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Chiu FC, Kuo HM, Yu CL, Selvam P, Su IL, Tseng CC, Yuan CH, Wen ZH. Marine-derived antimicrobial peptide piscidin-1 triggers extrinsic and intrinsic apoptosis in oral squamous cell carcinoma through reactive oxygen species production and inhibits angiogenesis. Free Radic Biol Med 2024; 220:28-42. [PMID: 38679300 DOI: 10.1016/j.freeradbiomed.2024.04.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/01/2024]
Abstract
Cancer of the head and neck encompasses a wide range of cancers, including oral and oropharyngeal cancers. Oral cancer is often diagnosed at advanced stages and has a dismal prognosis. Piscidin-1, a marine antimicrobial peptide (AMP) containing approximately 22 amino acids, also exhibits significant anticancer properties. We investigated the possible anti-oral cancer effects of piscidin-1 and clarified the mechanisms underlying these effects. We treated the oral squamous cell carcinoma cell lines OC2 and SCC4 with piscidin-1. Cell viability and the expression of different hallmark apoptotic molecules, including reactive oxygen species (ROS), were tested using the appropriate MTT assay, flow cytometry and western blotting assays, and human umbilical vein endothelial cell (HUVEC) wound healing, migration, and tube formation (angiogenesis) assays. Piscidin-1 increases cleaved caspase 3 levels to induce apoptosis. Piscidin-1 also increases ROS levels and intensifies oxidative stress in the endoplasmic reticulum and mitochondria, causing mitochondrial dysfunction. Additionally, it decreases the oxygen consumption rates and activity of mitochondrial complexes I-V. As expected, the antioxidants MitoTEMPOL and N-acetylcysteine reduce piscidin-1-induced ROS generation and intracellular calcium accumulation. Piscidin-1 also inhibits matrix metalloproteinase (MMP)-2/-9 expression in HUVECs, affecting migration and tube formation angiogenesis. We demonstrated that piscidin-1 can promote apoptosis via both intrinsic and extrinsic apoptotic pathways and findings indicate that piscidin-1 has anti-proliferative and anti-angiogenic properties in oral cancer treatment. Our study on piscidin-1 thus provides a basis for future translational anti-oral cancer drug research and a new theoretical approach for anti-oral cancer clinical research.
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Affiliation(s)
- Fu-Ching Chiu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Hsiao-Mei Kuo
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan; Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833301, Taiwan
| | - Chen-Ling Yu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - Padhmavathi Selvam
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan
| | - I-Li Su
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan; Division of Cardiovascular Surgery, Department of Surgery, Antai Medical Care Corporation, Antai Tian-Sheng Memorial Hospital, Pingtung, 92842, Taiwan
| | - Chung-Chih Tseng
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan; Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, 80284, Taiwan
| | - Chien-Han Yuan
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan; Department of Otolaryngology, Kaohsiung Armed Forces General Hospital, Kaohsiung, 80284, Taiwan; Department of Otolaryngology, National Defense Medical Center, Taipei 11490, Taiwan.
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.
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Bauso LV, La Fauci V, Munaò S, Bonfiglio D, Armeli A, Maimone N, Longo C, Calabrese G. Biological Activity of Natural and Synthetic Peptides as Anticancer Agents. Int J Mol Sci 2024; 25:7264. [PMID: 39000371 PMCID: PMC11242495 DOI: 10.3390/ijms25137264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 06/25/2024] [Accepted: 06/28/2024] [Indexed: 07/16/2024] Open
Abstract
Cancer is one of the leading causes of morbidity and death worldwide, making it a serious global health concern. Chemotherapy, radiotherapy, and surgical treatment are the most used conventional therapeutic approaches, although they show several side effects that limit their effectiveness. For these reasons, the discovery of new effective alternative therapies still represents an enormous challenge for the treatment of tumour diseases. Recently, anticancer peptides (ACPs) have gained attention for cancer diagnosis and treatment. ACPs are small bioactive molecules which selectively induce cancer cell death through a variety of mechanisms such as apoptosis, membrane disruption, DNA damage, immunomodulation, as well as inhibition of angiogenesis, cell survival, and proliferation pathways. ACPs can also be employed for the targeted delivery of drugs into cancer cells. With over 1000 clinical trials using ACPs, their potential for application in cancer therapy seems promising. Peptides can also be utilized in conjunction with imaging agents and molecular imaging methods, such as MRI, PET, CT, and NIR, improving the detection and the classification of cancer, and monitoring the treatment response. In this review we will provide an overview of the biological activity of some natural and synthetic peptides for the treatment of the most common and malignant tumours affecting people around the world.
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Affiliation(s)
- Luana Vittoria Bauso
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Valeria La Fauci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Serena Munaò
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Desirèe Bonfiglio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Alessandra Armeli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Noemi Maimone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Clelia Longo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
| | - Giovanna Calabrese
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres, 31, 98168 Messina, Italy
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Librizzi M, Martino C, Mauro M, Abruscato G, Arizza V, Vazzana M, Luparello C. Natural Anticancer Peptides from Marine Animal Species: Evidence from In Vitro Cell Model Systems. Cancers (Basel) 2023; 16:36. [PMID: 38201464 PMCID: PMC10777987 DOI: 10.3390/cancers16010036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Anticancer peptides are short and structurally heterogeneous aminoacidic chains, which display selective cytotoxicity mostly against tumor cells, but not healthy cells, based on their different cell surface properties. Their anti-tumoral activity is carried out through interference with intracellular homeostasis, such as plasmalemma integrity, cell cycle control, enzymatic activities and mitochondrial functions, ultimately acting as angiogenesis-, drug resistance- and metastasis-inhibiting agents, immune stimulators, differentiation inducers and necrosis or extrinsic/intrinsic apoptosis promoters. The marine environment features an ever-growing level of biodiversity, and seas and oceans are poorly exploited mines in terms of natural products of biomedical interest. Adaptation processes to extreme and competitive environmental conditions led marine species to produce unique metabolites as a chemical strategy to allow inter-individual signalization and ensure survival against predators, infectious agents or UV radiation. These natural metabolites have found broad use in various applications in healthcare management, due to their anticancer, anti-angiogenic, anti-inflammatory and regeneration abilities. The aim of this review is to pick selected studies that report on the isolation of marine animal-derived peptides and the identification of their anticancer activity in in vitro cultures of cancer cells, and list them with respect to the taxonomical hierarchy of the source organism.
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Affiliation(s)
- Mariangela Librizzi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
| | - Chiara Martino
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Manuela Mauro
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
| | - Giulia Abruscato
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
| | - Vincenzo Arizza
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Mirella Vazzana
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Claudio Luparello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, 90128 Palermo, Italy; (M.L.); (C.M.); (M.M.); (V.A.); (M.V.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
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Wen ZH, Kuo HM, Shih PC, Hsu LC, Chuang JMJ, Chen NF, Sun HW, Liu HT, Sung CS, Chen WF. Isoaaptamine increases ROS levels causing autophagy and mitochondria-mediated apoptosis in glioblastoma multiforme cells. Biomed Pharmacother 2023; 160:114359. [PMID: 36753955 DOI: 10.1016/j.biopha.2023.114359] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023] Open
Abstract
Glioblastoma multiforme (GBM) is a common central nervous system disease with a poor prognosis; its five-year survival rate is <5 %, and its median survival of 15 months. Current treatment includes chemotherapy with temozolomide, which is ineffective against GBM, suggesting an urgent need to develop novel therapies. This study evaluated isoaaptamine and aaptamine in the GBM cell lines for cell viability; GBM 8401, U87 MG, U138 MG, and T98G. Our findings showed that isoaaptamine was more potent than its iso-form aaptamine in these four cell lines, and GBM 8401 was most sensitive to isoaaptamine. The study in GBM 8401 cells showed that apoptosis was induced by isoaaptamine with increased cleaved caspase 3 and poly ADP-ribose polymerase (PARP). Moreover, isoaaptamine enhanced oxidative stress by increasing the levels of reactive oxygen species (ROS), inhibiting mitochondrial and cellular superoxidase dismutases (SOD1&2), peroxidase and an anti-apoptotic protein (Bcl-2), and disrupting mitochondrial membrane potential. In addition, the oxygen consumption rates and activities of mitochondrial complexes I-V were significantly reduced. Mitochondrial dynamics were prone to fission instead of fusion after isoaaptamine treatment, and ATP synthesis was ablated. Also, autophagy-related acidic organelle vesicles were formed, indicating autophagy was triggered. Overall, isoaaptamine-induced ROS overproduction in mitochondria could cause mitochondrial dysfunction, apoptosis, and autophagy in the GBM cells.
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Affiliation(s)
- Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Hsiao-Mei Kuo
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Po-Chang Shih
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 83301, Taiwan; Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ling-Chen Hsu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Institute Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300044, Taiwan
| | - Jimmy Ming-Jung Chuang
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 83301, Taiwan
| | - Nan-Fu Chen
- Division of Neurosurgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; Center for General Education, Cheng Shiu University, Kaohsiung 833301, Taiwan
| | - Hsi-Wen Sun
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Institute of Biochemical and Biomedical Engineering, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Hsin-Tzu Liu
- Department of Medical Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970473, Taiwan
| | - Chun-Sung Sung
- Department of Anesthesiology, Division of Pain Management, Taipei Veterans General Hospital, Taipei 112201, Taiwan; School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Wu-Fu Chen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung 83301, Taiwan.
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5
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Antimicrobial Peptides Mediate Apoptosis by Changing Mitochondrial Membrane Permeability. Int J Mol Sci 2022; 23:ijms232112732. [PMID: 36361521 PMCID: PMC9653759 DOI: 10.3390/ijms232112732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 01/25/2023] Open
Abstract
Changes in mitochondrial membrane permeability are closely associated with mitochondria-mediated apoptosis. Antimicrobial peptides (AMPs), which have been found to enter cells to exert physiological effects, cause damage to the mitochondria. This paper reviews the molecular mechanisms of AMP-mediated apoptosis by changing the permeability of the mitochondrial membrane through three pathways: the outer mitochondrial membrane (OMM), inner mitochondrial membrane (IMM), and mitochondrial permeability transition pore (MPTP). The roles of AMPs in inducing changes in membrane permeability and apoptosis are also discussed. Combined with recent research results, the possible application prospects of AMPs are proposed to provide a theoretical reference for the development of AMPs as therapeutic agents for human diseases.
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6
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Wang Y, Wang W, Yu E, Zhuang W, Sun X, Wang H, Li Q. Preparation of a camptothecin analog FLQY2 self-micelle solid dispersion with improved solubility and bioavailability. J Nanobiotechnology 2022; 20:402. [PMID: 36064403 PMCID: PMC9446799 DOI: 10.1186/s12951-022-01596-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/31/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND 7-p-trifluoromethylphenyl-FL118 (FLQY2) is a camptothecin analog with excellent antitumor efficacy against various solid tumors. However, its poor solubility and low bioavailability limited the development of the drug. Polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer (Soluplus®), an emerging carrier for preparing solid dispersion (SD), encapsulated FLQY2 to circumvent the above limitations. RESULTS In this project, FLQY2-SD was prepared by solvent evaporation method and self-assembled into micelles in aqueous solutions owing to the amphiphilic nature of Soluplus®. The physicochemical characterizations demonstrated that FLQY2 existed in a homogeneous amorphous form in SD and was rapidly dissolved. The micelles did not affect cytotoxicity or cellular uptake of FLQY2 in vitro, and the oral bioavailability was increased by 12.3-fold compared to the FLQY2 cyclodextrin suspension. The pharmacokinetics of FLQY2-SD showed rapid absorption, accumulation in the intestine, and slow elimination via fecal. Metabolite identification studies showed 14 novel metabolites were identified, including 12 phase I metabolites (M1-M12) and 2 phase II metabolites (M13-M14), of which M2 (oxidation after decarboxylation) and M7 (dioxolane ring cleavage) were the primary metabolites in the positive mode and negative mode, respectively. The tumor growth inhibition rate (TGI, 81.1%) of FLQY2-SD (1.5 mpk, p.o./QW) in tumor-bearing mice after oral administration was higher than that of albumin-bound Paclitaxel (15 mpk, i.v./Q4D) and Irinotecan hydrochloride (100 mpk, i.p./QW). CONCLUSIONS The successful preparation, pharmacokinetics, and pharmacodynamics studies of FLQY2-SD showed that the solubility and bioavailability of FLQY2 were improved, which facilitated the further druggability development of FLQY2.
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Affiliation(s)
- Yi Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China
| | - Wenchao Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China
| | - Endian Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China
| | - Wenya Zhuang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China
| | - Xuanrong Sun
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China
| | - Hong Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China
| | - Qingyong Li
- College of Pharmaceutical Sciences, Zhejiang University of Technology, No. 1 Gongda Road, Hangzhou, 313000, People's Republic of China.
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Kuo TJ, Jean YH, Shih PC, Cheng SY, Kuo HM, Lee YT, Lai YC, Tseng CC, Chen WF, Wen ZH. Stellettin B-Induced Oral Cancer Cell Death via Endoplasmic Reticulum Stress-Mitochondrial Apoptotic and Autophagic Signaling Pathway. Int J Mol Sci 2022; 23:ijms23158813. [PMID: 35955957 PMCID: PMC9368952 DOI: 10.3390/ijms23158813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 12/24/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) affects tens of thousands of people worldwide. Despite advances in cancer treatment, the 5-year survival rate of patients with late-stage OSCC is low at 50–60%. Therefore, the development of anti-OSCC therapy is necessary. We evaluated the effects of marine-derived triterpene stellettin B in human OC2 and SCC4 cells. Stellettin B dose-dependently decreased the viability of both cell lines, with a significant reduction in OC2 cells at ≥0.1 µM at 24 and 48 h, and in SCC4 cells at ≥1 µM at 24 and 48 h. Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL)-positive cells were significantly observed at 20 µM of stellettin B at 48 h, with the overexpression of cleaved caspase3 and cleaved poly(ADP-ribose) polymerase (PARP). Moreover, mitochondrial respiratory functions were ablated by stellettin B. Autophagy-related LC3-II/LC3-I ratio and Beclin-1 proteins were increased, whereas p62 was decreased. At 20 µM at 48 h, the expression levels of the endoplasmic reticulum (ER) stress biomarkers calnexin and BiP/GRP78 were significantly increased and mitogen-activated protein kinase (MAPK) signaling pathways were activated. Further investigation using the autophagy inhibitor 3-methyladenine (3-MA) demonstrated that it alleviated stellettin B-induced cell death and autophagy. Overall, our findings show that stellettin B induces the ER stress, mitochondrial stress, apoptosis, and autophagy, causing cell death of OSCC cells.
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Affiliation(s)
- Tsu-Jen Kuo
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Yen-Hsuan Jean
- Section of Orthopedics, Department of Surgery, Antai Medical Care Corporation Antai Tian-Sheng Memorial Hospital, Pingtung 92842, Taiwan
| | - Po-Chang Shih
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Shu-Yu Cheng
- Department of Environmental Protection, Green Technology Research Institute, CPC Corporation, No. 2, Zuonan Rd., Nan-Tzu District, Kaohsiung 81126, Taiwan
| | - Hsiao-Mei Kuo
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Yi-Ting Lee
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Yu-Cheng Lai
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Department of Orthopedics, Asia University Hospital, Taichung 41354, Taiwan
| | - Chung-Chih Tseng
- Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Wu-Fu Chen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
- Correspondence: (W.-F.C.); (Z.-H.W.)
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Correspondence: (W.-F.C.); (Z.-H.W.)
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8
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Sinularin Induces Oxidative Stress-Mediated Apoptosis and Mitochondrial Dysfunction, and Inhibits Angiogenesis in Glioblastoma Cells. Antioxidants (Basel) 2022; 11:antiox11081433. [PMID: 35892635 PMCID: PMC9394238 DOI: 10.3390/antiox11081433] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 12/02/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a cancer of largely unknown cause that leads to a 5-year survival rate of approximately 7% in the United States. Current treatment strategies are not effective, indicating a strong need for the development of novel therapies. In this study, the outcomes of sinularin, a marine-derived product, were evaluated against GBM. Our cellular studies using GBM cells revealed that sinularin induces cell death. The measured half maximal inhibitory concentrations (IC50) values ranged from 30 to 6 μM at 24–72 h. Cell death was induced via the generation of ROS leading to mitochondria-mediated apoptosis. This was evidenced by annexin V/propidium iodine staining and an upregulation of cleaved forms of the pro-apoptotic proteins caspase 9, 3, and PARP, and supported by CellROXTM Green, MitoSOXTM Red, and CM-H2DCFDA staining methods. In addition, we observed a downregulation of the antioxidant enzymes SOD1/2 and thioredoxin. Upon treatment with sinularin at the ~IC50 concentration, mitochondrial respiration capacities were significantly reduced, as shown by measuring the oxygen consumption rates and enzymatic complexes of oxidative phosphorylation. Intriguingly, sinularin significantly inhibited indicators of angiogenesis such as vessel tube formation, cell migration, and cell mobility in human umbilical vein endothelial cells or the fusion cell line EA.Hy926. Lastly, in a transgenic zebrafish model, intersegmental vessel formation was also significantly inhibited by sinularin treatment. These findings indicate that sinularin exerts anti-brain cancer properties that include apoptosis induction but also antiangiogenesis.
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Shih PC. The role of the STAT3 signaling transduction pathways in radioresistance. Pharmacol Ther 2022; 234:108118. [PMID: 35085605 DOI: 10.1016/j.pharmthera.2022.108118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/25/2021] [Accepted: 01/18/2022] [Indexed: 12/11/2022]
Abstract
The efficacy of radiotherapy has long known to be limited by the emergence of resistance. The four Rs of radiotherapy (DNA damage repair, reoxygenation, redistribution of the cell cycle, and repopulation) are generally accepted concepts in radiobioolgy. Recent studies have strongly linked signal transducer and activator of transcription 3 (STAT3) to the regulation of cancer stemness and radioresistance. In particular, a STAT3 pathway inhibitor napabucasin, claimed to be the first cancer stemness antagonist in clinical trials, strengthens the link. However, no reviews connect STAT3 with the four Rs of radiotherapy. Herein, the evidence-based role of STAT3 in radioresistance is discussed in relation to the four Rs of radiotherapy. The proposed mechanisms include upstream and downstream effector proteins of STAT3, including FOXM1, MELK, NEK2, AKT, EZH2, and HIF1α. Downstream transcriptional products of the mechanistically-related proteins are involved in cancer stemness, anti-apoptosis, and the four Rs of radiotherapy. Utilizing selective inhibitors of the mechanistically-related proteins has shown promising antagonism of radioresistance, suggesting that the expression levels of these proteins may be biomarkers for the prediction of radiotherapeutic outcomes, and that this molecular mechanism may provide a rational axis through which to treat radioresistance.
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Affiliation(s)
- Po-Chang Shih
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, Bloomsbury, London WC1N 1AX, UK; Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
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10
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Pardaxin Activates Excessive Mitophagy and Mitochondria-Mediated Apoptosis in Human Ovarian Cancer by Inducing Reactive Oxygen Species. Antioxidants (Basel) 2021; 10:antiox10121883. [PMID: 34942985 PMCID: PMC8698909 DOI: 10.3390/antiox10121883] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/17/2021] [Accepted: 11/23/2021] [Indexed: 12/26/2022] Open
Abstract
Most ovarian cancer (OC) patients are diagnosed with stage III or higher disease, resulting in a poor prognosis. Currently, paclitaxel combined with carboplatin shows the best treatment outcome for OC. However, no effective drug is available for patients that do not respond to treatment; thus, new drugs for OC are needed. We evaluated the antimicrobial peptide, pardaxin, in PA-1 and SKOV3 cells. Pardaxin induced apoptosis as determined by MTT and TUNEL assays, as well as activation of caspases-9/3, Bid, t-Bid, and Bax, whereas Bcl-2 was downregulated. The IC50 values for pardaxin were 4.6-3.0 μM at 24 and 48 h. Mitochondrial and intracellular reactive oxygen species (ROS) were overproduced and associated with disrupted mitochondrial membrane potential and respiratory capacity. Additionally, the mitochondrial network was fragmented with downregulated fusogenic proteins, MFN1/2 and L-/S-OPA1, and upregulated fission-related proteins, DRP1 and FIS1. Autophagy was also activated as evidenced by increased expression of autophagosome formation-related proteins, Beclin, p62, and LC3. Enhanced mitochondrial fragmentation and autophagy indicate that mitophagy was activated. ROS-induced cytotoxicity was reversed by the addition of N-acetylcysteine, confirming ROS overproduction as a contributor. Taken together, pardaxin demonstrated promising anticancer activity in OC cells, which warrants further preclinical development of this compound.
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Ko CY, Shih PC, Huang PW, Lee YH, Chen YF, Tai MH, Liu CH, Wen ZH, Kuo HM. Sinularin, an Anti-Cancer Agent Causing Mitochondria-Modulated Apoptosis and Cytoskeleton Disruption in Human Hepatocellular Carcinoma. Int J Mol Sci 2021; 22:ijms22083946. [PMID: 33920454 PMCID: PMC8069418 DOI: 10.3390/ijms22083946] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/03/2021] [Accepted: 04/09/2021] [Indexed: 12/18/2022] Open
Abstract
Liver cancer remains a leading cause of death, despite advances in anti-cancer therapies. To develop novel drugs, natural products are being considered as a good source for exploration. In this study, a natural product isolated from a soft coral was applied to evaluate its anti-cancer activities in hepatocellular carcinoma SK-HEP-1 cells. Sinularin was determined to have half-maximal inhibitory concentration (IC50) values of ~10 μM after 24, 48, and 72 h. The TUNEL assay and annexin V/PI staining results showed that sinularin induced DNA fragmentation and apoptosis, respectively. An investigation at the molecular level demonstrated that the expression levels of cleaved caspases 3/9 were significantly elevated at 10 μM sinularin. Mitochondrial and intracellular reactive oxygen species (ROS) levels were significantly increased following sinularin treatment, which also affected the mitochondrial membrane potential. In addition, it significantly lowered the mitochondrial respiration parameters and extracellular acidification rates at 10 μM. Further investigation showed that sinularin significantly attenuated wound healing, cell migration, and potential colony formation at 10 μM. Fluorescence microscopic observations showed that the distribution of F-actin filaments was significantly altered at 10 μM sinularin. Supported by Western blot analyses, the expression levels of AKT, p-ERK (extracellular-signal-related kinase), vimentin and VEGF were significantly down-regulated, whereas p-p38, pJNK and E-cadherin were significantly increased. Overall, at the IC50 concentration, sinularin was able to significantly affect SK-HEP-1 cells.
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Affiliation(s)
- Chou-Yuan Ko
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; (C.-Y.K.); (Y.-F.C.)
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Po-Chang Shih
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-C.S.); (P.-W.H.); (Y.-H.L.)
- UCL School of Pharmacy, University College London, Bloomsbury, London WC1N 1AX, UK
| | - Po-Wei Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-C.S.); (P.-W.H.); (Y.-H.L.)
| | - Yi-Hsin Lee
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-C.S.); (P.-W.H.); (Y.-H.L.)
| | - Yen-Fu Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan; (C.-Y.K.); (Y.-F.C.)
| | - Ming-Hong Tai
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
- Center for Neuroscience, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chi-Hao Liu
- Division of Nephrology, Department of Interanl Medicine, Kashsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan;
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-C.S.); (P.-W.H.); (Y.-H.L.)
- Correspondence: (Z.-H.W.); (H.-M.K.); Tel.: +886-7-5252000 (ext. 5038) (Z.-H.W. & H.-M.K.); Fax: +886-7-5252021 (Z.-H.W. & H.-M.K.)
| | - Hsiao-Mei Kuo
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-C.S.); (P.-W.H.); (Y.-H.L.)
- Center for Neuroscience, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Correspondence: (Z.-H.W.); (H.-M.K.); Tel.: +886-7-5252000 (ext. 5038) (Z.-H.W. & H.-M.K.); Fax: +886-7-5252021 (Z.-H.W. & H.-M.K.)
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