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Liu Y, Reyes E, Castillo-Azofeifa D, Klein OD, Nystul T, Barber DL. Intracellular pH dynamics regulates intestinal stem cell lineage specification. Nat Commun 2023; 14:3745. [PMID: 37353491 PMCID: PMC10290085 DOI: 10.1038/s41467-023-39312-9] [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: 09/15/2022] [Accepted: 06/06/2023] [Indexed: 06/25/2023] Open
Abstract
Intracellular pH dynamics is increasingly recognized to regulate myriad cell behaviors. We report a finding that intracellular pH dynamics also regulates adult stem cell lineage specification. We identify an intracellular pH gradient in mouse small intestinal crypts, lowest in crypt stem cells and increasing along the crypt column. Disrupting this gradient by inhibiting H+ efflux by Na+/H+ exchanger 1 abolishes crypt budding and blocks differentiation of Paneth cells, which are rescued with exogenous WNT. Using single-cell RNA sequencing and lineage tracing we demonstrate that intracellular pH dynamics acts downstream of ATOH1, with increased pH promoting differentiation toward the secretory lineage. Our findings indicate that an increase in pH is required for the lineage specification that contributes to crypt maintenance, establishing a role for intracellular pH dynamics in cell fate decisions within an adult stem cell lineage.
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Affiliation(s)
- Yi Liu
- Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Efren Reyes
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA, 94143, USA
| | - David Castillo-Azofeifa
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA, 94143, USA
- Immunology Discovery, Genentech, Inc., South San Francisco, CA, 94080, USA
| | - Ophir D Klein
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Todd Nystul
- Departments of Anatomy, University of California San Francisco, San Francisco, CA, 94143, USA.
| | - Diane L Barber
- Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA, 94143, USA.
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A Novel Fibromodulin Antagonist Peptide RP4 Exerts Antitumor Effects on Colorectal Cancer. Pharmaceutics 2023; 15:pharmaceutics15030944. [PMID: 36986805 PMCID: PMC10053243 DOI: 10.3390/pharmaceutics15030944] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/04/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
Colorectal cancer (CRC) is the leading cause of cancer-related deaths worldwide. Fibromodulin (FMOD) is the main proteoglycan that contributes to extracellular matrix (ECM) remodeling by binding to matrix molecules, thereby playing an essential role in tumor growth and metastasis. There are still no useful drugs that target FMOD for CRC treatment in clinics. Here, we first used public whole-genome expression datasets to analyze the expression level of FMOD in CRC and found that FMOD was upregulated in CRC and associated with poor patient prognosis. We then used the Ph.D.-12 phage display peptide library to obtain a novel FMOD antagonist peptide, named RP4, and tested its anti-cancer effects of RP4 in vitro and in vivo. These results showed that RP4 inhibited CRC cell growth and metastasis, and promoted apoptosis both in vitro and in vivo by binding to FMOD. In addition, RP4 treatment affected the CRC-associated immune microenvironment in a tumor model by promoting cytotoxic CD8+ T and NKT (natural killer T) cells and inhibiting CD25+ Foxp3+ Treg cells. Mechanistically, RP4 exerted anti-tumor effects by blocking the Akt and Wnt/β-catenin signaling pathways. This study implies that FMOD is a potential target for CRC treatment, and the novel FMOD antagonist peptide RP4 can be developed as a clinical drug for CRC treatment.
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3
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Pleiotropic Roles of Atrial Natriuretic Peptide in Anti-Inflammation and Anti-Cancer Activity. Cancers (Basel) 2022; 14:cancers14163981. [PMID: 36010974 PMCID: PMC9406604 DOI: 10.3390/cancers14163981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/07/2022] [Accepted: 08/15/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary The relationship between inflammation and carcinogenesis, as well as the response to anti-tumor therapy, is intimate. Atrial natriuretic peptides (ANPs) play a pivotal role in the homeostatic control of blood pressure, electrolytes, and water balance. In addition, ANPs exert immune-modulatory effects in the tissue microenvironment, thus exhibiting a fascinating ability to prevent inflammation-related tumorigenesis and cancer recurrence. In cancers, ANPs show anti-proliferative effects through several molecular pathways. Furthermore, ANPs attenuate the side effects of cancer therapy. Therefore, ANPs have potential therapeutic value in tumors. Here, we summarized the roles of ANPs in diverse aspects of the immune system and the molecular mechanisms underlying the anti-cancer effects of ANPs, contributing to the development of ANP-based anti-cancer agents. Abstract The atrial natriuretic peptide (ANP), a cardiovascular hormone, plays a pivotal role in the homeostatic control of blood pressure, electrolytes, and water balance and is approved to treat congestive heart failure. In addition, there is a growing realization that ANPs might be related to immune response and tumor growth. The anti-inflammatory and immune-modulatory effects of ANPs in the tissue microenvironment are mediated through autocrine or paracrine mechanisms, which further suppress tumorigenesis. In cancers, ANPs show anti-proliferative effects through several molecular pathways. Furthermore, ANPs attenuate the side effects of cancer therapy. Therefore, ANPs act on several hallmarks of cancer, such as inflammation, angiogenesis, sustained tumor growth, and metastasis. In this review, we summarized the contributions of ANPs in diverse aspects of the immune system and the molecular mechanisms underlying the anti-cancer effects of ANPs.
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4
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Zhao H, Ming T, Tang S, Ren S, Yang H, Liu M, Tao Q, Xu H. Wnt signaling in colorectal cancer: pathogenic role and therapeutic target. Mol Cancer 2022; 21:144. [PMID: 35836256 PMCID: PMC9281132 DOI: 10.1186/s12943-022-01616-7] [Citation(s) in RCA: 208] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/01/2022] [Indexed: 02/08/2023] Open
Abstract
Background The Wnt signaling pathway is a complex network of protein interactions that functions most commonly in embryonic development and cancer, but is also involved in normal physiological processes in adults. The canonical Wnt signaling pathway regulates cell pluripotency and determines the differentiation fate of cells during development. The canonical Wnt signaling pathway (also known as the Wnt/β-catenin signaling pathway) is a recognized driver of colon cancer and one of the most representative signaling pathways. As a functional effector molecule of Wnt signaling, the modification and degradation of β-catenin are key events in the Wnt signaling pathway and the development and progression of colon cancer. Therefore, the Wnt signaling pathway plays an important role in the pathogenesis of diseases, especially the pathogenesis of colorectal cancer (CRC). Objective Inhibit the Wnt signaling pathway to explore the therapeutic targets of colorectal cancer. Methods Based on studying the Wnt pathway, master the biochemical processes related to the Wnt pathway, and analyze the relevant targets when drugs or inhibitors act on the Wnt pathway, to clarify the medication ideas of drugs or inhibitors for the treatment of diseases, especially colorectal cancer. Results Wnt signaling pathways include: Wnt/β-catenin or canonical Wnt signaling pathway, planar cell polarity (Wnt-PCP) pathway and Wnt-Ca2+ signaling pathway. The Wnt signaling pathway is closely related to cancer cell proliferation, stemness, apoptosis, autophagy, metabolism, inflammation and immunization, microenvironment, resistance, ion channel, heterogeneity, EMT/migration/invasion/metastasis. Drugs/phytochemicals and molecular preparations for the Wnt pathway of CRC treatment have now been developed. Wnt inhibitors are also commonly used clinically for the treatment of CRC. Conclusion The development of drugs/phytochemicals and molecular inhibitors targeting the Wnt pathway can effectively treat colorectal cancer clinically.
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Affiliation(s)
- Hui Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Tianqi Ming
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Shun Tang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Shan Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Han Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Maolun Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Qiu Tao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Haibo Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Department of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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5
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Karami Fath M, Babakhaniyan K, Zokaei M, Yaghoubian A, Akbari S, Khorsandi M, Soofi A, Nabi-Afjadi M, Zalpoor H, Jalalifar F, Azargoonjahromi A, Payandeh Z, Alagheband Bahrami A. Anti-cancer peptide-based therapeutic strategies in solid tumors. Cell Mol Biol Lett 2022; 27:33. [PMID: 35397496 PMCID: PMC8994312 DOI: 10.1186/s11658-022-00332-w] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/17/2022] [Indexed: 02/07/2023] Open
Abstract
Background Nowadays, conventional medical treatments such as surgery, radiotherapy, and chemotherapy cannot cure all types of cancer. A promising approach to treat solid tumors is the use of tumor-targeting peptides to deliver drugs or active agents selectively. Result Introducing beneficial therapeutic approaches, such as therapeutic peptides and their varied methods of action against tumor cells, can aid researchers in the discovery of novel peptides for cancer treatment. The biomedical applications of therapeutic peptides are highly interesting. These peptides, owing to their high selectivity, specificity, small dimensions, high biocompatibility, and easy modification, provide good opportunities for targeted drug delivery. In recent years, peptides have shown considerable promise as therapeutics or targeting ligands in cancer research and nanotechnology. Conclusion This study reviews a variety of therapeutic peptides and targeting ligands in cancer therapy. Initially, three types of tumor-homing and cell-penetrating peptides (CPPs) are described, and then their applications in breast, glioma, colorectal, and melanoma cancer research are discussed.
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Affiliation(s)
- Mohsen Karami Fath
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Kimiya Babakhaniyan
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Zokaei
- Department of Food Science and Technology, Faculty of Nutrition Science, Food Science and Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Veterinary Medicine, Beyza Branch, Islamic Azad University, Beyza, Iran
| | - Azadeh Yaghoubian
- Department of Exercise Physiology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Sadaf Akbari
- Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdieh Khorsandi
- Department of Biotechnology, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Asma Soofi
- Department of Physical Chemistry, School of Chemistry, College of Sciences, University of Tehran, Tehran, Iran
| | - Mohsen Nabi-Afjadi
- Department of Biochemistry, Faculty of biological science, Tarbiat Modares University, Tehran, Iran
| | - Hamidreza Zalpoor
- American Association of Kidney Patients, Tampa, FL, USA.,Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Network of Immunity in Infection, Malignancy & Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN), Tehran, Iran
| | - Fateme Jalalifar
- School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
| | | | - Zahra Payandeh
- Department Medical Biochemistry and Biophysics, Division Medical Inflammation Research, Karolinska Institute, Stockholm, Sweden.
| | - Armina Alagheband Bahrami
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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6
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Li W, Huang M, Wang R, Wang W. Impact of genetically predicted atrial fibrillation on cancer risks: A large cardio-oncology Mendelian randomization study using UK biobank. Front Cardiovasc Med 2022; 9:974402. [PMID: 36684576 PMCID: PMC9849949 DOI: 10.3389/fcvm.2022.974402] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 12/07/2022] [Indexed: 01/07/2023] Open
Abstract
Background Increasing incidences of both atrial fibrillation (AF) and cancer have been observed in recent years. However, the casual association of both serious conditions has been scarcely evaluated and is considered to be a blank slate in cardio-oncology. Thus, we introduced Mendelian randomization (MR) methods to estimate the effects of AF on cancer risks. Methods We performed univariable and multivariable two-sample MR analyses to evaluate the effects of AF on the risk of 19 site-specific types of cancer. This MR study was conducted based on 111 independent AF-associated genetic instruments from genome-wide association studies and summarized-level data from corresponding cancer consortia. Multiple sensitivity analyses, including the leave-one-out analysis, MR-Egger regression, and MR-PRESSO tests, were further performed to examine the potential directional pleiotropic effects. Functional annotation was performed for common differentially expressed genes of AF and prostate cancer (PCA). Results A total of 6,777,155 European-descent people, including 533,725 cases and 6,243,430 controls, were included in the present MR analysis. Univariable MR analyses demonstrated a causal effect of AF on the incidence of PCA [odds ratio (OR): 0.96; 95% confidence interval (CI) 0.92-0.99, p = 0.01], and the causal effect remained significant (OR: 0.65; 95% CI 0.47-0.90, p = 0.01) after adjusting for potential confounders through the multivariable MR approach. However, no casual associations between AF and the other 18 site-specific cancer risks were observed (all p-values were > 0.05). The consistency of outcomes across complementary sensitivity MR methods further supported the causality. The functional analysis emphasized the essential role of antioxidant and xenobiotic catabolic processes in AF and PCA. Conclusion Contrary to the findings of several previous observational studies, our comprehensive MR analyses did not corroborate a causal role for AF in increasing the risk of various types of cancer. They did, however, demonstrate that AF may decrease the risk of PCA. Studies from larger sample sizes and individuals with different ethnic backgrounds are required to further support our conclusions.
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Affiliation(s)
- Wenjie Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mingkai Huang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Wei Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Wei Wang ✉; ✉
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Giovannini D, Andreola F, Spitalieri P, Krasnowska EK, Colini Baldeschi A, Rossi S, Sangiuolo F, Cozzolino M, Serafino A. Natriuretic peptides are neuroprotective on in vitro models of PD and promote dopaminergic differentiation of hiPSCs-derived neurons via the Wnt/β-catenin signaling. Cell Death Discov 2021; 7:330. [PMID: 34725335 PMCID: PMC8560781 DOI: 10.1038/s41420-021-00723-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 12/16/2022] Open
Abstract
Over the last 20 years, the efforts to develop new therapies for Parkinson's disease (PD) have focused not only on the improvement of symptomatic therapy for motor and non-motor symptoms but also on the discovering of the potential causes of PD, in order to develop disease-modifying treatments. The emerging role of dysregulation of the Wnt/β-catenin signaling in the onset and progression of PD, as well as of other neurodegenerative diseases (NDs), renders the targeting of this signaling an attractive therapeutic opportunity for curing this brain disorder. The natriuretic peptides (NPs) atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and C-type natriuretic peptide (CNP), are cardiac and vascular-derived hormones also widely expressed in mammalian CNS, where they seem to participate in numerous brain functions including neural development/differentiation and neuroprotection. We recently demonstrated that ANP affects the Wnt/β-catenin pathway possibly through a Frizzled receptor-mediated mechanism and that it acts as a neuroprotective agent in in vitro models of PD by upregulating this signaling. Here we provide further evidence supporting the therapeutic potential of this class of natriuretic hormones. Specifically, we demonstrate that all the three natriuretic peptides are neuroprotective for SHSY5Y cells and primary cultures of DA neurons from mouse brain, subjected to neurotoxin insult with 6-hydroxydopamine (6-OHDA) for mimicking the neurodegeneration of PD, and these effects are associated with the activation of the Wnt/β-catenin pathway. Moreover, ANP, BNP, CNP are able to improve and accelerate the dopaminergic differentiation and maturation of hiPSCs-derived neural population obtained from two differed healthy donors, concomitantly affecting the canonical Wnt signaling. Our results support the relevance of exogenous ANP, BNP, and CNP as attractive molecules for both neuroprotection and neurorepair in PD, and more in general, in NDs for which aberrant Wnt signaling seems to be the leading pathogenetic mechanism.
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Affiliation(s)
- Daniela Giovannini
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Federica Andreola
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Paola Spitalieri
- Department of Biomedicine and Prevention, Genetic Medicine Unit, University of Rome "Tor Vergata", Rome, Italy
| | | | | | - Simona Rossi
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Federica Sangiuolo
- Department of Biomedicine and Prevention, Genetic Medicine Unit, University of Rome "Tor Vergata", Rome, Italy
| | - Mauro Cozzolino
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Annalucia Serafino
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy.
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8
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Nishiguchi Y, Hata Y, Date R, Fujimoto D, Umemoto S, Kanki T, Yokoi H, Mori KP, Handa T, Watanabe-Takano H, Kanai Y, Yasoda A, Izumi Y, Kakizoe Y, Mochizuki N, Mukoyama M, Kuwabara T. Osteocrin, a bone-derived humoral factor, exerts a renoprotective role in ischemia-reperfusion injury in mice. Nephrol Dial Transplant 2021; 37:444-453. [PMID: 34610136 PMCID: PMC8875462 DOI: 10.1093/ndt/gfab286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 12/11/2022] Open
Abstract
Background Osteocrin (OSTN), a bone-derived humoral factor, was reported to act on heart and bone by potentiating the natriuretic peptide (NP) system. Ostn gene polymorphisms have been associated with renal function decline, but its pathophysiological role in the kidney remains unclear. Methods The role of endogenous OSTN was investigated using systemic Ostn-knockout (KO) mice. As a model for OSTN administration, liver-specific Ostn-overexpressing mice crossed with KO (KO-Tg) were generated. These mice were subjected to unilateral ischemia–reperfusion injury (IRI) and renal lesions after 21 days of insult were evaluated. A comprehensive analysis of the Wnt/β-catenin pathway was performed using a polymerase chain reaction (PCR) array. Reporter plasmid-transfected proximal tubular cells (NRK52E) were used to investigate the mechanism by which OSTN affects the pathway. Results After injury, KO mice showed marginal worsening of renal fibrosis compared with wild-type mice, with comparable renal atrophy. KO-Tg mice showed significantly ameliorated renal atrophy, fibrosis and tubular injury, together with reduced expressions of fibrosis- and inflammation-related genes. The PCR array showed that the activation of the Wnt/β-catenin pathway was attenuated in KO-Tg mice. The downstream targets Mmp7, Myc and Axin2 showed similar results. MMP7 and Wnt2 were induced in corticomedullary proximal tubules after injury, but not in KO-Tg. In NRK52E, OSTN significantly potentiated the inhibitory effects of NP on transforming growth factor β1–induced activation of the Wnt/β-catenin pathway, which was reproduced by a cyclic guanosine monophosphate analog. Conclusions Ectopic Ostn overexpression ameliorated subsequent renal injury following ischemia–reperfusion. OSTN could represent possible renoprotection in acute to chronic kidney disease transition, thus serving as a potential therapeutic strategy.
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Affiliation(s)
- Yoshihiko Nishiguchi
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Yusuke Hata
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Ryosuke Date
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Daisuke Fujimoto
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Shuro Umemoto
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Tomoko Kanki
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Hideki Yokoi
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Keita P Mori
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takaya Handa
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Haruko Watanabe-Takano
- Department of Cell Biology, National Cerebral and Cardiovascular Center, Research Institute, Osaka, Japan
| | - Yugo Kanai
- Department of Diabetes Mellitus and Endocrinology, Osaka Red Cross Hospital, Osaka, Japan
| | - Akihiro Yasoda
- Clinical Research Center, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Yuichiro Izumi
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Yutaka Kakizoe
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Naoki Mochizuki
- Department of Cell Biology, National Cerebral and Cardiovascular Center, Research Institute, Osaka, Japan
| | - Masashi Mukoyama
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Takashige Kuwabara
- Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
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9
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Becskeházi E, Korsós MM, Gál E, Tiszlavicz L, Hoyk Z, Deli MA, Köhler ZM, Keller-Pintér A, Horváth A, Csekő K, Helyes Z, Hegyi P, Venglovecz V. Inhibition of NHE-1 Increases Smoke-Induced Proliferative Activity of Barrett's Esophageal Cell Line. Int J Mol Sci 2021; 22:10581. [PMID: 34638919 PMCID: PMC8509038 DOI: 10.3390/ijms221910581] [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: 08/31/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 01/22/2023] Open
Abstract
Several clinical studies indicate that smoking predisposes its consumers to esophageal inflammatory and malignant diseases, but the cellular mechanism is not clear. Ion transporters protect esophageal epithelial cells by maintaining intracellular pH at normal levels. In this study, we hypothesized that smoking affects the function of ion transporters, thus playing a role in the development of smoking-induced esophageal diseases. Esophageal cell lines were treated with cigarettesmoke extract (CSE), and the viability and proliferation of the cells, as well as the activity, mRNA and protein expression of the Na+/H+ exchanger-1 (NHE-1), were studied. NHE-1 expression was also investigated in human samples. For chronic treatment, guinea pigs were exposed to tobacco smoke, and NHE-1 activity was measured. Silencing of NHE-1 was performed by using specific siRNA. CSE treatment increased the activity and protein expression of NHE-1 in the metaplastic cells and decreased the rate of proliferation in a NHE-1-dependent manner. In contrast, CSE increased the proliferation of dysplastic cells independently of NHE-1. In the normal cells, the expression and activity of NHE-1 decreased due to in vitro and in vivo smoke exposure. Smoking enhances the function of NHE-1 in Barrett's esophagus, and this is presumably a compensatory mechanism against this toxic agent.
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Affiliation(s)
- Eszter Becskeházi
- Department of Pharmacology and Pharmacotherapy, University of Szeged, H-6721 Szeged, Hungary; (E.B.); (M.M.K.); (E.G.)
| | - Marietta Margaréta Korsós
- Department of Pharmacology and Pharmacotherapy, University of Szeged, H-6721 Szeged, Hungary; (E.B.); (M.M.K.); (E.G.)
| | - Eleonóra Gál
- Department of Pharmacology and Pharmacotherapy, University of Szeged, H-6721 Szeged, Hungary; (E.B.); (M.M.K.); (E.G.)
| | - László Tiszlavicz
- Department of Pathology, University of Szeged, H-6725 Szeged, Hungary;
| | - Zsófia Hoyk
- Biological Research Centre, Institute of Biophysics, H-6726 Szeged, Hungary; (Z.H.); (M.A.D.)
| | - Mária A. Deli
- Biological Research Centre, Institute of Biophysics, H-6726 Szeged, Hungary; (Z.H.); (M.A.D.)
| | - Zoltán Márton Köhler
- Department of Biochemistry, University of Szeged, H-6720 Szeged, Hungary; (Z.M.K.); (A.K.-P.)
| | - Anikó Keller-Pintér
- Department of Biochemistry, University of Szeged, H-6720 Szeged, Hungary; (Z.M.K.); (A.K.-P.)
| | - Attila Horváth
- Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary;
| | - Kata Csekő
- Department of Pharmacology and Pharmacotherapy, Medical School & Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (K.C.); (Z.H.)
- PharmInVivo Ltd., H-7629 Pécs, Hungary
| | - Zsuzsanna Helyes
- Department of Pharmacology and Pharmacotherapy, Medical School & Szentágothai Research Centre, University of Pécs, H-7624 Pécs, Hungary; (K.C.); (Z.H.)
- PharmInVivo Ltd., H-7629 Pécs, Hungary
| | - Péter Hegyi
- First Department of Medicine, University of Szeged, H-6720 Szeged, Hungary;
- Medical School & Szentágothai Research Centre, Institute for Translational Medicine, University of Pécs, H-7624 Pécs, Hungary
- Division of Gastroenterology, First Department of Medicine, Medical School, University of Pécs, H-7624 Pécs, Hungary
| | - Viktória Venglovecz
- Department of Pharmacology and Pharmacotherapy, University of Szeged, H-6721 Szeged, Hungary; (E.B.); (M.M.K.); (E.G.)
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10
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Xu M, Liu X, Li P, Yang Y, Zhang W, Zhao S, Zeng Y, Zhou X, Zeng LH, Yang G. Modified Natriuretic Peptides and their Potential Role in Cancer Treatment. Biomed J 2021; 45:118-131. [PMID: 34237455 PMCID: PMC9133251 DOI: 10.1016/j.bj.2021.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/07/2021] [Accepted: 06/28/2021] [Indexed: 01/20/2023] Open
Abstract
The natriuretic peptide family (NPs) is a group of natural endocrine hormones, containing a 17-amino acid ring structure connected by disulfide bonds of two cysteines. In this review, the members of the natriuretic peptide family and their corresponding receptors as well as the anti-cancer effects are introduced. Four cardiac hormones of NPs (ANP, VD, KP and LANP) can effectively inhibit the growth of human small cell lung cancer, breast cancer and other tumors and significantly reduce tumor volume in vivo. The in vitro experiments also show that cardiac hormones, CNP and urodilatin can effectively inhibit the growth of most tumor cells. We then further summarized the anti-cancer mechanism of natriuretic peptides. Finally, we introduce several methods that modify natriuretic peptides, leading to enhance their stability and prolong the biological effects of these peptides, which might be helpful for the clinical application in the future. Peptide therapy is a very promising field for cancer treatments since they can induce the death of cancer cells without dramatically affecting normal cells. The synthesis of a useful and stable natriuretic peptide can enhance the effect of cancer treatments and significantly reduce drug resistance and toxicity.
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Affiliation(s)
- Mengjiao Xu
- School of Bioengineering, Hangzhou Medical College, Hangzhou, 310013, China; Department of Pharmacology, School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| | - Xingzhu Liu
- School of Bioengineering, Hangzhou Medical College, Hangzhou, 310013, China
| | - Ping Li
- School of Bioengineering, Hangzhou Medical College, Hangzhou, 310013, China
| | - Yadong Yang
- School of Bioengineering, Hangzhou Medical College, Hangzhou, 310013, China
| | - Wenyuan Zhang
- School of Bioengineering, Hangzhou Medical College, Hangzhou, 310013, China
| | - Siyu Zhao
- School of Bioengineering, Hangzhou Medical College, Hangzhou, 310013, China
| | - Ying Zeng
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Xile Zhou
- Department of Pathology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310006, China
| | - Ling-Hui Zeng
- Department of Pharmacology, School of Medicine, Zhejiang University City College, Hangzhou, 310015, China
| | - Geng Yang
- Department of Pharmacology, School of Medicine, Zhejiang University City College, Hangzhou, 310015, China.
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11
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Natriuretic Peptides Regulate Prostate Cells Inflammatory Behavior: Potential Novel Anticancer Agents for Prostate Cancer. Biomolecules 2021; 11:biom11060794. [PMID: 34070682 PMCID: PMC8228623 DOI: 10.3390/biom11060794] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 02/05/2023] Open
Abstract
Inflammation, by inducing a tumor-promoting microenvironment, is a hallmark for prostate cancer (PCa) progression. NOD-like receptor protein 3 (NLRP3)-inflammasome activation, interleukin-1β (IL-1β) secretion, and cancer cell-released extracellular vesicles (EVs) contribute to the establishment of tumor microenvironment. We have shown that PC3-derived EVs (PC3-EVs) activate inflammasome cascade in non-cancerous PNT2 cells. It is known that the endogenous biomolecules and Natriuretic Peptides (NPs), such as ANP and BNP, inhibit inflammasome activation in immune cells. Here we investigated whether ANP and BNP modify PCa inflammatory phenotype in vitro. By using PNT2, LNCaP, and PC3 cell lines, which model different PCa progression stages, we analyzed inflammasome activation and the related pathways by Western blot and IL-1β secretion by ELISA. We found that tumor progression is characterized by constitutive inflammasome activation, increased IL-1β secretion, and reduced endogenous NPs expression. The administration of exogenous ANP and BNP, via p38-MAPK or ERK1/2-MAPK, by inducing NLRP3 phosphorylation, counteract inflammasome activation and IL-1β maturation in PC3 and PC3-EVs-treated PNT2 cells, respectively. Our results demonstrate that NPs, by interfering with cell-specific signaling pathways, exert pleiotropic anti-inflammatory effects converging toward inflammasome phosphorylation and suggest that NPs can be included in a drug repurposing process for PCa.
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12
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Effects of pre-mixed hydraulic calcium silicate putties on osteogenic differentiation of human dental pulp stem cells in vitro. J Dent 2021; 108:103653. [PMID: 33798641 DOI: 10.1016/j.jdent.2021.103653] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES An experimental tricalcium silicate and dicalcium silicate-containing endodontic putty has been designed to overcome the issue of reduced shelf life after exposure to atmospheric moisture during repeated opening of the container for clinical retrieval. The present study examined the effects of this experimental hydraulic putty on the mineralogenic characteristics of osteogenic lineage-committed human dental pulp stem cells (hDPSCs), by comparing the cellular responses with a commercially available putty (EndoSequence BC RRM Putty). METHODS The osteogenic potential of hDPSCs that had been exposed to the putties was examined using quantitative reverse-transcription polymerase chain reaction for osteogenic gene expressions and western blot for osteogenic protein expressions. Alkaline phosphatase activity assay and alizarin red S staining were performed to detect changes in production of the intracellular enzyme and extracellular matrix mineralization respectively. RESULTS Osteogenic differentiation of the hDPSCs was significantly enhanced after exposure to the pre-mixed hydraulic putties, with no significant difference between these two examined putties. CONCLUSIONS The experimental hydraulic tricalcium silicate putty enhances osteogenic differentiation of hDPSCs to the same extent as a commercially available tricalcium silicate putty. CLINICAL SIGNIFICANCE The experimental hydraulic putty appears to be an alternative to the commercial putty when used for applications involving the regeneration of bone in endodontics. Animal models are required for validating its potential in enhancing osteogenesis in vivo.
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13
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Dehghanbanadaki N, Taghdir M, Naderi-Manesh H. Investigation of Atrial Natriuretic Peptide as A Competitive Inhibitory Candidate Against Wnt/β-Catenin Signalling: A Molecular Dynamics Approach. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-020-10085-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Liu H, Liu X, Li Y, Zhou X, Tan X, Niu B, Cheng N, Liu H. Novel Peptide Inhibitors of β-Catenin Effectively Suppress the Tumorigenesis of Colorectal Cancer. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-020-10080-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Hu Y, Lou J, Jin Z, Yang X, Shan W, Du Q, Liao Q, Xu J, Xie R. Advances in research on the regulatory mechanism of NHE1 in tumors. Oncol Lett 2021; 21:273. [PMID: 33717270 PMCID: PMC7885159 DOI: 10.3892/ol.2021.12534] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/17/2020] [Indexed: 12/11/2022] Open
Abstract
Tumors pose a major threat to human health and present with difficulties that modern medicine has yet to overcome. It has been demonstrated that the acid-base balance of the tumor microenvironment is closely associated with the dynamic balance in the human body and that it regulates several processes, such as cell proliferation and differentiation, intracellular enzyme activity, and cytoskeletal assembly and depolymerization. It has been well established that the regulation of intra- and extracellular pH depends on a series of functional ion transporters and hydrogen ion channels, such as the Na+/H+ exchanger (NHE) protein and thee Cl/HCO3- exchange protein, among which the NHE1 member of the NHE family has been attracting increasing attention in recent years, particularly in studies on the correlation between pH regulation and tumors. NHE1 is a housekeeping gene encoding a protein that is widely expressed on the surface of all plasma membranes. Due to its functional domain, which determines the pHi at its N-terminus and C-terminus, NHE1 is involved in the regulation of the cellular pH microenvironment. It has been reported in the literature that NHE1 can regulate cell volume, participate in the transmembrane transport of intracellular and extracellular ions, affect cell proliferation and apoptosis, and regulate cell behavior and cell cycle progression; however, research on the role of NHE1 in tumorigenesis and tumor development in various systems is at its early stages. The aim of the present study was to review the current research on the correlation between the NHE family proteins and various systemic tumors, in order to indicate a new direction for antitumor drug development with the pH microenvironment as the target.
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Affiliation(s)
- Yanxia Hu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jun Lou
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Zhe Jin
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Xiaoxu Yang
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Weixi Shan
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Qian Du
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Qiushi Liao
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jingyu Xu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Rui Xie
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
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16
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Sferrazza G, Corti M, Brusotti G, Pierimarchi P, Temporini C, Serafino A, Calleri E. Nature-derived compounds modulating Wnt/ β -catenin pathway: a preventive and therapeutic opportunity in neoplastic diseases. Acta Pharm Sin B 2020; 10:1814-1834. [PMID: 33163337 PMCID: PMC7606110 DOI: 10.1016/j.apsb.2019.12.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 02/07/2023] Open
Abstract
The Wnt/β-catenin signaling is a conserved pathway that has a crucial role in embryonic and adult life. Dysregulation of the Wnt/β-catenin pathway has been associated with diseases including cancer, and components of the signaling have been proposed as innovative therapeutic targets, mainly for cancer therapy. The attention of the worldwide researchers paid to this issue is increasing, also in view of the therapeutic potential of these agents in diseases, such as Parkinson's disease (PD), for which no cure is existing today. Much evidence indicates that abnormal Wnt/β-catenin signaling is involved in tumor immunology and the targeting of Wnt/β-catenin pathway has been also proposed as an attractive strategy to potentiate cancer immunotherapy. During the last decade, several products, including naturally occurring dietary agents as well as a wide variety of products from plant sources, including curcumin, quercetin, berberin, and ginsenosides, have been identified as potent modulators of the Wnt/β-catenin signaling and have gained interest as promising candidates for the development of chemopreventive or therapeutic drugs for cancer. In this review we make an overview of the nature-derived compounds reported to have antitumor activity by modulating the Wnt/β-catenin signaling, also focusing on extraction methods, chemical features, and bio-activity assays used for the screening of these compounds.
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Affiliation(s)
- Gianluca Sferrazza
- Institute of Translational Pharmacology, National Research Council of Italy, Rome 03018, Italy
| | - Marco Corti
- Department of Drug Sciences, University of Pavia, Pavia 27100, Italy
| | - Gloria Brusotti
- Department of Drug Sciences, University of Pavia, Pavia 27100, Italy
| | - Pasquale Pierimarchi
- Institute of Translational Pharmacology, National Research Council of Italy, Rome 03018, Italy
| | | | - Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council of Italy, Rome 03018, Italy
| | - Enrica Calleri
- Department of Drug Sciences, University of Pavia, Pavia 27100, Italy
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17
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How Dysregulated Ion Channels and Transporters Take a Hand in Esophageal, Liver, and Colorectal Cancer. Rev Physiol Biochem Pharmacol 2020; 181:129-222. [PMID: 32875386 DOI: 10.1007/112_2020_41] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Over the last two decades, the understanding of how dysregulated ion channels and transporters are involved in carcinogenesis and tumor growth and progression, including invasiveness and metastasis, has been increasing exponentially. The present review specifies virtually all ion channels and transporters whose faulty expression or regulation contributes to esophageal, hepatocellular, and colorectal cancer. The variety reaches from Ca2+, K+, Na+, and Cl- channels over divalent metal transporters, Na+ or Cl- coupled Ca2+, HCO3- and H+ exchangers to monocarboxylate carriers and organic anion and cation transporters. In several cases, the underlying mechanisms by which these ion channels/transporters are interwoven with malignancies have been fully or at least partially unveiled. Ca2+, Akt/NF-κB, and Ca2+- or pH-dependent Wnt/β-catenin signaling emerge as cross points through which ion channels/transporters interfere with gene expression, modulate cell proliferation, trigger epithelial-to-mesenchymal transition, and promote cell motility and metastasis. Also miRs, lncRNAs, and DNA methylation represent potential links between the misexpression of genes encoding for ion channels/transporters, their malfunctioning, and cancer. The knowledge of all these molecular interactions has provided the basis for therapeutic strategies and approaches, some of which will be broached in this review.
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18
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Mao YQ, Han SF, Zhang SL, Zhang ZY, Kong CY, Chen HL, Li ZM, Cai PR, Han B, Wang LS. An approach using Caenorhabditis elegans screening novel targets to suppress tumour cell proliferation. Cell Prolif 2020; 53:e12832. [PMID: 32452127 PMCID: PMC7309951 DOI: 10.1111/cpr.12832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/07/2020] [Accepted: 04/29/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Tumour cell proliferation requires high metabolism to meet the bioenergetics and biosynthetic needs. Dauer in Caenorhabditis elegans is characterized by lower metabolism, and we established an approach with C elegans to find potential tumour therapy targets. MATERIALS AND METHODS RNAi screening was used to find dauer-related genes, and these genes were further analysed in glp-1(-) mutants for tumour-suppressing testing. The identified tumour-related genes were verified in clinical tumour tissues. RESULTS The lifespan of glp-1(-) mutants was found to be extended by classical dauer formation signalling. Then, 61 of 287 kinase-coding genes in Caenorhabditis elegans were identified as dauer-related genes, of which 27 were found to be homologous to human oncogenes. Furthermore, 12 dauer-related genes were randomly selected for tumour-suppressing test, and six genes significantly extended the lifespan of glp-1(-) mutants. Of these six genes, F47D12.9, W02B12.12 and gcy-21 were newly linked to dauer formation. These three new dauer-related genes significantly suppressed tumour cell proliferation and thus extended the lifespan of glp-1(-) mutants in a longevity- or dauer-independent manner. The mRNA expression profiles indicated that these dauer-related genes trigged similar low metabolism pattern in glp-1(-) mutants. Notably, the expression of homolog gene DCAF4L2/F47D12.9, TSSK6/W02B12.12 and NPR1/gcy-21 was found to be higher in glioma compared with adjacent normal tissue. In addition, the high expression of TSSK6/W02B12.12 and NPR1/gcy-21 correlated with a worse survival in glioma patients. CONCLUSIONS Dauer gene screening in combination with tumour-suppressing test in glp-1(-) mutants provided a useful approach to find potential targets for tumour therapy via suppressing tumour cell proliferation and rewiring tumour cell metabolism.
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Affiliation(s)
- Yu-Qin Mao
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - San-Feng Han
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Shi-Long Zhang
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Zheng-Yan Zhang
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Chao-Yue Kong
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Hui-Ling Chen
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Zhan-Ming Li
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Pei-Ran Cai
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Bing Han
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
| | - Li-Shun Wang
- Key Laboratory of Whole-period Monitoring and Precise Intervention of Digestive Cancer (SMHC), Minhang Hospital, Fudan University, Shanghai, China.,Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, Shanghai, China
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19
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Serafino A, Giovannini D, Rossi S, Cozzolino M. Targeting the Wnt/β-catenin pathway in neurodegenerative diseases: recent approaches and current challenges. Expert Opin Drug Discov 2020; 15:803-822. [PMID: 32281421 DOI: 10.1080/17460441.2020.1746266] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Wnt/β-catenin signaling is an evolutionarily conserved pathway having a crucial role in embryonic and adult life. Specifically, the Wnt/β-catenin axis is pivotal to the development and homeostasis of the nervous system, and its dysregulation has been associated with various neurological disorders, including neurodegenerative diseases. Therefore, this signaling pathway has been proposed as a potential therapeutic target against neurodegeneration. AREAS COVERED This review focuses on the role of Wnt/β-catenin pathway in the pathogenesis of neurodegenerative diseases, including Parkinson's, Alzheimer's Diseases and Amyotrophic Lateral Sclerosis. The evidence showing that defects in the signaling might be involved in the development of these diseases, and the pharmacological approaches tested so far, are discussed. The possibilities that this pathway offers in terms of new therapeutic opportunities are also considered. EXPERT OPINION The increasing interest paid to the role of Wnt/β-catenin pathway in the onset of neurodegenerative diseases demonstrates how targeting this signaling for therapeutic purposes could be a great opportunity for both neuroprotection and neurorepair. Without overlooking some licit concerns about drug safety and delivery to the brain, there is growing and more convincing evidence that restoring this signaling in neurodegenerative diseases may strongly increase the chance to develop disease-modifying treatments for these brain pathologies.
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Affiliation(s)
- Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
| | - Daniela Giovannini
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
| | - Simona Rossi
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
| | - Mauro Cozzolino
- Institute of Translational Pharmacology, National Research Council (CNR) , Rome, Italy
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20
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Cao L, Yuan Z, Liu M, Stock C. (Patho-)Physiology of Na +/H + Exchangers (NHEs) in the Digestive System. Front Physiol 2020; 10:1566. [PMID: 32009977 PMCID: PMC6974801 DOI: 10.3389/fphys.2019.01566] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023] Open
Abstract
Na+/H+ exchangers (NHEs) are expressed in virtually all human tissues and organs. Two major tasks of those NHE isoforms that are located in plasma membranes are cell volume control by Na+-uptake and cellular pH regulation by H+-extrusion. Several NHEs, particularly NHE 1–4 and 8, are involved in the pathogenesis of diseases of the digestive system such as inflammatory bowel disease (ulcerative colitis, Crohn’s disease) and gastric and colorectal tumorigenesis. In the present review, we describe the physiological purposes, possible malfunctions and pathophysiological effects of the different NHE isoforms along the alimentary canal from esophagus to colon, including pancreas, liver and gallbladder. Particular attention is paid to the functions of NHEs in injury repair and to the role of NHE1 in Barrett’s esophagus. The impact of NHEs on gut microbiota and intestinal mucosal integrity is also dealt with. As the hitherto existing findings are not always consistent, sometimes even controversial, they are compared and critically discussed.
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Affiliation(s)
- Li Cao
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenglin Yuan
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mei Liu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Christian Stock
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hanover, Germany
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21
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Wnt Binding Affinity Prediction for Putative Frizzled-Type Cysteine-Rich Domains. Int J Mol Sci 2019; 20:ijms20174168. [PMID: 31454915 PMCID: PMC6747125 DOI: 10.3390/ijms20174168] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 12/25/2022] Open
Abstract
Several proteins other than the frizzled receptors (Fzd) and the secreted Frizzled-related proteins (sFRP) contain Fzd-type cysteine-rich domains (CRD). We have termed these domains “putative Fzd-type CRDs”, as the relevance of Wnt signalling in the majority of these is unknown; the RORs, an exception to this, are well known for mediating non-canonical Wnt signalling. In this study, we have predicted the likely binding affinity of all Wnts for all putative Fzd-type CRDs. We applied both our previously determined Wnt‒Fzd CRD binding affinity prediction model, as well as a newly devised model wherein the lipid term was forced to contribute favourably to the predicted binding energy. The results obtained from our new model indicate that certain putative Fzd CRDs are much more likely to bind Wnts, in some cases exhibiting selectivity for specific Wnts. The results of this study inform the investigation of Wnt signalling modulation beyond Fzds and sFRPs.
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22
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Hajikazemi M, Sohrabi H, Yamchi A, Saeedi M. The effects of valproic acid on the mRNA expression of Natriuretic Peptide Receptor A and KQT-like subfamily Q-1 in human colon cancer cell lines. ALEXANDRIA JOURNAL OF MEDICINE 2019. [DOI: 10.1016/j.ajme.2017.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Mona Hajikazemi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Hoda Sohrabi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ahad Yamchi
- Department of Plant Breeding and Biotechnology, College of Plant Production Gorgan University of Agriculture Science and Natural Recourses, Gorgan, Iran
| | - Mohsen Saeedi
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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23
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Mizerska-Kowalska M, Kreczko-Kurzawa J, Zdzisińska B, Czerwonka A, Sławińska-Brych A, Maćkiewicz Z, Nidzworski D, Kandefer-Szerszeń M. Neutral endopeptidase (NEP) inhibitors - thiorphan, sialorphin, and its derivatives exert anti-proliferative activity towards colorectal cancer cells in vitro. Chem Biol Interact 2019; 307:105-115. [PMID: 31054283 DOI: 10.1016/j.cbi.2019.04.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 04/05/2019] [Accepted: 04/28/2019] [Indexed: 11/17/2022]
Abstract
Neutral endopeptidase (NEP) is an enzyme implicated in development of different tumors, e.g. colorectal cancer (CRC). In this study, the anti-cancer effects of NEP inhibitors, thiorphan (synthetic compound) and sialorphin (naturally occurring pentapeptide) on CRC cells were investigated. Moreover, we synthesized some derivatives of sialorphin (alanine scan analogues: AHNPR, QANPR, QHAPR, QHNAR; N-acetylated sialorphin; C-amidated sialorphin, and C-amidated alanine scan analogues) to examine the biological activity of these inhibitors on CRC cells. The cytotoxic activity of the NEP inhibitors against CRC cell lines (SW620 and LS180) and normal human fibroblasts (HSF) was evaluated. Additionally, the influence of NEP inhibitors on proliferation, cell cycle progression, induction of apoptosis, and the level of phosphorylation of MAP kinases and mTORC1 signaling pathway proteins in CRC cells were examined. The NEP inhibitors were non-cytotoxic to HSF cells; however, most of them slightly decreased the viability and inhibited proliferation of CRC cells. The N-acetylation or C-amidation of sialorphin or its alanine scan analogues resulted in decreased or abolished anti-proliferative activity of the NEP inhibitors towards the CRC cells. Additionally, thiorphan and sialorphin enhanced the anti-proliferative activity of other CRC-cell growth inhibitors (atrial natriuretic peptide-ANP and melphalan-MEL). The mechanisms involved in the anti-proliferative effects of the tested inhibitors were mediated via NEP and associated with induction of cell cycle arrest in the G0/G1 phase, increased activity of ERK1/2, and a reduced level of phosphorylation of mTOR (Ser2448), 4E-BP1, and p70S6K. However, the NEP inhibitors did not induce apoptosis in the CRC cells. These results have indicated that thiorphan and sialorphin or its derivatives AHNPR, QANPR, QHAPR, and QHNAR have the potential to be used as agents in treatment of patients with CRC.
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Affiliation(s)
- Magdalena Mizerska-Kowalska
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| | - Joanna Kreczko-Kurzawa
- University of Gdansk, Laboratory of Biological Macromolecules' Chemistry, Department of Molecular Biotechnology, Faculty of Chemistry, Gdansk, Poland.
| | - Barbara Zdzisińska
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| | - Arkadiusz Czerwonka
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| | - Adrianna Sławińska-Brych
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Cell Biology, Lublin, Poland.
| | - Zbigniew Maćkiewicz
- University of Gdansk, Laboratory of Biological Macromolecules' Chemistry, Department of Molecular Biotechnology, Faculty of Chemistry, Gdansk, Poland.
| | - Dawid Nidzworski
- The Institute of Biotechnology and Molecular Medicine, Gdansk, Poland.
| | - Martyna Kandefer-Szerszeń
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
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24
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Jiao C, Pang J, Shen L, Lu W, Zhang P, Liu Y, Li J, Jia X, Wang Y. A “weak acid and weak base” type fluorescent probe for sensing pH: mechanism and application in living cells. RSC Adv 2019; 9:20982-20988. [PMID: 35515522 PMCID: PMC9066030 DOI: 10.1039/c9ra03203g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/30/2019] [Indexed: 12/14/2022] Open
Abstract
A simple pH fluorescent probe, N-(6-morpholino-1, 3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl) isonicotinamide (NDI), based on naphthalimide as the fluorophore and isonicotinic acid hydrazide as the reaction site was synthesized and characterized. It is useful for monitoring acidic and alkaline pH. The results of pH titration indicated that NDI exhibits obvious emission enhancement with a pKa of 4.50 and linear response to small pH fluctuations within the acidic range of 3.00–6.50. Interestingly, NDI also displayed strong pH-dependent characteristics with pKa 9.34 and linearly responded to an alkaline range of 8.30–10.50. The sensing response mechanism was confirmed by 1H NMR and ESI-MS spectroscopy. The mechanism of the optical responses of NDI toward pH was also determined by density functional theory (DFT) calculations. In addition, NDI displayed a highly selective and sensitive response to hydrogen ions and hydroxyl ions. The probe was successfully applied to image acidic and alkaline pH value fluctuations in HeLa cells and has lysosomal targeting ability. When the probe was in the protonation process, the fluorescence intensity gradually decreased, whereas when the probe was in the deprotonation process, the fluorescence intensity gradually increased.![]()
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Affiliation(s)
- Chunpeng Jiao
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
| | - Jingxiang Pang
- Shandong Medicinal Biotechnology Center
- Shandong Academy of Medical Sciences
- Jinan
- China
| | - Li Shen
- College of Science
- China University of Petroleum (East China)
- Qingdao
- China
- College of Chemical Engineering and Environmental Chemistry
| | - Wenjuan Lu
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
| | - Pingping Zhang
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
| | - Yuanyuan Liu
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
| | - Jing Li
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
| | - Xianhui Jia
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
| | - Yanfeng Wang
- School of Medicine and Life Sciences
- University of Jinan-Shandong Academy of Medical Sciences
- Jinan 250200
- China
- Institute of Materia Medica
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25
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Qi S, Li Q, Liu W, Ren H, Zhang H, Wu J, Ge J, Wang P. Coumarin/fluorescein-fused fluorescent dyes for rapidly monitoring mitochondrial pH changes in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 204:590-597. [PMID: 29980060 DOI: 10.1016/j.saa.2018.06.095] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/25/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
On base of the good optical properties of coumarin and fluorescein, we designed and synthesized two coumarin/fluorescein-fused fluorescent dyes (CF dyes), which enlarged the emission wavelength and increased the Stokes shift of fluorescein moiety. The corresponding optical properties of CF dyes were investigated in detail. CF dyes could easily introduce other groups to design different functional molecules. CF dyes also exhibited rapid and sensitive responses to pH values in the range of 4.0-7.4 through the characterization of absorption and fluorescence spectra in buffer solution. More importantly, CF ethyl ester dye (CFE dye) not only showed good cell membrane permeability and low cytotoxicity, but also had the ability to rapidly monitor mitochondrial pH changes in living cells.
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Affiliation(s)
- Sujie Qi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Qi Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
| | - Haohui Ren
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Hongyan Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Jiasheng Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Jiechao Ge
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, City U-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
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26
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Sun DI, Tasca A, Haas M, Baltazar G, Harland RM, Finkbeiner WE, Walentek P. Na+/H+ Exchangers Are Required for the Development and Function of Vertebrate Mucociliary Epithelia. Cells Tissues Organs 2018; 205:279-292. [PMID: 30300884 DOI: 10.1159/000492973] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 08/19/2018] [Indexed: 11/19/2022] Open
Abstract
Na+/H+ exchangers (NHEs) represent a highly conserved family of ion transporters that regulate pH homeostasis. NHEs as well as other proton transporters were previously linked to the regulation of the Wnt signaling pathway, cell polarity signaling, and mucociliary function. Furthermore, mutations in the gene SLC9A3 (encoding NHE3) were detected as additional risk factors for airway infections in cystic fibrosis patients. Here, we used the Xenopus embryonic mucociliary epidermis as well as human airway epithelial cells (HAECs) as models to investigate the functional roles of NHEs in mucociliary development and regeneration. In Xenopus embryos, NHEs 1-3 were expressed during epidermal development, and loss of NHE function impaired mucociliary clearance in tadpoles. Clearance defects were caused by reduced cilia formation, disrupted alignment of basal bodies in multiciliated cells (MCCs), and dysregulated mucociliary gene expression. These data also suggested that NHEs may contribute to the activation of Wnt signaling in mucociliary epithelia. In HAECs, pharmacological inhibition of NHE function also caused defective ciliation and regeneration in airway MCCs. Collectively, our data revealed a requirement for NHEs in vertebrate mucociliary epithelia and linked NHE activity to cilia formation and function in differentiating MCCs. Our results provide an entry point for the understanding of the contribution of NHEs to signaling, development, and pathogenesis in the human respiratory tract.
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Affiliation(s)
- Dingyuan I Sun
- Genetics, Genomics and Development Division, Molecular and Cell Biology Department, University of California, Berkeley, California, USA.,Department of Pathology, University of California, San Francisco, California, USA
| | - Alexia Tasca
- Renal Division, Department of Medicine, University Freiburg Medical Center and ZBSA - Center for Systems Biological Analysis, Freiburg, Germany
| | - Maximilian Haas
- Renal Division, Department of Medicine, University Freiburg Medical Center and ZBSA - Center for Systems Biological Analysis, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine, Albert Ludwigs University Freiburg, Freiburg, Germany
| | - Grober Baltazar
- Genetics, Genomics and Development Division, Molecular and Cell Biology Department, University of California, Berkeley, California, USA.,Children's Medical Research Institute, Westmead, New South Wales, Australia
| | - Richard M Harland
- Genetics, Genomics and Development Division, Molecular and Cell Biology Department, University of California, Berkeley, California, USA
| | - Walter E Finkbeiner
- Department of Pathology, University of California, San Francisco, California, USA
| | - Peter Walentek
- Genetics, Genomics and Development Division, Molecular and Cell Biology Department, University of California, Berkeley, California, .,Renal Division, Department of Medicine, University Freiburg Medical Center and ZBSA - Center for Systems Biological Analysis, Freiburg, .,Spemann Graduate School of Biology and Medicine, Albert Ludwigs University Freiburg, Freiburg,
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27
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Morjen M, Othman H, Abdelkafi-Koubaa Z, Messadi E, Jebali J, El Ayeb M, Abid NS, Luis J, Marrakchi N. Targeting α1 inserted domain (I) of α1β1 integrin by Lebetin 2 from M. lebetina transmediterranea venom decreased tumorigenesis and angiogenesis. Int J Biol Macromol 2018; 117:790-799. [DOI: 10.1016/j.ijbiomac.2018.05.230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 01/18/2023]
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28
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Colini Baldeschi A, Pittaluga E, Andreola F, Rossi S, Cozzolino M, Nicotera G, Sferrazza G, Pierimarchi P, Serafino A. Atrial Natriuretic Peptide Acts as a Neuroprotective Agent in in Vitro Models of Parkinson's Disease via Up-regulation of the Wnt/β-Catenin Pathway. Front Aging Neurosci 2018; 10:20. [PMID: 29449807 PMCID: PMC5799264 DOI: 10.3389/fnagi.2018.00020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/17/2018] [Indexed: 12/14/2022] Open
Abstract
In the last decades increasing evidence indicated a crucial role of the Wnt/β-catenin signaling in development of midbrain dopaminergic (mDA) neurons. Recently dysregulation of this pathway has been proposed as a novel pathomechanism leading to Parkinson's disease (PD) and some of the molecules participating to the signaling have been evaluated as potential therapeutic targets for PD. Atrial natriuretic peptide (ANP) is a cardiac-derived hormone having a critical role in cardiovascular homeostasis. ANP and its receptors (NPRs) are widely expressed in mammalian central nervous system (CNS) where they could be implicated in the regulation of neural development, synaptic transmission and information processing, as well as in neuroprotection. Until now, the effects of ANP in the CNS have been mainly ascribed to the binding and activation of NPRs. We have previously demonstrated that ANP affects the Wnt/β-catenin signaling in colorectal cancer cells through a Frizzled receptor-mediated mechanism. The purpose of this study was to investigate if ANP is able to exert neuroprotective effect on two in vitro models of PD, and if this effect could be related to activation of the Wnt/β-catenin signaling. As cellular models of DA neurons, we used the proliferating or RA-differentiated human neuroblastoma cell line SH-SY5Y. In both DA neuron-like cultures, ANP is able to positively affect the Wnt/β-catenin signaling, by inducing β-catenin stabilization and nuclear translocation. Importantly, activation of the Wnt pathway by ANP exerts neuroprotective effect when these two cellular systems were subjected to neurotoxic insult (6-OHDA) for mimicking the neurodegeneration of PD. Our data support the relevance of exogenous ANP as an innovative therapeutic molecule for midbrain, and more in general for brain diseases for which aberrant Wnt signaling seems to be involved.
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Affiliation(s)
| | - Eugenia Pittaluga
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Federica Andreola
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Simona Rossi
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Mauro Cozzolino
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Giuseppe Nicotera
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Gianluca Sferrazza
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Pasquale Pierimarchi
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
| | - Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
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29
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Li X, Liang Y, Qiao Z, Yang J, Han P, Zhao B, Li F, Lv H, Guo J, Gao F, Li L. Transcriptional Analysis of Endothelial Cell Alternation Induced by Atrial Natriuretic Polypeptide in Human Umbilical Vein Endothelial Cells. Int Heart J 2018; 59:197-202. [PMID: 29279524 DOI: 10.1536/ihj.16-522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study was to explore how atrial natriuretic polypeptide (ANP) affects the properties and function of endothelial cells. Gene expression data GSE56976 generated at 0, 1, and 6 hours after ANP incubation in human umbilical vein endothelial cells (HUVEC) was used. Microarray data were preprocessed for differentially expressed genes (DEGs) in each time-dependent group. Next, gene ontology (GO), pathway analysis, and transcriptional regulation were performed. Co-expression clustering analysis of DEGs and functional enrichment analysis of co-expression modules were processed. RT-PCR analysis was performed to validate gene expression. DEGs were obtained and their counts were increased from 0 hours to 6 hours. No overlapping DEGs were obtained among the 3 groups. The DEGs of ANP_6hours, including TGFB2 (transforming growth factor, beta 2), LTF (lactotransferrin/lactoferrin), and ETV7 (Ets variant 7) were mainly related with cell apoptosis and immune responses. The DEGs in the network of ANP_0hour were mainly associated with epithelial ion transport processes. In addition, 3 co-expressed modules were detected. CSF2 (colony stimulating factor 2) and PF4 (platelet factor 4) of the blue module were related with cytolysis, while FXYD1 (FXYD domain containing ion transport regulator 1) and TGFB2 of the yellow module were mainly enriched in ion transport and the ovulation cycle. The expression of TGFB2 obtained by microarray analysis was consistent with that of RT-PCR. Ion transport could be affected promptly after ANP treatment, and subsequently, the cytolysis of vein endothelial cells may be promoted and endothelial permeability would be enhanced, followed by activated immune responses.
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Affiliation(s)
- Xuefeng Li
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | - Yu Liang
- Nursing College of Mudanjiang Medical College
| | - Zhili Qiao
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | - Jiaoxia Yang
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | | | | | - Fengxiang Li
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | - Hengjuan Lv
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | - Jifang Guo
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | - Fengmin Gao
- Department of Cardiology, Hongqi Hospital, Mudanjiang Medical College
| | - Li Li
- Department of Physiology, Mudanjiang Medical College
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30
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Saliba W, Rennert HS, Gronich N, Gruber SB, Rennert G. Association of atrial fibrillation and cancer: Analysis from two large population-based case-control studies. PLoS One 2018; 13:e0190324. [PMID: 29324747 PMCID: PMC5764256 DOI: 10.1371/journal.pone.0190324] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/12/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND An association between atrial fibrillation (AF) and risk of cancer has been suggested in several studies, including prospective cohort studies. However, the magnitude and the temporal nature of this association remain unclear. METHODS Data from two large prospective population-based case-control studies, the Molecular Epidemiology of Colorectal Cancer (MECC, n = 8,383) and the Breast Cancer in Northern Israel Study (BCINIS, n = 11,608), were used to better understand the nature and temporality of a possible association between cancer diagnosis and AF events before and after cancer diagnosis. A case-control study approach was employed to study prior AF as a risk factor for cancer, and a cohort study approach was employed to study incident cancer as a risk factor for AF. RESULTS AF was associated with a significant reduced odds of cancer as reflected in the case-control approach, with an adjusted OR = 0.77 (95% CI, 0.65-0.91), while cancer was not found to be significantly associated with elevated risk of AF in the cohort approach, with an adjusted HR = 1.10 (0.98-1.23). The immediate period (90 days) after an AF event was associated with a 1.85 times increased risk of cancer, and the immediate period after the diagnosis of cancer was associated with a 3.4 fold increased risk of AF. These findings probably reflect both the effect of acute transient conditions associated with new cancer diagnosis and detection bias. Similar results were identified with colorectal and breast cancer cases. CONCLUSIONS Atrial fibrillation of longer than 90 days duration is associated with reduced odds of new cancer diagnosis. The results of this study suggest that an association observed in prior research may be due to instances related to cancer diagnosis and detection bias rather than a causal relationship. However, there may be bias in the sampling and residual confounding that distort the associations.
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Affiliation(s)
- Walid Saliba
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion–Israel Institute of Technology, Haifa, Israel
- Clalit National Cancer Control Center, Haifa, Israel
- * E-mail:
| | - Hedy S. Rennert
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion–Israel Institute of Technology, Haifa, Israel
- Clalit National Cancer Control Center, Haifa, Israel
| | - Naomi Gronich
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion–Israel Institute of Technology, Haifa, Israel
- Clalit National Cancer Control Center, Haifa, Israel
| | - Stephen B. Gruber
- USC Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, United States of America
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Gad Rennert
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion–Israel Institute of Technology, Haifa, Israel
- Clalit National Cancer Control Center, Haifa, Israel
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31
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Chao J, Wang H, Zhang Y, Yin C, Huo F, Sun J, Zhao M. A novel pyrene-based dual multifunctional fluorescent probe for differential sensing of pH and HSO3− and their bioimaging in live cells. NEW J CHEM 2018. [DOI: 10.1039/c7nj03903d] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We designed and synthesized a new fluorescent probe for detecting pH and HSO3− using pyrene as an electron donor (D) and pyridine as an electron acceptor (A).
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Affiliation(s)
- Jianbin Chao
- Research Institute of Applied Chemistry, Shanxi University
- Taiyuan 030006
- P. R. China
| | - Huijuan Wang
- Research Institute of Applied Chemistry, Shanxi University
- Taiyuan 030006
- P. R. China
- School of Chemistry and Chemical Engineering, Shanxi University
- Taiyuan 030006
| | - Yongbin Zhang
- Research Institute of Applied Chemistry, Shanxi University
- Taiyuan 030006
- P. R. China
| | - Caixia Yin
- Institute of Molecular Science, Shanxi University
- Taiyuan 030006
- China
| | - Fangjun Huo
- Research Institute of Applied Chemistry, Shanxi University
- Taiyuan 030006
- P. R. China
| | - Jinyu Sun
- School of Chemistry and Chemical Engineering, Xinzhou Teachers University
- Xinzhou 034000
- China
| | - Minggen Zhao
- School of Chemistry and Chemical Engineering, Xinzhou Teachers University
- Xinzhou 034000
- China
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32
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Chao J, Wang H, Zhang Y, Yin C, Huo F, Song K, Li Z, Zhang T, Zhao Y. A novel ‘‘donor-π-acceptor’’ type fluorescence probe for sensing pH: mechanism and application in vivo. Talanta 2017; 174:468-476. [DOI: 10.1016/j.talanta.2017.06.051] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/08/2017] [Accepted: 06/18/2017] [Indexed: 01/21/2023]
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33
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Izgut-Uysal VN, Acar N, Birsen I, Ozcan F, Ozbey O, Soylu H, Avci S, Tepekoy F, Akkoyunlu G, Yucel G, Ustunel I. Apelin-APJ system is responsible for stress-induced increase in atrial natriuretic peptide expression in rat heart. Tissue Cell 2017; 51:91-96. [PMID: 29162289 DOI: 10.1016/j.tice.2017.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 10/26/2017] [Accepted: 10/30/2017] [Indexed: 01/20/2023]
Abstract
BACKGROUND The cardiovascular system is a primary target of stress and stress is the most important etiologic factor in cardiovascular diseases. Stressors increase expressions of atrial natriuretic peptide (ANP) and apelin in cardiac tissue. AIM The aim of the present study was to investigate whether stress-induced apelin has an effect on the expression of ANP in the right atrium of rat heart. METHODS The rats were divided into the control, stress and F13A+stress groups. In the stress and F13A+stress groups, the rats were subjected to water immersion and restraint stress (WIRS) for 6h. In the F13A+stress group, apelin receptor antagonist F13A, was injected intravenously immediately before application of WIRS. The plasma samples were obtained for the measurement of corticosterone and atrial natriuretic peptide. The atrial samples were used for immunohistochemistry and western blot analysis. RESULTS F13A administration prevented the rise of plasma corticosterone and ANP levels induced by WIRS. While WIRS application increased the expressions of apelin, HIF-1α and ANP in atrial tissue, while F13A prevented the stress-induced increase in the expression of HIF-1α and ANP. CONCLUSION Stress-induced apelin induces ANP expression in atrial tissue and may play a role in cardiovascular homeostasis by increasing ANP expression under WIRS conditions.
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Affiliation(s)
| | - Nuray Acar
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Ilknur Birsen
- Department of Physiology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Filiz Ozcan
- Department of Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Ozlem Ozbey
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Hakan Soylu
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Sema Avci
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Filiz Tepekoy
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Gokhan Akkoyunlu
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Gultekin Yucel
- Department of Biochemistry, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey
| | - Ismail Ustunel
- Department of Histology and Embryology, Faculty of Medicine, Akdeniz University, 07070 Antalya, Turkey.
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34
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Aleck K, Hallman K, Quigley M, Lloyd V, Szmyd M, Ruskin D, Bedgood T, Dinda S. Effects of Atrial Natriuretic Peptide on p53 and Estrogen Receptor in Breast Cancer Cells. Biores Open Access 2017; 6:141-150. [PMID: 29098120 PMCID: PMC5665415 DOI: 10.1089/biores.2017.0009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The atrial natriuretic peptide (ANP) hormone is secreted by cardiac atrial myocytes and acts to regulate blood pressure homeostasis in humans. Previous research indicates ANP treatment significantly decreases the proliferation of human prostate cancer cells, pancreatic adenocarcinoma, and breast cancer cells. Minimal studies have been conducted with regard to ANP regulating tumor suppressor genes and steroid hormone receptors in breast cancer cells. Our study analyzed the effects of ANP in combination with 17β-estradiol (E2) and antiestrogen treatments on p53 and ERα levels in T-47D breast cancer cells. Preliminary studies through Western blot analysis showed that ANP treatment decreases p53 and ERα expression levels in a concentration-dependent (10-100 nM) manner. Treatment with ANP alone, at a 100 nM concentration, causes a decrease of p53 and ERα expression compared with Cs (control stripped), but with E2 and antiestrogen combinations, expression of both protein levels decreased compared with treatments without ANP. Combined treatment with E2, an estrogen antagonist, and ANP decreased cellular proliferation compared with treatments without ANP, except in the case of raloxifene (RAL). Our studies indicate that ANP has potential as a therapeutic breast cancer treatment and should inspire further studies on the molecular mechanism of ANP in T-47D breast cancer cells.
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Affiliation(s)
- Katie Aleck
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Kelly Hallman
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Meghan Quigley
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Victoria Lloyd
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Monica Szmyd
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Dana Ruskin
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Tyler Bedgood
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
| | - Sumi Dinda
- Department of Biomedical Diagnostic Therapeutic Sciences, School of Health Sciences, Institute for Stem Cell Research and Center for Biomedical Research, Oakland University, Rochester, Michigan
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Serafino A, Sferrazza G, Colini Baldeschi A, Nicotera G, Andreola F, Pittaluga E, Pierimarchi P. Developing drugs that target the Wnt pathway: recent approaches in cancer and neurodegenerative diseases. Expert Opin Drug Discov 2016; 12:169-186. [PMID: 27960558 DOI: 10.1080/17460441.2017.1271321] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Wnt/β-catenin signaling is an evolutionarily conserved pathway that has a crucial role in embryonic and adult life. Dysregulation of Wnt/β-catenin pathway has been associated with various diseases, including cancer and neurodegenerative disorders, including Parkinson's disease (PD). Several molecular components of the signaling have been proposed as innovative targets for cancer therapy, and very recently, some of them have been also evaluated as potential therapeutic targets for PD. Areas covered: This review focuses on the role of Wnt/β-catenin pathway in the pathogenensis of cancer and PD, examining some recent therapeutic approaches that are ongoing in preclinical and clinical studies. The possibilities that this signaling offers for diagnosis and prognosis of neoplastic diseases, and the concerns of targeting this pathway are also discussed. Expert opinion: Despite the stimulating results obtained in preclinical studies on cancer and other disease models, the clinical experience with Wnt modulators is still in its infancy, and is mainly restricted to anticancer therapy. Even with concerns of the safety of drugs targeting Wnt signaling, the attention of researchers worldwide is increasing to this issue in terms of their therapeutic potential for diseases such as PD, for which no cure exists.
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Affiliation(s)
- Annalucia Serafino
- a Institute of Translational Pharmacology , National Research Council (CNR) , Rome , Italy
| | - Gianluca Sferrazza
- a Institute of Translational Pharmacology , National Research Council (CNR) , Rome , Italy
| | | | - Giuseppe Nicotera
- a Institute of Translational Pharmacology , National Research Council (CNR) , Rome , Italy
| | - Federica Andreola
- a Institute of Translational Pharmacology , National Research Council (CNR) , Rome , Italy
| | - Eugenia Pittaluga
- a Institute of Translational Pharmacology , National Research Council (CNR) , Rome , Italy
| | - Pasquale Pierimarchi
- a Institute of Translational Pharmacology , National Research Council (CNR) , Rome , Italy
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Lee CH, Ha GW, Kim JH, Kim SH. Modulation in Natriuretic Peptides System in Experimental Colitis in Rats. Dig Dis Sci 2016; 61:1060-8. [PMID: 26660905 DOI: 10.1007/s10620-015-3969-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/08/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND Renin-angiotensin system is involved in the pathophysiology of colonic inflammation. However, there are a few reports about modulation of natriuretic peptide system. AIMS This study investigates whether a local atrial natriuretic peptide (ANP) system exists in rat colon and whether ANP plays a role in the regulation of colonic motility in experimental colitis rat model. METHODS Experimental colitis was induced by an intake of 5 % dextran sulfate sodium (DSS) dissolved in tap water for 7 days. After rats were killed, plasma hormone concentrations and mRNAs for natriuretic peptide system were measured. Functional analysis of colonic motility in response to ANP was performed using taenia coli. RESULTS DSS-treated colon showed an increased necrosis with massive infiltration of inflammatory cells. The colonic natriuretic peptide receptor-A mRNA level and particulate guanylyl cyclase activity in response to ANP from colonic tissue membranes were higher, and the mRNA levels of ANP and natriuretic peptide receptor-B were lower in DSS-treated rats than in control rats. ANP decreased the frequency of basal motility in a dose-dependent manner but did not change the amplitude. The inhibitory responses of frequency of basal motility to ANP and 8-bromo-cGMP were enhanced in DSS-treated rat colon. CONCLUSION In conclusion, augmentation of inhibitory effect on basal motility by ANP in experimental colitis may be due an increased expression of colonic natriuretic peptide receptor-A mRNA. These data suggest that local natriuretic peptide system is partly involved in the pathophysiology of experimental colitis.
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Affiliation(s)
- Chang Ho Lee
- Department of Surgery, Research Institute for Endocrine Sciences, Chonbuk National University Medical School, Jeonju, Korea
| | - Gi Won Ha
- Department of Surgery, Research Institute for Endocrine Sciences, Chonbuk National University Medical School, Jeonju, Korea
| | - Jong Hun Kim
- Department of Surgery, Research Institute for Endocrine Sciences, Chonbuk National University Medical School, Jeonju, Korea.
| | - Suhn Hee Kim
- Department of Physiology, Research Institute for Endocrine Sciences, Chonbuk National University Medical School, 20 Gunjiro, Dukjingu, Jeonju, 561-180, Korea.
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38
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Song GJ, Bai SY, Dai X, Cao XQ, Zhao BX. A ratiometric lysosomal pH probe based on the imidazo[1,5-a]pyridine–rhodamine FRET and ICT system. RSC Adv 2016. [DOI: 10.1039/c5ra25947a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new pH-activatable ratiometric fluorescent probe (RhMP) has been developed based on FRET. This probe displayed good selectivity, and excellent reversibility. In addition, RhMP has low cytotoxicity and has been successfully applied in HeLa cells.
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Affiliation(s)
- Guang-Jie Song
- School of Chemical Engineering
- Taishan Medical University
- Tai'an 271000
- PR China
- Institute of Organic Chemistry
| | - Su-Yun Bai
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100
- P. R. China
| | - Xi Dai
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- PR China
| | - Xiao-Qun Cao
- School of Chemical Engineering
- Taishan Medical University
- Tai'an 271000
- PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- PR China
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Peptide-Based Treatment: A Promising Cancer Therapy. J Immunol Res 2015; 2015:761820. [PMID: 26568964 PMCID: PMC4629048 DOI: 10.1155/2015/761820] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 12/14/2014] [Indexed: 12/16/2022] Open
Abstract
Many new therapies are currently being used to treat cancer. Among these new methods, chemotherapy based on peptides has been of great interest due to the unique advantages of peptides, such as a low molecular weight, the ability to specifically target tumor cells, and low toxicity in normal tissues. In treating cancer, peptide-based chemotherapy can be mainly divided into three types, peptide-alone therapy, peptide vaccines, and peptide-conjugated nanomaterials. Peptide-alone therapy may specifically enhance the immune system's response to kill tumor cells. Peptide-based vaccines have been used in advanced cancers to improve patients' overall survival. Additionally, the combination of peptides with nanomaterials expands the therapeutic ability of peptides to treat cancer by enhancing drug delivery and sensitivity. In this review, we mainly focus on the new advances in the application of peptides in treating cancer in recent years, including diagnosis, treatment, and prognosis.
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40
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Zhao XX, Ge D, Dai X, Wu WL, Miao JY, Zhao BX. A water-soluble pH fluorescence probe based on quaternary ammonium salt for bioanalytical applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:218-224. [PMID: 26142177 DOI: 10.1016/j.saa.2015.06.111] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 05/15/2015] [Accepted: 06/28/2015] [Indexed: 06/04/2023]
Abstract
A novel fluorescence probe Rhodamine-Ethanediamine-Iodomethane (REI) was successfully prepared to serve as an efficient sensing platform for H(+) with fully reversibility mainly between the pH 4.2 and 7.2 in simple buffer solution. The introduction of quaternary ammonium salt with positive charge can not only manage to increase the solubility and sensitivity of probe REI, but also avoid the "alkalizing effect" due to charge-induced effect compared to the reference probe Rhodamine-Ethanediamine (RE). In particular, probe REI was well used for monitoring the weak acid pH fluctuations in lysosome of the live HeLa cells due to its excellent biological properties, including low cytotoxicity, high selectivity, good sensitivity and membrane permeability.
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Affiliation(s)
- Xuan-Xuan Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Di Ge
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China; School of Biological Science and Technology, University of Jinan, Jinan 250022, PR China.
| | - Xi Dai
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Wen-Li Wu
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Jun-Ying Miao
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan 250100, PR China.
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
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Atrial natriuretic peptide prevents cancer metastasis through vascular endothelial cells. Proc Natl Acad Sci U S A 2015; 112:4086-91. [PMID: 25775533 PMCID: PMC4386325 DOI: 10.1073/pnas.1417273112] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Most patients suffering from cancer die of metastatic disease. Surgical removal of solid tumors is performed as an initial attempt to cure patients; however, surgery is often accompanied with trauma, which can promote early recurrence by provoking detachment of tumor cells into the blood stream or inducing systemic inflammation or both. We have previously reported that administration of atrial natriuretic peptide (ANP) during the perioperative period reduces inflammatory response and has a prophylactic effect on postoperative cardiopulmonary complications in lung cancer surgery. Here we demonstrate that cancer recurrence after curative surgery was significantly lower in ANP-treated patients than in control patients (surgery alone). ANP is known to bind specifically to NPR1 [also called guanylyl cyclase-A (GC-A) receptor]. In mouse models, we found that metastasis of GC-A-nonexpressing tumor cells (i.e., B16 mouse melanoma cells) to the lung was increased in vascular endothelium-specific GC-A knockout mice and decreased in vascular endothelium-specific GC-A transgenic mice compared with control mice. We examined the effect of ANP on tumor metastasis in mice treated with lipopolysaccharide, which mimics systemic inflammation induced by surgical stress. ANP inhibited the adhesion of cancer cells to pulmonary arterial and micro-vascular endothelial cells by suppressing the E-selectin expression that is promoted by inflammation. These results suggest that ANP prevents cancer metastasis by inhibiting the adhesion of tumor cells to inflamed endothelial cells.
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Serafino A, Pierimarchi P. Atrial natriuretic peptide: a magic bullet for cancer therapy targeting Wnt signaling and cellular pH regulators. Curr Med Chem 2015; 21:2401-9. [PMID: 24524761 PMCID: PMC4063317 DOI: 10.2174/0929867321666140205140152] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 08/19/2013] [Accepted: 08/19/2013] [Indexed: 02/06/2023]
Abstract
Atrial natriuretic peptide (ANP) is a cardiac hormone playing a crucial role in
cardiovascular homeostasis mainly through blood volume and pressure regulation.
In the last years, the new property ascribed to ANP of inhibiting tumor growth
both in vitro and in vivo has made this peptide an attractive
candidate for anticancer therapy. The molecular mechanism underlying the
anti-proliferative effect of ANP has been mainly related to its interaction with
the specific receptors NPRs, through which this natriuretic hormone inhibits
some metabolic targets critical for cancer development, including the
Ras-MEK1⁄2-ERK1⁄2 kinase cascade, functioning as a multikinase inhibitor. In
this review we summarize the current knowledge on this topic, focusing on our
recent data demonstrating that the antitumor activity of this natriuretic
hormone is also mediated by a concomitant effect on the Wnt/β-catenin pathway
and on the pH regulation ability of cancer cells, through a Frizzled-related
mechanism. This peculiarity of simultaneously targeting two processes crucial
for neoplastic transformation and solid tumor survival reinforces the utility of
ANP for the development of both preventive and therapeutic strategies.
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Affiliation(s)
| | - P Pierimarchi
- Institute of Translational Pharmacology - National Research Council of Italy, Via Fosso del Cavaliere 100, 00133, Rome, Italy.
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De Vito P. Atrial natriuretic peptide: an old hormone or a new cytokine? Peptides 2014; 58:108-16. [PMID: 24973596 DOI: 10.1016/j.peptides.2014.06.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 02/07/2023]
Abstract
Atrial natriuretic peptide (ANP) a cardiovascular hormone mainly secreted by heart atria in response to stretching forces induces potent diuretic, natriuretic and vasorelaxant effects and plays a major role in the homeostasis of blood pressure as well as of water and salt balance. The hormone can also act as autocrine/paracrine factor and modulate several immune functions as well as cytoprotective effects. ANP contributes to innate immunity being able to: (i) stimulate the host defense against extracellular microbes by phagocytosis and Reactive Oxygen Species (ROS) release; (ii) inhibit the synthesis and release of proinflammatory markers such as TNF-α, IL-1, MCP-1, nitric oxide (NO), cyclooxygenase-2 (COX-2); (iii) inhibit the expression of adhesion molecules such as ICAM-1 and E-selectin. ANP can also affect the adaptive immunity being able to: (i) reduce the number of CD4(+) CD8(+) lymphocytes as well as to increase the CD4(-) CD8(-) cells; (ii) stimulate the differentiation of naïve CD4(+) cells toward the Th2 and/or Th17 phenotype. The hormone shows protective effects during: (i) ventricular hypertrophy and myocardial injury; (ii) atherosclerosis and hypertension by the induction of antiproliferative effects; (iii) oxidative stress counteracting the dangerous effects of ROS; (iv) growth of tumors cells by the induction of apoptosis or necrosis. Since not much is known about of the role of ANP locally produced and released by non-cardiac cells, this review outlines the contribution of ANP in different aspect of innate as well as adaptive immunity also with respect to the excessive cell growth in physiological and/or pathological conditions.
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Affiliation(s)
- Paolo De Vito
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133 Rome, Italy.
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44
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Eid AA, Hussein KA, Niu LN, Li GH, Watanabe I, Al-Shabrawey M, Pashley DH, Tay FR. Effects of tricalcium silicate cements on osteogenic differentiation of human bone marrow-derived mesenchymal stem cells in vitro. Acta Biomater 2014; 10:3327-34. [PMID: 24726977 PMCID: PMC4058646 DOI: 10.1016/j.actbio.2014.04.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Revised: 03/30/2014] [Accepted: 04/04/2014] [Indexed: 01/01/2023]
Abstract
Tricalcium silicate cements have been successfully employed in the biomedical field as bioactive bone and dentin substitutes, with widely acclaimed osteoactive properties. This research analyzed the effects of different tricalcium silicate cement formulations on the temporal osteoactivity profile of human bone marrow-derived mesenchymal stem cells (hMW-MSCs). These cells were exposed to four commercially available tricalcium silicate cement formulations in osteogenic differentiation medium. After 1, 3, 7 and 10 days, quantitative real-time polymerase chain reaction and Western blotting were performed to detect expression of the target osteogenic markers ALP, RUNX2, OSX, OPN, MSX2 and OCN. After 3, 7, 14 and 21 days, alkaline phosphatase assay was performed to detect changes in intracellular enzyme level. An Alizarin Red S assay was performed after 28 days to detect extracellular matrix mineralization. In the presence of tricalcium silicate cements, target osteogenic markers were downregulated at the mRNA and protein levels at all time points. Intracellular alkaline phosphatase enzyme levels and extracellular mineralization of the experimental groups were not significantly different from the untreated control. Quantitative polymerase chain reaction results showed increases in downregulation of RUNX2, OSX, MSX2 and OCN with increasing time of exposure to the tricalcium silicate cements, while ALP showed peak downregulation at day 7. For Western blotting, OSX, OPN, MSX2 and OCN showed increased downregulation with increased exposure time to the tested cements. Alkaline phosphatase enzyme levels generally declined after day 7. Based on these results, it is concluded that tricalcium silicate cements do not induce osteogenic differentiation of hBM-MSCs in vitro.
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Affiliation(s)
- Ashraf A Eid
- Department of Dental and Biomedical Material Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Khaled A Hussein
- Department of Oral Biology, Georgia Regents University, Augusta, GA, USA; Oral and Dental Research Division, Department of Surgery and Medicine, National Research Center, Egypt
| | - Li-na Niu
- Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Guo-hua Li
- Department of Stomatology, Fuzhou Dongfang Hospital, Fuzhou, China
| | - Ikuya Watanabe
- Department of Dental and Biomedical Material Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Mohamed Al-Shabrawey
- Department of Oral Biology, Georgia Regents University, Augusta, GA, USA; Department of Graduate Studies, Georgia Regents University, Augusta, GA, USA
| | - David H Pashley
- Department of Oral Biology, Georgia Regents University, Augusta, GA, USA; Department of Graduate Studies, Georgia Regents University, Augusta, GA, USA
| | - Franklin R Tay
- Department of Oral Biology, Georgia Regents University, Augusta, GA, USA; Department of Graduate Studies, Georgia Regents University, Augusta, GA, USA.
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A novel tescalcin-sodium/hydrogen exchange axis underlying sorafenib resistance in FLT3-ITD+ AML. Blood 2014; 123:2530-9. [DOI: 10.1182/blood-2013-07-512194] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Key Points
A novel TESC-NEH1 pathway is involved in FLT3-ITD+ AML pathogenesis. Inhibition of NHE1 overcomes sorafenib resistance in FLT3-ITD+AML.
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46
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Liu Z, Liu Z, Zhang X, Xue P, Zhang H. RY10-4 suppressed metastasis of MDA-MB-231 by stabilizing ECM and E-cadherin. Biomed Pharmacother 2014; 68:439-45. [PMID: 24721328 DOI: 10.1016/j.biopha.2014.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 03/04/2014] [Indexed: 12/21/2022] Open
Abstract
In the article, we investigated the anti-metastasis mechanism of RY10-4, an anti-tumor compound derived from protoapigenone, in breast tumor cells MB-MDA-231. The analog of protoapigenone with an unaromatic B-ring was verified to suppress the proliferation of several tumor cells by previous research that also showed that several tumor progression such as inducing apoptosis and anti-angiogenesis could be acted on by RY10-4. In the article, we investigated the mechanism about how RY10-4 suppressed the invasion of MDA-MB-231. Firstly, the transwells assays with and without matrigel were adapted to evaluate the anti-metastasis and anti-invasion activity. Much research had demonstrated that the ECM and E-cadherin/β-catenin complex play an important role in cell adhesion and the formation of the cell skeleton, and as we knew the abnormal and absent expression of ECM and E-cadherin/β-catenin complex are found in many malignant cells. The result demonstrated that the amount and distribution of E-cadherin/β-catenin complex were backed on track by RY10-4, and the expression of MMP-2/9 in MDA-MB-231, which functions as a major negative factor of ECM, was down-regulated after co-cultured with RY10-4. Furthermore the pathway related to MMP-2/9 and E-cadherin was assessed by the western blot. As the results showed, the MAPK pathway and the spread of β-catenin were affected by RY10-4 to exert the anti-metastasis on MDA-MB-231. Collectively, the research revealed a novel anti-tumor ability of RY10-4 by inhibiting migration and invasion in MDA-MB-231.
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Affiliation(s)
- Ziwei Liu
- School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, China
| | - Zhimei Liu
- Humanwell Healthcare (group) Co. Ltd, Gaoxing Avenue, Wuhan, China
| | - Xiulan Zhang
- School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, China
| | - Pingping Xue
- Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation of Hubei Province, College of Pharmacy, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Zhang
- School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan, China.
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Serafino A, Moroni N, Zonfrillo M, Andreola F, Mercuri L, Nicotera G, Nunziata J, Ricci R, Antinori A, Rasi G, Pierimarchi P. WNT-pathway components as predictive markers useful for diagnosis, prevention and therapy in inflammatory bowel disease and sporadic colorectal cancer. Oncotarget 2014; 5:978-92. [PMID: 24657851 PMCID: PMC4011599 DOI: 10.18632/oncotarget.1571] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 01/11/2014] [Indexed: 12/11/2022] Open
Abstract
The key role of the Wnt/β-catenin signaling in colorectal cancer (CRC) insurgence and progression is now recognized and several therapeutic strategies targeting this pathway are currently in developing. Wnt/β-catenin signaling not only dominates the early stages of sporadic colorectal cancer (SCC), but could also represent the connection between inflammatory bowel diseases (IBD) and increased risk of developing SCC. The knowledge on the sequential molecular events of Wnt-signaling cascade in IBD and during colorectal carcinogenesis, might provide new diagnostic/prognostic markers and could be helpful for optimizing the treatment protocols, thus improving the efficacy of Wnt-targeting therapies. We performed a comparative evaluation of the expression of some crucial molecules participating to Wnt signaling in an animal model of chemically-induced CRC and in human tissues obtained from patients suffering from IBD or at sequential stages of SCC. Specifically, we analyzed upstream events of Wnt signaling including β-catenin nuclear translocation and loss of E-cadherin and APC functions, and downstream events including c-Myc and Cyclin-D1 expression. We demonstrated that these crucial components of the Wnt/β-catenin pathway, when evaluated by immunohistochemistry using a multiparametric approach that includes the analyses of both expression and localization, could be potent markers for diagnosis, prevention and therapy in IBD and SCC, also possessing a predictive value for responsiveness to Wnt-targeting therapies. Furthermore, we showed that the animal model of chemically-induced CRC mimics the molecular events of Wnt signaling during IBD and SCC development in humans and may therefore be suitable for testing chemopreventive or therapeutic drugs targeting this pathway.
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Affiliation(s)
- Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Noemi Moroni
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Manuela Zonfrillo
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Federica Andreola
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Luana Mercuri
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Giuseppe Nicotera
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | | | - Riccardo Ricci
- Department of Pathology, Catholic University of Rome, Italy
| | | | - Guido Rasi
- Department of Experimental Medicine and Biochemical Science, University of Rome “Tor Vergata”, Italy
- European Medicines Agency, London, United Kingdom
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Zhao XX, Chen XP, Shen SL, Li DP, Zhou S, Zhou ZQ, Xiao YH, Xi G, Miao JY, Zhao BX. A novel pH probe based on a rhodamine–rhodamine platform. RSC Adv 2014. [DOI: 10.1039/c4ra07555b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A novel pH probe based on rhodamine–rhodanine platform.
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Affiliation(s)
- Xuan-Xuan Zhao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Xin-Peng Chen
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Shi-Li Shen
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Dong-Peng Li
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Shuai Zhou
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Ze-Quan Zhou
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Yu-Hao Xiao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Gang Xi
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
| | - Jun-Ying Miao
- Institute of Developmental Biology
- School of Life Science
- Shandong University
- Jinan 250100, P.R. China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100, P.R. China
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Vu-Phan D, Grachtchouk V, Yu J, Colby LA, Wicha MS, Koenig RJ. The thyroid cancer PAX8-PPARG fusion protein activates Wnt/TCF-responsive cells that have a transformed phenotype. Endocr Relat Cancer 2013; 20:725-39. [PMID: 24025583 PMCID: PMC3839064 DOI: 10.1530/erc-13-0058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A chromosomal translocation results in the production of a paired box 8-peroxisome proliferator-activated receptor gamma (PAX8-PPARG) fusion protein (PPFP) in ∼35% of follicular thyroid carcinomas. To examine the role of PPFP in thyroid oncogenesis, the fusion protein was stably expressed in the non-transformed rat thyroid cell line PCCL3. PPFP conferred on PCCL3 cells the ability to invade through Matrigel and to form colonies in anchorage-independent conditions. PPFP also increased the fraction of cells with Wnt/TCF-responsive green fluorescent protein reporter gene expression. This Wnt/TCF-activated population was enriched for colony-forming and invading cells. These actions of PPFP required a functional PPARG DNA binding domain (DBD) within PPFP and were further stimulated by PPARG agonists. These data indicate that PPFP, through its PPARG DBD, induces Wnt/TCF pathway activation in a subpopulation of cells, and these cells have properties of cellular transformation including increased invasiveness and anchorage-independent growth.
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Affiliation(s)
- Dang Vu-Phan
- Cellular and Molecular Biology Graduate Program, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, 48109, USA
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Serafino A, Pica F, Andreola F, Gaziano R, Moroni N, Moroni G, Zonfrillo M, Pierimarchi P, Sinibaldi-Vallebona P, Garaci E. Thymosin α1 activates complement receptor-mediated phagocytosis in human monocyte-derived macrophages. J Innate Immun 2013; 6:72-88. [PMID: 23797159 DOI: 10.1159/000351587] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 04/19/2013] [Indexed: 11/19/2022] Open
Abstract
Thymosin α1 (Tα1) is a naturally occurring thymic peptide used worldwide in clinical trials for the treatment of infectious diseases and cancer. The immunomodulatory activity of Tα1 on innate immunity effector cells has been extensively described, but its mechanism of action is not completely understood. We report that Tα1-exposed human monocyte-derived macrophages (MDMs) assume the typical activated morphology also exhibited by lipopolysaccharide-activated MDMs, but show a comparatively higher ability of internalizing fluorescent beads and zymosan particles. Tα1 exposure also promptly and dramatically stimulates MDM phagocytosis and killing of Aspergillus niger conidia starting as soon as 30 min after challenge. The effect is dose dependent and early coupled to low transcription of the proinflammatory cytokines tumor necrosis factor α and interleukin-6 and unmodified Toll-like receptor expression. The Tα1-stimulated phagocytosis is strictly dependent on the integrity of the microtubule network and protein kinase C activity and occurs by a variation in the classic zipper model, with recruitment of vinculin and actin at the phagosome exhibiting a punctate distribution. These findings indicate that, in human mature MDMs, Tα1 implements pathogen internalization and killing via the stimulation of the complement receptor-mediated phagocytosis. Our observations document that Tα1 is an early and potent activator of innate immunity and reinforce the concept of its pleiotropy.
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Affiliation(s)
- Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council of Italy, Rome, Italy
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