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Xie W, Xing N, Qu J, Liu D, Pang Q. The Physiological Function of nNOS-Associated CAPON Proteins and the Roles of CAPON in Diseases. Int J Mol Sci 2023; 24:15808. [PMID: 37958792 PMCID: PMC10647562 DOI: 10.3390/ijms242115808] [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: 09/19/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
In this review, the structure, isoform, and physiological role of the carboxy-terminal PDZ ligand of neuronal nitric oxide synthase (CAPON) are summarized. There are three isoforms of CAPON in humans, including long CAPON protein (CAPON-L), short CAPON protein (CAPON-S), and CAPON-S' protein. CAPON-L includes three functional regions: a C-terminal PDZ-binding motif, carboxypeptidase (CPE)-binding region, and N-terminal phosphotyrosine (PTB) structural domain. Both CAPON-S and CAPON-S' only contain the C-terminal PDZ-binding motif. The C-terminal PDZ-binding motif of CAPON can bind with neuronal nitric oxide synthase (nNOS) and participates in regulating NO production and neuronal development. An overview is given on the relationship between CAPON and heart diseases, diabetes, psychiatric disorders, and tumors. This review will clarify future research directions on the signal pathways related to CAPON, which will be helpful for studying the regulatory mechanism of CAPON. CAPON may be used as a drug target, which will provide new ideas and solutions for treating human diseases.
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Affiliation(s)
| | | | | | - Dongwu Liu
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, China; (W.X.); (N.X.)
| | - Qiuxiang Pang
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, China; (W.X.); (N.X.)
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Gong T, Li Y, Feng L, Xu Q, Dai G, Li M, Wang Y, Liu S. SNHG25 promotes colorectal cancer metastasis by regulating MMP2. Aging (Albany NY) 2023; 15:10105-10116. [PMID: 37751586 PMCID: PMC10599716 DOI: 10.18632/aging.205060] [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: 05/24/2023] [Accepted: 09/02/2023] [Indexed: 09/28/2023]
Abstract
LncRNA has been shown to play an important role in tumors, but the functions of most lncRNAs in colorectal cancer is not clear. By analyzing the transcriptome data of tumor tissues and adjacent tissues, we identified the lncRNA profiles that were abnormally expressed in colorectal cancer and selected the abnormally highly expressed lncRNA SNHG25 for further study. The functional assays showed that after knocking down SNHG25, the metastatic ability of colorectal cancer cells was significantly reduced. Western blot and immunofluorescence assays showed that inhibiting SNHG25 would affect the expression of Vimentin and E-Cadherin. In terms of mechanism, the results of RNA pull down assays, RNA immunoprecipitation (RIP) assays and dual luciferase reporter assays showed that SNHG25 could promote MMP2 expression by adsorbing miR-296-3p. In addition, chromatin immunoprecipitation (ChIP) assays and promoter luciferase reporter assays revealed that PAX5 could activate the transcription of SNHG25 in colorectal cancer cells. Our study proved that SNHG25 acts a pro-metastasis role in colorectal cancer, enriching the theory of the functions of lncRNA in colorectal cancer.
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Affiliation(s)
- Tao Gong
- Oncology, Nanjing Hospital of Chinese Medicine, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yu Li
- Oncology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Liang Feng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Qingyu Xu
- Interventional Radiology Department, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and the Affiliated Cancer Hospital of Nanjing Medical University, Nanjing 210000, China
| | - Guoliang Dai
- Department of Clinical Pharmacology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Min Li
- Oncology, Nanjing Hospital of Chinese Medicine, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yi Wang
- Colorectal Surgery, Nanjing Hospital of Chinese Medicine, Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Shenlin Liu
- Oncology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
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Wang S, Su ML, Zhang Y, Wu HM, Zou ZH, Zhang W, Deng F, Zhao Y. Role of N-methyl-d-aspartate receptors in anxiety disorder with thyroid lesions. J Psychosom Res 2022; 161:110998. [PMID: 35964359 DOI: 10.1016/j.jpsychores.2022.110998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 07/23/2022] [Accepted: 07/23/2022] [Indexed: 10/16/2022]
Abstract
OBJECTIVE Patients with anxiety disorder (AD) often have structural and functional abnormalities of the thyroid gland, but their specific causes remain unclear. N-methyl- d-aspartate receptors (NMDARs) play an important role in many psychosomatic diseases and tumorigenesis, but there are few reports on the role of NMDARs in AD with thyroid lesions, especially thyroid nodules (TNs). METHODS A cross-sectional study was conducted on patients admitted to the hospital with AD (n = 71) as the main diagnosis from April to October 2021. Meanwhile, patients with TNs with no AD (NAD-TN group, n = 20) and healthy subjects (HS group, n = 37) with matched age, sex, and education were randomly collected as controls. Patients with AD were sub-grouped into the AD with TNs (AD-TN group, n = 41) and the AD with no TNs (AD-NTN group, n = 30). The thyroid ultrasound reports, Hamilton Anxiety Scale (HAMA) scores, and the expression of NMDARs and their subunits (NR1, NR2A, and NR2B) and hypothalamic-pituitary-thyroid (HPT) axis-related hormones were analyzed in all subjects. Some patients with TNs underwent surgery and postoperative pathological examination. RESULTS Patients with AD showed a lower level of free triiodothyronine (FT3) and higher levels of thyrotropin-releasing hormone (TRH) and NMDARs and their subunits compared to the healthy controls. The expression of the NR2A subunit was higher in the AD-TN group than that in other three groups (AD-NTN, NAD-TN, and HS groups, F = 13.650, p < 0.001). Regression analysis showed that the level of NMDARs was positively correlated with the HAMA scores (B = 1.622, p = 0.029) and the maximum diameter of TNs (B = 3.836, p = 0.005). Immunohistochemical results showed that the NR2A subunit was widely expressed in multinodular goiter (MNG) and papillary thyroid carcinoma (PTC) tissues, while the expression of the NR2B subunit was lower in PTC adjacent and MNG tissues and almost absent in PTC tissues. CONCLUSION In a sample of mostly women hospitalized with generalized anxiety disorder (GAD) or panic disorder, abnormal expression of NMDARs is closely related to AD with thyroid lesions, NMDAR subunits may have various activities and exert diverse effects in TNs, and the NR2A subunit may be an important regulator in AD with TNs.
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Affiliation(s)
- Song Wang
- Department of Vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Mei-Lan Su
- Department of Psychosomatic Medicine, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Yan Zhang
- Department of Psychosomatic Medicine, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Hong-Mei Wu
- Department of Psychosomatic Medicine, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Zhong-Hui Zou
- Department of Stomach/Thyroid/Vascular Surgery, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Wei Zhang
- Department of Stomach/Thyroid/Vascular Surgery, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Feng Deng
- Department of Stomach/Thyroid/Vascular Surgery, Chongqing University Three Gorges Hospital, Chongqing, China
| | - Yu Zhao
- Department of Vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Emerging Roles of the Nervous System in Gastrointestinal Cancer Development. Cancers (Basel) 2022; 14:cancers14153722. [PMID: 35954387 PMCID: PMC9367305 DOI: 10.3390/cancers14153722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary Nerve–cancer cross-talk has increasingly become a focus of the oncology field, particularly in gastrointestinal (GI) cancers. The indispensable roles of the nervous system in GI tumorigenesis and malignancy have been dissected by epidemiological, experimental animal and mechanistic data. Herein, we review and integrate recent discoveries linking the nervous system to GI cancer initiation and progression, and focus on the molecular mechanisms by which nerves and neural receptor pathways drive GI malignancy. Abstract Our understanding of the fascinating connection between nervous system and gastrointestinal (GI) tumorigenesis has expanded greatly in recent years. Recent studies revealed that neurogenesis plays an active part in GI tumor initiation and progression. Tumor-driven neurogenesis, as well as neurite outgrowth of the pre-existing peripheral nervous system (PNS), may fuel GI tumor progression via facilitating cancer cell proliferation, chemoresistance, invasion and immune escape. Neurotransmitters and neuropeptides drive the activation of various oncogenic pathways downstream of neural receptors within cancer cells, underscoring the importance of neural signaling pathways in GI tumor malignancy. In addition, neural infiltration also plays an integral role in tumor microenvironments, and contributes to an environment in favor of tumor angiogenesis, immune evasion and invasion. Blockade of tumor innervation via denervation or pharmacological agents may serve as a promising therapeutic strategy against GI tumors. In this review, we summarize recent findings linking the nervous system to GI tumor progression, set the spotlight on the molecular mechanisms by which neural signaling fuels cancer aggressiveness, and highlight the importance of targeting neural mechanisms in GI tumor therapy.
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Belin S, Maki BA, Catlin J, Rein BA, Popescu GK. Membrane Stretch Gates NMDA Receptors. J Neurosci 2022; 42:5672-5680. [PMID: 35705487 PMCID: PMC9302457 DOI: 10.1523/jneurosci.0350-22.2022] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/25/2022] [Accepted: 06/01/2022] [Indexed: 01/22/2023] Open
Abstract
NMDARs are ionotropic glutamate receptors widely expressed in the CNS, where they mediate phenomena as diverse as neurotransmission, information processing, synaptogenesis, and cellular toxicity. They function as glutamate-gated Ca2+-permeable channels, which require glycine as coagonist, and can be modulated by many diffusible ligands and cellular cues, including mechanical stimuli. Previously, we found that, in cultured astrocytes, shear stress initiates NMDAR-mediated Ca2+ entry in the absence of added agonists, suggesting that more than being mechanosensitive, NMDARs may be mechanically activated. Here, we used controlled expression of rat recombinant receptors and noninvasive on-cell single-channel current recordings to show that mild membrane stretch can substitute for the neurotransmitter glutamate in gating NMDAR currents. Notably, stretch-activated currents maintained the hallmark features of the glutamate-gated currents, including glycine-requirement, large unitary conductance, high Ca2+ permeability, and voltage-dependent Mg2+ blockade. Further, we found that the stretch-gated current required the receptor's intracellular domain. Our results are consistent with the hypothesis that mechanical forces can gate endogenous NMDAR currents even in the absence of synaptic glutamate release, which has important implications for understanding mechanotransduction and the physiological and pathologic effects of mechanical forces on cells of the CNS.SIGNIFICANCE STATEMENT We show that, in addition to enhancing currents elicited with low agonist concentrations, membrane stretch can gate NMDARs in the absence of the neurotransmitter glutamate. Stretch-gated currents have the principal hallmarks of the glutamate-gated currents, including requirement for glycine, large Na+ conductance, high Ca2+ permeability, and voltage-dependent Mg2+ block. Therefore, results suggest that mechanical forces can initiate cellular processes presently attributed to glutamatergic neurotransmission, such as synaptic plasticity and cytotoxicity. Given the ubiquitous presence of mechanical forces in the CNS, this discovery identifies NMDARs as possibly important mechanotransducers during development and across the lifespan, and during pathologic processes, such as those associated with traumatic brain injuries, shaken infant syndrome, and chronic traumatic encephalopathy.
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Affiliation(s)
- Sophie Belin
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, New York 14214
| | - Bruce A Maki
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, New York 14214
| | - James Catlin
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, New York 14214
| | - Benjamin A Rein
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, New York 14214
| | - Gabriela K Popescu
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, SUNY, Buffalo, New York 14214
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García-Gaytán AC, Hernández-Abrego A, Díaz-Muñoz M, Méndez I. Glutamatergic system components as potential biomarkers and therapeutic targets in cancer in non-neural organs. Front Endocrinol (Lausanne) 2022; 13:1029210. [PMID: 36457557 PMCID: PMC9705578 DOI: 10.3389/fendo.2022.1029210] [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: 08/26/2022] [Accepted: 10/24/2022] [Indexed: 11/17/2022] Open
Abstract
Glutamate is one of the most abundant amino acids in the blood. Besides its role as a neurotransmitter in the brain, it is a key substrate in several metabolic pathways and a primary messenger that acts through its receptors outside the central nervous system (CNS). The two main types of glutamate receptors, ionotropic and metabotropic, are well characterized in CNS and have been recently analyzed for their roles in non-neural organs. Glutamate receptor expression may be particularly important for tumor growth in organs with high concentrations of glutamate and might also influence the propensity of such tumors to set metastases in glutamate-rich organs, such as the liver. The study of glutamate transporters has also acquired relevance in the physiology and pathologies outside the CNS, especially in the field of cancer research. In this review, we address the recent findings about the expression of glutamatergic system components, such as receptors and transporters, their role in the physiology and pathology of cancer in non-neural organs, and their possible use as biomarkers and therapeutic targets.
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Ha JH, Jayaraman M, Nadhan R, Kashyap S, Mukherjee P, Isidoro C, Song YS, Dhanasekaran DN. Unraveling Autocrine Signaling Pathways through Metabolic Fingerprinting in Serous Ovarian Cancer Cells. Biomedicines 2021; 9:1927. [PMID: 34944743 PMCID: PMC8698993 DOI: 10.3390/biomedicines9121927] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/06/2021] [Accepted: 12/14/2021] [Indexed: 12/26/2022] Open
Abstract
Focusing on defining metabolite-based inter-tumoral heterogeneity in ovarian cancer, we investigated the metabolic diversity of a panel of high-grade serous ovarian carcinoma (HGSOC) cell-lines using a metabolomics platform that interrogate 731 compounds. Metabolic fingerprinting followed by 2-dimensional and 3-dimensional principal component analysis established the heterogeneity of the HGSOC cells by clustering them into five distinct metabolic groups compared to the fallopian tube epithelial cell line control. An overall increase in the metabolites associated with aerobic glycolysis and phospholipid metabolism were observed in the majority of the cancer cells. A preponderant increase in the levels of metabolites involved in trans-sulphuration and glutathione synthesis was also observed. More significantly, subsets of HGSOC cells showed an increase in the levels of 5-Hydroxytryptamine, γ-aminobutyrate, or glutamate. Additionally, 5-hydroxytryptamin synthesis inhibitor as well as antagonists of γ-aminobutyrate and glutamate receptors prohibited the proliferation of HGSOC cells, pointing to their potential roles as oncometabolites and ligands for receptor-mediated autocrine signaling in cancer cells. Consistent with this role, 5-Hydroxytryptamine synthesis inhibitor as well as receptor antagonists of γ-aminobutyrate and Glutamate-receptors inhibited the proliferation of HGSOC cells. These antagonists also inhibited the three-dimensional spheroid growth of TYKNU cells, a representative HGSOC cell-line. These results identify 5-HT, GABA, and Glutamate as putative oncometabolites in ovarian cancer metabolic sub-type and point to them as therapeutic targets in a metabolomic fingerprinting-based therapeutic strategy.
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Affiliation(s)
- Ji Hee Ha
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.H.H.); (M.J.); (R.N.); (S.K.); (P.M.)
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Muralidharan Jayaraman
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.H.H.); (M.J.); (R.N.); (S.K.); (P.M.)
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Revathy Nadhan
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.H.H.); (M.J.); (R.N.); (S.K.); (P.M.)
| | - Srishti Kashyap
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.H.H.); (M.J.); (R.N.); (S.K.); (P.M.)
| | - Priyabrata Mukherjee
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.H.H.); (M.J.); (R.N.); (S.K.); (P.M.)
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Ciro Isidoro
- Laboratory of Molecular Pathology and NanoBioImaging, Department of Health Sciences, Università del Piemonte Orientale, 28100 Novara, Italy;
| | - Yong Sang Song
- Department of Obstetrics and Gynecology, Cancer Research Institute, College of Medicine, Seoul National University, Seoul 151-921, Korea;
| | - Danny N. Dhanasekaran
- Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (J.H.H.); (M.J.); (R.N.); (S.K.); (P.M.)
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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