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Patra S, Roy PK, Dey A, Mandal M. Impact of HMGB1 on cancer development and therapeutic insights focused on CNS malignancy. Biochim Biophys Acta Rev Cancer 2024; 1879:189105. [PMID: 38701938 DOI: 10.1016/j.bbcan.2024.189105] [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: 02/07/2024] [Revised: 04/24/2024] [Accepted: 04/28/2024] [Indexed: 05/06/2024]
Abstract
The present study explores the complex roles of High Mobility Group Box 1 (HMGB1) in the context of cancer development, emphasizing glioblastoma (GBM) and other central nervous system (CNS) cancers. HMGB1, primarily known for its involvement in inflammation and angiogenesis, emerges as a multifaceted player in the tumorigenesis of GBM. The overexpression of HMGB1 correlates with glioma malignancy, influencing key pathways like RAGE/MEK/ERK and RAGE/Rac1. Additionally, HMGB1 secretion is linked to the maintenance of glioma stem cells (GSCs) and contributes to the tumor microenvironment's (TME) vascular leakiness. Henceforth, our review discusses the bidirectional impact of HMGB1, acting as both a promoter of tumor progression and a mediator of anti-tumor immune responses. Notably, HMGB1 exhibits tumor-suppressive roles by inducing apoptosis, limiting cellular proliferation, and enhancing the sensitivity of GBM to therapeutic interventions. This dualistic nature of HMGB1 calls for a nuanced understanding of its implications in GBM pathogenesis, offering potential avenues for more effective and personalized treatment strategies. The findings underscore the need to explore HMGB1 as a prognostic marker, therapeutic target, and a promising tool for stimulating anti-tumor immunity in GBM.
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Affiliation(s)
- Sucharita Patra
- Cancer Biology Lab, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India.
| | - Pritam Kumar Roy
- Cancer Biology Lab, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India.
| | - Ankita Dey
- Cancer Biology Lab, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India.
| | - Mahitosh Mandal
- Cancer Biology Lab, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India.
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2
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Salamini-Montemurri M, Vizoso-Vázquez Á, Barreiro-Alonso A, Lorenzo-Catoira L, Rodríguez-Belmonte E, Cerdán ME, Lamas-Maceiras M. The Effect of HMGB1 and HMGB2 on Transcriptional Regulation Differs in Neuroendocrine and Adenocarcinoma Models of Prostate Cancer. Int J Mol Sci 2024; 25:3106. [PMID: 38542079 PMCID: PMC10969884 DOI: 10.3390/ijms25063106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/25/2024] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Human high-mobility group-B (HMGB) proteins regulate gene expression in prostate cancer (PCa), a leading cause of oncological death in men. Their role in aggressive PCa cancers, which do not respond to hormonal treatment, was analyzed. The effects of HMGB1 and HMGB2 silencing upon the expression of genes previously related to PCa were studied in the PCa cell line PC-3 (selected as a small cell neuroendocrine carcinoma, SCNC, PCa model not responding to hormonal treatment). A total of 72% of genes analyzed, using pre-designed primer panels, were affected. HMGB1 behaved mostly as a repressor, but HMGB2 as an activator. Changes in SERPINE1, CDK1, ZWINT, and FN1 expression were validated using qRT-PCR after HMGB1 silencing or overexpression in PC-3 and LNCaP (selected as an adenocarcinoma model of PCa responding to hormonal treatment) cell lines. Similarly, the regulatory role of HMGB2 upon SERPINE1, ZWINT, FN1, IGFPB3, and TYMS expression was validated, finding differences between cell lines. The correlation between the expression of HMGB1, HMGB2, and their targets was analyzed in PCa patient samples and also in PCa subgroups, classified as neuroendocrine positive or negative, in public databases. These results allow a better understanding of the role of HMGB proteins in PCa and contribute to find specific biomarkers for aggressive PCa.
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Affiliation(s)
- Martín Salamini-Montemurri
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Ángel Vizoso-Vázquez
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Aida Barreiro-Alonso
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Lidia Lorenzo-Catoira
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Esther Rodríguez-Belmonte
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - María-Esperanza Cerdán
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Mónica Lamas-Maceiras
- Centro Interdisciplinar de Química e Bioloxía (CICA), Campus de Elviña, Universidade da Coruña, As Carballeiras, s/n, 15071 A Coruña, Spain; (M.S.-M.); (Á.V.-V.); (A.B.-A.); (L.L.-C.); (E.R.-B.)
- Facultade de Ciencias, Campus de A Zapateira, Universidade da Coruña, A Fraga, s/n, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
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3
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Araldi D, Khomula EV, Bonet IJM, Bogen O, Green PG, Levine JD. Role of pattern recognition receptors in chemotherapy-induced neuropathic pain. Brain 2024; 147:1025-1042. [PMID: 37787114 PMCID: PMC10907096 DOI: 10.1093/brain/awad339] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 07/25/2023] [Accepted: 09/12/2023] [Indexed: 10/04/2023] Open
Abstract
Progress in the development of effective chemotherapy is producing a growing population of patients with acute and chronic painful chemotherapy-induced peripheral neuropathy (CIPN), a serious treatment-limiting side effect for which there is currently no US Food and Drug Administration-approved treatment. CIPNs induced by diverse classes of chemotherapy drugs have remarkably similar clinical presentations, leading to the suggestion they share underlying mechanisms. Sensory neurons share with immune cells the ability to detect damage associated molecular patterns (DAMPs), molecules produced by diverse cell types in response to cellular stress and injury, including by chemotherapy drugs. DAMPs, in turn, are ligands for pattern recognition receptors (PRRs), several of which are found on sensory neurons, as well as satellite cells, and cells of the immune system. In the present experiments, we evaluated the role of two PRRs, TLR4 and RAGE, present in dorsal root ganglion (DRG), in CIPN. Antisense (AS)-oligodeoxynucleotides (ODN) against TLR4 and RAGE mRNA were administered intrathecally before ('prevention protocol') or 3 days after ('reversal protocol') the last administration of each of three chemotherapy drugs that treat cancer by different mechanisms (oxaliplatin, paclitaxel and bortezomib). TLR4 and RAGE AS-ODN prevented the development of CIPN induced by all three chemotherapy drugs. In the reversal protocol, however, while TLR4 AS-ODN completely reversed oxaliplatin- and paclitaxel-induced CIPN, in rats with bortezomib-induced CIPN it only produced a temporary attenuation. RAGE AS-ODN, in contrast, reversed CIPN induced by all three chemotherapy drugs. When a TLR4 antagonist was administered intradermally to the peripheral nociceptor terminal, it did not affect CIPN induced by any of the chemotherapy drugs. However, when administered intrathecally, to the central terminal, it attenuated hyperalgesia induced by all three chemotherapy drugs, compatible with a role of TLR4 in neurotransmission at the central terminal but not sensory transduction at the peripheral terminal. Finally, since it has been established that cultured DRG neurons can be used to study direct effects of chemotherapy on nociceptors, we also evaluated the role of TLR4 in CIPN at the cellular level, using patch-clamp electrophysiology in DRG neurons cultured from control and chemotherapy-treated rats. We found that increased excitability of small-diameter DRG neurons induced by in vivo and in vitro exposure to oxaliplatin is TLR4-dependent. Our findings suggest that in addition to the established contribution of PRR-dependent neuroimmune mechanisms, PRRs in DRG cells also have an important role in CIPN.
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Affiliation(s)
- Dionéia Araldi
- Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, CA 94143, USA
| | - Eugen V Khomula
- Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, CA 94143, USA
| | - Ivan J M Bonet
- Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, CA 94143, USA
| | - Oliver Bogen
- Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, CA 94143, USA
| | - Paul G Green
- Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, CA 94143, USA
- Department of Preventative and Restorative Dental Sciences, Division of Neuroscience, University of California at San Francisco, San Francisco, CA 94143, USA
| | - Jon D Levine
- Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, CA 94143, USA
- Department of Medicine, Division of Neuroscience, University of California at San Francisco, San Francisco, CA 94143, USA
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Hänggi K, Ruffell B. Cell death, therapeutics, and the immune response in cancer. Trends Cancer 2023; 9:381-396. [PMID: 36841748 PMCID: PMC10121860 DOI: 10.1016/j.trecan.2023.02.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/19/2023] [Accepted: 02/03/2023] [Indexed: 02/27/2023]
Abstract
Induction of cell death is inexorably linked with cancer therapy, but this can also initiate wound-healing processes that have been linked to cancer progression and therapeutic resistance. Here we describe the contribution of apoptosis and the lytic cell death pathways in the response to therapy (including chemotherapy and immunotherapy). We also discuss how necroptosis, pyroptosis, and ferroptosis function to promote tumor immunogenicity, along with emerging findings that these same forms of death can paradoxically contribute to immune suppression and tumor progression. Understanding the duality of cell death in cancer may allow for the development of therapeutics that shift the balance towards regression.
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Affiliation(s)
- Kay Hänggi
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Brian Ruffell
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA; Department of Breast Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
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Bikomeye JC, Terwoord JD, Santos JH, Beyer AM. Emerging mitochondrial signaling mechanisms in cardio-oncology: beyond oxidative stress. Am J Physiol Heart Circ Physiol 2022; 323:H702-H720. [PMID: 35930448 PMCID: PMC9529263 DOI: 10.1152/ajpheart.00231.2022] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 12/27/2022]
Abstract
Many anticancer therapies (CTx) have cardiotoxic side effects that limit their therapeutic potential and cause long-term cardiovascular complications in cancer survivors. This has given rise to the field of cardio-oncology, which recognizes the need for basic, translational, and clinical research focused on understanding the complex signaling events that drive CTx-induced cardiovascular toxicity. Several CTx agents cause mitochondrial damage in the form of mitochondrial DNA deletions, mutations, and suppression of respiratory function and ATP production. In this review, we provide a brief overview of the cardiovascular complications of clinically used CTx agents and discuss current knowledge of local and systemic secondary signaling events that arise in response to mitochondrial stress/damage. Mitochondrial oxidative stress has long been recognized as a contributor to CTx-induced cardiotoxicity; thus, we focus on emerging roles for mitochondria in epigenetic regulation, innate immunity, and signaling via noncoding RNAs and mitochondrial hormones. Because data exploring mitochondrial secondary signaling in the context of cardio-oncology are limited, we also draw upon clinical and preclinical studies, which have examined these pathways in other relevant pathologies.
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Affiliation(s)
- Jean C Bikomeye
- Doctorate Program in Public and Community Health, Division of Epidemiology and Social Sciences, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Janée D Terwoord
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
- Biomedical Sciences Department, Rocky Vista University, Ivins, Utah
| | - Janine H Santos
- Mechanistic Toxicology Branch, Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Andreas M Beyer
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
- Department of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin
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Mitsufuji S, Iwagami Y, Kobayashi S, Sasaki K, Yamada D, Tomimaru Y, Akita H, Asaoka T, Noda T, Gotoh K, Takahashi H, Tanemura M, Doki Y, Eguchi H. Inhibition of Clusterin Represses Proliferation by Inducing Cellular Senescence in Pancreatic Cancer. Ann Surg Oncol 2022; 29:4937-4946. [PMID: 35397747 DOI: 10.1245/s10434-022-11668-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/11/2022] [Indexed: 12/17/2023]
Abstract
BACKGROUND The outcome of pancreatic ductal adenocarcinoma (PDAC) is unsatisfactory, and the identification of novel therapeutic targets is urgently needed. Clinical studies on the antisense oligonucleotide that targets clusterin (CLU) expression have been conducted and have shown efficacy in other cancers. We aimed to investigate the effects of CLU in PDAC and the underlying mechanisms with a view to the clinical application of existing drugs. METHODS We knocked down CLU in PDAC cells and evaluated changes in cell proliferation. To elucidate the mechanism responsible for these changes, we performed western blot analysis, cell cycle assay, and senescence-associated β-galactosidase (SA-β-gal) staining. To evaluate the clinical significance of CLU, immunohistochemistry was performed, and CLU expression was analyzed in specimens resected from PDAC patients not treated with preoperative chemotherapy. RESULTS Knockdown of CLU significantly decreased cell proliferation and did not induce apoptosis, but did induce cellular senescence by increasing the percentage of G1-phase and SA-β-gal staining-positive cells. A marker of DNA damage such as γH2AX and factors related to cellular senescence, such as p21 and the senescence-associated secretory phenotype, were upregulated by knockdown of CLU. CLU expression in resected PDAC specimens was located in the cytoplasm of tumor cells and revealed significantly better recurrence-free survival and overall survival in the CLU-low group than in the CLU-high group. CONCLUSIONS We identified that CLU inhibition leads to cellular senescence in PDAC. Our findings suggest that CLU is a novel therapeutic target that contributes to the prognosis of PDAC by inducing cellular senescence.
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Affiliation(s)
- Suguru Mitsufuji
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoshifumi Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
| | - Kazuki Sasaki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoshito Tomimaru
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hirofumi Akita
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tadafumi Asaoka
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Takehiro Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kunihito Gotoh
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hidenori Takahashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Masahiro Tanemura
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Chen SY, Hsu YH, Wang SY, Chen YY, Hong CJ, Yen GC. Lucidone inhibits autophagy and MDR1 via HMGB1/RAGE/PI3K/Akt signaling pathway in pancreatic cancer cells. Phytother Res 2022; 36:1664-1677. [PMID: 35224793 DOI: 10.1002/ptr.7385] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/22/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022]
Abstract
Gemcitabine (GEM) drug resistance remains a difficult challenge in pancreatic ductal adenocarcinoma (PDAC) treatment. Therefore, identifying a safe and effective treatment strategy for PDAC is urgent. Lucidone is a natural compound extracted from the fruits of Lindera erythrocarpa Makino. However, the role of lucidone in PDAC inhibition remains unclear. In addition, high-mobility group box 1 (HMGB1) and receptor for advanced glycation end products (RAGE) are involved in multidrug resistance protein 1 (MDR1) regulation and GEM resistance. Thus, this study aimed to explore the function of lucidone in tumor cytotoxicity and chemosensitivity through the suppression of RAGE-initiated signaling in PDAC cells. The data showed that lucidone significantly promoted apoptotic cell death and inhibited the expression of autophagic proteins (Atg5, Beclin-1, LC3-II, and Vps34) and MDR1 by inhibiting the HMGB1/RAGE/PI3K/Akt axis in both MIA Paca-2 cells and MIA Paca-2GEMR cells (GEM-resistant cells). Notably, convincing data were also obtained in experiments involving RAGE-specific siRNA transfection. In addition, remarkable cell proliferation was observed after treatment with lucidone combined with GEM, particularly in MIA Paca-2GEMR cells, indicating that lucidone treatment enhanced chemosensitivity. Collectively, this study provided the underlying mechanism by which lucidone treatment inhibited HMGB1/RAGE-initiated PI3K/Akt/MDR1 signaling and consequently enhanced chemosensitivity in PDAC.
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Affiliation(s)
- Sheng-Yi Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Hao Hsu
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Sheng-Yang Wang
- Department of Forestry, National Chung Hsing University, Taichung, Taiwan
| | - Ying-Yin Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Cheng-Jie Hong
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
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Chemotherapy Resistance: Role of Mitochondrial and Autophagic Components. Cancers (Basel) 2022; 14:cancers14061462. [PMID: 35326612 PMCID: PMC8945922 DOI: 10.3390/cancers14061462] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Chemotherapy resistance is a common occurrence during cancer treatment that cancer researchers are attempting to understand and overcome. Mitochondria are a crucial intracellular signaling core that are becoming important determinants of numerous aspects of cancer genesis and progression, such as metabolic reprogramming, metastatic capability, and chemotherapeutic resistance. Mitophagy, or selective autophagy of mitochondria, can influence both the efficacy of tumor chemotherapy and the degree of drug resistance. Regardless of the fact that mitochondria are well-known for coordinating ATP synthesis from cellular respiration in cellular bioenergetics, little is known its mitophagy regulation in chemoresistance. Recent advancements in mitochondrial research, mitophagy regulatory mechanisms, and their implications for our understanding of chemotherapy resistance are discussed in this review. Abstract Cancer chemotherapy resistance is one of the most critical obstacles in cancer therapy. One of the well-known mechanisms of chemotherapy resistance is the change in the mitochondrial death pathways which occur when cells are under stressful situations, such as chemotherapy. Mitophagy, or mitochondrial selective autophagy, is critical for cell quality control because it can efficiently break down, remove, and recycle defective or damaged mitochondria. As cancer cells use mitophagy to rapidly sweep away damaged mitochondria in order to mediate their own drug resistance, it influences the efficacy of tumor chemotherapy as well as the degree of drug resistance. Yet despite the importance of mitochondria and mitophagy in chemotherapy resistance, little is known about the precise mechanisms involved. As a consequence, identifying potential therapeutic targets by analyzing the signal pathways that govern mitophagy has become a vital research goal. In this paper, we review recent advances in mitochondrial research, mitophagy control mechanisms, and their implications for our understanding of chemotherapy resistance.
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Marozzi M, Parnigoni A, Negri A, Viola M, Vigetti D, Passi A, Karousou E, Rizzi F. Inflammation, Extracellular Matrix Remodeling, and Proteostasis in Tumor Microenvironment. Int J Mol Sci 2021; 22:ijms22158102. [PMID: 34360868 PMCID: PMC8346982 DOI: 10.3390/ijms22158102] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/11/2021] [Accepted: 07/26/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer is a multifaceted and complex pathology characterized by uncontrolled cell proliferation and decreased apoptosis. Most cancers are recognized by an inflammatory environment rich in a myriad of factors produced by immune infiltrate cells that induce host cells to differentiate and to produce a matrix that is more favorable to tumor cells’ survival and metastasis. As a result, the extracellular matrix (ECM) is changed in terms of macromolecules content, degrading enzymes, and proteins. Altered ECM components, derived from remodeling processes, interact with a variety of surface receptors triggering intracellular signaling that, in turn, cancer cells exploit to their own benefit. This review aims to present the role of different aspects of ECM components in the tumor microenvironment. Particularly, we highlight the effect of pro- and inflammatory factors on ECM degrading enzymes, such as metalloproteases, and in a more detailed manner on hyaluronan metabolism and the signaling pathways triggered by the binding of hyaluronan with its receptors. In addition, we sought to explore the role of extracellular chaperones, especially of clusterin which is one of the most prominent in the extracellular space, in proteostasis and signaling transduction in the tumor microenvironment. Although the described tumor microenvironment components have different biological roles, they may engage common signaling pathways that favor tumor growth and metastasis.
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Affiliation(s)
- Marina Marozzi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43125 Parma, Italy; (M.M.); (A.N.); (F.R.)
| | - Arianna Parnigoni
- Department of Medicine and Surgery, University of Insubria, Via J.H. Dunant 5, 21100 Varese, Italy; (A.P.); (M.V.); (D.V.); (A.P.)
| | - Aide Negri
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43125 Parma, Italy; (M.M.); (A.N.); (F.R.)
| | - Manuela Viola
- Department of Medicine and Surgery, University of Insubria, Via J.H. Dunant 5, 21100 Varese, Italy; (A.P.); (M.V.); (D.V.); (A.P.)
| | - Davide Vigetti
- Department of Medicine and Surgery, University of Insubria, Via J.H. Dunant 5, 21100 Varese, Italy; (A.P.); (M.V.); (D.V.); (A.P.)
| | - Alberto Passi
- Department of Medicine and Surgery, University of Insubria, Via J.H. Dunant 5, 21100 Varese, Italy; (A.P.); (M.V.); (D.V.); (A.P.)
| | - Evgenia Karousou
- Department of Medicine and Surgery, University of Insubria, Via J.H. Dunant 5, 21100 Varese, Italy; (A.P.); (M.V.); (D.V.); (A.P.)
- Correspondence:
| | - Federica Rizzi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43125 Parma, Italy; (M.M.); (A.N.); (F.R.)
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Ning J, Yang R, Wang H, Cui L. HMGB1 enhances chemotherapy resistance in multiple myeloma cells by activating the nuclear factor-κB pathway. Exp Ther Med 2021; 22:705. [PMID: 34007314 PMCID: PMC8120504 DOI: 10.3892/etm.2021.10137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/31/2021] [Indexed: 12/12/2022] Open
Abstract
Chemotherapy resistance is a main obstacle in the clinical chemotherapeutic treatment of multiple myeloma (MM). High-mobility group box 1 (HMGB1) has been revealed to be associated with the sensitivity of MM cells to chemotherapy, but how HMGB1 regulates chemotherapy resistance in MM has yet to be fully elucidated. In the present study, the exact molecular mechanism underlying HMGB1-mediated drug resistance in MM was explored using three chemotherapy-resistant MM cells (RPMI8226/ADR, RPMI8226/BOR and RPMI8226/DEX) that were successfully established. Reverse transcription-quantitative polymerase chain reaction revealed that the three chemotherapy-resistant MM cells exhibited a higher release of HMGB1 compared with the parental RPMI8226 cells. Interference with endogenous HMGB1 increased the sensitivity of drug-resistant MM cells to chemotherapy, which was supported by the low IC50 value and the enlargement of cell apoptosis. Furthermore, short hairpin (sh)RNA-transfected MM cells showed an obvious elevation in phosphorylated (p)-IKKα/β, p-IκBα and p-p65 in whole cell lysate and/or nucleus, and treatment of nuclear factor (NF)-κB activator reversed the effect of shHMGB1-mediated cell viability and apoptosis in MM cells. In conclusion, HMGB1 regulates drug resistance in MM cells by regulating NF-κB signaling pathway, suggesting that HMGB1 has the potential to serve as a target for MM treatment.
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Affiliation(s)
- Jing Ning
- Department of Hematology, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Rui Yang
- Department of Hematology, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Hainan Wang
- Department of Hematology, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Lijuan Cui
- Department of Hematology, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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11
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Praharaj PP, Patra S, Panigrahi DP, Patra SK, Bhutia SK. Clusterin as modulator of carcinogenesis: A potential avenue for targeted cancer therapy. Biochim Biophys Acta Rev Cancer 2020; 1875:188500. [PMID: 33385484 DOI: 10.1016/j.bbcan.2020.188500] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/14/2020] [Accepted: 12/24/2020] [Indexed: 12/30/2022]
Abstract
Clusterin (CLU) is an evolutionary conserved molecular chaperone present in different human tissues and fluids and established to be a significant cancer regulator. It controls several cancer-associated cellular events, including cancer cell proliferation, stemness, survival, metastasis, epithelial-mesenchymal transition, therapy resistance, and inhibition of programmed cell death to support cancer growth and recurrence. This multifunctional role of CLU makes it an ideal target for cancer control. More importantly, genetic and antisense-mediated (OGX-011) inhibition of CLU enhances the anticancer potential of different FDA-approved chemotherapeutic drugs at the clinical level, improving patient's survival. In this review, we have discussed the detailed mechanism of CLU-mediated modulation of different cancer-associated signaling pathways. We have also provided updated information on the current preclinical and clinical findings that drive trials in various cancer types for potential targeted cancer therapy.
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Affiliation(s)
- Prakash Priyadarshi Praharaj
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Srimanta Patra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Debasna Pritimanjari Panigrahi
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
| | - Sujit Kumar Bhutia
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India.
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12
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Interactions between tumor-derived proteins and Toll-like receptors. Exp Mol Med 2020; 52:1926-1935. [PMID: 33299138 PMCID: PMC8080774 DOI: 10.1038/s12276-020-00540-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/20/2020] [Accepted: 11/02/2020] [Indexed: 12/23/2022] Open
Abstract
Damage-associated molecular patterns (DAMPs) are danger signals (or alarmins) alerting immune cells through pattern recognition receptors (PRRs) to begin defense activity. Moreover, DAMPs are host biomolecules that can initiate a noninflammatory response to infection, and pathogen-associated molecular pattern (PAMPs) perpetuate the inflammatory response to infection. Many DAMPs are proteins that have defined intracellular functions and are released from dying cells after tissue injury or chemo-/radiotherapy. In the tumor microenvironment, DAMPs can be ligands for Toll-like receptors (TLRs) expressed on immune cells and induce cytokine production and T-cell activation. Moreover, DAMPs released from tumor cells can directly activate tumor-expressed TLRs that induce chemoresistance, migration, invasion, and metastasis. Furthermore, DAMP-induced chronic inflammation in the tumor microenvironment causes an increase in immunosuppressive populations, such as M2 macrophages, myeloid-derived suppressor cells (MDSCs), and regulatory T cells (Tregs). Therefore, regulation of DAMP proteins can reduce excessive inflammation to create an immunogenic tumor microenvironment. Here, we review tumor-derived DAMP proteins as ligands of TLRs and discuss their association with immune cells, tumors, and the composition of the tumor microenvironment. Tumor cells killed by radiotherapy or chemotherapy release signaling molecules that stimulate both immune response and tumor aggressiveness; regulating these molecules could improve treatment efficacy. Tae Heung Kang, Yeong-Min Park, and co-workers at Konkuk University, Seoul, South Korea, have reviewed the role of damage-associated molecular patterns (DAMPs) in immunity and cancer. These signaling molecules act as danger signals, activating immune cells by binding to specific receptors. However, tumor cells have the same receptors, and DAMPs binding triggers chemoresistance and increases invasiveness. The researchers report that although DAMPs can trigger a helpful immune response, they can also cause chronic inflammation, which in turn promotes an immune suppression response, allowing tumors to escape immune detection. Improving our understanding of the functions of different DAMPs could improve our ability to boost the immune response and decrease tumor aggressiveness.
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13
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Yao M, Sai W, Zheng W, Wang L, Dong Z, Yao D. Secretory Clusterin as a Novel Molecular-targeted Therapy for Inhibiting Hepatocellular Carcinoma Growth. Curr Med Chem 2020; 27:3290-3301. [PMID: 31232234 DOI: 10.2174/0929867326666190624161158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 03/19/2019] [Accepted: 05/28/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Although secretory clusterin (sCLU) plays a crucial role in Hepatocellular Carcinoma (HCC) cells proliferation, Multiple Drug Resistance (MDR), metastasis and so on, its targeted effects and exact mechanism are still unknown. This review summarizes some new progress in sCLU as a molecular-targeted therapy in the treatment of HCC. METHODS A systematic review of the published English-language literature about sCLU and HCC has been performed using the PubMed and bibliographic databases. Some valuable studies on sCLU in HCC progression were searched for relevant articles with the keywords: HCC, diagnosis, MDR, as molecular-targeted in treatment, and so on. RESULTS The incidence of the positive rate of sCLU was significantly higher in HCC tissues as compared to the surrounding tissues at mRNA or protein level, gradually increasing with tumor-nodemetastasis staging (P<0.05). Also, the abnormal level of sCLU was related to poor differentiation degree, and considered as a useful marker for HCC diagnosis or independent prognosis for patients. Hepatic sCLU could be silenced at mRNA level by specific sCLU-shRNA or by OGX-011 to inhibit cancer cell proliferation with an increase in apoptosis, cell cycle arrest, reversal MDR, alteration of cell migration or invasion behaviors, and a decrease in GSK-3β or AKT phosphorylation in vitro, as well as significant suppression of the xenograft growth by down-regulating β-catenin, p-GSK3β, and cyclinD1 expression in vivo. CONCLUSION Abnormal hepatic sCLU expression should not only be a new diagnostic biomarker but also a novel promising target for inhibiting HCC growth.
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Affiliation(s)
- Min Yao
- Medical School of Nantong University, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Wenli Sai
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Wenjie Zheng
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Li Wang
- Medical School of Nantong University, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Zhizhen Dong
- Department of Diagnostics, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Dengfu Yao
- Medical School of Nantong University, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
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14
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Kütük SG, Nazıroğlu M. Selenium Diminishes Docetaxel-Induced Cell Death, Oxidative Stress, and Inflammation in the Laryngotracheal Epithelium of the Mouse. Biol Trace Elem Res 2020; 196:184-194. [PMID: 31729642 DOI: 10.1007/s12011-019-01914-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/20/2019] [Indexed: 01/31/2023]
Abstract
Docetaxel (DOCX) kills tumor cells through the formation of microtubules, calcium ion influx, apoptosis, and inflammation. However, DOCX has adverse effect on normal tissues through the production of reactive oxygen species (ROS), despite the adverse effect was inhibited by antioxidants. We investigated the protective role of selenium against DOCX-induced apoptosis and mitochondrial oxidative injury in laryngotracheal epithelial (LARYN) cells of mice. Thirty-two mice were divided into four groups (n = 8). The first group was used as a control. The second and third groups were treated with sodium selenite (Na-Sel) and DOCX, respectively. The fourth group was the combined group of Na-Sel and DOCX. At the end of the experiment, LARYN mucosa and cells were obtained from the mice. In the LARYN cells, the cell viability level was low in DOCX group, although glutathione peroxidase activity and cell viability level were increased by the treatment of Na-Sel. Increased lipid peroxidation, intracellular ROS, mitochondrial membrane depolarization, cell death levels, TNF-α, IL-1β, IL-6, caspase -3, and -9 activities in the DOCX group of LARYN cells were diminished by the treatment of Na-Sel. In conclusion, DOCX increased mitochondrial ROS, cell death, and inflammation in the LARYN cells, although the increase was reduced in the cells by Na-Sel treatment. DOCX-induced adverse oxidant, inflammatory, and apoptotic effects in the tissue might be reduced by the Na-Sel treatment.
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Affiliation(s)
- Sinem Gökçe Kütük
- Department of Otorhinolaryngology, Aydın State Hospital, Aydın, Turkey
| | - Mustafa Nazıroğlu
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey.
- Drug Discovery Unit, BSN Health, Analyses, Innovation, Consultancy, Organization, Agriculture and Industry LTD, Göller Bölgesi Teknokenti, Isparta, Turkey.
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15
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HMGB1 release promotes paclitaxel resistance in castration-resistant prostate cancer cells via activating c-Myc expression. Cell Signal 2020; 72:109631. [PMID: 32275943 DOI: 10.1016/j.cellsig.2020.109631] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 04/03/2020] [Accepted: 04/05/2020] [Indexed: 02/06/2023]
Abstract
Paclitaxel (PTX) is one of standard chemotherapy drug for patients with metastatic castration-resistant prostate cancer (mCRPC). However, PTX resistance leads to treatment failures, for which the underlying molecular mechanisms remain exclusive. In this study, we reported that PTX-induced constant HMGB1 expression and release confers to PTX resistance in mCRPC cells via activating and sustaining c-Myc signaling. PTX upregulated HMGB1 expression and triggered its release in human mCRPC cells. Silencing HMGB1 by RNAi and blocking HMGB1 release by glycyrrhizin or HMGB1 neutralizing antibody sensitized the response of PTX-resistant mCRPC cells to PTX. Release HMGB1 activated c-Myc expression. Inhibiting c-Myc expression by RNAi or c-MyC inhibitor significantly enhance the sensitivity of PTX-resistant CRPC cells to PTX. Therefore, HMGB1/c-Myc axis is critical in the development of PTX resistance, and targeting HMGB1/c-Myc axis would counteract PTX resistance in mCRPC cells.
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16
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Artemaki PI, Sklirou AD, Kontos CK, Liosi AA, Gianniou DD, Papadopoulos IN, Trougakos IP, Scorilas A. High clusterin (CLU) mRNA expression levels in tumors of colorectal cancer patients predict a poor prognostic outcome. Clin Biochem 2020; 75:62-69. [DOI: 10.1016/j.clinbiochem.2019.10.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 02/07/2023]
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17
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Bertacchini J, Mediani L, Beretti F, Guida M, Ghalali A, Brugnoli F, Bertagnolo V, Petricoin E, Poti F, Arioli J, Anselmi L, Bari A, McCubrey J, Martelli AM, Cocco L, Capitani S, Marmiroli S. Clusterin enhances AKT2-mediated motility of normal and cancer prostate cells through a PTEN and PHLPP1 circuit. J Cell Physiol 2019; 234:11188-11199. [PMID: 30565691 DOI: 10.1002/jcp.27768] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 10/30/2018] [Indexed: 07/23/2024]
Abstract
Clusterin (CLU) is a chaperone-like protein with multiple functions. sCLU is frequently upregulated in prostate tumor cells after chemo- or radiotherapy and after surgical or pharmacological castration. Moreover, CLU has been documented to modulate the cellular homolog of murine thymoma virus akt8 oncogene (AKT) activity. Here, we investigated how CLU overexpression influences phosphatidylinositol 3'-kinase (PI3K)/AKT signaling in human normal and cancer epithelial prostate cells. Human prostate cells stably transfected with CLU were broadly profiled by reverse phase protein array (RPPA), with particular emphasis on the PI3K/AKT pathway. The effect of CLU overexpression on normal and cancer cell motility was also tested. Our results clearly indicate that CLU overexpression enhances phosphorylation of AKT restricted to isoform 2. Mechanistically, this can be explained by the finding that the phosphatase PH domain leucine-rich repeat-containing protein phosphatase 1 (PHLPP1), known to dephosphorylate AKT2 at S474, is markedly downregulated by CLU, whereas miR-190, a negative regulator of PHLPP1, is upregulated. Moreover, we found that phosphatase and tensin homolog (PTEN) was heavily phosphorylated at the inhibitory site S380, contributing to the hyperactivation of AKT signaling. By keeping AKT2 phosphorylation high, CLU dramatically enhances the migratory behavior of prostate epithelial cell lines with different migratory and invasive phenotypes, namely prostate normal epithelial 1A (PNT1A) and prostatic carcinoma 3 (PC3) cells. Altogether, our results unravel for the first time a circuit by which CLU can switch a low migration phenotype toward a high migration phenotype, through miR-190-dependent downmodulation of PHLPP1 expression and, in turn, stabilization of AKT2 phosphorylation.
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Affiliation(s)
- Jessika Bertacchini
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Laura Mediani
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Francesca Beretti
- Department of Medicine, Surgery, Dentistry, and Morphology, University of Modena and Reggio Emilia, Modena, Italy
| | - Marianna Guida
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Aram Ghalali
- Institute of Environment Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Federica Brugnoli
- Department of Morphology, Surgery, and Experimental Medicine, Section of Anatomy and Histology and LTTA Center, University of Ferrara, Ferrara, Italy
| | - Valeria Bertagnolo
- Department of Morphology, Surgery, and Experimental Medicine, Section of Anatomy and Histology and LTTA Center, University of Ferrara, Ferrara, Italy
| | - Emanuel Petricoin
- Center for Applied Proteomics & Molecular Medicine, GMU, Fairfax, Virginia
| | - Francesco Poti
- Department of Medicine and Surgery-Unit of Neurosciences, University of Parma, Parma, Italy
| | - Jessica Arioli
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Laura Anselmi
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessia Bari
- Department of Diagnostic, Clinical Medicine and Public Health, Program of Innovative Therapy in Oncology and Hematology, University of Modena and Reggio Emilia, Modena, Italy
| | - James McCubrey
- Department of Microbiology and Immunology, Brody School of Medicine at East Carolina University, Greenville, North Carolina
| | - Alberto M Martelli
- Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy
| | - Lucio Cocco
- Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy
| | - Silvano Capitani
- Department of Morphology, Surgery, and Experimental Medicine, Section of Anatomy and Histology and LTTA Center, University of Ferrara, Ferrara, Italy
| | - Sandra Marmiroli
- Department of Biomedical, Metabolic, and Neural Sciences, Section of Morphology, Signal Transduction Unit, University of Modena and Reggio Emilia, Modena, Italy
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Ma JX, Sun YL, Yu Y, Zhang J, Wu HY, Yu XF. Triptolide enhances the sensitivity of pancreatic cancer PANC-1 cells to gemcitabine by inhibiting TLR4/NF-κB signaling. Am J Transl Res 2019; 11:3750-3760. [PMID: 31312385 PMCID: PMC6614654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 03/30/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND This study aimed to investigate roles of Toll-like receptor 4 (TLR4)/nuclear factor (NF)-κB signaling in triptolide (TPL)-induced sensitivity of pancreatic cancer cells to gemcitabine (GEM). METHODS In vitro, pancreatic cancer PANC-1 cells were treated with lipopolysaccharide (LPS) to activate TLR4, TLR4-siRNA, GEM alone, or GEM plus TPL. In vivo, nude mice bearing PANC-1 cell xenografts were treated with GEM, TPL, or both. Cell proliferation was detected by MTT assay and Ki-67 staining. Apoptosis was assessed by flow cytometry and TUNEL assay. A double luciferase reporter gene was used to detect NF-κB activity. RESULTS The sensitivity of PANC-1 cells to GEM was reduced by LPS but enhanced by TLR4-siRNA. TPL inhibited expression of TLR4/NF-κB signaling components, which was reversed by LPS. The TPL+GEM group showed more apoptosis than the LPS+TPL+GEM group. Moreover, the activity of NF-κB and the expression of TLR4, p-p65 Survivin, CyclinD1 and Bcl-2 in the TPL+GEM group were lower than in the LPS+TPL+GEM group, whereas Bax expression was higher. The volume of transplanted tumors in the TPL+GEM group was lower than that in the TPL or GEM group. Phospho-p65, Survivin, CyclinD1 and Bcl-2 expression in transplanted tumors was lower in TPL+GEM group than in either single drug group. The Ki-67 staining score of the TPL+GEM group was lower and tumor cells apoptosis rate was increased when compared with TPL or GEM alone. CONCLUSIONS TPL enhances the sensitivity of pancreatic cancer PANC-1 cells to GEM by inhibiting TLR4/NF-κB signaling.
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Affiliation(s)
- Jian-Xia Ma
- Department of Gastroenterology, Huadong Hospital of Fudan UniversityShanghai 200338, China
| | - Yun-Liang Sun
- Department of Gastroenterology, The First People’s Hospital of LianyungangLianyungang 222061, Jiangsu, China
| | - Yang Yu
- Department of Gastroenterology, Huadong Hospital of Fudan UniversityShanghai 200338, China
| | - Jian Zhang
- Department of General Surgery, Ganyu District People’s Hospital of Lianyungang CityLianyungang 222100, Jiangsu, China
| | - Hong-Yu Wu
- Department of Gastroenterology, Changhai Hospital of Second Military Medical UniversityShanghai 200433, China
| | - Xiao-Feng Yu
- Department of Gastroenterology, Huadong Hospital of Fudan UniversityShanghai 200338, China
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19
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Bouaouiche S, Magadoux L, Dondaine L, Reveneau S, Isambert N, Bettaieb A, Jeannin JF, Laurens V, Plenchette S. Glyceryl trinitrate‑induced cytotoxicity of docetaxel‑resistant prostatic cancer cells is associated with differential regulation of clusterin. Int J Oncol 2019; 54:1446-1456. [PMID: 30720069 DOI: 10.3892/ijo.2019.4708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 12/21/2018] [Indexed: 11/05/2022] Open
Abstract
Metastatic castration resistant prostate cancer (mCRPC) relapse due to acquired resistance to chemotherapy, such as docetaxel, remains a major threat to patient survival. Resistance of mCRPC to docetaxel can be associated with elevated levels of soluble clusterin (sCLU) and growth differentiation factor‑15 (GDF‑15). Any strategies aiming to modulate sCLU and/or GDF‑15 in docetaxel‑resistant prostate cancer cells present a therapeutic interest. The present study reports the cytotoxic effect of a nitric oxide donor, glyceryl trinitrate (GTN), on docetaxel‑resistant mCRPC human cell lines and demonstrates that GTN displays greater inhibition of cell viability toward docetaxel‑resistant mCRPC cells than on mCRPC cells. It is also demonstrated that GTN modulates the level of expression of clusterin (CLU) which is dependent of GDF‑15, two markers associated with docetaxel resistance in prostate cancer. The results indicate that GTN represses the level of expression of the cytoprotective isoform of CLU (sCLU) and can increase the level of expression of the cytotoxic isoform (nuclear CLU) in docetaxel resistant cells. Furthermore, it was observed that GTN differentially regulates the level of the precursor form of GDF‑15 between resistant and parental cells, and that recombinant GDF‑15 can modulate the expression of CLU isoforms and counteract GTN‑induced cytotoxicity in resistant cells. A link was established between GDF‑15 and the expression of CLU isoforms. The present study thus revealed GTN as a potential therapeutic strategy to overcome docetaxel‑resistant mCRPC.
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Affiliation(s)
- Sarra Bouaouiche
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | - Lea Magadoux
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | - Lucile Dondaine
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | - Sylvie Reveneau
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | | | - Ali Bettaieb
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | - Jean-François Jeannin
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | - Veronique Laurens
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
| | - Stephanie Plenchette
- Laboratoire d'Immunologie et Immunothérapie des Cancers, EPHE, PSL Research University, F‑75000 Paris, France
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20
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Xiao Y, Zhang Y, Xiao F. Comparison of several commonly used detection indicators of cell senescence. Drug Chem Toxicol 2018; 43:213-218. [PMID: 30588854 DOI: 10.1080/01480545.2018.1551407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Cell senescence is the state of irreversible growth arrest that can be triggered by a variety of different cellular stresses. Currently, the commonly used detection indicators involved in the study of cell senescence include senescence-associated β-galactosidase, Clusterin, Telomeres/Telomerase, senescence-associated heterochromatin foci, senescence-associated secretory phenotype, senescence marker protein-30, tumor suppressor genes p53 and p16, and other indicators such as Ki67 and decoy receptor 2. These indicators are widely used in the study of cell senescence, each with its own characteristics, advantages, and disadvantages. This review summarizes several commonly used cell senescence indicators and compares their accuracy, credibility, specificity, and the scope of their potential application.
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Affiliation(s)
- Yuanyuan Xiao
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, PR China
| | - Yiyuan Zhang
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, PR China
| | - Fang Xiao
- Department of Health Toxicology, Xiangya School of Public Health, Central South University, Changsha, PR China
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21
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Sarhan M, Land WG, Tonnus W, Hugo CP, Linkermann A. Origin and Consequences of Necroinflammation. Physiol Rev 2018; 98:727-780. [PMID: 29465288 DOI: 10.1152/physrev.00041.2016] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
When cells undergo necrotic cell death in either physiological or pathophysiological settings in vivo, they release highly immunogenic intracellular molecules and organelles into the interstitium and thereby represent the strongest known trigger of the immune system. With our increasing understanding of necrosis as a regulated and genetically determined process (RN, regulated necrosis), necrosis and necroinflammation can be pharmacologically prevented. This review discusses our current knowledge about signaling pathways of necrotic cell death as the origin of necroinflammation. Multiple pathways of RN such as necroptosis, ferroptosis, and pyroptosis have been evolutionary conserved most likely because of their differences in immunogenicity. As the consequence of necrosis, however, all necrotic cells release damage associated molecular patterns (DAMPs) that have been extensively investigated over the last two decades. Analysis of necroinflammation allows characterizing specific signatures for each particular pathway of cell death. While all RN-pathways share the release of DAMPs in general, most of them actively regulate the immune system by the additional expression and/or maturation of either pro- or anti-inflammatory cytokines/chemokines. In addition, DAMPs have been demonstrated to modulate the process of regeneration. For the purpose of better understanding of necroinflammation, we introduce a novel classification of DAMPs in this review to help detect the relative contribution of each RN-pathway to certain physiological and pathophysiological conditions.
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Affiliation(s)
- Maysa Sarhan
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Walter G Land
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Wulf Tonnus
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Christian P Hugo
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Andreas Linkermann
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
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22
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HMGB1 promotes ERK-mediated mitochondrial Drp1 phosphorylation for chemoresistance through RAGE in colorectal cancer. Cell Death Dis 2018; 9:1004. [PMID: 30258050 PMCID: PMC6158296 DOI: 10.1038/s41419-018-1019-6] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/09/2018] [Accepted: 08/27/2018] [Indexed: 12/12/2022]
Abstract
Dysfunctional mitochondria have been shown to enhance cancer cell proliferation, reduce apoptosis, and increase chemoresistance. Chemoresistance develops in nearly all patients with colorectal cancer, leading to a decrease in the therapeutic efficacies of anticancer agents. However, the effect of dynamin-related protein 1 (Drp1)-mediated mitochondrial fission on chemoresistance in colorectal cancer is unclear. Here, we found that the release of high-mobility group box 1 protein (HMGB1) in conditioned medium from dying cells by chemotherapeutic drugs and resistant cells, which triggered Drp1 phosphorylation via its receptor for advanced glycation end product (RAGE). RAGE signals ERK1/2 activation to phosphorylate Drp1 at residue S616 triggerring autophagy for chemoresistance and regrowth in the surviving cancer cells. Abolishment of Drp1 phosphorylation by HMGB1 inhibitor and RAGE blocker significantly enhance sensitivity to the chemotherapeutic treatment by suppressing autophagy. Furthermore, patients with high phospho-Drp1Ser616 are associated with high risk on developing tumor relapse, poor 5-year disease-free survival (DFS) and 5-year overall survival (OS) after neoadjuvant chemoradiotherapy (neoCRT) treatment in locally advanced rectal cancer (LARC). Moreover, patients with RAGE-G82S polymorphism (rs2070600) are associated with high phospho-Drp1Ser616 within tumor microenvironment. These findings suggest that the release of HMGB1 from dying cancer cells enhances chemoresistance and regrowth via RAGE-mediated ERK/Drp1 phosphorylation.
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23
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Xue Y, Yang L, Li J, Yan Y, Jiang Q, Shen L, Yang S, Shen B, Huang R, Yan J, Guo H. Combination chemotherapy with Zyflamend reduced the acquired resistance of bladder cancer cells to cisplatin through inhibiting NFκB signaling pathway. Onco Targets Ther 2018; 11:4413-4429. [PMID: 30104883 PMCID: PMC6072829 DOI: 10.2147/ott.s162255] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background Cisplatin-based chemotherapy is mainstay treatment in urinary bladder cancer (UBC). However, tumor recurrence frequently occurs with the acquisition of cisplatin resistance. We explored the potential effect of a polyherbal preparation, Zyflamend, on UBC cells resistant to cisplatin treatment. Methods To establish a cisplatin-resistant human bladder cancer cell line, T24 cells were cultured in increasing concentrations of cisplatin for more than 10 months. These cells (T24R) were then treated with different concentrations of Zyflamend, and both proliferation and activity of nuclear factor kappaB (NFκB) signaling pathway were examined. To test the synergistic effect between Zyflamend and cisplatin, we treated T24R cells either with Zyflamend or cisplatin alone, or in combination. Apoptotic effect was evaluated by Annexin V/propidium iodide double staining, and the levels of the proteins involved in cell cycle and anti-apoptosis were examined by Western blotting. Finally, mice with palpable xenograft were treated either with cisplatin and Zyflamend alone or in combination for 28 days before they were sacrificed for measuring the sizes and weights of the tumor tissues. In addition, proliferation and apoptosis markers were examined by immunohistochemistry. Results Comparing to that in the parental T24 cells, NFκB is constitutively active in cisplatin-resistant T24R cells. Zyflamend is capable of inhibiting the growth of T24, T24R, as well as another UBC cell line J82 in a concentration-dependent manner. Mechanistically, Zyflamend suppresses NFκB-mediated cell proliferation, survival, and invasion/angiogenesis and induces apoptosis. In addition, Zyflamend significantly increased the sensitivity of T24R and J82 cells to cisplatin treatment and these findings were confirmed in T24R xenograft model with reduced proliferation index and decreased expression of RelA and its downstream target MMP9. Conclusion Zyflamend is capable of counteracting bladder cancer resistance to cisplatin by repressing proliferation and inducing apoptosis through targeting NFκB signaling pathway.
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Affiliation(s)
- Yanshi Xue
- Department of Urology, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, China,
| | - Lin Yang
- Department of Urology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
| | - Junzun Li
- MOE Key Laboratory of Model Animals for Disease Study and State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Yilin Yan
- Department of Urology, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Qinghui Jiang
- University of Chinese Academy of Sciences, Beijing, China, .,Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China,
| | - Lan Shen
- MOE Key Laboratory of Model Animals for Disease Study and State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Shuai Yang
- MOE Key Laboratory of Model Animals for Disease Study and State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Bing Shen
- Department of Urology, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Ruimin Huang
- University of Chinese Academy of Sciences, Beijing, China, .,Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China,
| | - Jun Yan
- MOE Key Laboratory of Model Animals for Disease Study and State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center of Nanjing University, Nanjing, China.,Collaborative Innovation Center of Genetics and Development, Shanghai, China
| | - Hongqian Guo
- Department of Urology, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, China,
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24
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Zhang J, Shao S, Han D, Xu Y, Jiao D, Wu J, Yang F, Ge Y, Shi S, Li Y, Wen W, Qin W. High mobility group box 1 promotes the epithelial-to-mesenchymal transition in prostate cancer PC3 cells via the RAGE/NF-κB signaling pathway. Int J Oncol 2018; 53:659-671. [PMID: 29845254 PMCID: PMC6017266 DOI: 10.3892/ijo.2018.4420] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/17/2018] [Indexed: 12/21/2022] Open
Abstract
High mobility group box 1 (HMGB1), a critical damage-associated molecular pattern molecule, has been implicated in several inflammatory diseases and cancer types. The overexpression of HMGB1 protein occurs in prostate cancer, and is closely associated with the proliferation and aggressiveness of tumor cells. However, the underlying mechanisms of HMGB1-induced tumor metastasis in prostate cancer remain unclear. In the present study, it was demonstrated that the expression of HMGB1 was high in prostate cancer samples, particularly in the metastatic tissues. Furthermore, recombinant HMGB1 (rHMGB1) enhanced the invasive and metastatic capabilities of the prostate cancer cells. Molecular phenotype alterations of epithelial-to-mesenchymal transition (EMT) and elevated expression levels of matrix metalloproteinase (MMP)-1, -3 and -10 were observed. In addition, advanced glycosylation end-product specific receptor (RAGE) and its downstream molecule nuclear factor (NF)-κB pathway were activated during rHMGB1-induced metastasis. Silencing RAGE or NF-κB reversed the upregulation of MMP and EMT marker expression levels, thus reducing the migration and invasiveness of tumor cells. Taken together, these results suggest that highly expressed HMGB1 drives EMT and the overexpression of MMP-1, -3, -10 via the RAGE/NF-κB signaling pathways, which facilitates the metastasis of prostate cancer and may be a potential therapeutic target for metastatic prostate cancer.
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Affiliation(s)
- Jingliang Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Shuai Shao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Donghui Han
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yuerong Xu
- Department of Orthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Dian Jiao
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jieheng Wu
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Fa Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yufeng Ge
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Shengjia Shi
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yu Li
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Weihong Wen
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Weijun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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25
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Rohne P, Wolf S, Dörr C, Ringen J, Holtz A, Gollan R, Renner B, Prochnow H, Baiersdörfer M, Koch-Brandt C. Exposure of vital cells to necrotic cell lysates induce the IRE1α branch of the unfolded protein response and cell proliferation. Cell Stress Chaperones 2018; 23:77-88. [PMID: 28687980 PMCID: PMC5741583 DOI: 10.1007/s12192-017-0825-6] [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: 03/29/2017] [Revised: 05/15/2017] [Accepted: 06/16/2017] [Indexed: 10/19/2022] Open
Abstract
Necrosis is a form of cell death that is detrimental to the affected tissue because the cell ruptures and releases its content (reactive oxygen species among others) into the extracellular space. Clusterin (CLU), a cytoprotective extracellular chaperone has been shown to be upregulated in the face of necrosis. We here show that in addition to CLU upregulation, necrotic cell lysates induce JNK/SAPK signaling, the IRE1α branch of the unfolded protein response (UPR), the MAPK/ERK1/2, and the mTOR signaling pathways and results in an enhanced proliferation of the vital surrounding cells. We name this novel response mechanism: Necrosis-induced Proliferation (NiP).
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Affiliation(s)
- Philipp Rohne
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
| | - Steven Wolf
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
- Department of Pathology, The University of Chicago, Chicago, IL USA
| | - Carolin Dörr
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
| | - Julia Ringen
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
| | - Andrew Holtz
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
| | - René Gollan
- Department of Neurology, University Medical Center Mainz, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Benjamin Renner
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
| | - Hans Prochnow
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
- Department of Chemical Biology, Helmholtz Centre for Infection Research GmbH, Braunschweig, Germany
| | - Markus Baiersdörfer
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
| | - Claudia Koch-Brandt
- Institute of Pharmacy and Biochemistry - Therapeutical Life Sciences, Johannes Gutenberg University of Mainz, Johann-Joachim Becherweg 30, 55128 Mainz, Germany
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26
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Gravina GL, Mancini A, Colapietro A, Marampon F, Sferra R, Pompili S, Biordi LA, Iorio R, Flati V, Argueta C, Landesman Y, Kauffman M, Shacham S, Festuccia C. Pharmacological treatment with inhibitors of nuclear export enhances the antitumor activity of docetaxel in human prostate cancer. Oncotarget 2017; 8:111225-111245. [PMID: 29340049 PMCID: PMC5762317 DOI: 10.18632/oncotarget.22760] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/13/2017] [Indexed: 01/08/2023] Open
Abstract
Background and aims Docetaxel (DTX) modestly increases patient survival of metastatic castration-resistant prostate cancer (mCRPC) due to insurgence of pharmacological resistance. Deregulation of Chromosome Region Maintenance (CRM-1)/ exportin-1 (XPO-1)-mediated nuclear export may play a crucial role in this phenomenon. Material and methods Here, we evaluated the effects of two Selective Inhibitor of Nuclear Export (SINE) compounds, selinexor (KPT-330) and KPT-251, in association with DTX by using 22rv1, PC3 and DU145 cell lines with their. DTX resistant derivatives. Results and conclusions We show that DTX resistance may involve overexpression of β-III tubulin (TUBB3) and P-glycoprotein as well as increased cytoplasmic accumulation of Foxo3a. Increased levels of XPO-1 were also observed in DTX resistant cells suggesting that SINE compounds may modulate DTX effectiveness in sensitive cells as well as restore the sensitivity to DTX in resistant ones. Pretreatment with SINE compounds, indeed, sensitized to DTX through increased tumor shrinkage and apoptosis by preventing DTX-induced cell cycle arrest. Basally SINE compounds induce FOXO3a activation and nuclear accumulation increasing the expression of FOXO-responsive genes including p21, p27 and Bim causing cell cycle arrest. SINE compounds-catenin and survivin supporting apoptosis. βdown-regulated Cyclin D1, c-myc, Nuclear sequestration of p-Foxo3a was able to reduce ABCB1 and TUBB3 H2AX levels, prolonged γ expression. Selinexor treatment increased DTX-mediated double strand breaks (DSB), and reduced the levels of DNA repairing proteins including DNA PKc and Topo2A. Our results provide supportive evidence for the therapeutic use of SINE compounds in combination with DTX suggesting their clinical use in mCRPC patients.
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Affiliation(s)
- Giovanni Luca Gravina
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy.,Department of Biotechnological and Applied Clinical Sciences, Division of Radiotherapy, University of L'Aquila, L'Aquila, Italy
| | - Andrea Mancini
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Alessandro Colapietro
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Francesco Marampon
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Roberta Sferra
- Department of Biotechnological and Applied Clinical Sciences, Division of Human Anatomy, University of L'Aquila, L'Aquila, Italy
| | - Simona Pompili
- Department of Biotechnological and Applied Clinical Sciences, Division of Human Anatomy, University of L'Aquila, L'Aquila, Italy
| | - Leda Assunta Biordi
- Department of Biotechnological and Applied Clinical Sciences, Division of Molecular Pathology, University of L'Aquila, L'Aquila, Italy
| | - Roberto Iorio
- Department of Biotechnological and Applied Clinical Sciences, Division of Applied Biology, University of L'Aquila, L'Aquila, Italy
| | - Vincenzo Flati
- Department of Biotechnological and Applied Clinical Sciences, Division of Molecular Pathology, University of L'Aquila, L'Aquila, Italy
| | | | | | | | | | - Claudio Festuccia
- Department of Biotechnological and Applied Clinical Sciences, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
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27
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Klee NS, McCarthy CG, Martinez-Quinones P, Webb RC. Out of the frying pan and into the fire: damage-associated molecular patterns and cardiovascular toxicity following cancer therapy. Ther Adv Cardiovasc Dis 2017; 11:297-317. [PMID: 28911261 PMCID: PMC5933669 DOI: 10.1177/1753944717729141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 08/09/2017] [Indexed: 12/18/2022] Open
Abstract
Cardio-oncology is a new and rapidly expanding field that merges cancer and cardiovascular disease. Cardiovascular disease is an omnipresent side effect of cancer therapy; in fact, it is the second leading cause of death in cancer survivors after recurrent cancer. It has been well documented that many cancer chemotherapeutic agents cause cardiovascular toxicity. Nonetheless, the underlying cause of cancer therapy-induced cardiovascular toxicity is largely unknown. In this review, we discuss the potential role of damage-associated molecular patterns (DAMPs) as an underlying contributor to cancer therapy-induced cardiovascular toxicity. With an increasing number of cancer patients, as well as extended life expectancy, understanding the mechanisms underlying cancer therapy-induced cardiovascular disease is of the utmost importance to ensure that cancer is the only disease burden that cancer survivors have to endure.
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Affiliation(s)
- Nicole S. Klee
- Department of Physiology, Medical College of Georgia at Augusta University, 1120 15 Street, Augusta, GA 30912, USA
| | - Cameron G. McCarthy
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Patricia Martinez-Quinones
- Departments of Physiology and Surgery, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - R. Clinton Webb
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, USA
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28
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Tanabe Y, Tsuda H, Yoshida M, Yunokawa M, Yonemori K, Shimizu C, Yamamoto S, Kinoshita T, Fujiwara Y, Tamura K. Pathological features of triple-negative breast cancers that showed progressive disease during neoadjuvant chemotherapy. Cancer Sci 2017; 108:1520-1529. [PMID: 28474753 PMCID: PMC5497804 DOI: 10.1111/cas.13274] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 04/04/2017] [Accepted: 04/30/2017] [Indexed: 12/31/2022] Open
Abstract
Clinical progressive disease (cPD) occurs during neoadjuvant chemotherapy (NAC) in 3%–5% of triple‐negative breast cancer (TNBC) patients. We aimed to identify the histopathological and immunohistochemical parameters that are correlated with the TNBC that showed cPD. We identified 22 TNBCs that showed cPD during NAC (cPD group) and 80 TNBCs that did not receive NAC (control group). Using surgically resected tumor specimens, we performed histopathologic examinations and immunohistochemical analysis of 11 molecules that appeared relevant to epithelial‐mesenchymal transition (EMT), and basal‐like, molecular apocrine and other features. Metaplastic carcinomas (MPCs) and high proliferation (≥50 mitoses per 10 high‐power fields or ≥50% Ki‐67 score) were more frequent in the cPD than in the control (41% vs 3%, P < 0.001, and 86% vs 50%, P = 0.0049, respectively). Positive cytokeratin 5/6, ZEB1, TWISTNB, vimentin, and HMGB1 expressions and negative androgen receptor were more frequent in the cPD than in the control. By an unsupervised hierarchical cluster analysis incorporating these 11 molecules, the 102 TNBCs were divided into two major clusters and seven subclusters that appeared to correspond to intrinsic subtype, cPD status, histological type, and clinical outcome. In 27% of cPD cases, the MPC component appeared only in the post‐NAC specimens. The combinations of high proliferation, metaplastic features, and immunohistochemical statuses of some EMT and basal‐like markers and androgen receptor appeared to be able to characterize the TNBCs that showed cPD after NAC.
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Affiliation(s)
- Yuko Tanabe
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan.,Department of Medical Oncology and Translational Research, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hitoshi Tsuda
- Department of Basic Pathology, National Defense Medical College, Saitama, Japan.,Pathology and Clinical Laboratories, National Cancer Center Hospital, Tokyo, Japan
| | - Masayuki Yoshida
- Pathology and Clinical Laboratories, National Cancer Center Hospital, Tokyo, Japan
| | - Mayu Yunokawa
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kan Yonemori
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Chikako Shimizu
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Seiichiro Yamamoto
- Health Sociology Division, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Takayuki Kinoshita
- Department of Breast Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - Yasuhiro Fujiwara
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kenji Tamura
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan.,Department of Basic Pathology, National Defense Medical College, Saitama, Japan
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29
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Hotte SJ. Addressing taxane resistance in metastatic castration-resistant prostate cancer: a focus on chaperone proteins. Future Oncol 2017; 13:369-379. [DOI: 10.2217/fon-2016-0279] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Despite the significant survival benefit of taxane therapy in metastatic castration-resistant prostate cancer (mCRPC), all patients inevitably develop treatment resistance. An understanding of resistance mechanisms has led to new therapies for prostate cancer (cabazitaxel, abiraterone and enzalutamide), all of which have improved survival following first-line docetaxel. Another treatment, currently in development, targets the prosurvival molecule clusterin. Custirsen, an antisense molecule that inhibits clusterin production, has shown promise in combination with docetaxel in mCRPC patients at risk for poor outcomes. Although optimal sequence and combination of available therapies is unclear, the heterogeneity of mCRPC suggests a continuing need for personalized treatment regimens and improved abilities to predict which patients will respond to the available treatment options.
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Affiliation(s)
- Sebastien J Hotte
- Department of Oncology, Division of Medical Oncology, Juravinski Cancer Centre, 699 Concession Street, Hamilton, Ontario, L8V 5C2, Canada
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30
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Hou X, Yang C, Zhang L, Hu T, Sun D, Cao H, Yang F, Guo G, Gong C, Zhang X, Tong A, Li R, Zheng Y. Killing colon cancer cells through PCD pathways by a novel hyaluronic acid-modified shell-core nanoparticle loaded with RIP3 in combination with chloroquine. Biomaterials 2017; 124:195-210. [PMID: 28199887 DOI: 10.1016/j.biomaterials.2016.12.032] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 12/20/2016] [Accepted: 12/31/2016] [Indexed: 02/05/2023]
Abstract
Due to extensive apoptosis defects and multidrug resistance, there is great interest regarding non-apoptotic programmed cell death (PCD) pathways, such as lysosomal-mediated programmed cell death (LM-PCD), necroptosis and autophagy. Because there is an intricate effector network among these PCD pathways, it is expected that they may act synergistically in cancer therapy. In this study, chloroquine (CQ) was found to significantly upregulate receptor-interacting protein kinase 3 (RIP3) expression, and RIP3 were involved in CQ-related autophagy. Overexpressed-eGFP-RIP3 co-localized with the selective autophagy receptor p62. mRIP3 overexpression in combination with CQ markedly increased the inhibition rate relative to that observed in the CQ-treatment group. Several experiments, including Hoechst staining, transmission electron microscopy (TEM) observation, the high-mobility group box 1 (HMGB1) release assay, Annexin V/PI staining and immunoblotting of proteins included in PCD pathways, verified that mRIP3 overexpression in combination with CQ induced lysosomal membrane permeabilization (LMP) and necroptosis of cancer cells, leading to cancer cell death. For tumor-targeted delivery, hyaluronic acid (HA)-modified, lipid-coated PLGA nanoparticles loaded with mRIP3-pDNA were prepared and characterized using a particle sizer, differential scanning calorimetry (DSC) and TEM. The nanoparticles exhibited ideal biocompatibility and good tumor-targeting efficiency, and the tumor inhibition rate of HA-Lip-PEI-mRIP3-PLGA-NPs + CQ was 80.2% in the CT26 mouse model. In this study, we attempted to treat tumors by inducing several alternative PCD pathways to shed light on the combination therapy of alternative PCD inducers.
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Affiliation(s)
- Xueyan Hou
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Chengli Yang
- Department of Clinical Pharmacy, School of Pharmacy, Zunyi Medical University, 6#, Xuefu Xi Road, Zunyi, Guizhou, 563006, PR China
| | - Lijing Zhang
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou, Henan, 450052, PR China
| | - Tingting Hu
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Dan Sun
- College of Life Sciences, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Hua Cao
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Fan Yang
- Department of Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Gang Guo
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Changyang Gong
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Xiaoning Zhang
- Laboratory of Pharmaceutics, School of Medicine, Tsinghua University, 30#, Shuangqing Road, Haidian Dist, Beijing, 100084, PR China
| | - Aiping Tong
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Rui Li
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China
| | - Yu Zheng
- State Key Laboratory of Biotherapy/Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, 17#, Section 3, Ren Min Nan Road, Chengdu, Sichuan, 610041, PR China.
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Therapeutic targeting of myeloid-derived suppressor cells involves a novel mechanism mediated by clusterin. Sci Rep 2016; 6:29521. [PMID: 27405665 PMCID: PMC4942787 DOI: 10.1038/srep29521] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 06/17/2016] [Indexed: 02/07/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) constitute a key checkpoint that impedes tumor immunity against cancer. Chemotherapeutic intervention of MDSCs has gained ground as a strategy for cancer therapy but its mechanism remains obscure.We report here a unique mechanism by which monocytic (M)-MDSCs are spared, allowing them to polarize towards M1 macrophages for reactivation of immunity against breast cancer. We first demonstrated that curcumin, like docetaxel (DTX), can selectively target CD11b+Ly6G+Ly6Clow granulocytic (G)-MDSCs, sparing CD11b+Ly6G−Ly6Chigh M-MDSCs, with reduced tumor burden in 4T1-Neu tumor-bearing mice. Curcumin treatment polarized surviving M-MDSCs toward CCR7+ Dectin-1−M1 cells, accompanied by IFN-γ production and cytolytic function in T cells. Selective M-MDSC chemoresistence to curcumin and DTX was mediated by secretory/cytoplasmic clusterin (sCLU). sCLU functions by trapping Bax from mitochondrial translocation, preventing the apoptotic cascade. Importantly, sCLU was only found in M-MDSCs but not in G-MDSCs. Knockdown of sCLU in M-MDSCs and RAW264.7 macrophages was found to reverse their natural chemoresistance. Clinically, breast cancer patients possess sCLU expression only in mature CD68+ macrophages but not in immature CD33+ immunosuppressive myeloid cells infiltrating the tumors. We thus made the seminal discovery that sCLU expression in M-MDSCs accounts for positive immunomodulation by chemotherapeutic agents.
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Damage-associated molecular patterns in cancer: a double-edged sword. Oncogene 2016; 35:5931-5941. [PMID: 27086930 PMCID: PMC5119456 DOI: 10.1038/onc.2016.104] [Citation(s) in RCA: 293] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/15/2016] [Accepted: 01/21/2016] [Indexed: 12/14/2022]
Abstract
Damage-associated molecular patterns (DAMPs) are released in response to cell
death and stress, and are potent triggers of sterile inflammation. Recent evidence
suggests that DAMPs may also have a key role in the development of cancer as well as in
the host response to cytotoxic anti-tumor therapy. As such, DAMPs may exert protective
functions by alerting the immune system to the presence of dying tumor cells, thereby
triggering immunogenic tumor cell death. On the other hand, cell death and release of
DAMPs may also trigger chronic inflammation and thereby promote the development or
progression of tumors. Here, we will review the contribution of candidate DAMPs and their
receptors and discuss the evidence for DAMPs as tumor-promoting and anti-tumor effectors
as well as unsolved questions such as DAMP release from non-tumor cells as well as the
existence of tumor-specific DAMPs.
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Involvement of HMGB1 in Resistance to Tumor Vessel-Targeted, Monoclonal Antibody-Based Immunotherapy. J Immunol Res 2016; 2016:3142365. [PMID: 26925422 PMCID: PMC4748100 DOI: 10.1155/2016/3142365] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 12/29/2015] [Indexed: 12/22/2022] Open
Abstract
High mobility group box 1 (HMGB1) is a member of the “danger associated molecular patterns” (DAMPs) than can localize in various compartments of the cell (from the nucleus to the cell surface) and subserve different functions accordingly. HMGB1 is implicated in maintenance of genomic stability, autophagy, immune regulation, and tumor growth. HMGB1-induced autophagy promotes tumor resistance to chemotherapy, as shown in different models of malignancy, for example, osteosarcoma, leukemia, and gastric cancer. To the best of our knowledge, there is virtually no information on the relationships between HMGB1 and resistance to immunotherapy. A recent study from our group has shed new light on this latter issue. We have demonstrated that targeting of tumor-derived endothelial cells with an anti-human CD31 monoclonal antibody in a human neuroblastoma model was unsuccessful due to a complex chain of events involving the participation of HMGB1. These results are discussed in detail since they provide the first evidence for a role of HMGB1 in resistance of tumor cells to monoclonal antibody-based immunotherapy.
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