1
|
Everaert K, Holm-Larsen T, Bou Kheir G, Rottey S, Weiss JP, Vande Walle J, Kabarriti AE, Dossche L, Hervé F, Spinoit AF, Nørgaard JP, Juul KV. Potential clinical applications of current and future oral forms of desmopressin (Review). Exp Ther Med 2024; 28:303. [PMID: 38873038 PMCID: PMC11170333 DOI: 10.3892/etm.2024.12592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 03/06/2024] [Indexed: 06/15/2024] Open
Abstract
Desmopressin is a synthetic analogue of vasopressin and a selective vasopressin receptor 2 agonist. It was first synthesised in 1967 and utilised for its antidiuretic properties. It is also used in bleeding disorders to enhance clotting. Other potential uses of the drug have been reported. The present review aims to provide a broad overview of the literature on potential further uses of oral forms of desmopressin. Key therapeutic areas of interest were identified based on known physiological activities/targets of desmopressin or reports of an effect of desmopressin in the literature. The feasibility of adequate dosing with oral forms of the drug was also considered. Systematic literature searches were carried out using the silvi.ai software for the identified areas, and summaries of available papers were included in tables and discussed. The results of the searches showed that desmopressin has been investigated for its efficacy in a number of areas, including bleeding control, renal colic, the central nervous system and oncology. Evidence suggests that oral desmopressin may have the potential to be of clinical benefit for renal colic and bleeding control in particular. However, further research is needed to clarify its effect in these areas, including randomised controlled studies and studies specifically of oral formulations (and doses). Further research may also yield findings for cancer, cognition and overactive bladder.
Collapse
Affiliation(s)
- Karel Everaert
- Faculty of Medicine and Health Sciences, Department of Human Structure and Repair, Ghent University Hospital, 9000 Ghent, Belgium
| | - Tove Holm-Larsen
- Faculty of Medicine and Health Sciences, Department of Human Structure and Repair, Ghent University Hospital, 9000 Ghent, Belgium
| | - George Bou Kheir
- Department of Urology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Sylvie Rottey
- Drug Research Unit and Department of Medical Oncology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Jeffrey P. Weiss
- Department of Urology, State University of New York Downstate Health Sciences University, New York City, NY 11203, USA
| | - Johan Vande Walle
- Department of Pediatric Nephrology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Abdo E. Kabarriti
- Department of Urology, State University of New York Downstate Health Sciences University, New York City, NY 11203, USA
| | - Lien Dossche
- Faculty of Medicine and Health Sciences, Department of Internal Medicine and Pediatrics, Ghent University Hospital, 9000 Ghent, Belgium
| | - François Hervé
- Department of Urology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Anne-Françoise Spinoit
- Department of Pediatric & Reconstructive Urology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Jens Peter Nørgaard
- Research & Development, Ferring Pharmaceuticals A/S, Ferring International PharmaScience Center, 2770 Copenhagen, Denmark
| | - Kristian Vinter Juul
- Research & Development, Ferring Pharmaceuticals A/S, Ferring International PharmaScience Center, 2770 Copenhagen, Denmark
| |
Collapse
|
2
|
Srinivasarao DA, Shah S, Famta P, Vambhurkar G, Jain N, Pindiprolu SKSS, Sharma A, Kumar R, Padhy HP, Kumari M, Madan J, Srivastava S. Unravelling the role of tumor microenvironment responsive nanobiomaterials in spatiotemporal controlled drug delivery for lung cancer therapy. Drug Deliv Transl Res 2024:10.1007/s13346-024-01673-z. [PMID: 39037533 DOI: 10.1007/s13346-024-01673-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2024] [Indexed: 07/23/2024]
Abstract
Design and development of efficient drug delivery technologies that impart site-specificity is the need of the hour for the effective treatment of lung cancer. The emergence of materials science and nanotechnology partially helped drug delivery scientists to achieve this objective. Various stimuli-responsive materials that undergo degradation at the pathological tumor microenvironment (TME) have been developed and explored for drug delivery applications using nanotechnological approaches. Nanoparticles (NPs), owing to their small size and high surface area to volume ratio, demonstrated enhanced cellular internalization, permeation, and retention at the tumor site. Such passive accumulation of stimuli-responsive materials helped to achieve spatiotemporally controlled and targeted drug delivery within the tumors. In this review, we discussed various stimuli-physical (interstitial pressure, temperature, and stiffness), chemical (pH, hypoxia, oxidative stress, and redox state), and biological (receptor expression, efflux transporters, immune cells, and their receptors or ligands)-that are characteristic to the TME. We mentioned an array of biomaterials-based nanoparticulate delivery systems that respond to these stimuli and control drug release at the TME. Further, we discussed nanoparticle-based combinatorial drug delivery strategies. Finally, we presented our perspectives on challenges related to scale-up, clinical translation, and regulatory approvals.
Collapse
Affiliation(s)
- Dadi A Srinivasarao
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India.
| | - Saurabh Shah
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Paras Famta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Ganesh Vambhurkar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Naitik Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Sai Kiran S S Pindiprolu
- Aditya Pharmacy College, Surampalem, 533 437, Andhra Pradesh, India
- Jawaharlal Nehru Technological University, Kakinada, 533 003, Andhra Pradesh, India
| | - Anamika Sharma
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Rahul Kumar
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Hara Prasad Padhy
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Meenu Kumari
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), 500037, Telangana, Hyderabad, India
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India
| | - Saurabh Srivastava
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad, Balanagar, Hyderabad, 500037, Telangana, India.
| |
Collapse
|
3
|
Xiao L, Fang Z, Tang Y, Sun Y, Zhu Z, Li J, Zhou M, Yang N, Zheng K, Hu S. Evaluation of gastrin-releasing peptide receptor, prostate-specific membrane antigen, and neurotensin receptor 1 as potential biomarkers for accurate prostate cancer stratified diagnosis. EJNMMI Res 2024; 14:55. [PMID: 38880858 PMCID: PMC11180645 DOI: 10.1186/s13550-024-01116-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 06/02/2024] [Indexed: 06/18/2024] Open
Abstract
BACKGROUND Studies on single-target PET imaging of gastrin-releasing peptide receptor (GRPR), prostate-specific membrane antigen (PSMA), or neurotensin receptor 1(NTR1) have been reported. However, the performance of these three targets in the progression of PCa remains unclear. Our study aims to compare the expression of GRPR, PSMA, and NTR1 in patients with prostatic intraepithelial neoplasia (PIN), prostate cancer (PCa), and lymph node metastasis. We synthesized molecular probes targeting the markers to achieve a non-invasive precise detection of PCa patients with PET/CT imaging. METHODS In this study, the expression of GRPR, PSMA, and NTR1 was evaluated by immunohistochemistry in 34 PIN, 171 PCa, and 22 lymph node metastasis tissues of patients. The correlation between their expression and the clinicopathological parameters of PCa patients was assessed. Sixteen PCa patients with different Gleason scores (GS) underwent dual-tracer (68Ga-NOTA-RM26 and 68Ga-NOTA-PSMA617) PET/CT. RESULTS In the PIN stage, the expression of GRPR was significantly higher than that of PSMA and NTR1 (P < 0.001), while NTR1 expression was significantly higher than PSMA and GRPR expression in primary PCa (P = 0.001). High PSMA expression in PCa patients was associated with shorter progression-free survival (P = 0.037) and overall survival (P = 0.035). PCa patients with high GS had higher tumor uptake of 68Ga-NOTA-PSMA617 than those with low GS (P = 0.001), while PCa patients with low GS had higher tumor uptake of 68Ga-NOTA-RM26 than those with high GS (P = 0.001). CONCLUSIONS This study presents three novel biomarkers (PSMA, GRPR, and NTR1) as imaging agents for PET/CT, and may offer a promising approach for non-invasive precise detection and Gleason grade prediction of PCa patients.
Collapse
Affiliation(s)
- Ling Xiao
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Zhihui Fang
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
- Department of Nuclear Medicine, The Second Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yongxiang Tang
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Yanyan Sun
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, 450000, China
| | - Zehua Zhu
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Jian Li
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Ming Zhou
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Nengan Yang
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Kai Zheng
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China
| | - Shuo Hu
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha City, 410008, Hunan Province, P.R. China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China.
- Key Laboratory of Biological Nanotechnology of National Health Commission, Xiangya Hospital, Central South University, Changsha, 410008, China.
| |
Collapse
|
4
|
Shiner A, Sperandio RC, Naimi M, Emmenegger U. Prostate Cancer Liver Metastasis: An Ominous Metastatic Site in Need of Distinct Management Strategies. J Clin Med 2024; 13:734. [PMID: 38337427 PMCID: PMC10856097 DOI: 10.3390/jcm13030734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Prostate cancer liver metastasis (PCLM), seen in upwards of 25% of metastatic castration-resistant PC (mCRPC) patients, is the most lethal site of mCRPC with a median overall survival of 10-14 months. Despite its ominous prognosis and anticipated rise in incidence due to longer survival with contemporary therapy, PCLM is understudied. This review aims to summarize the existing literature regarding the risk factors associated with the development of PCLM, and to identify areas warranting further research. A literature search was conducted through Ovid MEDLINE from 2000 to March 2023. Relevant subject headings and text words were used to capture the following concepts: "Prostatic Neoplasms", "Liver Neoplasms", and "Neoplasm Metastasis". Citation searching identified additional manuscripts. Forty-one studies were retained for detailed analysis. The clinical risk factors for visceral/liver metastasis included <70 years, ≥T3 tumor, N1 nodal stage, de novo metastasis, PSA >20 ng/mL, and a Gleason score >8. Additional risk factors comprised elevated serum AST, LDH or ALP, decreased Hb, genetic markers like RB1 and PTEN loss, PIK3CB and MYC amplification, as well as numerous PC treatments either acting directly or indirectly through inducing liver injury. Further research regarding predictive factors, early detection strategies, and targeted therapies for PCLM are critical for improving patient outcomes.
Collapse
Affiliation(s)
- Audrey Shiner
- Division of Medical Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; (A.S.); (R.C.S.); (M.N.)
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Rubens Copia Sperandio
- Division of Medical Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; (A.S.); (R.C.S.); (M.N.)
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Mahdi Naimi
- Division of Medical Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; (A.S.); (R.C.S.); (M.N.)
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | - Urban Emmenegger
- Division of Medical Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada; (A.S.); (R.C.S.); (M.N.)
- Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| |
Collapse
|
5
|
Gilles N. Natural Peptide Toxins as an Option for Renewed Treatment of Type 2 Vasopressin Receptor-Related Diseases. BIOLOGY 2023; 12:544. [PMID: 37106745 PMCID: PMC10136000 DOI: 10.3390/biology12040544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023]
Abstract
The type 2 vasopressin receptor (V2R) is expressed in the kidneys, and it is the keystone of water homeostasis. Under the control of the antidiuretic hormone vasopressin, the V2R ensures vital functions, and any disturbance has dramatic consequences. Despite decades of research to develop drugs capable of activating or blocking V2R function to meet real medical needs, only one agonist and one antagonist are virtually used today. These two drugs cover only a small portion of patients' needs, leaving millions of patients without treatment. Natural peptide toxins known to act selectively and at low doses on their receptor target could offer new therapeutic options.
Collapse
Affiliation(s)
- Nicolas Gilles
- CEA, SIMoS, Département Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| |
Collapse
|
6
|
Chen Y, Liang Y, Cao L, Dong X, Sun D. Neuroendocrine differentiation: a risk fellow in colorectal cancer. World J Surg Oncol 2023; 21:89. [PMID: 36899368 PMCID: PMC9999536 DOI: 10.1186/s12957-023-02952-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 02/14/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Neuroendocrine differentiation (NED) is often found in colorectal cancer (CRC) and may have unique biological behavior, which has not been previously delineated. Here, we explore the relationship between CRC, NED, and clinicopathological factors. We also offer a preliminary explanation of the mechanism underlying the malignant biological behavior of NED in CRC. METHODS Between 2013 and 2015, 394 CRC patients who underwent radical operations were selected for analysis. The relationship between NED and clinicopathological factors was analyzed. To further clarify the pivotal role of NED in CRC, we performed bioinformatic analyses and identified genes that may be involved in NED, which were obtained from in silico data from The Cancer Genome Atlas (TCGA) database. Then, we conducted functional enrichment analyses and confirmed the critical pathways for intensive study. Moreover, we detected the expression of key proteins by immunohistochemistry and analyzed the correlation of their expression with NED. RESULTS The statistical analysis showed that CRC with NED was positively correlated with lymph node metastasis. Through bioinformatic analysis, we found that chromogranin A (CgA) was positively correlated with invasion and lymph node metastasis. ErbB2 and PIK3R1, which are key proteins in the PI3K-Akt signaling pathway, were closely related to NED. Furthermore, we determined that the PI3K-Akt signaling pathway likely plays a critical role in the NED of CRC. CONCLUSIONS CRC with NED is associated with lymph node metastasis. The PI3K-Akt signaling pathway, which is closely related to CRC, may be the mechanism promoting the malignant biological behavior of CRC with NED.
Collapse
Affiliation(s)
- Yue Chen
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Yu Liang
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Lianqun Cao
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Xinxin Dong
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Deyu Sun
- Department of Radiation Oncology Gastrointestinal and Urinary and Musculoskeletal Cancer, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China.
| |
Collapse
|
7
|
Heidman LM, Peinetti N, Copello VA, Burnstein KL. Exploiting Dependence of Castration-Resistant Prostate Cancer on the Arginine Vasopressin Signaling Axis by Repurposing Vaptans. Mol Cancer Res 2022; 20:1295-1304. [PMID: 35503085 PMCID: PMC9357166 DOI: 10.1158/1541-7786.mcr-21-0927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/08/2021] [Accepted: 04/28/2022] [Indexed: 02/07/2023]
Abstract
Men with advanced prostate cancer are treated by androgen deprivation therapy but the disease recurs as incurable castration-resistant prostate cancer (CRPC), requiring new treatment options. We previously demonstrated that the G protein-coupled receptor (GPCR) arginine vasopressin receptor type1A (AVPR1A) is expressed in CRPC and promotes castration-resistant growth in vitro and in vivo. AVPR1A is part of a family of GPCR's including arginine vasopressin receptor type 2 (AVPR2). Interrogation of prostate cancer patient sample data revealed that coexpression of AVPR1A and AVPR2 is highly correlated with disease progression. Stimulation of AVPR2 with a selective agonist desmopressin promoted CRPC cell proliferation through cAMP/protein kinase A signaling, consistent with AVPR2 coupling to the G protein subunit alpha s. In contrast, blocking AVPR2 with a selective FDA-approved antagonist, tolvaptan, reduced cell growth. In CRPC xenografts, antagonizing AVPR2, AVPR1A, or both significantly reduced CRPC tumor growth as well as decreased on-target markers of tumor burden. Combinatorial use of AVPR1A and AVPR2 antagonists promoted apoptosis synergistically in CRPC cells. Furthermore, we found that castration-resistant cells produced AVP, the endogenous ligand for arginine vasopressin receptors, and knockout of AVP in CRPC cells significantly reduced proliferation suggesting possible AVP autocrine signaling. These data indicate that the AVP/arginine vasopressin receptor signaling axis represents a promising and clinically actionable target for CRPC. IMPLICATIONS The arginine vasopressin signaling axis in CRPC provides a therapeutic window that is targetable through repurposing safe and effective AVPR1A and AVPR2 antagonists.
Collapse
Affiliation(s)
- Laine M. Heidman
- 1Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, and Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida
| | - Nahuel Peinetti
- 1Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, and Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida
| | - Valeria A. Copello
- 1Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, and Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida
| | - Kerry L. Burnstein
- 1Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, and Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida
| |
Collapse
|
8
|
Zhou H, He Q, Li C, Alsharafi BLM, Deng L, Long Z, Gan Y. Focus on the tumor microenvironment: A seedbed for neuroendocrine prostate cancer. Front Cell Dev Biol 2022; 10:955669. [PMID: 35938167 PMCID: PMC9355504 DOI: 10.3389/fcell.2022.955669] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
The tumor microenvironment (TME) is a microecology consisting of tumor and mesenchymal cells and extracellular matrices. The TME plays important regulatory roles in tumor proliferation, invasion, metastasis, and differentiation. Neuroendocrine differentiation (NED) is a mechanism by which castration resistance develops in advanced prostate cancer (PCa). NED is induced after androgen deprivation therapy and neuroendocrine prostate cancer (NEPC) is established finally. NEPC has poor prognosis and short overall survival and is a major cause of death in patients with PCa. Both the cellular and non-cellular components of the TME regulate and induce NEPC formation through various pathways. Insights into the roles of the TME in NEPC evolution, growth, and progression have increased over the past few years. These novel insights will help refine the NEPC formation model and lay the foundation for the discovery of new NEPC therapies targeting the TME.
Collapse
Affiliation(s)
- Hengfeng Zhou
- Andrology Center, Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Qiangrong He
- Andrology Center, Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Chao Li
- Andrology Center, Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, China
| | | | - Liang Deng
- Andrology Center, Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhi Long
- Andrology Center, Department of Urology, the Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Zhi Long, ; Yu Gan,
| | - Yu Gan
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Zhi Long, ; Yu Gan,
| |
Collapse
|
9
|
Centrone M, D’Agostino M, Ranieri M, Mola MG, Faviana P, Lippolis PV, Silvestris DA, Venneri M, Di Mise A, Valenti G, Tamma G. dDAVP Downregulates the AQP3-Mediated Glycerol Transport via V1aR in Human Colon HCT8 Cells. Front Cell Dev Biol 2022; 10:919438. [PMID: 35874817 PMCID: PMC9304624 DOI: 10.3389/fcell.2022.919438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/15/2022] [Indexed: 11/28/2022] Open
Abstract
Vasopressin (AVP) plays a key function in controlling body water and salt balance through the activation of the vasopressin receptors V1aR and V2R. Abnormal secretion of AVP can cause the syndrome of inappropriate antidiuresis that leads to hyponatremia, which is an electrolyte disorder often observed in the elderly hospitalized and oncologic patients. Beyond kidneys, the colonic epithelium modulates water and salt homeostasis. The water channel AQP3, expressed in villus epithelial cells is implicated in water absorption across human colonic surface cells. Here, the action of dDAVP, a stable vasopressin analog, was evaluated on the AQP3 expression and function using human colon HCT8 cells as an experimental model. Confocal and Western Blotting analysis revealed that HCT8 cells express both V1aR and V2R. Long-term (72 h) treatment with dDAVP reduced glycerol uptake and cell viability. These effects were prevented by SR49059, a synthetic antagonist of V1aR, but not by tolvaptan, a specific V2R antagonist. Of note, the SR49059 action was impaired by DFP00173, a selective inhibitor of AQP3. Interestingly, compared to the normal colonic mucosa, in the colon of patients with adenocarcinoma, the expression of V1aR was significantly decreased. These findings were confirmed by gene expression analysis with RNA-Seq data. Overall, data suggest that dDAVP, through the V1aR dependent pathway, reduces AQP3 mediated glycerol uptake, a process that is reversed in adenocarcinoma, suggesting that the AVP-dependent AQP3 pathway may represent a novel target in colon diseases associated with abnormal cell growth.
Collapse
Affiliation(s)
- Mariangela Centrone
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Mariagrazia D’Agostino
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Marianna Ranieri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Maria Grazia Mola
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Pinuccia Faviana
- Department of Surgical, Medical, Molecular Pathology, and Critical Area, University of Pisa, Pisa, Italy
| | | | | | - Maria Venneri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Annarita Di Mise
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Giovanna Valenti
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Grazia Tamma
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
- *Correspondence: Grazia Tamma,
| |
Collapse
|
10
|
Glavaš M, Gitlin-Domagalska A, Dębowski D, Ptaszyńska N, Łęgowska A, Rolka K. Vasopressin and Its Analogues: From Natural Hormones to Multitasking Peptides. Int J Mol Sci 2022; 23:3068. [PMID: 35328489 PMCID: PMC8955888 DOI: 10.3390/ijms23063068] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/24/2022] [Accepted: 03/10/2022] [Indexed: 11/17/2022] Open
Abstract
Human neurohormone vasopressin (AVP) is synthesized in overlapping regions in the hypothalamus. It is mainly known for its vasoconstricting abilities, and it is responsible for the regulation of plasma osmolality by maintaining fluid homeostasis. Over years, many attempts have been made to modify this hormone and find AVP analogues with different pharmacological profiles that could overcome its limitations. Non-peptide AVP analogues with low molecular weight presented good affinity to AVP receptors. Natural peptide counterparts, found in animals, are successfully applied as therapeutics; for instance, lypressin used in treatment of diabetes insipidus. Synthetic peptide analogues compensate for the shortcomings of AVP. Desmopressin is more resistant to proteolysis and presents mainly antidiuretic effects, while terlipressin is a long-acting AVP analogue and a drug recommended in the treatment of varicose bleeding in patients with liver cirrhosis. Recently published results on diverse applications of AVP analogues in medicinal practice, including potential lypressin, terlipressin and ornipressin in the treatment of SARS-CoV-2, are discussed.
Collapse
Affiliation(s)
| | - Agata Gitlin-Domagalska
- Department of Molecular Biochemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdansk, Poland; (M.G.); (D.D.); (N.P.); (A.Ł.); (K.R.)
| | | | | | | | | |
Collapse
|
11
|
Khegay II. Vasopressin Receptors in Blood Vessels and Proliferation of Endotheliocytes. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1068162021040129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
12
|
Sobol NT, Solernó LM, Beltrán B, Vásquez L, Ripoll GV, Garona J, Alonso DF. Anticancer activity of repurposed hemostatic agent desmopressin on AVPR2-expressing human osteosarcoma. Exp Ther Med 2021; 21:566. [PMID: 33850538 PMCID: PMC8027742 DOI: 10.3892/etm.2021.9998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/03/2020] [Indexed: 01/15/2023] Open
Abstract
Osteosarcoma is the most prevalent primary bone malignancy. Due to its high aggressiveness, novel treatment strategies are urgently required to improve survival of patients with osteosarcoma, especially those with advanced disease. Desmopressin (dDAVP) is a widely used blood-saving agent that has been repurposed as an adjuvant agent for cancer management due to its antiangiogenic and antimetastatic properties. dDAVP acts as a selective agonist of the vasopressin membrane receptor type 2 (AVPR2) present in the microvascular endothelium and in some cancer cells, including breast, lung, colorectal and neuroendocrine tumor cells. Despite the fact that dDAVP has demonstrated its antitumor efficacy in a wide variety of tumor types, exploration of its potential anti-osteosarcoma activity has, to the best of our knowledge, not yet been conducted. Therefore, the aim of the present study was to evaluate the preclinical antitumor activity of dDAVP in osteosarcoma. Human MG-63 and U-2 OS osteosarcoma cell lines were used to assess in vitro and in vivo therapeutic effects of dDAVP. At low micromolar concentrations, dDAVP reduced AVPR2-expressing MG-63 cell growth in a concentration-dependent manner. In contrast, dDAVP exhibited no direct cytostatic effect on AVPR2-negative U-2 OS cells. As it would be expected for canonical AVPR2-activation, dDAVP raised intracellular cAMP levels in osteosarcoma cells, and coincubation with phosphodiesterase-inhibitor rolipram indicated synergistic antiproliferative activity. Cytostatic effects were associated with increased apoptosis, reduced mitotic index and impairment of osteosarcoma cell chemotaxis, as evaluated by TUNEL-labeling, mitotic body count in DAPI-stained cultures and Transwell migration assays. Intravenous administration of dDAVP (12 µg/kg; three times per week) to athymic mice bearing rapidly growing MG-63 xenografts, was indicated to be capable of reducing tumor progression after a 4-week treatment. No major alterations in animal weight, biochemical or hematological parameters were associated with dDAVP treatment, confirming its good tolerability and safety. Finally, AVPR2 expression was detected by immunohistochemistry in 66% of all evaluated chemotherapy-naive human conventional osteosarcoma biopsies. Taking these findings into account, repurposed agent dDAVP may represent an interesting therapeutic tool for the management of osteosarcoma. Further preclinical exploration of dDAVP activity on orthotopic or metastatic osteosarcoma models are required.
Collapse
Affiliation(s)
- Natasha Tatiana Sobol
- Center of Molecular and Translational Oncology, National University of Quilmes, Bernal B1876BXD, Buenos Aires, Argentina
| | - Luisina María Solernó
- Center of Molecular and Translational Oncology, National University of Quilmes, Bernal B1876BXD, Buenos Aires, Argentina
| | - Brady Beltrán
- Precision Medicine Research Center, School of Medicine, University of San Martín de Porres, Lima 15024, Perú
| | - Liliana Vásquez
- Precision Medicine Research Center, School of Medicine, University of San Martín de Porres, Lima 15024, Perú
| | - Giselle Vanina Ripoll
- Center of Molecular and Translational Oncology, National University of Quilmes, Bernal B1876BXD, Buenos Aires, Argentina
- National Council of Scientific and Technical Research (CONICET), Buenos Aires C1425FQB, Argentina
| | - Juan Garona
- Center of Molecular and Translational Oncology, National University of Quilmes, Bernal B1876BXD, Buenos Aires, Argentina
- National Council of Scientific and Technical Research (CONICET), Buenos Aires C1425FQB, Argentina
| | - Daniel Fernando Alonso
- Center of Molecular and Translational Oncology, National University of Quilmes, Bernal B1876BXD, Buenos Aires, Argentina
- National Council of Scientific and Technical Research (CONICET), Buenos Aires C1425FQB, Argentina
| |
Collapse
|
13
|
Droctové L, Lancien M, Tran VL, Susset M, Jego B, Theodoro F, Kessler P, Mourier G, Robin P, Diarra SS, Palea S, Flahault A, Chorfa A, Corbani M, Llorens-Cortes C, Mouillac B, Mendre C, Pruvost A, Servent D, Truillet C, Gilles N. A snake toxin as a theranostic agent for the type 2 vasopressin receptor. Am J Cancer Res 2020; 10:11580-11594. [PMID: 33052234 PMCID: PMC7545998 DOI: 10.7150/thno.47485] [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: 04/27/2020] [Accepted: 07/04/2020] [Indexed: 01/01/2023] Open
Abstract
Rationale: MQ1, a snake toxin which targets with high nanomolar affinity and absolute selectivity for the type 2 vasopressin receptor (V2R), is a drug candidate for renal diseases and a molecular probe for imaging cells or organs expressing V2R. Methods: MQ1's pharmacological properties were characterized and applied to a rat model of hyponatremia. Its PK/PD parameters were determined as well as its therapeutic index. Fluorescently and radioactively labeled MQ1 were chemically synthesized and associated with moderate loss of affinity. MQ1's dynamic biodistribution was monitored by positron emission tomography. Confocal imaging was used to observe the labeling of three cancer cell lines. Results: The inverse agonist property of MQ1 very efficiently prevented dDAVP-induced hyponatremia in rats with low nanomolar/kg doses and with a very large therapeutic index. PK (plasma MQ1 concentrations) and PD (diuresis) exhibited a parallel biphasic decrease. The dynamic biodistribution showed that MQ1 targets the kidneys and then exhibits a blood and kidney biphasic decrease. Whatever the approach used, we found a T1/2α between 0.9 and 3.8 h and a T1/2β between 25 and 46 h and demonstrated that the kidneys were able to retain MQ1. Finally, the presence of functional V2R expressed at the membrane of cancer cells was, for the first time, demonstrated with a specific fluorescent ligand. Conclusion: As the most selective V2 binder, MQ1 is a new promising drug for aquaresis-related diseases and a molecular probe to visualize in vitro and in vivo V2R expressed physiologically or under pathological conditions.
Collapse
|
14
|
Ding H, Luo Y, Hu K, Huang H, Liu P, Xiong M, Zhu L, Yi J, Xu Y. Hypoxia in utero increases the risk of pulmonary hypertension in rat offspring and is associated with vasopressin type‑2 receptor upregulation. Mol Med Rep 2020; 22:4173-4182. [PMID: 33000260 PMCID: PMC7533485 DOI: 10.3892/mmr.2020.11533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 07/28/2020] [Indexed: 12/04/2022] Open
Abstract
Pulmonary hypertension (PH) in newborns and adults is a disease that can lead to right heart failure and result in a shorter lifespan. PH was induced by maintaining pregnant rats in a hypoxic chamber for 4 h twice a day, from days 7–21 of pregnancy. Hypoxia was confirmed by a decrease in the partial pressure of oxygen (PaO2) and the oxygen saturation (SaO2) of arterial blood in the aorta. The body weight of newborns from hypoxic rats was ~20% decreased compared with the control newborns of normoxic rats. The vascular wall thickness/vascular diameter values of hypoxia treated pubs were increased compared with that of control newborns 7 days after birth; however, it decreased to similar levels than in the control group after 3 months, and then further decreased to significantly lower levels than in the control group at 6 months after birth. At birth, the lung tissues of newborns from hypoxic rats exhibited an increase in the levels of mRNA and proteins associated with PH such as HIF-1α, HIF-2α, V2R, TGF-β, TNF-α, Ang-2 and α-SMA. At 3 and 6 months after birth, the levels of both V2R mRNA and protein in offspring from hypoxic rats were at least 2-fold higher, whereas the expression of all other factors decreased compared with the control offspring. By contrast, HIF-2α and Ang-2 expression levels were significantly increased in the 6-month-old control offspring from normoxic rats. V2R overexpression in pups induced by hypoxia in maternal rats was sustained until their adulthood. V2R may be a marker for detecting PH.
Collapse
Affiliation(s)
- Hao Ding
- Division of Respiratory Disease, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Yuchuan Luo
- Division of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Ke Hu
- Division of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Huaying Huang
- Division of Respiratory Disease, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Pei Liu
- Division of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Mengqing Xiong
- Division of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Li Zhu
- Division of Respiratory Disease, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Jing Yi
- Division of Respiratory Disease, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| | - Ying Xu
- Division of Respiratory Disease, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212002, P.R. China
| |
Collapse
|
15
|
Sinha S, Dwivedi N, Tao S, Jamadar A, Kakade VR, Neil MO, Weiss RH, Enders J, Calvet JP, Thomas SM, Rao R. Targeting the vasopressin type-2 receptor for renal cell carcinoma therapy. Oncogene 2020; 39:1231-1245. [PMID: 31616061 PMCID: PMC7007354 DOI: 10.1038/s41388-019-1059-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023]
Abstract
Arginine vasopressin (AVP) and its type-2 receptor (V2R) play an essential role in the regulation of salt and water homeostasis by the kidneys. V2R activation also stimulates proliferation of renal cell carcinoma (RCC) cell lines in vitro. The current studies investigated V2R expression and activity in human RCC tumors, and its role in RCC tumor growth. Examination of the cancer genome atlas (TCGA) database, and analysis of human RCC tumor tissue microarrays, cDNA arrays and tumor biopsy samples demonstrated V2R expression and activity in clear cell RCC (ccRCC). In vitro, V2R antagonists OPC31260 and Tolvaptan, or V2R gene silencing reduced wound closure and cell viability of 786-O and Caki-1 human ccRCC cell lines. Similarly in mouse xenograft models, Tolvaptan and OPC31260 decreased RCC tumor growth by reducing cell proliferation and angiogenesis, while increasing apoptosis. In contrast, the V2R agonist dDAVP significantly increased tumor growth. High intracellular cAMP levels and ERK1/2 activation were observed in human ccRCC tumors. In mouse tumors and Caki-1 cells, V2R agonists reduced cAMP and ERK1/2 activation, while dDAVP treatment had the reverse effect. V2R gene silencing in Caki-1 cells also reduced cAMP and ERK1/2 activation. These results provide novel evidence for a pathogenic role of V2R signaling in ccRCC, and suggest that inhibitors of the AVP-V2R pathway, including the FDA-approved drug Tolvaptan, could be utilized as novel ccRCC therapeutics.
Collapse
Affiliation(s)
- Sonali Sinha
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Nidhi Dwivedi
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Shixin Tao
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Abeda Jamadar
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Vijayakumar R Kakade
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Maura O' Neil
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Robert H Weiss
- Division of Nephrology and Comprehensive Cancer Center, University of California, Davis, CA, USA
- Medical Service, VA Northern California Health Care System, Sacramento, CA, USA
| | - Jonathan Enders
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, USA
| | - James P Calvet
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Sufi M Thomas
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Reena Rao
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS, USA.
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA.
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA.
| |
Collapse
|
16
|
Ripoll GV, Pifano M, Garona J, Alonso DF. Commentary: Arginine vasopressin receptor 1a is a therapeutic target for castration-resistant prostate cancer. Front Oncol 2020; 9:1490. [PMID: 31998646 PMCID: PMC6970191 DOI: 10.3389/fonc.2019.01490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/11/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Giselle V Ripoll
- Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Bernal, Argentina.,Scientific Investigator Career of National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Marina Pifano
- Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Bernal, Argentina
| | - Juan Garona
- Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Bernal, Argentina.,Scientific Investigator Career of National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Daniel F Alonso
- Laboratory of Molecular Oncology, Department of Science and Technology, National University of Quilmes, Bernal, Argentina.,Scientific Investigator Career of National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| |
Collapse
|
17
|
Garona J, Pifano M, Ripoll G, Alonso DF. Development and therapeutic potential of vasopressin synthetic analog [V 4Q 5]dDAVP as a novel anticancer agent. VITAMINS AND HORMONES 2020; 113:259-289. [PMID: 32138951 DOI: 10.1016/bs.vh.2019.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Since its discovery, arginine vasopressin (AVP) was subjected to several modifications with the aim of obtaining novel derivatives with increased potency and selectivity for biomedical use. Desmopressin (dDAVP) is a first generation synthetic analog of AVP with hemostatic and antimetastatic activity. dDAVP acts as a selective agonist of the arginine vasopressin type 2 receptor (AVPR2) present in microvascular endothelium and cancer cells. Considering its selective effects on AVPR2-expressing malignant and vascular tissue, and interesting antitumor profile, dDAVP was used as a lead compound for the development of novel peptide analogs with enhanced anticancer efficacy. After conducting different structure-activity relationship studies to determine key aminoacidic positions for its antitumor activity against AVPR2-expressing malignant cells, dDAVP was rationally modified and a wide panel of synthetic analogs with different sequence and structural modifications was assessed. As a result of this structure-based drug derivatization novel AVP analog [V4Q5]dDAVP (1-deamino-4-valine-5-glutamine-8-d-arginine vasopressin) was selected as the most active candidate and further developed. [V4Q5]dDAVP was evaluated in highly aggressive and metastatic cancer preclinical models deploying enhanced cytostatic, antimetastatic and angiostatic effects in comparison to parental peptide dDAVP. In addition, novel compound demonstrated good tolerability as evaluated in several toxicological studies, and cooperative therapeutic effects after combination with standard-of-care chemotherapy. In summary, due to its ability to inhibit growth and tumor-associated angiogenesis, as well as impairing progression of metastatic disease, AVP analogs such as novel [V4Q5]dDAVP are promising compounds for further development as coadjuvant agents for the management of advance or recurrent cancers.
Collapse
Affiliation(s)
- Juan Garona
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina.
| | - Marina Pifano
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Giselle Ripoll
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Daniel F Alonso
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| |
Collapse
|
18
|
Boutsikou E, Porpodis K, Chatzipavlidou V, Hardavella G, Gerasimou G, Domvri K, Papadopoulos N, Avramidou V, Spyratos D, Kontakiotis T, Zarogoulidis K. Predictive Value of 99MTC-hynic-toc Scintigraphy in Lung Neuroendocrine Tumor Diagnosis. Technol Cancer Res Treat 2019; 18:1533033819842586. [PMID: 31079574 PMCID: PMC6535698 DOI: 10.1177/1533033819842586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: Νeuroendocrine tumors of the lungs are rare arising in the thymus and gastro-entero-pancreatic tract and belonging to foregut of neuroendocrine tumors. The aim of the present prospective study was to estimate the potential impact of single-photon emission computed tomography somatostatin receptor scintigraphy using 99mTc-Tektrotyd on diagnosis, treatment response, and prognosis in patients with neuroendocrine tumors of the lungs. Methods: Thirty-six patients with neuroendocrine tumors of the lungs were evaluated by using 99mTc-HYNIC-TOC scintigraphy. The scintigraphic results were compared to liver tissue uptake (Krenning score). Likewise, the functional imaging results were compared with biochemical indices including chromogranin A, neuroendocrine-specific enolase, and insulin-like growth factor 1 at the time of diagnosis (baseline) and disease progression. Results: The number of somatostatin receptors, expressed with Krenning score, did not show any correlation with the survival of patients both at baseline (P = .08) and at disease progression (P = .24), and scintigraphy results did not relate significantly to progression-free survival. Comparing the results of 99mTc-HYNIC-TOC scintigraphy according to the response of patients in the initial treatment, a statistically significant negative correlation was observed both in the first and in the second scintigraphy with patients’ response (P = .001 and P < .001, respectively). The concentrations of biochemical markers were in accordance with scintigraphy results in the diagnosis. Conclusion: This study indicates that 99mTc-HYNIC-TOC scintigraphy appears to be a reliable, noninvasive technique for detection of primary neuroendocrine tumors and their locoregional or distant metastases, although it cannot be used as a neuroendocrine tumors of the lungs predictive technique.
Collapse
Affiliation(s)
- Efimia Boutsikou
- 1 Pulmonary Department, Oncology Unit, Aristotle University of Thessaloniki, G. Papanikolaou Hospital, Thessaloniki, Macedonia, Greece
| | - Konstantinos Porpodis
- 1 Pulmonary Department, Oncology Unit, Aristotle University of Thessaloniki, G. Papanikolaou Hospital, Thessaloniki, Macedonia, Greece
| | - Vasiliki Chatzipavlidou
- 2 Nuclear Medicine Department, Anticancer Hospital Theagenio, Thessaloniki, Macedonia, Greece
| | - Georgia Hardavella
- 3 Department of Respiratory Medicine, King's College Hospital, London, United Kingdom
| | - George Gerasimou
- 4 2nd Clinical Laboratory of Nuclear Medicine, AHEPA University Hospital, Thessaloniki, Macedonia, Greece
| | - Kalliopi Domvri
- 1 Pulmonary Department, Oncology Unit, Aristotle University of Thessaloniki, G. Papanikolaou Hospital, Thessaloniki, Macedonia, Greece
| | - Nikitas Papadopoulos
- 2 Nuclear Medicine Department, Anticancer Hospital Theagenio, Thessaloniki, Macedonia, Greece
| | - Vasiliki Avramidou
- 5 3rd Paediatric Department, Hippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Dionisis Spyratos
- 1 Pulmonary Department, Oncology Unit, Aristotle University of Thessaloniki, G. Papanikolaou Hospital, Thessaloniki, Macedonia, Greece
| | - Theodoros Kontakiotis
- 1 Pulmonary Department, Oncology Unit, Aristotle University of Thessaloniki, G. Papanikolaou Hospital, Thessaloniki, Macedonia, Greece
| | - Konstantinos Zarogoulidis
- 1 Pulmonary Department, Oncology Unit, Aristotle University of Thessaloniki, G. Papanikolaou Hospital, Thessaloniki, Macedonia, Greece
| |
Collapse
|
19
|
Garona J, Sobol NT, Solernó LM, Alonso DF. Potential Use of Desmopressin During Hepatic Resection for Colorectal Liver Metastases. J Surg Res 2019; 237:1-2. [PMID: 30694785 DOI: 10.1016/j.jss.2018.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 10/23/2018] [Accepted: 12/10/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Juan Garona
- Laboratory of Molecular Oncology, National University of Quilmes, Bernal, Buenos Aires, Argentina; National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina
| | - Natasha T Sobol
- Laboratory of Molecular Oncology, National University of Quilmes, Bernal, Buenos Aires, Argentina
| | - Luisina M Solernó
- Laboratory of Molecular Oncology, National University of Quilmes, Bernal, Buenos Aires, Argentina
| | - Daniel F Alonso
- Laboratory of Molecular Oncology, National University of Quilmes, Bernal, Buenos Aires, Argentina; National Council of Scientific and Technical Research (CONICET), Buenos Aires, Argentina.
| |
Collapse
|
20
|
Chevalier MT, Garona J, Sobol NT, Farina HG, Alonso DF, Álvarez VA. In vitro and in vivo evaluation of desmopressin-loaded poly(D,L-lactic-co-glycolic acid) nanoparticles for its potential use in cancer treatment. Nanomedicine (Lond) 2018; 13:2835-2849. [PMID: 30430901 DOI: 10.2217/nnm-2018-0065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To develop and characterize the antitumor activity of poly(D,L-lactic-co-glycolic acid) nanoparticles loaded with hemostatic and anticancer drug desmopressin (dDAVP). MATERIALS & METHODS After full physicochemical characterization, anticancer activity of dDAVP-loaded poly(D,L-lactic-co-glycolic acid) nanoparticles (NPdDAVP) was evaluated in vitro and in vivo on a highly aggressive breast cancer model. RESULTS After efficiently loading desmopressin in poly(D,L-lactic-co-glycolic acid) matrix, NPdDAVP exhibited suitable physicochemical characteristics for biomedical applications. NPdDAVP displayed a potent cytostatic effect in vitro, inhibiting tumor cell proliferation and colony forming ability. Moreover, intravenous treatment using nanoparticulated-dDAVP inhibited tumor progression and prolonged survival in animals bearing rapidly-growing mammary tumors. CONCLUSION Within the framework of promising dDAVP repurposing studies, these findings support further preclinical development of the NPdDAVP for the management of highly aggressive cancer.
Collapse
Affiliation(s)
- Merari T Chevalier
- Grupo de Materiales Compuestos Termoplásticos, Instituto de Investigaciones de Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Colón 10890 (7600), Mar del Plata, Argentina
| | - Juan Garona
- Laboratorio de Oncología Molecular (LOM), Departamento de Ciencia y Tecnología (DCyT), Universidad Nacional de Quilmes (UNQ), Roque Saenz Peña 352 (B1876BXD), Buenos Aires, Argentina
| | - Natasha T Sobol
- Laboratorio de Oncología Molecular (LOM), Departamento de Ciencia y Tecnología (DCyT), Universidad Nacional de Quilmes (UNQ), Roque Saenz Peña 352 (B1876BXD), Buenos Aires, Argentina
| | - Hernan G Farina
- Laboratorio de Oncología Molecular (LOM), Departamento de Ciencia y Tecnología (DCyT), Universidad Nacional de Quilmes (UNQ), Roque Saenz Peña 352 (B1876BXD), Buenos Aires, Argentina
| | - Daniel F Alonso
- Laboratorio de Oncología Molecular (LOM), Departamento de Ciencia y Tecnología (DCyT), Universidad Nacional de Quilmes (UNQ), Roque Saenz Peña 352 (B1876BXD), Buenos Aires, Argentina
| | - Vera A Álvarez
- Grupo de Materiales Compuestos Termoplásticos, Instituto de Investigaciones de Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Colón 10890 (7600), Mar del Plata, Argentina
| |
Collapse
|
21
|
Garona J, Sobol NT, Pifano M, Segatori VI, Gomez DE, Ripoll GV, Alonso DF. Preclinical Efficacy of [V4 Q5 ]dDAVP, a Second Generation Vasopressin Analog, on Metastatic Spread and Tumor-Associated Angiogenesis in Colorectal Cancer. Cancer Res Treat 2018; 51:438-450. [PMID: 29879760 PMCID: PMC6473275 DOI: 10.4143/crt.2018.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 05/30/2018] [Indexed: 12/29/2022] Open
Abstract
Purpose Control of metastatic spread of colorectal cancer (CRC) remains as a major therapeutic challenge. [V4 Q5 ]dDAVP is a vasopressin peptide analog with previously reported anticancer activity against carcinoma tumors. By acting as a selective agonist of arginine vasopressin type 2 membrane receptor (AVPR2) present in endothelial and tumor cells, [V4Q5]dDAVP is able to impair tumor aggressiveness and distant spread. Our aim was to evaluate the potential therapeutic benefits of [V4Q5]dDAVP on highly aggressive CRC disease using experimental models with translational relevance. Materials and Methods Murine CT-26 and human Colo-205 AVPR2-expressing CRC cell lines were used to test the preclinical efficacy of [V4Q5]dDAVP, both in vitro and in vivo. Results In syngeneic mice surgically implanted with CT-26 cells in the spleen, sustained intravenous treatment with [V4Q5]dDAVP (0.3 µg/kg) dramatically impaired metastatic progression to liver without overt signs of toxicity, and also reduced experimental lung colonization. The compound inhibited in vivo angiogenesis driven by Colo-205 cells in athymic mice, as well as in vitro endothelial cell migration and capillary tube formation. [V4Q5]dDAVP exerted AVPR2-dependent cytostatic activity in vitro (IC50 1.08 µM) and addition to 5-fluorouracil resulted in synergistic antiproliferative effects both in CT-26 and Colo-205 cells. Conclusion The present preclinical study establishes for the first time the efficacy of [V4Q5]dDAVP on CRC. These encouraging results suggest that the novel second generation vasopressin analog could be used for the management of aggressive CRC as an adjuvant agent during surgery or to complement standard chemotherapy, limiting tumor angiogenesis and metastasis and thus protecting the patient from CRC recurrence.
Collapse
Affiliation(s)
- Juan Garona
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Natasha T Sobol
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Marina Pifano
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Valeria I Segatori
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Daniel E Gomez
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Giselle V Ripoll
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| | - Daniel F Alonso
- Laboratory of Molecular Oncology, Science and Technology Department, National University of Quilmes, Buenos Aires, Argentina
| |
Collapse
|
22
|
Search of vasopressin analogs with antiproliferative activity on small-cell lung cancer: drug design based on two different approaches. Future Med Chem 2018; 10:879-894. [PMID: 29589487 DOI: 10.4155/fmc-2017-0178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
AIM Development of compounds with therapeutic application requires the interaction of different disciplines. Several tumors express vasopressin (AVP; arginine vasopressin) receptors with contrasting effects depending on receptor subtype. Desmopressin (dDAVP) is an AVP-selective analog with antiproliferative properties. In this work, an evolutionary approach and a rational strategy were applied in order to design novel AVP analogs. RESULTS We designed two novel analogs; dDInotocin (dDINT, insect analog), and [V4Q5]dDAVP, and demonstrated the importance of the dDAVP conformational loop for its antiproliferative activity. [V4Q5] dDAVP showed major cytostatic effect on lung cancer cells than dDAVP and its cytostatic effect was abolished by V2R blockade. CONCLUSION Combination of these strategies could provide the basis for future studies for the development of improved compounds with potential therapeutic applications.
Collapse
|
23
|
Alshaikh OM, Yoon JY, Chan BA, Krzyzanowska MK, Butany J, Asa SL, Ezzat S. Pancreatic Neuroendocrine Tumor Producing Insulin and Vasopressin. Endocr Pathol 2018; 29:15-20. [PMID: 28718084 DOI: 10.1007/s12022-017-9492-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The objective of the study is to report a rare case of pancreatic neuroendocrine tumor (pNET) producing insulin and vasopressin. We describe the clinical presentation and management of a metastatic pNET with refractory hypoglycemia and progressive severe hyponatremia. A 52-year-old patient had abdominal pain leading to the diagnosis of a tumor that was initially presumed to be splenic in origin. Investigations ultimately identified a pancreatic mass that on biopsy proved to be a pNET. Eventually, he developed extensive liver metastases, and with tumor progression, he manifested hypoglycemia and severe hyponatremia. He was managed with multiple therapies including somatostatin analogue, peptide-receptor-radionuclide-therapy (PRRT), diazoxide, and everolimus; none of these therapeutic modalities was successful in controlling functional and structural progression of the tumor. Ultimately, the pNET proved fatal and autopsy confirmed widely metastatic disease that stained strongly and diffusely for vasopressin, a feature not seen in the previous liver biopsy. This case illustrates the challenges of diagnosis and management of aggressive insulin-producing pNETs and highlights the potential concomitant ectopic production of vasopressin leading to refractory hyponatremia.
Collapse
Affiliation(s)
- Omalkhaire M Alshaikh
- Department of Internal Medicine, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
- Department of Medicine, Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Room 7-327, Toronto, ON, M5G 2M9, Canada
| | - Ju-Yoon Yoon
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Bryan A Chan
- Department of Medicine, Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Room 7-327, Toronto, ON, M5G 2M9, Canada
| | - Monika K Krzyzanowska
- Department of Medicine, Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Room 7-327, Toronto, ON, M5G 2M9, Canada
| | - Jagdish Butany
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Sylvia L Asa
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Shereen Ezzat
- Department of Medicine, Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Room 7-327, Toronto, ON, M5G 2M9, Canada.
| |
Collapse
|
24
|
Khan M, Huang T, Lin CY, Wu J, Fan BM, Bian ZX. Exploiting cancer's phenotypic guise against itself: targeting ectopically expressed peptide G-protein coupled receptors for lung cancer therapy. Oncotarget 2017; 8:104615-104637. [PMID: 29262666 PMCID: PMC5732832 DOI: 10.18632/oncotarget.18403] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/23/2017] [Indexed: 02/07/2023] Open
Abstract
Lung cancer, claiming millions of lives annually, has the highest mortality rate worldwide. This advocates the development of novel cancer therapies that are highly toxic for cancer cells but negligibly toxic for healthy cells. One of the effective treatments is targeting overexpressed surface receptors of cancer cells with receptor-specific drugs. The receptors-in-focus in the current review are the G-protein coupled receptors (GPCRs), which are often overexpressed in various types of tumors. The peptide subfamily of GPCRs is the pivot of the current article owing to the high affinity and specificity to and of their cognate peptide ligands, and the proven efficacy of peptide-based therapeutics. The article summarizes various ectopically expressed peptide GPCRs in lung cancer, namely, Cholecystokinin-B/Gastrin receptor, the Bombesin receptor family, Bradykinin B1 and B2 receptors, Arginine vasopressin receptors 1a, 1b and 2, and the Somatostatin receptor type 2. The autocrine growth and pro-proliferative pathways they mediate, and the distinct tumor-inhibitory effects of somatostatin receptors are then discussed. The next section covers how these pathways may be influenced or 'corrected' through therapeutics (involving agonists and antagonists) targeting the overexpressed peptide GPCRs. The review proceeds on to Nano-scaled delivery platforms, which enclose chemotherapeutic agents and are decorated with peptide ligands on their external surface, as an effective means of targeting cancer cells. We conclude that targeting these overexpressed peptide GPCRs is potentially evolving as a highly promising form of lung cancer therapy.
Collapse
Affiliation(s)
- Mahjabin Khan
- Laboratory of Brain-Gut Research, School of Chinese Medicine, Hong Kong Baptist University, HKSAR, Kowloon Tong, P.R. China
| | - Tao Huang
- Laboratory of Brain-Gut Research, School of Chinese Medicine, Hong Kong Baptist University, HKSAR, Kowloon Tong, P.R. China
| | - Cheng-Yuan Lin
- Laboratory of Brain-Gut Research, School of Chinese Medicine, Hong Kong Baptist University, HKSAR, Kowloon Tong, P.R. China
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine, Yunnan Minzu University, Kunming, P.R. China
| | - Jiang Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, P. R. China
| | - Bao-Min Fan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine, Yunnan Minzu University, Kunming, P.R. China
| | - Zhao-Xiang Bian
- Laboratory of Brain-Gut Research, School of Chinese Medicine, Hong Kong Baptist University, HKSAR, Kowloon Tong, P.R. China
| |
Collapse
|
25
|
Hyponatremia and V2 vasopressin receptor upregulation: a result of HSP90 inhibition. Cancer Chemother Pharmacol 2017; 80:673-684. [PMID: 28779264 PMCID: PMC5608778 DOI: 10.1007/s00280-017-3390-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/11/2017] [Indexed: 01/16/2023]
Abstract
Purpose
Small-molecule inhibitors of heat-shock protein 90 (HSP90) have been under development as chemotherapeutic agents. The adverse events reported from early clinical trials included hyponatremia. Given the limited number of patients enrolled, the number of hyponatremia incidents was remarkable and repeatedly, the event was judged as severe. Inappropriate V2 vasopressin receptor stimulation is an established cause of hyponatremia. We explored the hypothesis that HSP90 inhibition produces hypersensitivity to vasopressin by upregulating V2-receptors. Methods Experiments were carried out in cell culture using HEK293 cells with heterologous expression of the human V2-receptor and HELA cells with an endogenous V2-receptor complement. We tested the effect of HSP90 inhibition by three structurally unrelated compounds (alvespimycin, luminespib, radicicol) and asserted its specificity in cells depleted of cytosolic HSP90 (by RNA interference). Assays encompassed surface V2-receptor density and vasopressin-stimulated formation of cyclic AMP (cAMP). Results The results demonstrate a twofold increase in cell-surface receptor density following pre-incubation with each of the HSP90 inhibitors. The effect had a concentration-dependence consistent with the individual potencies to inhibit HSP90. Similarly, depletion of cytosolic HSP90 increased surface-receptor density and at the same time, reduced the inhibitor effect. Upregulated V2-receptors were fully functional; hence, in culture treated with an HSP90 inhibitor, addition of vasopressin resulted in higher levels of cAMP than in controls. Conclusion Since formation of cAMP is the first signalling step in raising water permeability of the collecting duct epithelia, we suggest that V2-receptor upregulation generates hypersensitivity to vasopressin linking HSP90 inhibition to the development of hyponatremia.
Collapse
|
26
|
Mucke HA. Drug Repurposing Patent Applications October–December 2016. Assay Drug Dev Technol 2017; 15:120-126. [DOI: 10.1089/adt.2017.29056.pq4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
|