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Tian J, Fu W, Xie Z, Zhao Y, Yang H, Zhao J. Methionine enkephalin (MENK) protected macrophages from ferroptosis by downregulating HMOX1 and ferritin. Proteome Sci 2024; 22:2. [PMID: 38245706 PMCID: PMC10799539 DOI: 10.1186/s12953-024-00228-x] [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: 05/02/2023] [Accepted: 01/06/2024] [Indexed: 01/22/2024] Open
Abstract
OBJECTIVE The aim of this work was to investigate the immunological effect of MENK by analyzing the protein spectrum and bioinformatics of macrophage RAW264.7, and to explore the relationship between macrophage and ferroptosis. RESULT We employed proteomic analysis to identify differentially expressed proteins (DEPs) between macrophages and macrophages intervened by MENK. A total of 208 DEPs were identified. Among these, 96 proteins had upregulated expression and 112 proteins had downregulated expression. Proteomic analysis revealed a significant enrichment of DEPs associated with iron metabolism. The identification of hub genes was conducted using KEGG pathway diagrams and protein-protein interaction (PPI) analysis. The hub genes identified in this study include HMOX1 and Ferritin (FTH and FTL). A correlation was established between HMOX1, FTH, and FTL in the GO and KEGG databases. The results of PCR, WB and immunofluorescence showed that MENK downregulated the level of HMOX1 and FTH. CONCLUSION MENK had the potential to become an adjuvant chemotherapy drug by regulating iron metabolism in macrophages, reducing levels of HMOX1 and ferritin. We proposed an innovative research direction on the therapeutic potential of MENK, focusing on the relationship between ferroptosis and macrophage activity.
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Affiliation(s)
- Jing Tian
- Department of Immunology, School of Basic Medical Science, Jinzhou Medical University, Jinzhou, Liaoning, 121000, China.
| | - Wenrui Fu
- Graduate College, Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
| | - Zifeng Xie
- First Clinical Medical College, Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
| | - Yuanlong Zhao
- First Clinical Medical College, Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
| | - Haochen Yang
- First Clinical Medical College, Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
| | - Jiafan Zhao
- First Clinical Medical College, Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
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Hankins GR, Harris RT. The Opioid Growth Factor in Growth Regulation and Immune Responses in Cancer. ADVANCES IN NEUROBIOLOGY 2024; 35:45-85. [PMID: 38874718 DOI: 10.1007/978-3-031-45493-6_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
It has become apparent that endogenous opioids act not only as neurotransmitters and neuromodulators, but have multiple functions in the body. Activation of the opioid system by opiate drugs is associated with a risk of cancer development through direct stimulation of tumor cell proliferation and through immunosuppression. In contrast, the endogenous peptide opioid [Met5]-enkephalin, now commonly referred to as Opioid Growth Factor (OGF), negatively regulates cell proliferation in a wide number of cells during development, homeostasis, and neoplasia. This action is mediated through the opioid growth factor receptor, originally designated the zeta (ζ) opioid receptor. Further, contrary to the traditional notion of opiates as immunosuppressive, endogenous OGF has been shown to possess a number of positive immunomodulatory properties and may provide a beneficial effect in cancer by augmenting the activity of cells involved in both innate and acquired immunity. Taken together, the evidence supports consideration of opioid peptides such as OGF as new strategies for cancer therapy.
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Affiliation(s)
- Gerald R Hankins
- Department of Biology, West Virginia State University, Institute, WV, USA.
| | - Robert T Harris
- Department of Biology, West Virginia State University, Institute, WV, USA
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Qu N, Meng Y, Zhai J, Griffin N, Shan Y, Gao Y, Shan F. Methionine enkephalin inhibited cervical cancer migration as well as invasion and activated CD11b + NCR1 + NKs of tumor microenvironment. Int Immunopharmacol 2023; 124:110967. [PMID: 37741126 DOI: 10.1016/j.intimp.2023.110967] [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: 09/14/2023] [Revised: 09/16/2023] [Accepted: 09/17/2023] [Indexed: 09/25/2023]
Abstract
This study was to study the role of methionine enkephalin (menk) in cell invasion and migration as well as NK cells activation of tumor microenvironment in cervical cancer. The results showed that menk inhibited cervical cancer migration and invasion. In addition, we found menk affected epithelial to mesenchymal transition (EMT) related indicators, with increasing E-cadherin level, decreasing N-cadherin and vimentin level. Through in vivo mouse model, we found that menk IFNγ and NKP46 expression was upregulated in tumor tissues by menk compared with controls, while LAG3 expression was inhibited by menk, besides, there was an upregulation of CD11b+ NCR1+ NKs of tumor microenvironment in cervical cancer. Therefore, we concluded that menk inhibited cancer migration and invasion via affecting EMT related indicators and activated CD11b+ NCR1+ NKs of tumor microenvironment in cervical cancer, laying a theoretical foundation for the further clinical treatment of menk.
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Affiliation(s)
- Na Qu
- Department of Gynecological Radiotherapy Ward, Cancer Hospital of Dalian University of Technology (Liaoning Cancer Institute and Hospital), No. 44, Xiaoheyan Road, Shenyang 110042, Liaoning Province, China
| | - Yiming Meng
- Central Laboratory, Cancer Hospital of Dalian University of Technology (Liaoning Cancer Institute and Hospital), No. 44, Xiaoheyan Road, Shenyang 110042, Liaoning Province, China
| | - Jingbo Zhai
- Key Laboratory of Zoonose Prevention and Control at Universities of Inner Mongolia Autonomous Region, Medical College, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Noreen Griffin
- Biostax Inc. 1317 Edgewater Dr., Ste 4882, Orlando, FL 32804, USA
| | - Yuanye Shan
- Biostax Inc. 1317 Edgewater Dr., Ste 4882, Orlando, FL 32804, USA
| | - Yuhua Gao
- Department of Gynecological Radiotherapy Ward, Cancer Hospital of Dalian University of Technology (Liaoning Cancer Institute and Hospital), No. 44, Xiaoheyan Road, Shenyang 110042, Liaoning Province, China.
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, No. 77, Puhe Road, Shenyang 110122, Liaoning Province, China.
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Tian J, Fu W, Xie Z, Wang X, Miao M, Shan F, Yu X. Methionine enkephalin(MENK) upregulated memory T cells in anti-influenza response. BMC Immunol 2023; 24:38. [PMID: 37828468 PMCID: PMC10571428 DOI: 10.1186/s12865-023-00573-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 09/20/2023] [Indexed: 10/14/2023] Open
Abstract
Novel prophylactic drugs and vaccination strategies for protection against influenza virus should induce specific effector T-cell immune responses in pulmonary airways and peripheral lymphoid organs. Designing approaches that promote T-cell-mediated responses and memory T-cell differentiation would strengthen host resistance to respiratory infectious diseases. The results of this study showed that pulmonary delivery of MENK via intranasal administration reduced viral titres, upregulated opioid receptor MOR and DOR, increased the proportions of T-cell subsets including CD8+ T cells, CD8+ TEM cells, NP/PA-effector CD8+ TEM cells in bronchoalveolar lavage fluid and lungs, and CD4+/CD8+ TCM cells in lymph nodes to protect mice against influenza viral challenge. Furthermore, we demonstrated that, on the 10th day of infection, the proportions of CD4+ TM and CD8+ TM cells were significantly increased, which meant that a stable TCM and TEM lineage was established in the early stage of influenza infection. Collectively, our data suggested that MENK administered intranasally, similar to the route of natural infection by influenza A virus, could exert antiviral activity through upregulating T-cell-mediated adaptive immune responses against influenza virus.
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Affiliation(s)
- Jing Tian
- Department of Immunology, School of Basic Medical Science, Jinzhou Medical University, Jinzhou, 121001, China
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, China
| | - Wenrui Fu
- Department of Immunology, School of Basic Medical Science, Jinzhou Medical University, Jinzhou, 121001, China
| | - Zifeng Xie
- Department of Immunology, School of Basic Medical Science, Jinzhou Medical University, Jinzhou, 121001, China
| | - Xiaonan Wang
- Biostax Inc., 1317 Edgewater Dr., Ste 4882, Orlando, FL, 32804, USA
| | - Miao Miao
- Biostax Inc., 1317 Edgewater Dr., Ste 4882, Orlando, FL, 32804, USA
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, China.
| | - Xiaodong Yu
- Department of Nursing, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China.
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Zhang S, Geng J, Shan F, Shan Y, Griffin N, Wu B, Wang X. Methionine enkephalin suppresses lung cancer metastasis by regulating the polarization of tumor-associated macrophages and the distribution of myeloid-derived suppressor cells in the tumor microenvironment and inhibiting epithelial-mesenchymal transition. Int Immunopharmacol 2023; 118:110064. [PMID: 36989897 DOI: 10.1016/j.intimp.2023.110064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/10/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023]
Abstract
Metastasis is one of the most difficult challenges for clinical lung cancer treatment. Epithelial-mesenchymal transition (EMT) is the crucial step of tumor metastasis. Immune cells in the tumor microenvironment (TME), such as tumor-associated macrophages (TAMs) and myeloid-derived suppressor cells (MDSCs), promote cancer cell EMT. In this study, we explored the effect of methionine enkephalin (MENK) on the EMT process in vitro and in vivo, and its influence on TAMs, MDSCs, and associated cytokines in vivo. The results showed that MENK suppressed growth, migration, and invasion of lung cancer cells and inhibited the EMT process by interacting with opioid growth factor receptor. MENK reduced the number of M2 macrophages and MDSC infiltration, and downregulated the expression of interleukin-10 and transforming growth factor-β1 in both primary and metastatic tumors of nude mice. The present findings suggest that MENK is a potential target for suppressing metastasis in lung cancer treatment.
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Fu W, Xie Z, Bai M, Zhang Z, Zhao Y, Tian J. Proteomics analysis of methionine enkephalin upregulated macrophages against infection by the influenza-A virus. Proteome Sci 2023; 21:4. [PMID: 37041527 PMCID: PMC10088144 DOI: 10.1186/s12953-023-00205-w] [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: 01/06/2023] [Accepted: 04/03/2023] [Indexed: 04/13/2023] Open
Abstract
Macrophages have a vital role in phagocytosis and antiviral effect against invading influenza viruses. Previously, we found that methionine enkephalin (MENK) inhibited influenza virus infection by upregulating the "antiviral state" of macrophages. To investigate the immunoregulatory mechanism of action of MENK on macrophages, we employed proteomic analysis to identify differentially expressed proteins (DEPs) between macrophages infected with the influenza-A virus and cells infected with the influenza-A virus after pretreatment with MENK. A total of 215 DEPs were identified: 164 proteins had upregulated expression and 51 proteins had downregulated expression. Proteomics analysis showed that DEPs were highly enriched in "cytokine-cytokine receptor interaction", "phagosome", and "complement and coagulation cascades pathway". Proteomics analysis revealed that MENK could be an immune modulator or prophylactic for the prevention and treatment of influenza. MENK promoted the polarization of M1 macrophages, activated inflammatory responses, and enhanced phagocytosis and killing function by upregulating opsonizing receptors.
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Affiliation(s)
- Wenrui Fu
- Graduate College, Jinzhou Medical University, Jinzhou, 121000, China
| | - Zifeng Xie
- First Clinical Medical College, Jinzhou Medical University, Jinzhou, 121000, China
| | - Mei Bai
- Department of Microbiology, Jinzhou Center for Disease Control and Prevention, Jinzhou, 121000, China
| | - Zhen Zhang
- Department of Microbiology, Jinzhou Center for Disease Control and Prevention, Jinzhou, 121000, China
| | - Yuanlong Zhao
- First Clinical Medical College, Jinzhou Medical University, Jinzhou, 121000, China
| | - Jing Tian
- Department of Immunology, School of Basic Medical Sciences, Jinzhou Medical University, Jinzhou, 121000, China.
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Sun Q, Li Z, Wang Z, Wang Q, Qin F, Pan H, Lin W, Mu X, Wang Y, Jiang Y, Ji J, Lu Z. Immunosuppression by opioids: Mechanisms of action on innate and adaptive immunity. Biochem Pharmacol 2023; 209:115417. [PMID: 36682388 DOI: 10.1016/j.bcp.2023.115417] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/22/2023]
Abstract
Opioids are excellent analgesics for the clinical treatment of various types of acute and chronic pain, particularly cancer-related pain. Nevertheless, it is well known that opioids have some nasty side effects, including immunosuppression, which is commonly overlooked. As a result, the incidence of opportunistic bacterial and viral infections increases in patients with long-term opioid use. Nowadays, there are no effective medications to alleviate opioid-induced immunosuppression. Understanding the underlying molecular mechanism of opioids in immunosuppression can enable researchers to devise effective therapeutic interventions. This review comprehensively summarized the exogenous opioids-induced immunosuppressive effects and their underlying mechanisms, the regulatory roles of endogenous opioids on the immune system, the potential link between opioid immunosuppressive effect and the function of the central nervous system (CNS), and the future perspectives in this field.
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Affiliation(s)
- Qinmei Sun
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine in Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhonghao Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zijing Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qisheng Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Fenfen Qin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Haotian Pan
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Weixin Lin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xinru Mu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yuxuan Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yongwei Jiang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jianjian Ji
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhigang Lu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine in Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Li C, Chen Q, Liu Y, Sun Z, Shen Z, Li S, Cha D, Sun C. Methionine enkephalin promotes white fat browning through cAMP/PKA pathway. Life Sci 2022; 312:121189. [PMID: 36396109 DOI: 10.1016/j.lfs.2022.121189] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/01/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
AIMS Obesity and its related metabolic disorders, including insulin resistance and fatty liver, have become a serious global public health problem. Previous studies have shown Methionine Enkephalin (MetEnk) has the potential on adipocyte browning, however, its effects on the potential mechanisms of its regulation in browning as well as its improvement in energy metabolic homeostasis remain to be deciphered. MAIN METHODS C57BL/6J male mice were fed with high-fat diet (HFD) to induce obesity model, and MetEnk was injected subcutaneously to detect changes in the metabolic status of mice, adipocytes and HepG2 cells were also treated with MetEnk, and transcriptomic, metabolomic were used to detect the changes of lipid metabolism, mitochondrial function, inflammation and other related factors. KEY FINDINGS We found that MetEnk effectively protected against obesity weight gain in HFD-induced C57BL/6J mice, significantly improved glucose tolerance and insulin sensitivity, reduced the expression levels of interleukin 6 (IL-6), promoted white fat browning, moreover, using a combination of transcriptomic, metabolomic and inhibitors, it was found that MetEnk improved mitochondrial function, promoted thermogenesis and lipolysis by activating cAMP/PKA pathway in adipocytes, further analysis found that MetEnk also promoted lipolysis and alleviated inflammation through AMP-activated protein kinase (AMPK) pathway in mice liver and HepG2 cells. SIGNIFICANCE Our study provides profound evidence for the role of MetEnk in improving lipid metabolism disorders. This study provides a mechanical foundation for investigating the potential of MetEnk to improve obesity and its associated metabolic disorders.
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Affiliation(s)
- Chaowei Li
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Qi Chen
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Yanrong Liu
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Zhuwen Sun
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Zhentong Shen
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Shuhan Li
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Dingrui Cha
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China
| | - Chao Sun
- Northwest Agriculture and Forestry University College of Animal Science and Technology, Yangling, Shaanxi 712100, China.
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Puri S, Kenyon BM, Hamrah P. Immunomodulatory Role of Neuropeptides in the Cornea. Biomedicines 2022; 10:1985. [PMID: 36009532 PMCID: PMC9406019 DOI: 10.3390/biomedicines10081985] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 12/21/2022] Open
Abstract
The transparency of the cornea along with its dense sensory innervation and resident leukocyte populations make it an ideal tissue to study interactions between the nervous and immune systems. The cornea is the most densely innervated tissue of the body and possesses both immune and vascular privilege, in part due to its unique repertoire of resident immune cells. Corneal nerves produce various neuropeptides that have a wide range of functions on immune cells. As research in this area expands, further insights are made into the role of neuropeptides and their immunomodulatory functions in the healthy and diseased cornea. Much remains to be known regarding the details of neuropeptide signaling and how it contributes to pathophysiology, which is likely due to complex interactions among neuropeptides, receptor isoform-specific signaling events, and the inflammatory microenvironment in disease. However, progress in this area has led to an increase in studies that have begun modulating neuropeptide activity for the treatment of corneal diseases with promising results, necessitating the need for a comprehensive review of the literature. This review focuses on the role of neuropeptides in maintaining the homeostasis of the ocular surface, alterations in disease settings, and the possible therapeutic potential of targeting these systems.
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Affiliation(s)
- Sudan Puri
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA
- Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Brendan M. Kenyon
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA
- Program in Neuroscience, Graduate School of Biomedical Sciences, Tufts University, Boston, MA 02111, USA
| | - Pedram Hamrah
- Center for Translational Ocular Immunology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA
- Department of Ophthalmology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA 02111, USA
- Program in Neuroscience, Graduate School of Biomedical Sciences, Tufts University, Boston, MA 02111, USA
- Departments of Immunology and Neuroscience, Tufts University School of Medicine, Boston, MA 02111, USA
- Cornea Service, Tufts New England Eye Center, Boston, MA 02111, USA
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Lath A, Santal AR, Kaur N, Kumari P, Singh NP. Anti-cancer peptides: their current trends in the development of peptide-based therapy and anti-tumor drugs. Biotechnol Genet Eng Rev 2022; 39:45-84. [PMID: 35699384 DOI: 10.1080/02648725.2022.2082157] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Human cancer remains a cause of high mortality throughout the world. The conventional methods and therapies currently employed for treatment are followed by moderate-to-severe side effects. They have not generated curative results due to the ineffectiveness of treatments. Besides, the associated high costs, technical requirements, and cytotoxicity further characterize their limitations. Due to relatively higher presidencies, bioactive peptides with anti-cancer attributes have recently become treatment choices within the therapeutic arsenal. The peptides act as potential anti-cancer agents explicitly targeting tumor cells while being less toxic to normal cells. The anti-cancer peptides are isolated from various natural sources, exhibit high selectivity and high penetration efficiency, and could be quickly restructured. The therapeutic benefits of compatible anti-cancer peptides have contributed to the significant expansion of cancer treatment; albeit, the mechanisms by which bioactive peptides inhibit the proliferation of tumor cells remain unclear. This review will provide a framework for assessing anti-cancer peptides' structural and functional aspects. It shall provide appropriate information on their mode of action to support and strengthen efforts to improve cancer prevention. The article will mention the therapeutic health benefits of anti-cancer peptides. Their importance in clinical studies is elaborated for reducing cancer incidences and developing sustainable treatment models.
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Affiliation(s)
- Amit Lath
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, India
| | - Anita Rani Santal
- Department of Microbiology, Maharshi Dayanand University, Rohtak, India
| | - Nameet Kaur
- Amity Institute of Biotechnology, Amity University, Noida, India
| | - Poonam Kumari
- Sophisticated Analytical Instrumentation Facility, CIL and UCIM, Punjab University, Chandigarh, Inida
| | - Nater Pal Singh
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, India
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Valenti GE, Alfei S, Caviglia D, Domenicotti C, Marengo B. Antimicrobial Peptides and Cationic Nanoparticles: A Broad-Spectrum Weapon to Fight Multi-Drug Resistance Not Only in Bacteria. Int J Mol Sci 2022; 23:ijms23116108. [PMID: 35682787 PMCID: PMC9181033 DOI: 10.3390/ijms23116108] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
In the last few years, antibiotic resistance and, analogously, anticancer drug resistance have increased considerably, becoming one of the main public health problems. For this reason, it is crucial to find therapeutic strategies able to counteract the onset of multi-drug resistance (MDR). In this review, a critical overview of the innovative tools available today to fight MDR is reported. In this direction, the use of membrane-disruptive peptides/peptidomimetics (MDPs), such as antimicrobial peptides (AMPs), has received particular attention, due to their high selectivity and to their limited side effects. Moreover, similarities between bacteria and cancer cells are herein reported and the hypothesis of the possible use of AMPs also in anticancer therapies is discussed. However, it is important to take into account the limitations that could negatively impact clinical application and, in particular, the need for an efficient delivery system. In this regard, the use of nanoparticles (NPs) is proposed as a potential strategy to improve therapy; moreover, among polymeric NPs, cationic ones are emerging as promising tools able to fight the onset of MDR both in bacteria and in cancer cells.
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Affiliation(s)
- Giulia E. Valenti
- Department of Experimental Medicine (DIMES), General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (B.M.)
| | - Silvana Alfei
- Department of Pharmacy, University of Genoa, 16148 Genoa, Italy;
| | - Debora Caviglia
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Viale Benedetto XV, 6, 16132 Genova, Italy;
| | - Cinzia Domenicotti
- Department of Experimental Medicine (DIMES), General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (B.M.)
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy
- Correspondence: ; Tel.: +39-010-353-8830
| | - Barbara Marengo
- Department of Experimental Medicine (DIMES), General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (B.M.)
- Inter-University Center for the Promotion of the 3Rs Principles in Teaching & Research (Centro 3R), 56122 Pisa, Italy
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12
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Chen BJ, Zhao JW, Zhang DH, Zheng AH, Wu GQ. Immunotherapy of Cancer by Targeting Regulatory T cells. Int Immunopharmacol 2022; 104:108469. [PMID: 35008005 DOI: 10.1016/j.intimp.2021.108469] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/05/2021] [Accepted: 12/14/2021] [Indexed: 01/23/2023]
Abstract
Regulatory T (Treg) cells maintain immune homeostasis by inhibiting abnormal/overactive immune responses to both autogenic and nonautogenic antigens. Treg cells play an important role in immune tolerance, autoimmune diseases, infectious diseases, organ transplantation, and tumor diseases. Treg cells have two functional characteristics: T cell anergy and immunosuppression. Treg cells remain immune unresponsive to high concentrations of interleukin-2 and anti-CD3 monoclonal antibodies. In addition, the activation of Treg cells after TCR-mediated signal stimulation inhibits the activation and proliferation of effector T cells. In the process of tumor development, Treg cells accumulate locally in the tumor and lead to tumor escape by inducing anergy and immunosuppression. It is believed that targeted elimination of Treg cells can activate tumor-specific effector T cells and improve the efficiency of cancer immunotherapy. Therefore, inhibition/clearance of Treg cells is a promising strategy for enhancing antitumor immunity. Here, we review studies of cancer immunotherapies targeting Treg cells.
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Affiliation(s)
- Bo-Jin Chen
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jing-Wen Zhao
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Da-Hong Zhang
- Department of Urology Center, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ai-Hong Zheng
- Department of Oncology Center, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
| | - Guo-Qing Wu
- Department of Oncology Center, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
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13
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Zhang S, Liu N, Ma M, Huang H, Handley M, Bai X, Shan F. Methionine enkephalin (MENK) suppresses lung cancer by regulating the Bcl-2/Bax/caspase-3 signaling pathway and enhancing natural killer cell-driven tumor immunity. Int Immunopharmacol 2021; 98:107837. [PMID: 34116288 DOI: 10.1016/j.intimp.2021.107837] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/20/2021] [Accepted: 05/29/2021] [Indexed: 12/26/2022]
Abstract
The aim of this study was to investigate how methionine enkephalin (MENK) regulates the biological behavior of lung cancer cells and to further explore its anti-lung cancer mechanisms in vitro and in vivo. The results showed that MENK enhanced the expression of opioid receptor (OGFr) and induced apoptosis of lung cancer cells by activating the Bcl-1/Bax/caspase-3 signaling pathway in vitro and in vivo. However, the regulatory effects of MENK disappeared after blockade of the OGFr. This confirmed that a prerequisite for the anti-tumor action of MENK is binding to OGFr. Additionally, we observed that MENK treatment enhanced the immunogenicity of lung cancer by enhancing the exposure of calreticulin and high mobility group box 1, and increasing the expression of NKG2D ligands. Further studies showed that MENK treatment increased the expression of natural killer (NK) cell-related cytokines such as granzyme B and interferon-γ and NK cell activation. Thus, we concluded that MENK might inhibit the proliferation of lung cancer cells by activating the Bcl-2/Bax/caspase-3 signaling pathway and enhancing immunogenicity and NK cell-driven tumor immunity.
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Affiliation(s)
- Shuling Zhang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, China; Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Ning Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Mingxing Ma
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Hai Huang
- Department of Orthopedic Oncology, the People's Hospital of Liaoning Province, Shenyang 110016, China
| | - Mike Handley
- Cytocom lnc, 3001 Aloma Ave., Winter Park, FL 32792, USA
| | - Xueli Bai
- Department of Gynecology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110004, China.
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110122, China.
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14
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Grill S, Yahiaoui-Doktor M, Basrai M, Struck J, Schulte J, Berling-Ernst A, Engel C, Ullrich M, Lammert J, Bischoff SC, Schmidt T, Niederberger U, Chronas D, Rhiem K, Schmutzler R, Halle M, Kiechle M. Precursor fractions of neurotensin and enkephalin might point to molecular mechanisms of cancer risk modulation during a lifestyle-intervention in germline BRCA1/2 gene mutation carriers. Breast Cancer Res Treat 2021; 186:741-752. [PMID: 33543354 PMCID: PMC8019429 DOI: 10.1007/s10549-020-06070-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Germline BRCA1/2 mutation carriers (gBMC) face increased cancer risks that are modulated via non-genetic lifestyle factors whose underlying molecular mechanisms are unknown. The peptides Neurotensin (NT) and Enkephalin (ENK)-involved in tumorigenesis and obesity-related diseases-are of interest. We wanted to know whether these biomarkers differ between gBMC and women from the general population and what effect a 1-year lifestyle-intervention has in gBMC. METHODS The stable precursor fragments pro-NT and pro-ENK were measured at study entry (SE), after 3 and 12 months for 68 women from LIBRE-1 (a controlled lifestyle-intervention feasibility trial for gBMC involving structured endurance training and the Mediterranean Diet). The SE values were compared with a cohort of the general population including female subjects with and without previous cancer disease, non-suggestive for hereditary breast and ovarian cancer (OMA-reference). For LIBRE-1, we analysed the association between the intervention-related change in the two biomarkers and certain lifestyle factors. RESULTS At SE, gBMC had a higher median pro-NT than OMA-reference (in the subgroups with previous cancer 117 vs. 91 pmol/L, p = 0.002). Non-diseased gBMC had lower median pro-ENK levels when compared to the non-diseased reference group. VO2peak and pro-NT 1-year change in LIBRE-1 were inversely correlated (r = - 0.435; CI - 0.653 to - 0.151; p = 0.004). Pro-ENK correlated positively with VO2peak at SE (r = 0.323; CI 0.061-0.544; p = 0.017). Regression analyses showed an inverse association of 1-year changes for pro-NT and Omega-6/Omega-3 (Estimate: - 37.9, p = 0.097/0.080) in multivariate analysis. CONCLUSION Our results give first indications for lifestyle-related modification particularly of pro-NT in gBMC.
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Affiliation(s)
- Sabine Grill
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany.
| | - Maryam Yahiaoui-Doktor
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
| | - Maryam Basrai
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | | | | | - Anika Berling-Ernst
- Department of Prevention, Rehabilitation and Sports Medicine, Faculty of Medicine, University Hospital Rechts Der Isar, Technical University of Munich (TUM), Munich, Germany
| | - Christoph Engel
- Institute for Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany
| | - Mirjam Ullrich
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
| | - Jacqueline Lammert
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
| | - Stephan C Bischoff
- Institute of Nutritional Medicine, University of Hohenheim, Stuttgart, Germany
| | - Thorsten Schmidt
- Comprehensive Cancer Center, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Uwe Niederberger
- Institute for Medical Psychology and Medical Sociology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Dimitrios Chronas
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
| | - Kerstin Rhiem
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - Rita Schmutzler
- Center for Hereditary Breast and Ovarian Cancer, University Hospital Cologne, Cologne, Germany
| | - Martin Halle
- Department of Prevention, Rehabilitation and Sports Medicine, Faculty of Medicine, University Hospital Rechts Der Isar, Technical University of Munich (TUM), Munich, Germany
| | - Marion Kiechle
- Department of Gynecology and Center for Hereditary Breast and Ovarian Cancer, Klinikum Rechts Der Isar, Technical University Munich (TUM), Munich, Germany
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15
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Budka J, Kowalski S, Chylinska M, Dzierzbicka K, Inkielewicz-Stepniak I. Opioid Growth Factor and its Derivatives as Potential Non-toxic Multifunctional Anticancer and Analgesic Compounds. Curr Med Chem 2021; 28:673-686. [PMID: 32129162 DOI: 10.2174/0929867327666200304122406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 10/02/2019] [Accepted: 10/14/2019] [Indexed: 11/22/2022]
Abstract
Despite significant research progress on the pathogenesis, molecular biology, diagnosis, treatment, and prevention of cancer, its morbidity and mortality are still high around the world. The emerging resistance of cancer cells to anticancer drugs remains still a significant problem in oncology today. Furthermore, an important challenge is the inability of anticancer drugs to selectively target tumor cells thus sparing healthy cells. One of the new potential options for efficient and safe therapy can be provided by opioid growth factor (OGF), chemically termed Met-enkephalin. It is an endogenous pentapeptide (Tyr-Gly-Gly-Phe-Met) with antitumor, analgesic, and immune-boosting properties. Clinical trials have demonstrated that OGF therapy alone, as well as in combination with standard chemotherapies, is a safe, non-toxic anticancer agent that reduces tumor size. In this paper, we review the structure-activity relationship of OGF and its analogues. We highlight also OGF derivatives with analgesic, immunomodulatory activity and the ability to penetrate the blood-brain barrier and may be used as safe agents enhancing chemotherapy efficacy and improving quality of life in cancer patients. The reviewed papers indicate that Met-enkephalin and its analogues are interesting candidates for the development of novel, non-toxic, and endowed with an analgesic activity anticancer drugs. More preclinical and clinical studies are needed to explore these opportunities.
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Affiliation(s)
- Justyna Budka
- Department of Medical Chemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Szymon Kowalski
- Department of Medical Chemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Monika Chylinska
- Department of Medical Chemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Krystyna Dzierzbicka
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
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16
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Inhibition of immunotoxicity of Pb2+-induced RAW264.7 macrophages by selenium species in selenium-enriched rice. Food Chem Toxicol 2021; 148:111943. [DOI: 10.1016/j.fct.2020.111943] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 12/31/2022]
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17
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Sankhe R, Pai SRK, Kishore A. Tumour suppression through modulation of neprilysin signaling: A comprehensive review. Eur J Pharmacol 2020; 891:173727. [PMID: 33160935 DOI: 10.1016/j.ejphar.2020.173727] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/31/2020] [Accepted: 11/01/2020] [Indexed: 02/09/2023]
Abstract
Peptidases are emerging as promising drug targets in tumour suppression. Neprilysin, also known as neutral endopeptidase, is a cell surface peptidase that degrades various peptides such as angiotensin II, endothelin I, Substance P, etc., and reduces their local concentration. Neprilysin is expressed in various tissues such as kidney, prostate, lung, breast, brain, intestine, adrenal gland, etc. The tumour-suppressor mechanisms of neprilysin include its peptidase activity that degrades mitogenic growth factors such as fibroblast growth factor-2 and insulin-like growth factors, and the protein-protein interaction of neprilysin with phosphatase and tensin homolog, focal adhesion kinase, ezrin/radixin/moesin, and phosphoinositide 3-kinase. Studies have shown that the levels of neprilysin play an important role in malignancies. NEP is downregulated in prostate, renal, lung, breast, urothelial, cervical, hepatic cancers, etc. Histone deacetylation and hypermethylation of the neprilysin promoter region are the common mechanisms involved in the downregulation of neprilysin. Downregulation of the peptidase promotes angiogenesis, cell survival and cell migration. This review presents an overview of the role of neprilysin in malignancy, the tumour suppression mechanisms of neprilysin, the epigenetic mechanisms responsible for downregulation of neprilysin, and the potential pharmacological approaches to upregulate neprilysin levels and its activity.
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Affiliation(s)
- Runali Sankhe
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Sreedhara Ranganath K Pai
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Anoop Kishore
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
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18
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Tuo Y, Tian C, Lu L, Xiang M. The paradoxical role of methionine enkephalin in tumor responses. Eur J Pharmacol 2020; 882:173253. [PMID: 32535097 DOI: 10.1016/j.ejphar.2020.173253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 05/20/2020] [Accepted: 06/05/2020] [Indexed: 10/24/2022]
Abstract
Methionine enkephalin (MENK) is an opioid peptide composed of five amino acids with multiple biological activities. Since its discovery, MENK has become prominent in neuroregulation and immunoregulation. Tumors have increasingly been a spotlight because of their terrible trends and refractory characteristic. The therapeutic potential of MENK was investigated on a large scale, and there are numerous evidences that MENK exerts anti-tumor effects via two mechanisms. The first mechanism explains the enhanced anti-tumor immune effects of MENK. The second mechanism shows that MENK directly inhibits tumor cell proliferation. However, numerous reports have clarified the pro-tumor role of MENK by inhibiting T and B cell proliferation, promoting tumor cell growth by binding to opioid receptors, leading to desensitization of lymphocytes, and inducing tolerance. It is particularly intriguing that dual reactions are triggered when MENK combines with its opioid receptors; thus, anti-tumor response of the whole body is influenced. This review will expound the dual roles of MENK in tumor responses based on immune cells, cytokines, and tumor cells to provide better suggestions for its application in tumor treatment.
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Affiliation(s)
- Yali Tuo
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Cheng Tian
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Lili Lu
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Ming Xiang
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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19
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Xie M, Liu D, Yang Y. Anti-cancer peptides: classification, mechanism of action, reconstruction and modification. Open Biol 2020; 10:200004. [PMID: 32692959 PMCID: PMC7574553 DOI: 10.1098/rsob.200004] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Anti-cancer peptides (ACPs) are a series of short peptides composed of 10-60 amino acids that can inhibit tumour cell proliferation or migration, or suppress the formation of tumour blood vessels, and are less likely to cause drug resistance. The aforementioned merits make ACPs the most promising anti-cancer candidate. However, ACPs may be degraded by proteases, or result in cytotoxicity in many cases. To overcome these drawbacks, a plethora of research has focused on reconstruction or modification of ACPs to improve their anti-cancer activity, while reducing their cytotoxicity. The modification of ACPs mainly includes main chain reconstruction and side chain modification. After summarizing the classification and mechanism of action of ACPs, this paper focuses on recent development and progress about their reconstruction and modification. The information collected here may provide some ideas for further research on ACPs, in particular their modification.
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Affiliation(s)
- Mingfeng Xie
- Department of Bioengineering, Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong 519040, People's Republic of China
| | - Dijia Liu
- Department of Bioengineering, Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong 519040, People's Republic of China
| | - Yufeng Yang
- Department of Bioengineering, Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong 519040, People's Republic of China.,Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, Guangdong 519040, People's Republic of China
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20
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Tuo Y, Zhang Z, Tian C, Hu Q, Xie R, Yang J, Zhou H, Lu L, Xiang M. Anti-inflammatory and metabolic reprogramming effects of MENK produce antitumor response in CT26 tumor-bearing mice. J Leukoc Biol 2020; 108:215-228. [PMID: 31994797 DOI: 10.1002/jlb.3ma0120-578r] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/09/2020] [Accepted: 01/16/2020] [Indexed: 12/12/2022] Open
Abstract
Methionine enkephalin (MENK), an endogenous opioid peptide, has a role in nervous system, immune system, and anticancer therapy. Inflammation, metabolism and cancer are closely intertwined with each other. This study is to identify the correlation of the antitumor effects of MENK with systemic inflammation, liver metabolism, and immune cells as myeloid-derived suppressor cells (MDSCs). We established a subcutaneous CT26 colon carcinoma model and a cyclophosphamide-induced immunosuppressive model subjected to MENK. AML12 and MDSCs were used as in vitro models. The results showed that MENK treatment degraded tumor growth and inhibited proinflammatory cytokines both in tumor tissues and serum. The MENK-treated tumor mice showed normalized liver function with glycolipid metabolic homeostasis. No inhibitory effect on CT26 tumor cell in vitro, but only reduced lipid synthesis in AML12 were presented by MENK. Meanwhile, MENK invigorated immune response in both two animal models by markedly suppressing MDSCs and enhancing T cells response. In vitro MENK-treated MDSCs showed reduced glycolysis and less ROS production, which was mediated by PI3K/AKT/mTOR pathway. Opioid receptor antagonist naltrexone reversed most of the regulation. These results illustrate that MENK preventing development of colon carcinoma might be correlated with the suppression of inflammation, improving metabolism in liver as well as in MDSCs partly through opioid receptor, which brings new elements supporting the adjuvant therapy for tumor by MENK.
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Affiliation(s)
- Yali Tuo
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zijun Zhang
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng Tian
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qinyu Hu
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Xie
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian Yang
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Zhou
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lili Lu
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Xiang
- Department of Pharmacology, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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21
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Tian J, Qu N, Jiao X, Wang X, Geng J, Griffin N, Shan F. Methionine enkephalin inhibits influenza A virus infection through upregulating antiviral state in RAW264.7 cells. Int Immunopharmacol 2019; 78:106032. [PMID: 31835089 DOI: 10.1016/j.intimp.2019.106032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 01/27/2023]
Abstract
MENK, as an immune adjuvant, has potential immune-regulatory activity on innate and adaptive immune cells. The aim of this work was to investigate the antiviral effect of MENK on influenza virus-infected murine macrophage cells (RAW264.7) and its underlying mechanisms. The results showed that MENK markedly inhibited influenza A virus (H1N1) replication in pre- and post-MENK treatment, especially in pre-MENK treatment. The mechanisms exploration revealed that MENK (10 mg/mL) significantly inhibited the nucleoprotein (NP) of influenza virus and up-regulated levels of IL-6, TNF-α and IFN-β compared with those in H1N1 control group. Further experiments confirmed that antiviral effects of MENK was associated with promotion of opioid receptor (MOR) as well as activation of NF-κB p65 inducing cellular antiviral status. The data suggest that MENK should be potential candidate for prophylactic or therapeutic treatment against H1N1 influenza virus.
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Affiliation(s)
- Jing Tian
- Department of Immunology, School of Basic Medical Science, Jinzhou Medical University, Jinzhou 121001, China; Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Na Qu
- Department of Gynecology, Cancer Hospital, China Medical University, Shenyang 110042, China
| | - Xue Jiao
- Department of Translational Medicine, No.4 Teaching Hospital, China Medical University, Shenyang 110032, China
| | - Xiaonan Wang
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Jin Geng
- Department of Ophthalmology, No.1 Teaching Hospital, China Medical University, Shenyang 110001, China
| | - Noreen Griffin
- Immune Therapeutics, Inc., 37 North Orange Avenue, Suite 607, Orlando, FL 32801, USA
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110122, China.
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22
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Hamann M, Grill S, Struck J, Bergmann A, Hartmann O, Pölcher M, Kiechle M. Detection of early breast cancer beyond mammographic screening: a promising biomarker panel. Biomark Med 2019; 13:1107-1117. [DOI: 10.2217/bmm-2019-0085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: We assessed the suitability of a biomarker panel to improve early detection and individual risk assessment in breast cancer (BC) patients. Materials & methods: PENK, pro-SP, hGH and CA15-3 of 204 BC patients and 68 healthy controls were measured. Results: PENK and human growth hormone concentrations were significantly lower and pro-SP values higher in BC patients compared with controls. C-index increased from 0.628 for CA15-3 alone to 0.754 when all three biomarkers were added to the model. Conclusion: This biomarker panel may improve early detection of BC and influence the assessment of breast imaging. It might be useful for a risk-adapted cancer surveillance or primary prevention program by a more precise determination of an individualized BC risk.
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Affiliation(s)
- Moritz Hamann
- Department of Gynecology, Red Cross Hospital Munich, Taxisstr. 3, Munich 80637, Germany
| | - Sabine Grill
- Department of Gynecology & Obstetrics, Technical University Munich, Ismaninger Str. 22, Munich 81675, Germany
| | - Joachim Struck
- Sphingotec GmbH, Neuendorfstraße 15A, Hennigsdorf 16761, Germany
| | - Andreas Bergmann
- Sphingotec GmbH, Neuendorfstraße 15A, Hennigsdorf 16761, Germany
| | - Oliver Hartmann
- Sphingotec GmbH, Neuendorfstraße 15A, Hennigsdorf 16761, Germany
| | - Martin Pölcher
- Department of Gynecology, Red Cross Hospital Munich, Taxisstr. 3, Munich 80637, Germany
| | - Marion Kiechle
- Department of Gynecology & Obstetrics, Technical University Munich, Ismaninger Str. 22, Munich 81675, Germany
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23
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Zhang K, Yang J, Ao N, Jin S, Qi R, Shan F, Du J. Methionine enkephalin (MENK) regulates the immune pathogenesis of type 2 diabetes mellitus via the IL-33/ST2 pathway. Int Immunopharmacol 2019; 73:23-40. [PMID: 31078923 DOI: 10.1016/j.intimp.2019.04.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 12/18/2022]
Abstract
The incidence and mortality of type 2 diabetes mellitus (T2DM) rank among the top ten worldwide. Emerging studies indicate pathological roles for the immune system in inflammation, insulin resistance and islet β-cell damage in subjects with T2DM. Methionine enkephalin (MENK) is present in endocrine cells of the pancreas and has been suggested to be an important mediator between the immune and neuroendocrine systems. Therefore, it may play a role in modulating insulin secretion from islet cells. Since little is known about the effect of MENK on T2DM, therefore it was the aim of this study to characterize the role and possible mechanism of action of MENK on plasma glucose and serum insulin levels in T2DM rats and INS-1 cells in vivo and in vitro. MENK significantly decreased the plasma glucose level and increased the serum insulin concentration in T2DM rats. It also increased the serum levels of the cytokines IL-5 and IL-10, while decreased TNF-α and IL-2 levels. We further confirmed that MENK regulated glucose metabolism by upregulating opioid receptor expression and modulating the IL-33/ST2 and MyD88-TRAF6-NF-κB p65 signaling pathways. Based on these results, an intraperitoneal injection of MENK represents a potentially new approach for T2DM.
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Affiliation(s)
- Keying Zhang
- Department of Endocrinology, No. 4 Teaching Hospital, China Medical University, Shenyang 110032, China
| | - Jing Yang
- Department of Endocrinology, No. 4 Teaching Hospital, China Medical University, Shenyang 110032, China
| | - Na Ao
- Department of Endocrinology, No. 4 Teaching Hospital, China Medical University, Shenyang 110032, China
| | - Shi Jin
- Department of Endocrinology, No. 4 Teaching Hospital, China Medical University, Shenyang 110032, China
| | - Ruiqun Qi
- Department of Dermatology, No. 1 Teaching Hospital, China Medical University, Shenyang 110001, China
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Jian Du
- Department of Endocrinology, No. 4 Teaching Hospital, China Medical University, Shenyang 110032, China.
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Suo J, Zhao X, Guo X, Zhao X. Met-enkephalin improves metabolic syndrome in high fat diet challenged mice through promotion of adipose tissue browning. Toxicol Appl Pharmacol 2018; 359:12-23. [DOI: 10.1016/j.taap.2018.09.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/07/2018] [Accepted: 09/13/2018] [Indexed: 12/12/2022]
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Wang X, Jiao X, Meng Y, Chen H, Griffin N, Gao X, Shan F. Methionine enkephalin (MENK) inhibits human gastric cancer through regulating tumor associated macrophages (TAMs) and PI3K/AKT/mTOR signaling pathway inside cancer cells. Int Immunopharmacol 2018; 65:312-322. [PMID: 30343258 DOI: 10.1016/j.intimp.2018.10.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/09/2018] [Accepted: 10/15/2018] [Indexed: 02/07/2023]
Abstract
This study was to explore the effect and mechanisms of anti- human gastric cancer by MENK in vitro and in vivo. The results showed in MENK-treated xenograft tissue, the percentage of M2-type macrophages decreased while M1-type macrophages increased. MENK increased the expression of M1-related cytokine TNF-α and attenuated the expression of M2-related cytokine IL-10 expression. MENK upregulated the expression of opioid receptor (OGFr), while it inhibited HGC27 and SGC7901 cells through blocking PI3K/AKT/mTOR signal pathway in vitro and in vivo. These effects of MENK could be cancelled when OGFr was knockdown. This indicates that binding to OGFr by MENK appears to be essential for the anti- GC cells. Therefore, it is concluded that MENK might skew macrophage toward M2 phenotype from M1 phenotype within tumor and induce cells apoptosis though blocking OGFr/PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Xiaonan Wang
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Xue Jiao
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Yiming Meng
- Central Laboratory, Cancer Hospital of China Medical University, Shenyang 110042, China
| | - Hao Chen
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang 110122, China
| | - Noreen Griffin
- Immune Therapeutics, Inc., 37 North Orange Avenue, Suite 607, Orlando, FL 32801, USA
| | - Xinghua Gao
- Department of Dermatology, No. 1 Teaching Hospital, China Medical University, Shenyang, 110016, China
| | - Fengping Shan
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang 110122, China.
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Wang X, Tian J, Jiao X, Geng J, Wang R, Liu N, Gao X, Griffin N, Gao Y, Shan F. The novel mechanism of anticancer effect on gastric cancer through inducing G0/G1 cell cycle arrest and caspase-dependent apoptosis in vitro and in vivo by methionine enkephalin. Cancer Manag Res 2018; 10:4773-4787. [PMID: 30425572 PMCID: PMC6201847 DOI: 10.2147/cmar.s178343] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background Gastric cancer (GC) is the second cause of cancer-related deaths. Methionine enkephalin (MENK), an endogenous opioid peptide, has immunological and antitumor activity. Purpose The aim of this work was to investigate whether MENK could exhibit activity against human GC in vitro and in vivo. Materials and methods Human GC cells were treated with MENK. Cell viability, colony formation, cell morphology, cell cycle, and apoptosis were assessed. The effects of MENK on gene expression of OGFr, Bax, BCL-2, caspase-3, PARP, Ki67, cyclin D1, c-myc, survivin were quantifed by qRT-PCR. Western blot was used to analyze the effects of MENK on protein expression of OGFr, Bax, BCL-2, caspase-3, PARP. The anti-tumor activity of MENK in gastic carcinoma was also investigated with animal experiments. Results The results indicate that MENK could significantly inhibit the growth of human GC cells SGC7901 and HGC27 in a concentration- and time-dependent manner, decrease the number of cell colonies, and arrest cell cycle in the G0/G1 phase by causing a decrease in Ki67, cyclin D1, and c-myc mRNA. Furthermore, MENK could induce tumor cell apoptosis associated with the upregulation of Bax, a corresponding downregulation of BCL-2 and survivin, and activation of caspase-3 and PARP. Moreover, MENK upregulated the expression of opioid receptors (OGFr) in SGC7901 and HGC27 cells. The interaction between MENK and OGFr in SGC7901 and HGC27 cells appears to be essential for the antitumor activity of MENK. Conclusion We conclude that MENK may be a potential drug for the treatment of GC.
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Affiliation(s)
- Xiaonan Wang
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang, China,
| | - Jing Tian
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang, China,
| | - Xue Jiao
- Department of Translational Medicine, No. 4 Teaching Hospital, China Medical University, Shenyang, China
| | - Jin Geng
- Department of Ophthalmology, China Medical University, Shenyang, China
| | - Reizhe Wang
- Department of Gynecology, No. 1 Teaching Hospital, China Medical University, Shenyang, China
| | - Ning Liu
- Department of Gynecologic Oncology, Shengjing Hospital
| | - Xinghua Gao
- Department of Dermatology, No. 1 Teaching Hospital, China Medical University, Shenyang, China
| | | | - Yuan Gao
- Faculty of Information and Engineering, Northeastern University, Shenyang, China
| | - Fengping Shan
- Department of Immunology, College of Basic Medical Science, China Medical University, Shenyang, China,
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Ozalp A, Barroso B, Meijer J, van den Beld C. Determination of methionine-enkephalin and leucine-enkephalin by LC-MS in human plasma: Study of pre-analytical stability. Anal Biochem 2018; 559:24-29. [DOI: 10.1016/j.ab.2018.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/28/2018] [Accepted: 07/03/2018] [Indexed: 12/18/2022]
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Shenoy P, Kuo A, Vetter I, Smith MT. Optimization and In Vivo Profiling of a Refined Rat Model of Walker 256 Breast Cancer Cell-Induced Bone Pain Using Behavioral, Radiological, Histological, Immunohistochemical and Pharmacological Methods. Front Pharmacol 2017; 8:442. [PMID: 28729837 PMCID: PMC5498471 DOI: 10.3389/fphar.2017.00442] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 06/20/2017] [Indexed: 12/15/2022] Open
Abstract
In the majority of patients with advanced breast cancer, there is metastatic spread to bones resulting in pain. Clinically available drug treatments for alleviation of breast cancer-induced bone pain (BCIBP) often produce inadequate pain relief due to dose-limiting side-effects. A major impediment to the discovery of novel well-tolerated analgesic agents for the relief of pain due to bony metastases is the fact that most cancer-induced bone pain models in rodents relied on the systemic injection of cancer cells, causing widespread formation of cancer metastases and poor general animal health. Herein, we have established an optimized, clinically relevant Wistar Han female rat model of breast cancer induced bone pain which was characterized using behavioral assessments, radiology, histology, immunohistochemistry and pharmacological methods. In this model that is based on unilateral intra-tibial injection (ITI) of Walker 256 carcinoma cells, animals maintained good health for at least 66 days post-ITI. The temporal development of hindpaw hypersensitivity depended on the initial number of Walker 256 cells inoculated in the tibiae. Hindpaw hypersensitivity resolved after approximately 25 days, in the continued presence of bone tumors as evidenced by ex vivo histology, micro-computed tomography scans and immunohistochemical assessments of tibiae. A possible role for the endogenous opioid system as an internal factor mediating the self-resolving nature of BCIBP was identified based upon the observation that naloxone, a non-selective opioid antagonist, caused the re-emergence of hindpaw hypersensitivity. Bolus dose injections of morphine, gabapentin, amitriptyline and meloxicam all alleviated hindpaw hypersensitivity in a dose-dependent manner. This is a first systematic pharmacological profiling of this model by testing standard analgesic drugs from four important diverse classes, which are used to treat cancer induced bone pain in the clinical setting. Our refined rat model more closely mimics the pathophysiology of this condition in humans and hence is well-suited for probing the mechanisms underpinning breast cancer induced bone pain. In addition, the model may be suitable for efficacy profiling of new molecules from drug discovery programs with potential to be developed as novel agents for alleviation of intractable pain associated with disseminated breast cancer induced bony metastases.
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Affiliation(s)
- Priyank Shenoy
- Centre for Integrated Preclinical Drug Development, Centre for Clinical Research, The University of Queensland, BrisbaneQLD, Australia.,School of Biomedical Sciences, The University of Queensland, BrisbaneQLD, Australia
| | - Andy Kuo
- Centre for Integrated Preclinical Drug Development, Centre for Clinical Research, The University of Queensland, BrisbaneQLD, Australia
| | - Irina Vetter
- Institute for Molecular Bioscience, The University of Queensland, BrisbaneQLD, Australia.,School of Pharmacy, The University of Queensland, BrisbaneQLD, Australia
| | - Maree T Smith
- Centre for Integrated Preclinical Drug Development, Centre for Clinical Research, The University of Queensland, BrisbaneQLD, Australia.,School of Pharmacy, The University of Queensland, BrisbaneQLD, Australia
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Xu X, Gao Y, Wen L, Zhai Z, Zhang S, Shan F, Feng J. Methionine enkephalin regulates microglia polarization and function. Int Immunopharmacol 2016; 40:90-97. [DOI: 10.1016/j.intimp.2016.08.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 12/16/2022]
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Gromova OA, Pronin AV, Torshin IY, Kalacheva AG, Filimonova MV, Demidov VI, Gogoleva IV, Grishina TR. Evaluation of the antitumor potential of cerebrolysin. Zh Nevrol Psikhiatr Im S S Korsakova 2016; 116:69-77. [DOI: 10.17116/jnevro201611611169-77] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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