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Peng R, Ma X, Jiang Z, Duan Y, Lv S, Jing W. Integrative analysis of Anoikis-related genes reveals that FASN is a novel prognostic biomarker and promotes the malignancy of bladder cancer via Wnt/β-catenin pathway. Heliyon 2024; 10:e34029. [PMID: 39071712 PMCID: PMC11283158 DOI: 10.1016/j.heliyon.2024.e34029] [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] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
Bladder cancer (BC) exhibits diversity in clinical outcomes and is characterized by heterogeneity. Anoikis, a form of programmed cell death, plays a crucial role in facilitating tumor invasion and metastasis. This study comprehensively investigated the genetic landscape of BC progression, identifying 300 differentially expressed Anoikis-related genes (DE-ARGs) through in-depth analysis of the GSE13507 datasets. Functional enrichment analysis revealed associations with diverse diseases and biological processes. Employing machine learning algorithms, a logistic regression model based on nine marker genes demonstrated superior accuracy in distinguishing BC from normal samples. Validation in TCGA datasets highlighted the prognostic significance of LRP1, FASN, and SIRT6, suggesting their potential as cancer biomarkers. Particularly, FASN emerged as an independent prognostic indicator, regulating BC cell proliferation and metastasis through the Wnt/β-catenin pathway. The study provides crucial insights into altered genetic landscapes and potential therapeutic strategies for BC, emphasizing the significance of FASN in BC prognosis and progression.
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Affiliation(s)
- Ruoyu Peng
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Key Laboratory of Laboratory Medicine of Henan, Zhengzhou, 450000, China
| | - Xiaohan Ma
- Department of Laboratory Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou Key Laboratory for In Vitro Diagnosis of Hypertensive Disorders of Pregnancy, Zhengzhou, 450000, China
| | - Zhiyun Jiang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Key Laboratory of Laboratory Medicine of Henan, Zhengzhou, 450000, China
| | - Yu Duan
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Key Laboratory of Laboratory Medicine of Henan, Zhengzhou, 450000, China
| | - Shaogang Lv
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Key Laboratory of Laboratory Medicine of Henan, Zhengzhou, 450000, China
| | - Wei Jing
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Key Laboratory of Laboratory Medicine of Henan, Zhengzhou, 450000, China
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2
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Florance I, Cordani M, Pashootan P, Moosavi MA, Zarrabi A, Chandrasekaran N. The impact of nanomaterials on autophagy across health and disease conditions. Cell Mol Life Sci 2024; 81:184. [PMID: 38630152 PMCID: PMC11024050 DOI: 10.1007/s00018-024-05199-y] [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: 11/02/2023] [Revised: 03/01/2024] [Accepted: 03/03/2024] [Indexed: 04/19/2024]
Abstract
Autophagy, a catabolic process integral to cellular homeostasis, is constitutively active under physiological and stress conditions. The role of autophagy as a cellular defense response becomes particularly evident upon exposure to nanomaterials (NMs), especially environmental nanoparticles (NPs) and nanoplastics (nPs). This has positioned autophagy modulation at the forefront of nanotechnology-based therapeutic interventions. While NMs can exploit autophagy to enhance therapeutic outcomes, they can also trigger it as a pro-survival response against NP-induced toxicity. Conversely, a heightened autophagy response may also lead to regulated cell death (RCD), in particular autophagic cell death, upon NP exposure. Thus, the relationship between NMs and autophagy exhibits a dual nature with therapeutic and environmental interventions. Recognizing and decoding these intricate patterns are essential for pioneering next-generation autophagy-regulating NMs. This review delves into the present-day therapeutic potential of autophagy-modulating NMs, shedding light on their status in clinical trials, intervention of autophagy in the therapeutic applications of NMs, discusses the potency of autophagy for application as early indicator of NM toxicity.
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Affiliation(s)
- Ida Florance
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Marco Cordani
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, Complutense University of Madrid, 28040, Madrid, Spain.
- Instituto de Investigaciones Sanitarias San Carlos (IdISSC), 28040, Madrid, Spain.
| | - Parya Pashootan
- Department of Molecular Medicine, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, P.O Box 14965/161, Tehran, Iran
| | - Mohammad Amin Moosavi
- Department of Molecular Medicine, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, P.O Box 14965/161, Tehran, Iran
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul, 34396, Turkey
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600 077, India
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Taoyuan, Taiwan
| | - Natarajan Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
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3
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Zhang X, Zhang M, Cui H, Zhang T, Wu L, Xu C, Yin C, Gao J. Autophagy-modulating biomembrane nanostructures: A robust anticancer weapon by modulating the inner and outer cancer environment. J Control Release 2024; 366:85-103. [PMID: 38142964 DOI: 10.1016/j.jconrel.2023.12.032] [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: 08/21/2023] [Revised: 11/09/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Recently, biomembrane nanostructures, such as liposomes, cell membrane-coated nanostructures, and exosomes, have demonstrated promising anticancer therapeutic effects. These nanostructures possess remarkable biocompatibility, multifunctionality, and low toxicity. However, their therapeutic efficacy is impeded by chemoresistance and radiotherapy resistance, which are closely associated with autophagy. Modulating autophagy could enhance the therapeutic sensitivity and effectiveness of these biomembrane nanostructures by influencing the immune system and the cancer microenvironment. For instance, autophagy can regulate the immunogenic cell death of cancer cells, antigen presentation of dendritic cells, and macrophage polarization, thereby activating the inflammatory response in the cancer microenvironment. Furthermore, combining autophagy-regulating drugs or genes with biomembrane nanostructures can exploit the targeting and long-term circulation properties of these nanostructures, leading to increased drug accumulation in cancer cells. This review explores the role of autophagy in carcinogenesis, cancer progression, metastasis, cancer immune responses, and resistance to treatment. Additionally, it highlights recent research advancements in the synergistic anticancer effects achieved through autophagy regulation by biomembrane nanostructures. The review also discusses the prospects and challenges associated with the future clinical translation of these innovative treatment strategies. In summary, these findings provide valuable insights into autophagy, autophagy-modulating biomembrane-based nanostructures, and the underlying molecular mechanisms, thereby facilitating the development of promising cancer therapeutics.
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Affiliation(s)
- Xinyi Zhang
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai 200433, China.
| | - Mengya Zhang
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai 200433, China.
| | - Hengqing Cui
- Department of Burns and Plastic Surgery, Shanghai Changzheng Hospital, Shanghai 200003, China; Tongji Hospital,School of Medicine, Tongji University, Shanghai 200092, China
| | - Tinglin Zhang
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai 200433, China.
| | - Lili Wu
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai 200433, China.
| | - Can Xu
- Department of Gastroenterology, Shanghai Changhai Hospital, Naval Medical University, Shanghai 200433, China.
| | - Chuan Yin
- Department of Gastroenterology, Shanghai Changzheng Hospital, Naval Medical University, Shanghai 200003, China.
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai 200433, China.
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Khan SU, Fatima K, Malik F, Kalkavan H, Wani A. Cancer metastasis: Molecular mechanisms and clinical perspectives. Pharmacol Ther 2023; 250:108522. [PMID: 37661054 DOI: 10.1016/j.pharmthera.2023.108522] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/22/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Metastatic progression combined with non-responsiveness towards systemic therapy often shapes the course of disease for cancer patients and commonly determines its lethal outcome. The complex molecular events that promote metastasis are a combination of both, the acquired pro-metastatic properties of cancer cells and a metastasis-permissive or -supportive tumor micro-environment (TME). Yet, dissemination is a challenging process for cancer cells that requires a series of events to enable cancer cell survival and growth. Metastatic cancer cells have to initially detach themselves from primary tumors, overcome the challenges of their intravasal journey and colonize distant sites that are suited for their metastases. The implicated obstacles including anoikis and immune surveillance, can be overcome by intricate intra- and extracellular signaling pathways, which we will summarize and discuss in this review. Further, emerging modulators of metastasis, like the immune-microenvironment, microbiome, sublethal cell death engagement, or the nervous system will be integrated into the existing working model of metastasis.
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Affiliation(s)
- Sameer Ullah Khan
- The University of Texas MD Anderson Cancer Center, Division of Genitourinary Medical Oncology, Holcombe Blvd, Houston, TX 77030, USA; Division of Cancer Pharmacology, CSIR-Indian Institute of Integrative Medicine, Jammu and Kashmir, India
| | - Kaneez Fatima
- Division of Cancer Pharmacology, CSIR-Indian Institute of Integrative Medicine, Jammu and Kashmir, India; Academy of Scientific and Innovative Research (ASIR), Ghaziabad 201002, India
| | - Fayaz Malik
- Division of Cancer Pharmacology, CSIR-Indian Institute of Integrative Medicine, Jammu and Kashmir, India; Academy of Scientific and Innovative Research (ASIR), Ghaziabad 201002, India.
| | - Halime Kalkavan
- Department of Medical Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany; German Cancer Consortium (DKTK), Partner Site University Hospital Essen, Essen, Germany.
| | - Abubakar Wani
- St. Jude Children's Research Hospital, 262 Danny Thomas Pl, Memphis, TN 38105, United States.
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5
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Zhang T, Zhang Q, Yu WC. Mammalian Ste20-like kinase 1 inhibition as a cellular mediator of anoikis in mouse bone marrow mesenchymal stem cells. World J Stem Cells 2023; 15:90-104. [PMID: 37007455 PMCID: PMC10052341 DOI: 10.4252/wjsc.v15.i3.90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 01/06/2023] [Accepted: 02/16/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND The low survival rate of mesenchymal stem cells (MSCs) caused by anoikis, a form of apoptosis, limits the therapeutic efficacy of MSCs. As a proapoptotic molecule, mammalian Ste20-like kinase 1 (Mst1) can increase the production of reactive oxygen species (ROS), thereby promoting anoikis. Recently, we found that Mst1 inhibition could protect mouse bone marrow MSCs (mBMSCs) from H2O2-induced cell apoptosis by inducing autophagy and reducing ROS production. However, the influence of Mst1 inhibition on anoikis in mBMSCs remains unclear.
AIM To investigate the mechanisms by which Mst1 inhibition acts on anoikis in isolated mBMSCs.
METHODS Poly-2-hydroxyethyl methacrylate-induced anoikis was used following the silencing of Mst1 expression by short hairpin RNA (shRNA) adenovirus transfection. Integrin (ITGs) were tested by flow cytometry. Autophagy and ITGα5β1 were inhibited using 3-methyladenine and small interfering RNA, respectively. The alterations in anoikis were measured by Terminal-deoxynucleoitidyl Transferase Mediated Nick End Labeling and anoikis assays. The levels of the anoikis-related proteins ITGα5, ITGβ1, and phospho-focal adhesion kinase and the activation of caspase 3 and the autophagy-related proteins microtubules associated protein 1 light chain 3 II/I, Beclin1 and p62 were detected by Western blotting.
RESULTS In isolated mBMSCs, Mst1 expression was upregulated, and Mst1 inhibition significantly reduced cell apoptosis, induced autophagy and decreased ROS levels. Mechanistically, we found that Mst1 inhibition could upregulate ITGα5 and ITGβ1 expression but not ITGα4, ITGαv, or ITGβ3 expression. Moreover, autophagy induced by upregulated ITGα5β1 expression following Mst1 inhibition played an essential role in the protective efficacy of Mst1 inhibition in averting anoikis.
CONCLUSION Mst1 inhibition ameliorated autophagy formation, increased ITGα5β1 expression, and decreased the excessive production of ROS, thereby reducing cell apoptosis in isolated mBMSCs. Based on these results, Mst1 inhibition may provide a promising strategy to overcome anoikis of implanted MSCs.
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Affiliation(s)
- Tao Zhang
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250062, Shandong Province, China
| | - Qian Zhang
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250062, Shandong Province, China
| | - Wan-Cheng Yu
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250062, Shandong Province, China
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Negi S, Chaudhuri A, Kumar DN, Dehari D, Singh S, Agrawal AK. Nanotherapeutics in autophagy: a paradigm shift in cancer treatment. Drug Deliv Transl Res 2022; 12:2589-2612. [PMID: 35149969 DOI: 10.1007/s13346-022-01125-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2022] [Indexed: 12/15/2022]
Abstract
Autophagy is a catabolic process in which an organism responds to its nutrient or metabolic emergencies. It involves the degradation of cytoplasmic proteins and organelles by forming double-membrane vesicles called "autophagosomes." They sequester cargoes, leading them to degradation in the lysosomes. Although autophagy acts as a protective mechanism for maintaining homeostasis through cellular recycling, it is ostensibly a cause of certain cancers, but a cure for others. In other words, insufficient autophagy, due to genetic or cellular dysfunctions, can lead to tumorigenesis. However, many autophagy modulators are developed for cancer therapy. Diverse nanoparticles have been documented to induce autophagy. Also, the highly stable nanoparticles show blockage to autophagic flux. In this review, we revealed a general mechanism by which autophagy can be induced or blocked via nanoparticles as well as several studies recently performed to prove the stated fact. In addition, we have also elucidated the paradoxical roles of autophagy in cancer and how their differential role at different stages of various cancers can affect its treatment outcomes. And finally, we summarize the breakthroughs in cancer disease treatments by using metallic, polymeric, and liposomal nanoparticles as potent autophagy modulators.
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Affiliation(s)
- Shloka Negi
- Department of Pharmaceutical Eng. & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India
| | - Aiswarya Chaudhuri
- Department of Pharmaceutical Eng. & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India
| | - Dulla Naveen Kumar
- Department of Pharmaceutical Eng. & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India
| | - Deepa Dehari
- Department of Pharmaceutical Eng. & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India
| | - Sanjay Singh
- Department of Pharmaceutical Eng. & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India
| | - Ashish Kumar Agrawal
- Department of Pharmaceutical Eng. & Technology, Indian Institute of Technology (BHU), Varanasi, 221005, UP, India.
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7
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Nrf2 Modulation in Breast Cancer. Biomedicines 2022; 10:biomedicines10102668. [PMID: 36289931 PMCID: PMC9599257 DOI: 10.3390/biomedicines10102668] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/05/2022] [Accepted: 10/19/2022] [Indexed: 12/05/2022] Open
Abstract
Reactive oxygen species (ROS) are identified to control the expression and activity of various essential signaling intermediates involved in cellular proliferation, apoptosis, and differentiation. Indeed, ROS represents a double-edged sword in supporting cell survival and death. Many common pathological processes, including various cancer types and neurodegenerative diseases, are inflammation and oxidative stress triggers, or even initiate them. Keap1-Nrf2 is a master antioxidant pathway in cytoprotective mechanisms through Nrf2 target gene expression. Activation of the Nfr2 pathway benefits cells in the early stages and reduces the level of ROS. In contrast, hyperactivation of Keap1-Nrf2 creates a context that supports the survival of both healthy and cancerous cells, defending them against oxidative stress, chemotherapeutic drugs, and radiotherapy. Considering the dual role of Nrf2 in suppressing or expanding cancer cells, determining its inhibitory/stimulatory position and targeting can represent an impressive role in cancer treatment. This review focused on Nrf2 modulators and their roles in sensitizing breast cancer cells to chemo/radiotherapy agents.
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8
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Autophagy and EMT in cancer and metastasis: Who controls whom? Biochim Biophys Acta Mol Basis Dis 2022; 1868:166431. [PMID: 35533903 DOI: 10.1016/j.bbadis.2022.166431] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/10/2022] [Accepted: 05/02/2022] [Indexed: 02/06/2023]
Abstract
Metastasis consists of hallmark events, including Epithelial-Mesenchymal Transition (EMT), angiogenesis, initiation of inflammatory tumor microenvironment, and malfunctions in apoptosis. Autophagy is known to play a pivotal role in the metastatic process. Autophagy has pulled researchers towards it in recent times because of its dual role in the maintenance of cancer cells. Evidence states that cells undergoing EMT need autophagy in order to survive during migration and dissemination. Additionally, it orchestrates EMT markers in certain cancers. On the other side of the coin, autophagy plays an oncosuppressive role in impeding early metastasis. This review aims to project the interrelationship between autophagy and EMT. Targeting EMT via autophagy as a useful strategy is discussed in this review. Furthermore, for the first time, we have covered the possible reciprocating roles of EMT and autophagy and its consequences in cancer metastasis.
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9
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Shi T, Zhang C, Xia S. The potential roles and mechanisms of non-coding RNAs in cancer anoikis resistance. Mol Cell Biochem 2022; 477:1371-1380. [PMID: 35142950 DOI: 10.1007/s11010-022-04384-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 02/01/2022] [Indexed: 11/29/2022]
Abstract
Increasing evidence indicates that anoikis resistance is a critical process for metastasis of cancer cells, making it the attractive therapeutic target for cancer benefit. Anoikis resistance is widely regulated by various factors, such as signaling pathways, integrins switch, and non-coding RNAs (ncRNAs). ncRNAs composed of microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), are frequently dysregulated in a variety of human malignancies and are closely related to anoikis resistance of cancer cells. Based on the available literature, we reviewed the molecular basis underlying ncRNAs modulating cancer cells anoikis resistance, which may contribute to a better understanding of cancer metastasis and provide new beneficial therapeutic strategies against cancer.
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Affiliation(s)
- Tongguo Shi
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, China.
| | - Chuanqiang Zhang
- Department of General Surgery, The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, 1399 West Shichang Road, Suzhou, China
| | - Suhua Xia
- Department of Oncology, The First Affiliated Hospital of Soochow University, 188 Shizi Road, Suzhou, China.
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10
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Interplay of autophagy and cancer stem cells in hepatocellular carcinoma. Mol Biol Rep 2021; 48:3695-3717. [PMID: 33893928 DOI: 10.1007/s11033-021-06334-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 04/02/2021] [Indexed: 12/22/2022]
Abstract
Liver cancer is the sixth most common cancer and the fourth leading cause of cancer deaths in the world. The most common type of liver cancers is hepatocellular carcinoma (HCC). Autophagy is the cellular digestion of harmful components by sequestering the waste products into autophagosomes followed by lysosomal degradation for the maintenance of cellular homeostasis. The impairment of autophagy is highly associated with the development and progression of HCC although autophagy may be involved in tumour-suppressing cellular events. In regards to its protecting role, autophagy also shelters the cells from anoikis- a programmed cell death in anchorage-dependent cells detached from the surrounding extracellular matrix which facilitates metastasis in HCC. Liver cancer stem cells (LCSCs) have the ability for self-renewal and differentiation and are associated with the development and progression of HCC by regulating stemness, resistance and angiogenesis. Interestingly, autophagy is also known to regulate normal stem cells by promoting cellular survival and differentiation and maintaining cellular homeostasis. In this review, we discuss the basal autophagic mechanisms and double-faceted roles of autophagy as both tumour suppressor and tumour promoter in HCC, as well as its association with and contribution to self-renewal and differentiation of LCSCs.
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11
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Chandra A, Rick J, Yagnik G, Aghi MK. Autophagy as a mechanism for anti-angiogenic therapy resistance. Semin Cancer Biol 2020; 66:75-88. [PMID: 31472232 PMCID: PMC7047534 DOI: 10.1016/j.semcancer.2019.08.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 08/27/2019] [Indexed: 02/07/2023]
Abstract
Autophagy is a lysosomal-dependent degradation process that is highly conserved and maintains cellular homeostasis by sequestering cytosolic material for degradation either non-specifically by non-selective autophagy, or targeting specific proteins aggregates by selective autophagy. Autophagy serves as a protective mechanism defending the cell from stressors and also plays an important role in enabling tumor cells to overcome harsh conditions arising in their microenvironment during growth as well as oxidative and non-oxidative injuries secondary to therapeutic stressors. Recently, autophagy has been implicated to cause tumor resistance to anti-angiogenic therapy, joining an existing literature implicating autophagy in cancer resistance to conventional DNA damaging chemotherapy and ionizing radiation. In this review, we discuss the role of angiogenesis in malignancy, mechanisms of resistance to anti-angiogenic therapy in general, the role of autophagy in driving malignancy, and the current literature in autophagy-mediated anti-angiogenic therapy resistance. Finally, we provide future insight into the current challenges of using autophagy inhibitors in the clinic and provides tips for future studies to focus on to effectively target autophagy in overcoming resistance to anti-angiogenic therapy.
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Affiliation(s)
- Ankush Chandra
- Department of Neurological Surgery, University of California at San Francisco, San Francisco, CA, United States of America (USA); School of Medicine, Wayne State University, Detroit, MI, United States of America (USA).
| | - Jonathan Rick
- Department of Neurological Surgery, University of California at San Francisco, San Francisco, CA, United States of America (USA).
| | - Garima Yagnik
- Department of Neurological Surgery, University of California at San Francisco, San Francisco, CA, United States of America (USA).
| | - Manish K Aghi
- Department of Neurological Surgery, University of California at San Francisco, San Francisco, CA, United States of America (USA).
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12
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Chavez-Dominguez R, Perez-Medina M, Lopez-Gonzalez JS, Galicia-Velasco M, Aguilar-Cazares D. The Double-Edge Sword of Autophagy in Cancer: From Tumor Suppression to Pro-tumor Activity. Front Oncol 2020; 10:578418. [PMID: 33117715 PMCID: PMC7575731 DOI: 10.3389/fonc.2020.578418] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/07/2020] [Indexed: 12/15/2022] Open
Abstract
During tumorigenesis, cancer cells are exposed to a wide variety of intrinsic and extrinsic stresses that challenge homeostasis and growth. Cancer cells display activation of distinct mechanisms for adaptation and growth even in the presence of stress. Autophagy is a catabolic mechanism that aides in the degradation of damaged intracellular material and metabolite recycling. This activity helps meet metabolic needs during nutrient deprivation, genotoxic stress, growth factor withdrawal and hypoxia. However, autophagy plays a paradoxical role in tumorigenesis, depending on the stage of tumor development. Early in tumorigenesis, autophagy is a tumor suppressor via degradation of potentially oncogenic molecules. However, in advanced stages, autophagy promotes the survival of tumor cells by ameliorating stress in the microenvironment. These roles of autophagy are intricate due to their interconnection with other distinct cellular pathways. In this review, we present a broad view of the participation of autophagy in distinct phases of tumor development. Moreover, autophagy participation in important cellular processes such as cell death, metabolic reprogramming, metastasis, immune evasion and treatment resistance that all contribute to tumor development, is reviewed. Finally, the contribution of the hypoxic and nutrient deficient tumor microenvironment in regulation of autophagy and these hallmarks for the development of more aggressive tumors is discussed.
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Affiliation(s)
- Rodolfo Chavez-Dominguez
- Departamento de Enfermedades Cronico-Degenerativas, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosio Villegas", Mexico City, Mexico.,Posgrado en Ciencias Biologicas, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico
| | - Mario Perez-Medina
- Departamento de Enfermedades Cronico-Degenerativas, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosio Villegas", Mexico City, Mexico.,Laboratorio de Quimioterapia Experimental, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Jose S Lopez-Gonzalez
- Departamento de Enfermedades Cronico-Degenerativas, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosio Villegas", Mexico City, Mexico
| | - Miriam Galicia-Velasco
- Departamento de Enfermedades Cronico-Degenerativas, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosio Villegas", Mexico City, Mexico
| | - Dolores Aguilar-Cazares
- Departamento de Enfermedades Cronico-Degenerativas, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosio Villegas", Mexico City, Mexico
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13
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Chen M, Liu LX. MiR-525-5p Repressed Metastasis and Anoikis Resistance in Cervical Cancer via Blocking UBE2C/ZEB1/2 Signal Axis. Dig Dis Sci 2020; 65:2442-2451. [PMID: 31679088 DOI: 10.1007/s10620-019-05916-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/22/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Accumulating evidence indicated that miRNAs are important regulators involved in cancer biology. AIMS We aimed to investigate the biological functions and potentially underlying molecular mechanism of miR-525-5p in CC. METHODS RT-PCR and Western blot assay were performed to detect mRNA and protein expression. Cell proliferation, anoikis resistance, and cell invasion were analyzed. RESULTS We observed that the expression of miR-525-5p was declined in several CC cell lines. Additionally, introduction of miR-525-5p dramatically hampered cell viability, invasiveness, and migration ability through modulating epithelial-to-mesenchymal transition (EMT) marked genes as reflected by the upregulation of E-cadherin, as well as the downregulation of vimentin and N-cadherin. Furthermore, administration of miR-525-5p markedly reduced anchorage-independent growth and anoikis resistance accompanied by a decrease in the expression of anti-apoptotic protein Bcl-2 and an increase in the expression of pro-apoptotic protein Bax, C-caspase 3, and C-PARP1. Most importantly, analysis using publicly available algorithms predicted that UBE2C was a direct and functional target of miR-525-5p. Luciferase assays coupled with RT-PCR and Western blot analysis further verified that miR-525-5p negatively regulated UBE2C expression. Interestingly, miR-525-5p modulated ZEB1/2 expression via targeting UBE2C. Mechanically, administration of UBE2C partially blunted the salutary effects of miR-525-5p on invasive ability, EMT, and anoikis resistance, indicating that miR-525-5p acts as a tumor suppressor in CC largely through repression of UBE2C/ZEB1/2 signaling. CONCLUSIONS Taken together, our data identify a novel signaling axis of miR-525-5p/UBE2C/ZEB1/2 in repressing EMT and anoikis resistance, and likely serve as a potential therapeutic target for CC metastasis and prognosis as well as a therapeutic application.
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Affiliation(s)
- Mei Chen
- Department of Gynecology, Affiliated Hospital of Shaanxi University of Chinese Medicine, No. 2, Weiyang West Road, Xianyang, 712021, Shaanxi, People's Republic of China
| | - Li-Xiu Liu
- Department of Gynecology, Affiliated Hospital of Shaanxi University of Chinese Medicine, No. 2, Weiyang West Road, Xianyang, 712021, Shaanxi, People's Republic of China.
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14
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Kanasaki K, Kawakita E, Koya D. Relevance of Autophagy Induction by Gastrointestinal Hormones: Focus on the Incretin-Based Drug Target and Glucagon. Front Pharmacol 2019; 10:476. [PMID: 31156426 PMCID: PMC6531852 DOI: 10.3389/fphar.2019.00476] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022] Open
Abstract
The biology of autophagy in health and disease conditions has been intensively analyzed for decades. Several potential interventions can induce autophagy in preclinical research; however, none of these interventions are ready for translation to clinical practice yet. The topic of the current review is the molecular regulation of autophagy by glucagon, glucagon-like peptide (GLP)-1 and the GLP-1-degrading enzyme dipeptidyl peptidase-4 (DPP-4). Glucagon is a well-known polypeptide that induces autophagy. In contrast, GLP-1 has been shown to inhibit glucagon secretion; GLP-1 also has been related to the induction of autophagy. DPP-4 inhibitors can induce autophagy in a GLP-1-dependent manner, but other diverse effects could be relevant. Here, we analyze the distinct molecular regulation of autophagy by glucagon, GLP-1, and DPP-4 inhibitors. Additionally, the potential contribution to autophagy by glucagon and GLP-1 after bariatric surgery is discussed.
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Affiliation(s)
- Keizo Kanasaki
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
| | - Emi Kawakita
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan
| | - Daisuke Koya
- Department of Diabetology and Endocrinology, Kanazawa Medical University, Uchinada, Japan.,Division of Anticipatory Molecular Food Science and Technology, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
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15
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Satyavarapu EM, Das R, Mandal C, Mukhopadhyay A, Mandal C. Autophagy-independent induction of LC3B through oxidative stress reveals its non-canonical role in anoikis of ovarian cancer cells. Cell Death Dis 2018; 9:934. [PMID: 30224639 PMCID: PMC6141567 DOI: 10.1038/s41419-018-0989-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 08/18/2018] [Accepted: 08/23/2018] [Indexed: 01/04/2023]
Abstract
Cancer cells display abnormal redox metabolism. Autophagy, anoikis and reactive oxygen species (ROS) play a regulatory role during metastasis. LC3 is a well-known essential molecule for autophagy. Therefore, we wanted to explore the molecular interplay between autophagy, anoikis, and ROS in relation to LC3B. We observed enhanced LC3B level along with increased expression of p62 and modulation of other autophagy-related molecules (Atg 3, 5, 7, 12, 16L1 and Beclin1) by inducing oxidative-stress in ovarian cancer cells using a ROS-producing pro-oxidant molecule. Surprisingly, enhanced LC3B was unable to induce autophagosome formation rather promoted anoikis. ROS-induced inhibition of autophagosome-formation is possibly due to the instability of autophagy initiator, ULK1 complex. Moreover, such upregulation of LC3B via ROS enhanced several apoptotic molecules. Silencing LC3B reduced these apoptotic molecules and increased when overexpressed, suggesting its role in apoptosis. Furthermore, LC3B-dependent apoptosis was decreased by inhibiting ROS, indicating a possible link between ROS, LC3B, and apoptosis. Additionally, ROS-induced enhanced LC3B promoted detachment-induced cell death (anoikis). This was further reflected by reduced cell adhesion molecules (integrin-β3 and focal adhesion kinase) and mesenchymal markers (snail and slug). Our in vitro experimental data was further confirmed in primary tumors developed in syngeneic mice, which also showed ROS-mediated LC3B enhancement along with reduced autophagosomes, integrin-β3 and focal adhesion kinase ultimately leading to the decreased tumor mass. Additionally, primary cells from high-grade serous carcinoma patient's ascites exhibited LC3B enhancement and autophagy inhibition through ROS which provided a clinical relevance of our study. Taken together, this is the first evidence for a non-canonical role of LC3B in promoting anoikis in contrast to autophagy and may, therefore, consider as a potential therapeutic target molecule in ovarian cancer. Taken together, autophagy-inhibition may be an alternative approach to induce apoptosis/anoikis in cancer.
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Affiliation(s)
- Eswara Murali Satyavarapu
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, 4, Raja S.C. Mallick Road, Kolkata, 700032, India
| | - Ranjita Das
- Bose Institute, P 1/12, C. I. T. Road, Scheme - VIIM, Kolkata, 700054, India
| | - Chandan Mandal
- Tata Medical Center, 14 MAR, Rajarhat, Kolkata, 700156, India
| | - Asima Mukhopadhyay
- Tata Medical Center, 14 MAR, Rajarhat, Kolkata, 700156, India.,Northern Institute for Cancer Research, Newcastle University, Newcastle, UK
| | - Chitra Mandal
- Cancer Biology and Inflammatory Disorder Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, 4, Raja S.C. Mallick Road, Kolkata, 700032, India.
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16
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Rojo de la Vega M, Chapman E, Zhang DD. NRF2 and the Hallmarks of Cancer. Cancer Cell 2018; 34:21-43. [PMID: 29731393 PMCID: PMC6039250 DOI: 10.1016/j.ccell.2018.03.022] [Citation(s) in RCA: 986] [Impact Index Per Article: 164.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/11/2018] [Accepted: 03/19/2018] [Indexed: 12/20/2022]
Abstract
The transcription factor NRF2 is the master regulator of the cellular antioxidant response. Though recognized originally as a target of chemopreventive compounds that help prevent cancer and other maladies, accumulating evidence has established the NRF2 pathway as a driver of cancer progression, metastasis, and resistance to therapy. Recent studies have identified new functions for NRF2 in the regulation of metabolism and other essential cellular functions, establishing NRF2 as a truly pleiotropic transcription factor. In this review, we explore the roles of NRF2 in the hallmarks of cancer, indicating both tumor suppressive and tumor-promoting effects.
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Affiliation(s)
- Montserrat Rojo de la Vega
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA
| | - Eli Chapman
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA
| | - Donna D Zhang
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721, USA; University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85721, USA.
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17
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Lee Y, Yao W, Yang C, Li Y, Ni H, Wang L, Ji B, Gu Y, Yang S. MIST1 regulates SNAI1 and acts through the PTEN/AKT signaling axis to promote anoikisresistance in human melanoma cells. Exp Ther Med 2018; 16:695-703. [PMID: 30112032 PMCID: PMC6090440 DOI: 10.3892/etm.2018.6225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 06/23/2017] [Indexed: 12/26/2022] Open
Abstract
Cutaneous malignant melanoma (CMM) is one of the most dangerous types of skin cancer. The prognosis of CMM patients with ulcers, regional lymph node metastasis or organ metastasis is poor. In this process, resistance to anoikis is a critical step in tumor cell metastasis. Tumor cells survive in the vascular and lymphatic system through the escape of anoikis to finally form clones in the distal tissue. The present study revealed that muscle intestine and stomach expression 1 (MIST1), a secreting cell-restricted transcription factor, was overexpressed in melanoma cells. At the same time, the expression of SNAI1 was also high. High expression of MIST1 and SNAI1 all contributed to melanoma cells bypassing anoikis. By changing the expression of MIST1, SNAI1 was indicated to be a downstream gene of MIST1. Chromatin immunoprecipitation and luciferase reporter gene technology revealed that MIST1 promoted the expression of SNAI1 by directly binding to its promoter region. Furthermore, inhibition of the phosphorylation/activity of Akt by LY294002 and knockdown of phosphatase and tensin homologue (PTEN) with simultaneous upregulation or knockdown of MIST1 revealed that SNAI1 improved the phosphorylation of Akt by inhibiting the expression of PTEN. These results suggested that MIST1 hijacked the PTEN/AKT signaling pathway through directly regulating SNAI1 and affected the anoikis resistance capacity of melanoma cells.
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Affiliation(s)
- Yiju Lee
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Weifeng Yao
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, P.R. China
| | - Chunjun Yang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Yunrui Li
- School of Basic Medicine, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Haiyang Ni
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, P.R. China
| | - Lei Wang
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, P.R. China
| | - Bin Ji
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, P.R. China
| | - Yongge Gu
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin 300120, P.R. China
| | - Sen Yang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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18
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MDA-9/Syntenin regulates protective autophagy in anoikis-resistant glioma stem cells. Proc Natl Acad Sci U S A 2018; 115:5768-5773. [PMID: 29760085 DOI: 10.1073/pnas.1721650115] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Glioma stem cells (GSCs) comprise a small subpopulation of glioblastoma multiforme cells that contribute to therapy resistance, poor prognosis, and tumor recurrence. Protective autophagy promotes resistance of GSCs to anoikis, a form of programmed cell death occurring when anchorage-dependent cells detach from the extracellular matrix. In nonadherent conditions, GSCs display protective autophagy and anoikis-resistance, which correlates with expression of melanoma differentiation associated gene-9/Syntenin (MDA-9) (syndecan binding protein; SDCBP). When MDA-9 is suppressed, GSCs undergo autophagic death supporting the hypothesis that MDA-9 regulates protective autophagy in GSCs under anoikis conditions. MDA-9 maintains protective autophagy through phosphorylation of BCL2 and by suppressing high levels of autophagy through EGFR signaling. MDA-9 promotes these changes by modifying FAK and PKC signaling. Gain-of-function and loss-of-function genetic approaches demonstrate that MDA-9 regulates pEGFR and pBCL2 expression through FAK and pPKC. EGFR signaling inhibits autophagy markers (ATG5, Lamp1, LC3B), helping to maintain protective autophagy, and along with pBCL2 maintain survival of GSCs. In the absence of MDA-9, this protective mechanism is deregulated; EGFR no longer maintains protective autophagy, leading to highly elevated and sustained levels of autophagy and consequently decreased cell survival. In addition, pBCL2 is down-regulated in the absence of MDA-9, leading to cell death in GSCs under conditions of anoikis. Our studies confirm a functional link between MDA-9 expression and protective autophagy in GSCs and show that inhibition of MDA-9 reverses protective autophagy and induces anoikis and cell death in GSCs.
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19
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Zhao MY, Wang LM, Liu J, Huang X, Liu J, Zhang YF. MiR-21 Suppresses Anoikis through Targeting PDCD4 and PTEN in Human Esophageal Adenocarcinoma. Curr Med Sci 2018; 38:245-251. [PMID: 30074182 DOI: 10.1007/s11596-018-1872-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 03/10/2018] [Indexed: 12/25/2022]
Abstract
Anoikis is a form of apoptosis induced upon cell detachment from extracellular matrix. It has been determined that acquisition of resistance to anoikis is a critical step for tumor cell metastasis. MiR-21, the most prominent oncomiR, plays an important role in tumor progression. In this study, we revealed that up-regulation of miR-21 in human esophageal adenocarcinoma (EA) is associated with lymph node metastasis and poor survival rate. Because of the established anti-apoptosis effect of miR-21, it is tempting to speculate that miR-21 might contribute to tumor metastasis by regulating anoikis. qRT-PCR analysis demonstrated that miR-21 expression in OE33/AR cells (subpopulation of human EA OE33 cells that acquired resistance to anoikis) was significantly increased. Also, transfection of miR-21 mimics provided OE33 cells resisting to anoikis. By luciferase assays, we verified that PDCD4 and PTEN were the functional targets of miR-21. In mouse model, via tail vein injection experiment, we showed that the metastasis formation of OE33 cells in vivo could be mediated by changing the miR-21 expression pattern. Taken together, our findings suggested that miR-21 was involved in the regulation of anoikis in human EA cells. Targeting miR-21 may provide a novel strategy to prevent metastasis.
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Affiliation(s)
- Meng-Ya Zhao
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - La-Mei Wang
- Department of Medical Ultrasound, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, 430060, China
| | - Jing Liu
- Department of Emergency Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Xing Huang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Jing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Ya-Fei Zhang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
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20
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Regulation of inside-out β1-integrin activation by CDCP1. Oncogene 2018; 37:2817-2836. [PMID: 29511352 DOI: 10.1038/s41388-018-0142-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 12/07/2017] [Accepted: 12/09/2017] [Indexed: 12/21/2022]
Abstract
Tumor metastasis depends on the dynamic regulation of cell adhesion through β1-integrin. The Cub-Domain Containing Protein-1, CDCP1, is a transmembrane glycoprotein which regulates cell adhesion. Overexpression and loss of CDCP1 have been observed in the same cancer types to promote metastatic progression. Here, we demonstrate reduced CDCP1 expression in high-grade, primary prostate cancers, circulating tumor cells and tumor metastases of patients with castrate-resistant prostate cancer. CDCP1 is expressed in epithelial and not mesenchymal cells, and its cell surface and mRNA expression declines upon stimulation with TGFβ1 and epithelial-to-mesenchymal transition. Silencing of CDCP1 in DU145 and PC3 cells resulted in 3.4-fold higher proliferation of non-adherent cells and 4.4-fold greater anchorage independent growth. CDCP1-silenced tumors grew in 100% of mice, compared to 30% growth of CDCP1-expressing tumors. After CDCP1 silencing, cell adhesion and migration diminished 2.1-fold, caused by loss of inside-out activation of β1-integrin. We determined that the loss of CDCP1 reduces CDK5 kinase activity due to the phosphorylation of its regulatory subunit, CDK5R1/p35, by c-SRC on Y234. This generates a binding site for the C2 domain of PKCδ, which in turn phosphorylates CDK5 on T77. The resulting dissociation of the CDK5R1/CDK5 complex abolishes the activity of CDK5. Mutations of CDK5-T77 and CDK5R1-Y234 phosphorylation sites re-establish the CDK5/CDKR1 complex and the inside-out activity of β1-integrin. Altogether, we discovered a new mechanism of regulation of CDK5 through loss of CDCP1, which dynamically regulates β1-integrin in non-adherent cells and which may promote vascular dissemination in patients with advanced prostate cancer.
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21
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Wei JL, Li YC, Ma ZL, Jin YX. MiR-181a-5p promotes anoikis by suppressing autophagy during detachment induction in the mammary epithelial cell line MCF10A. Protein Cell 2016; 7:305-309. [PMID: 26975323 PMCID: PMC4818842 DOI: 10.1007/s13238-016-0255-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Jia-Li Wei
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
| | - Yuan-Cheng Li
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.,Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, China
| | - Zhong-Liang Ma
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - You-Xin Jin
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
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22
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Cai Z, Zhao D, Sun Y, Gao D, Li X, Yang J, Ma Z. Detachment-Based Equilibrium of Anoikic Cell Death and Autophagic Cell Survival Through Adaptor Protein p66Shc. Anat Rec (Hoboken) 2015; 299:325-33. [DOI: 10.1002/ar.23299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 09/18/2015] [Accepted: 10/19/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Zeyuan Cai
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin 300070 China
- Department of Cardiovascular Institute; Tianjin Chest Hospital; Tianjin 300222 China
| | - Dan Zhao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin 300070 China
| | - Yanan Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin 300070 China
| | - Dan Gao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin 300070 China
| | - Xia Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Jie Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin 300070 China
| | - Zhenyi Ma
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences; Tianjin Medical University; Tianjin 300070 China
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23
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Johnson RM, Vu NT, Griffin BP, Gentry AE, Archer KJ, Chalfant CE, Park MA. The Alternative Splicing of Cytoplasmic Polyadenylation Element Binding Protein 2 Drives Anoikis Resistance and the Metastasis of Triple Negative Breast Cancer. J Biol Chem 2015; 290:25717-27. [PMID: 26304115 DOI: 10.1074/jbc.m115.671206] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Indexed: 12/13/2022] Open
Abstract
Triple negative breast cancer (TNBC) represents an anomalous subset of breast cancer with a greatly reduced (30%) 5-year survival rate. The enhanced mortality and morbidity of TNBC arises from the high metastatic rate, which requires the acquisition of AnR, a process whereby anchorage-dependent cells become resistant to cell death induced by detachment. In this study TNBC cell lines were selected for AnR, and these cell lines demonstrated dramatic enhancement in the formation of lung metastases as compared with parental cells. Genetic analysis of the AnR subclones versus parental cells via next generation sequencing and analysis of global alternative RNA splicing identified that the mRNA splicing of cytoplasmic polyadenylation element binding 2 (CPEB2), a translational regulator, was altered in AnR TNBC cells. Specifically, increased inclusion of exon 4 into the mature mRNA to produce the CPEB2B isoform was observed in AnR cell lines. Molecular manipulations of CPEB2 splice variants demonstrated a key role for this RNA splicing event in the resistance of cells to anoikis. Specifically, down-regulation of the CPEB2B isoform using siRNA re-sensitized the AnR cell lines to detachment-induced cell death. The ectopic expression of CPEB2B in parental TNBC cell lines induced AnR and dramatically increased metastatic potential. Importantly, alterations in the alternative splicing of CPEB2 were also observed in human TNBC and additional subtypes of human breast cancer tumors linked to a high metastatic rate. Our findings demonstrate that the regulation of CPEB2 mRNA splicing is a key mechanism in AnR and a driving force in TNBC metastasis.
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Affiliation(s)
- Ryan M Johnson
- From the Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond Virginia 23298
| | - Ngoc T Vu
- From the Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond Virginia 23298, Vietnam Education Foundation, Arlington, Virginia 22201
| | - Brian P Griffin
- From the Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond Virginia 23298
| | - Amanda E Gentry
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia 23298
| | - Kellie J Archer
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia 23298, Virginia Commonwealth University Massey Cancer Center Biostatistics Shared Resource, Richmond, Virginia 23298, Center for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, Virginia 23298
| | - Charles E Chalfant
- From the Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond Virginia 23298, Virginia Commonwealth University Massey Cancer Center Massey Cancer Center, Richmond, Virginia 23298, Research and Development, Hunter Holmes McGuire Veterans Affairs Medical Center, Richmond, Virginia 23224, Virginia Commonwealth University Institute of Molecular Medicine, Richmond Virginia, 23298, and Virginia Commonwealth University Johnson Center, Richmond, Virginia, 23298
| | - Margaret A Park
- From the Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond Virginia 23298, Virginia Commonwealth University Massey Cancer Center Massey Cancer Center, Richmond, Virginia 23298,
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24
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Abstract
The power of proteomics in cultured skin fibroblasts from individuals
both systemic sclerosis and recessive dystrophic epidermolysis bullosa has led
to the common finding of senescence and deficiencies in autophagy. Both of these
disorders exert high demand on fibroblast activity, and without the protective
action of autophagy, cellular stress could have many adverse effects that are
further amplified by the senescent phenotype.
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