well as the cellular changes that occur during the progression of bone metastases, is critical to the discovery of a cure for this disease. It is crucial to explore different therapeutic options that focus specifically on malignancy in the bone microenvironment in order to effectively treat this disease. This review will focus on the bone remodeling process and the effects of metabolic disorders as well as systemic factors like hormones and cytokines on the development of bone metastases. We will also examine the various therapeutic alternatives available today and the upcoming advances in novel treatments.
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Affiliation(s)
- Basant Elaasser
- Department of Anatomy, College of Medicine, Alfaisal University, Riyadh 1153, Saudi Arabia
| | - Nour Arakil
- Department of Anatomy, College of Medicine, Alfaisal University, Riyadh 1153, Saudi Arabia
| | - Khalid S Mohammad
- Department of Anatomy, College of Medicine, Alfaisal University, Riyadh 1153, Saudi Arabia
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Kazmi I, Altamimi ASA, Afzal M, Majami AA, AlGhamdi AS, Alkinani KB, Abbasi FA, Almalki WH, Alzera SI, Kukreti N, Fuloria NK, Sekar M, Abida. The emerging role of non-coding RNAs in the Wnt/β-catenin signaling pathway in Prostate Cancer. Pathol Res Pract 2024; 254:155134. [PMID: 38277746 DOI: 10.1016/j.prp.2024.155134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/28/2024]
Abstract
Prostate cancer (PCa) is an important worldwide medical concern, necessitating a greater understanding of the molecular processes driving its development. The Wnt/-catenin signaling cascade is established as a central player in PCa pathogenesis, and recent research emphasizes the critical involvement of non-coding RNAs (ncRNAs) in this scenario. This in-depth study seeks to give a thorough examination of the complex relationship between ncRNAs and the Wnt/β-catenin system in PCa. NcRNAs, such as circular RNAs (circRNAs), long ncRNAs (lncRNAs), and microRNAs (miRNAs), have been recognized as essential regulators that modulate numerous facets of the Wnt/β-catenin network. MiRNAs have been recognized as targeting vital elements of the process, either enhancing or inhibiting signaling, depending on their specific roles and targets. LncRNAs participate in fine-tuning the Wnt/β-catenin network as a result of complicated interplay with both upstream and downstream elements. CircRNAs, despite being a relatively recent addition to the ncRNA family, have been implicated in PCa, influencing the Wnt/β-catenin cascade through diverse mechanisms. This article encompasses recent advances in our comprehension of specific ncRNAs that participate in the Wnt/β-catenin network, their functional roles, and clinical relevance in PCa. We investigate their use as screening and predictive indicators, and targets for treatment. Additionally, we delve into the interplay between Wnt/β-catenin and other signaling networks in PCa and the role of ncRNAs within this complex network. As we unveil the intricate regulatory functions of ncRNAs in the Wnt/β-catenin cascade in PCa, we gain valuable insights into the disease's pathogenesis. The implementation of these discoveries in practical applications holds promise for more precise diagnosis, prognosis, and targeted therapeutic approaches, ultimately enhancing the care of PCa patients. This comprehensive review underscores the evolving landscape of ncRNA research in PCa and the potential for innovative interventions in the battle against this formidable malignancy.
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Affiliation(s)
- Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | | | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Abdullah A Majami
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Abeer S AlGhamdi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Khadijah B Alkinani
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia; Department of Public Health, Faculty of Health Sciences, Umm Al-Qura University, 21955 Makkah, Saudi Arabia
| | - Fahad Al Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Sami I Alzera
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia
| | - Neelima Kukreti
- School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India
| | | | - Mahendran Sekar
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Subang Jaya 47500, Selangor, Malaysia
| | - Abida
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia
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Jin H, Liu C, Liu X, Wang H, Zhang Y, Liu Y, Li J, Yu Z, Liu HX. Huaier suppresses cisplatin resistance in non-small cell lung cancer by inhibiting the JNK/JUN/IL-8 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117270. [PMID: 37832810 DOI: 10.1016/j.jep.2023.117270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/15/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Huaier (Trametes robiniophila Murr), a traditional Chinese medicinal fungus, possesses potent anticancer efficacy and has been used as an adjuvant medication for liver, breast, gastric, intestinal, and non-small cell lung cancer (NSCLC). However, the potential regulatory functions and underlying molecular mechanisms of Huaier in cisplatin resistance of NSCLC remain unknown. AIM To evaluate the potential regulatory functions and underlying molecular mechanisms of Huaier in cisplatin resistance of NSCLC. MATERIALS AND METHODS In vitro and in vivo experiments were employed to evaluate the regulatory functions of Huaier in cisplatin-resistant NSCLC cells. Transcriptome sequencing and validation analyses was undertaken to identify the downstream targets of Huaier. Network pharmacology, ultra-performance liquid chromatography-mass spectroscopy, and in vitro and in vivo experiments were performed to identify key small molecule drug candidates in Huaier and the regulatory mechanisms these employ to suppress cisplatin resistance in NSCLC. RESULTS Huaier suppressed cisplatin resistance and cancer cell stemness in cisplatin-resistant NSCLC cells, both in vitro and in vivo. Mechanistically, Huaier could suppress expression of interleuken-8 (IL-8) through inhibition of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and activator protein-1 (AP-1), two key transcription factors responsible for the activation of IL-8 transcription. Kaempferol was identified as one of the key small molecule compounds in Huaier that could suppress cisplatin resistance by inhibiting the phosphorylation and nuclear translocation of proto-oncogene c-Jun (JUN) by binding and inhibiting the kinase activity of c-Jun N-terminal protein kinase (JNK). CONCLUSIONS Huaier suppressed cisplatin resistance of NSCLC cells by inhibiting the JNK/JUN/IL-8 signaling pathway.
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Affiliation(s)
- Haoyi Jin
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Changhao Liu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Xi Liu
- Department of Urology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Huan Wang
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Yi Zhang
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Yu Liu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Jijia Li
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Zhanwu Yu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
| | - Hong-Xu Liu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110042, Liaoning, China.
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Hussain T, Alafnan A, Almazni IA, Helmi N, Moin A, Baeissa HM, Awadelkareem AM, Elkhalifa AO, Bakhsh T, Alzahrani A, Alghamdi RM, Khalid M, Tiwari RK, Rizvi SMD. Aloe-emodin exhibits growth-suppressive effects on androgen-independent human prostate cancer DU145 cells via inhibiting the Wnt/β-catenin signaling pathway: an in vitro and in silico study. Front Pharmacol 2024; 14:1325184. [PMID: 38348349 PMCID: PMC10859413 DOI: 10.3389/fphar.2023.1325184] [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: 10/20/2023] [Accepted: 12/28/2023] [Indexed: 02/15/2024] Open
Abstract
At the molecular level, several developmental signaling pathways, such as Wnt/β-catenin, have been associated with the initiation and subsequent progression of prostate carcinomas. The present report elucidated the anti-cancerous attributes of an anthraquinone, aloe-emodin (AE), against androgen-independent human prostate cancer DU145 cells. The cytotoxicity profiling of AE showed that it exerted significant cytotoxic effects and increased lactose dehydrogenase levels in DU145 cells (p < 0.01 and p < 0.001). AE also induced considerable reactive oxygen species (ROS)-mediated oxidative stress, which escalated at higher AE concentrations of 20 and 25 μM. AE also efficiently instigated nuclear fragmentation and condensation concomitantly, followed by the activation of caspase-3 and -9 within DU145 cells. AE further reduced the viability of mitochondria with increased cytosolic cytochrome-c levels (p < 0.01 and p < 0.001) in DU145 cells. Importantly, AE exposure was also correlated with reduced Wnt2 and β-catenin mRNA levels along with their target genes, including cyclin D1 and c-myc. Furthermore, the molecular mechanism of AE was evaluated by performing molecular docking studies with Wnt2 and β-catenin. Evidently, AE exhibited good binding energy scores toward Wnt2 and β-catenin comparable with their respective standards, CCT036477 (Wnt2 inhibitor) and FH535 (β-catenin inhibitor). Thus, it may be considered that AE was competent in exerting anti-growth effects against DU145 androgen-independent prostate cancer cells plausibly by modulating the expression of Wnt/β-catenin signaling.
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Affiliation(s)
- Talib Hussain
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Ha’il, Ha’il, Saudi Arabia
| | - Ahmed Alafnan
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Ha’il, Ha’il, Saudi Arabia
| | - Ibrahim Abdullah Almazni
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia
| | - Nawal Helmi
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Afrasim Moin
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il, Saudi Arabia
| | - Hanadi M. Baeissa
- Department of Biological Science, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Amir Mahgoub Awadelkareem
- Department of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Ha’il, Saudi Arabia
| | - AbdElmoneim O. Elkhalifa
- Department of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Ha’il, Saudi Arabia
| | - Tahani Bakhsh
- Department of Biological Science, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Abdulrahman Alzahrani
- Department of Applied Medical Sciences, Applied College, Al-Baha University, Al-Baha, Saudi Arabia
| | - Rashed Mohammed Alghamdi
- Department of Laboratory Medicine, Faculty of Applied College, Al-Baha University, Al-Baha, Saudi Arabia
| | - Mohammad Khalid
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Rohit Kumar Tiwari
- Department of Clinical Research, Sharda School of Allied Health Sciences, Sharda University, Gautam Buddh Nagar, India
| | - Syed Mohd Danish Rizvi
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il, Saudi Arabia
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Zhang W, Zhang K, Ma Y, Song Y, Qi T, Xiong G, Zhang Y, Kan C, Zhang J, Han F, Sun X. Secreted frizzled-related proteins: A promising therapeutic target for cancer therapy through Wnt signaling inhibition. Biomed Pharmacother 2023; 166:115344. [PMID: 37634472 DOI: 10.1016/j.biopha.2023.115344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/14/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023] Open
Abstract
The Wnt signaling system is a critical pathway that regulates embryonic development and adult homeostasis. Secreted frizzled-related proteins (SFRPs) are extracellular inhibitors of Wnt signaling that act by binding directly to Wnt ligands or Frizzled receptors. SFRPs can act as anti-Wnt agents and suppress cancer growth by blocking the action of Wnt ligands. However, SFRPs are often silenced by promoter methylation in cancer cells, resulting in hyperactivation of the Wnt pathway. Epigenetic modifiers can reverse this silencing and restore SFRPs expression. Despite the potential of SFRPs as a therapeutic target, the effects of SFRPs on tumor development remain unclear. Therefore, a review of the expression of various members of the SFRPs family in different cancers and their potential as therapeutic targets is warranted. This review aims to summarize the current knowledge of SFRPs in cancer, focusing on their expression patterns and their potential as novel therapeutic targets.
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Affiliation(s)
- Wenqiang Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Kexin Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Yanhui Ma
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Yixin Song
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Tongbing Qi
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Guoji Xiong
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Yuanzhu Zhang
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Chengxia Kan
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
| | - Jingwen Zhang
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China.
| | - Fang Han
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China.
| | - Xiaodong Sun
- Department of Endocrinology and Metabolism, Affiliated Hospital of Weifang Medical University, Weifang 261031, China; Clinical Research Center, Affiliated Hospital of Weifang Medical University, Weifang 261031, China.
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Bu T, Li L, Tian J. Unlocking the role of non-coding RNAs in prostate cancer progression: exploring the interplay with the Wnt signaling pathway. Front Pharmacol 2023; 14:1269233. [PMID: 37829301 PMCID: PMC10565042 DOI: 10.3389/fphar.2023.1269233] [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: 07/29/2023] [Accepted: 09/12/2023] [Indexed: 10/14/2023] Open
Abstract
Prostate cancer (PCa) is one of the most common cancers in males, exhibiting a wide spectrum of clinical manifestations that pose challenges in its diagnosis and treatment. The Wnt signaling pathway, a conserved and complex pathway, is crucial for embryonic development, tissue homeostasis, and various physiological processes. Apart from the classical Wnt/β-catenin signaling pathway, there exist multiple non-classical Wnt signaling pathways, including the Wnt/PCP and Wnt/Ca2+ pathways. Non-coding RNAs (ncRNAs) are involved in the occurrence and development of PCa and the response to PCa treatment. ncRNAs are known to execute diverse regulatory roles in cellular processes, despite their inability to encode proteins. Among them, microRNAs, long non-coding RNAs, and circular RNAs play key roles in the regulation of the Wnt signaling pathway in PCa. Aberrant expression of these ncRNAs and dysregulation of the Wnt signaling pathway are one of the causes of cell proliferation, apoptosis, invasion, migration, and angiogenesis in PCa. Moreover, these ncRNAs affect the characteristics of PCa cells and hold promise as diagnostic and prognostic biomarkers. Herein, we summarize the role of ncRNAs in the regulation of the Wnt signaling pathway during the development of PCa. Additionally, we present an overview of the current progress in research on the correlation between these molecules and clinical features of the disease to provide novel insights and strategies for the treatment of PCa.
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Affiliation(s)
| | | | - Jiyu Tian
- Department of Gastroenterology, The Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
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10
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Zapatero A, Conde Moreno AJ, Barrado Los Arcos M, Aldave D. Node Oligorecurrence in Prostate Cancer: A Challenge. Cancers (Basel) 2023; 15:4159. [PMID: 37627187 PMCID: PMC10453311 DOI: 10.3390/cancers15164159] [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: 06/07/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Within the oligometastatic state, oligorecurrent lymph node disease in prostate cancer represents an interesting clinical entity characterized by a relatively indolent biology that makes it unique: it can be treated radically, and its treatment is usually associated with a long period of control and excellent survival. Additionally, it is an emergent situation that we are facing more frequently mainly due to (a) the incorporation into clinical practice of the PSMA-PET that provides strikingly increased superior images in comparison to conventional imaging, with higher sensitivity and specificity; (b) the higher detection rates of bone and node disease with extremely low levels of PSA; and (c) the availability of high-precision technology in radiotherapy treatments with the incorporation of stereotaxic body radiotherapy (SBRT) or stereotaxic ablative radiotherapy (SABR) technology that allows the safe administration of high doses of radiation in a very limited number of fractions with low toxicity and excellent tolerance. This approach of new image-guided patient management is compelling for doctors and patients since it can potentially contribute to improving the clinical outcome. In this work, we discuss the available evidence, areas of debate, and potential future directions concerning the utilization of new imaging-guided SBRT for the treatment of nodal recurrence in prostate cancer.
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Affiliation(s)
- Almudena Zapatero
- Health Research Institute, University Hospital La Princesa, 28006 Madrid, Spain
| | | | | | - Diego Aldave
- University Clinical Hospital of Valladolid, 47003 Valladolid, Spain;
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11
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Koushyar S, Uysal-Onganer P, Jiang WG, Dart DA. Prohibitin Links Cell Cycle, Motility and Invasion in Prostate Cancer Cells. Int J Mol Sci 2023; 24:9919. [PMID: 37373067 PMCID: PMC10298516 DOI: 10.3390/ijms24129919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/22/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Prohibitin (PHB) is a tumour suppressor gene with several different molecular activities. PHB overexpression leads to G1/S-phase cell cycle arrest, and PHB represses the androgen receptor (AR) in prostate cancer cells. PHB interacts with and represses members of the E2F family in a manner that may also be AR-linked, therefore making the AR:PHB:E2F interaction axis highly complex. PHB siRNA increased the growth and metastatic potential of LNCaP mouse xenografts in vivo. Conversely, PHB ectopic cDNA overexpression affected several hundred genes in LNCaP cells. Furthermore, gene ontology analysis showed that in addition to cell cycle regulation, several members of the WNT family were significantly downregulated (WNT7B, WNT9A and WNT10B), as well as pathways for cell adhesion. Online GEO data studies showed PHB expression to be decreased in clinical cases of metastatic prostate cancer, and to be correlated with higher WNT expression in metastasis. PHB overexpression reduced prostate cancer cell migration and motility in wound-healing assays, reduced cell invasion through a Matrigel layer and reduced cellular attachment. In LNCaP cells, WNT7B, WNT9A and WNT10B expression were also upregulated by androgen treatment and downregulated by androgen antagonism, indicating a role for AR in the control of these WNT genes. However, these WNTs were strongly cell cycle regulated. E2F1 cDNA ectopic expression and PHB siRNA (both cell cycle promoting effects) increased WNT7B, WNT9A and WNT10B expression, and these genes were also upregulated as cells were released from G1 to S phase synchronisation, indicating further cell cycle regulation. Therefore, the repressive effects of PHB may inhibit AR, E2F and WNT expression and its loss may increase metastatic potential in human prostate cancer.
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Affiliation(s)
- Sarah Koushyar
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK
| | - Pinar Uysal-Onganer
- Cancer Mechanisms and Biomarkers Research Group, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK
| | - Wen Guo Jiang
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK
| | - Dafydd Alwyn Dart
- Cardiff China Medical Research Collaborative, School of Medicine, Cardiff University, Cardiff CF14 4YS, UK
- Institute of Medical and Biomedical Education, St George’s University of London, Cranmer Terrace, Tooting, London SW17 0RE, UK
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12
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Sutera P, Deek MP, Van der Eecken K, Shetty AC, Chang JH, Hodges T, Song Y, Verbeke S, Van Dorpe J, Fonteyne V, De Laere B, Mishra M, Rana Z, Molitoris J, Ferris M, Ross A, Schaeffer E, Roberts N, Song DY, DeWeese T, Pienta KJ, Antonarakis ES, Ost P, Tran PT. WNT Pathway Mutations in Metachronous Oligometastatic Castration-Sensitive Prostate Cancer. Int J Radiat Oncol Biol Phys 2023; 115:1095-1101. [PMID: 36708787 PMCID: PMC10443895 DOI: 10.1016/j.ijrobp.2022.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 01/28/2023]
Abstract
PURPOSE WNT signaling is a cellular pathway that has been implicated in the development and progression of prostate cancer. Oligometastatic castration-sensitive prostate cancer (omCSPC) represents a unique state of disease in which metastasis-directed therapy (MDT) has demonstrated improvement in progression-free survival. Herein, we investigate the clinical implications of genomic alterations in the WNT signaling cascade in men with omCSPC. METHODS AND MATERIALS We performed an international multi-institutional retrospective study of 277 men with metachronous omCSPC who underwent targeted DNA sequencing of their primary/metastatic tumor. Patients were classified by presence or absence of pathogenic WNT pathway mutations (in the genes APC, RNF43, and CTNNB1). Pearson χ2 and Mann-Whitney U tests were used to determine differences in clinical factors between genomic strata. Kaplan-Meier survival curves were generated for radiographic progression-free survival and overall survival, stratified according to WNT pathway mutation status. RESULTS A pathogenic WNT pathway mutation was detected in 11.2% of patients. Patients with WNT pathway mutations were more likely to have visceral metastases (22.6% vs 2.8%; P < .01) and less likely to have regional lymph node metastases (29.0% vs 50.4%; P = .02). At time of oligometastasis, these patients were treated with MDT alone (33.9%), MDT + limited course of systemic therapy (20.6%), systemic therapy alone (22.4%), or observation (defined as no treatment for ≥6 months after metastatic diagnosis). Multivariable cox regression demonstrated WNT pathway mutations associated with significantly worse overall survival (hazard ratio, 3.87; 95% confidence interval, 1.25-12.00). CONCLUSIONS Somatic WNT pathway alterations are present in approximately 11% of patients with omCSPC and are associated with an increased likelihood of visceral metastases. Although these patients have a worse natural history, they may benefit from MDT.
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Affiliation(s)
- Philip Sutera
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Matthew P Deek
- Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, New Jersey
| | - Kim Van der Eecken
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium; Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Amol C Shetty
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland; Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jin Hee Chang
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Theresa Hodges
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland; Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Yang Song
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland; Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Sofie Verbeke
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Jo Van Dorpe
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Valérie Fonteyne
- Department of Radiation Oncology, Ghent University Hospital, Ghent, Belgium
| | - Bram De Laere
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium; Department of Medical Epidemiology, Biostatistics Karolinska Institute, Stockholm, Sweden
| | - Mark Mishra
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Zaker Rana
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jason Molitoris
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Matthew Ferris
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Ashley Ross
- Department of Urology, Northwestern University, Chicago, Illinois
| | - Edward Schaeffer
- Department of Urology, Northwestern University, Chicago, Illinois
| | - Nicholas Roberts
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Daniel Y Song
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; James Buchanan Brady Urologic Institute, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Theodore DeWeese
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; James Buchanan Brady Urologic Institute, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Kenneth J Pienta
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; James Buchanan Brady Urologic Institute, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Emmanuel S Antonarakis
- Department of Medicine, University of Minnesota School of Medicine, Minneapolis, Minnesota
| | - Piet Ost
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium; Department of Radiation Oncology, Iridium Network, Antwerp, Belgium.
| | - Phuoc T Tran
- Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland.
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13
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Owen JS, Clayton A, Pearson HB. Cancer-Associated Fibroblast Heterogeneity, Activation and Function: Implications for Prostate Cancer. Biomolecules 2022; 13:67. [PMID: 36671452 PMCID: PMC9856041 DOI: 10.3390/biom13010067] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/19/2022] [Accepted: 12/27/2022] [Indexed: 01/01/2023] Open
Abstract
The continuous remodeling of the tumor microenvironment (TME) during prostate tumorigenesis is emerging as a critical event that facilitates cancer growth, progression and drug-resistance. Recent advances have identified extensive communication networks that enable tumor-stroma cross-talk, and emphasized the functional importance of diverse, heterogeneous stromal fibroblast populations during malignant growth. Cancer-associated fibroblasts (CAFs) are a vital component of the TME, which mediate key oncogenic events including angiogenesis, immunosuppression, metastatic progression and therapeutic resistance, thus presenting an attractive therapeutic target. Nevertheless, how fibroblast heterogeneity, recruitment, cell-of-origin and differential functions contribute to prostate cancer remains to be fully delineated. Developing our molecular understanding of these processes is fundamental to developing new therapies and biomarkers that can ultimately improve clinical outcomes. In this review, we explore the current challenges surrounding fibroblast identification, discuss new mechanistic insights into fibroblast functions during normal prostate tissue homeostasis and tumorigenesis, and illustrate the diverse nature of fibroblast recruitment and CAF generation. We also highlight the promise of CAF-targeted therapies for the treatment of prostate cancer.
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Affiliation(s)
- Jasmine S. Owen
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
| | - Aled Clayton
- Tissue Microenvironment Group, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, UK
| | - Helen B. Pearson
- The European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff CF24 4HQ, UK
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14
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Yang L, Yue W, Zhang H, Gao Y, Yang L, Li L. The role of roof plate-specific spondins in liver homeostasis and disease. LIVER RESEARCH 2022. [DOI: 10.1016/j.livres.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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15
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Advances in the Current Understanding of the Mechanisms Governing the Acquisition of Castration-Resistant Prostate Cancer. Cancers (Basel) 2022; 14:cancers14153744. [PMID: 35954408 PMCID: PMC9367587 DOI: 10.3390/cancers14153744] [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] [Received: 07/07/2022] [Accepted: 07/29/2022] [Indexed: 11/17/2022] Open
Abstract
Despite aggressive treatment and androgen-deprivation therapy, most prostate cancer patients ultimately develop castration-resistant prostate cancer (CRPC), which is associated with high mortality rates. However, the mechanisms governing the development of CRPC are poorly understood, and androgen receptor (AR) signaling has been shown to be important in CRPC through AR gene mutations, gene overexpression, co-regulatory factors, AR shear variants, and androgen resynthesis. A growing number of non-AR pathways have also been shown to influence the CRPC progression, including the Wnt and Hh pathways. Moreover, non-coding RNAs have been identified as important regulators of the CRPC pathogenesis. The present review provides an overview of the relevant literature pertaining to the mechanisms governing the molecular acquisition of castration resistance in prostate cancer, providing a foundation for future, targeted therapeutic efforts.
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