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Antoniraj MG, Jeeva Kumari HL, Shanmugarathinam A, Kandasamy R. pH-responsive chitosan copolymer synthesized via click chemistry for design of polymeric nanoparticles for targeted drug delivery. Carbohydr Res 2024; 542:109200. [PMID: 38964015 DOI: 10.1016/j.carres.2024.109200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/22/2024] [Accepted: 06/26/2024] [Indexed: 07/06/2024]
Abstract
The polymeric nanoparticles (PNPs) loaded with prednisolone were developed to exhibit pH-responsive properties owing to the attachment of a hydrazone linkage between the copolymer chitosan and mPEG. In the diseased cellular environment, the hydrazone bond tends to break due to reduced pH, leading to the release of the drug from the PNPs at the required site of action. The fabricated PNPs exhibit spherical morphology, optimum size (∼200 nm), negative surface charge, and monodispersed particle size distribution. The encapsulation efficiency of the PNPs was determined to be 71.1 ± 0.79 % and two experiments (polymer weight loss and drug release) confirmed the pH-responsive properties of the PNPs. The cellular study cytotoxicity assay showed biocompatibility of PNPs and drug molecule-mediated toxicity to A549 cells. The ligand atrial natriuretic peptide-attached PNPs internalized into A549 cells via natriuretic peptide receptor-A to achieve target specificity. The PNPs cytotoxicity and pH-response medicated inflammation reduction functionality was studied in inflammation-induced RAW264.7 cell lines. The study observed the PNPs effectively reduced the inflammatory mediators NO and ROS levels in RAW264.7. The results showed that pH-responsive properties of PNPs and this novel fabricated delivery system effectively treat inflammatory and cancer diseases.
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Affiliation(s)
- Mariya Gover Antoniraj
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Henry Linda Jeeva Kumari
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, 620024, Tamil Nadu, India
| | - A Shanmugarathinam
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Ruckmani Kandasamy
- Department of Pharmaceutical Technology, Centre for Excellence in Nanobio Translational Research (CENTRE), University College of Engineering, Anna University, BIT Campus, Tiruchirappalli, 620024, Tamil Nadu, India.
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Sasahara M, Kanda M, Tanaka C, Shimizu D, Umeda S, Takami H, Inokawa Y, Hattori N, Hayashi M, Nakayama G, Kodera Y. Therapeutic antibody targeting natriuretic peptide receptor 1 inhibits gastric cancer growth via BCL-2-mediated intrinsic apoptosis. Int J Cancer 2024; 154:1272-1284. [PMID: 38151776 DOI: 10.1002/ijc.34831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 11/13/2023] [Accepted: 12/06/2023] [Indexed: 12/29/2023]
Abstract
Despite recent advances in the development of therapeutic antibodies, the prognosis of unresectable or metastatic gastric cancer (GC) remains poor. Here, we searched for genes involved in the malignant phenotype of GC and investigated the potential of one candidate gene to serve as a novel therapeutic target. Analysis of transcriptome datasets of GC identified natriuretic peptide receptor 1 (NPR1), a plasma membrane protein, as a potential target. We employed a panel of human GC cell lines and gene-specific small interfering RNA-mediated NPR1 silencing to investigate the roles of NPR1 in malignancy-associated functions and intracellular signaling pathways. We generated an anti-NPR1 polyclonal antibody and examined its efficacy in a mouse xenograft model of GC peritoneal dissemination. Associations between NPR1 expression in GC tissue and clinicopathological factors were also evaluated. NPR1 mRNA was significantly upregulated in several GC cell lines compared with normal epithelial cells. NPR1 silencing attenuated GC cell proliferation, invasion, and migration, and additionally induced the intrinsic apoptosis pathway associated with mitochondrial dysfunction and caspase activation via downregulation of BCL-2. Administration of anti-NPR1 antibody significantly reduced the number and volume of GC peritoneal tumors in xenografted mice. High expression of NPR1 mRNA in clinical GC specimens was associated with a significantly higher rate of postoperative recurrence and poorer prognosis. NPR1 regulates the intrinsic apoptosis pathway and plays an important role in promoting the GC malignant phenotype. Inhibition of NPR1 with antibodies may have potential as a novel therapeutic modality for unresectable or metastatic GC.
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Affiliation(s)
- Masahiro Sasahara
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mitsuro Kanda
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Chie Tanaka
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Dai Shimizu
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinichi Umeda
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Takami
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshikuni Inokawa
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norifumi Hattori
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masamichi Hayashi
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Goro Nakayama
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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3
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Lučić I, Kurtović M, Mlinarić M, Piteša N, Čipak Gašparović A, Sabol M, Milković L. Deciphering Common Traits of Breast and Ovarian Cancer Stem Cells and Possible Therapeutic Approaches. Int J Mol Sci 2023; 24:10683. [PMID: 37445860 DOI: 10.3390/ijms241310683] [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: 05/06/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Breast cancer (BC) and ovarian cancer (OC) are among the most common and deadly cancers affecting women worldwide. Both are complex diseases with marked heterogeneity. Despite the induction of screening programs that increase the frequency of earlier diagnosis of BC, at a stage when the cancer is more likely to respond to therapy, which does not exist for OC, more than 50% of both cancers are diagnosed at an advanced stage. Initial therapy can put the cancer into remission. However, recurrences occur frequently in both BC and OC, which are highly cancer-subtype dependent. Therapy resistance is mainly attributed to a rare subpopulation of cells, named cancer stem cells (CSC) or tumor-initiating cells, as they are capable of self-renewal, tumor initiation, and regrowth of tumor bulk. In this review, we will discuss the distinctive markers and signaling pathways that characterize CSC, their interactions with the tumor microenvironment, and the strategies they employ to evade immune surveillance. Our focus will be on identifying the common features of breast cancer stem cells (BCSC) and ovarian cancer stem cells (OCSC) and suggesting potential therapeutic approaches.
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Affiliation(s)
- Ivan Lučić
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Matea Kurtović
- Laboratory for Hereditary Cancer, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Monika Mlinarić
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Nikolina Piteša
- Laboratory for Hereditary Cancer, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Ana Čipak Gašparović
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Maja Sabol
- Laboratory for Hereditary Cancer, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
| | - Lidija Milković
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia
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4
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Chen Z, Xu P, Wang X, Li Y, Yang J, Xia Y, Wang S, Liu H, Xu Z, Li Z. MSC-NPRA loop drives fatty acid oxidation to promote stemness and chemoresistance of gastric cancer. Cancer Lett 2023; 565:216235. [PMID: 37209945 DOI: 10.1016/j.canlet.2023.216235] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 05/10/2023] [Accepted: 05/16/2023] [Indexed: 05/22/2023]
Abstract
Cisplatin (CDDP)-based chemotherapy is the preferred treatment strategy for advanced stage gastric cancer (GC) patients. Despite the efficacy of chemotherapy, the development of chemoresistance negatively affects the prognosis of GC and the underlying mechanism remains poorly understood. Accumulated evidence suggests that mesenchymal stem cells (MSCs) play important roles in drug resistance. The chemoresistance and stemness of GC cells were observed by colony formation, CCK-8, sphere formation and flow cytometry assays. Cell lines and animal models were utilized to investigate related functions. Western blot, quantitative real-time PCR (qRT-PCR) and co-immunoprecipitation were used to explore related pathways. The results showed that MSCs improved the stemness and chemoresistance of GC cells and accounted for the poor prognosis of GC. Natriuretic peptide receptor A (NPRA) was upregulated in GC cells cocultured with MSCs and knockdown of NPRA reversed the MSC-induced stemness and chemoresistance. At the same time, MSCs could be recruited to GC by NPRA, which formed a loop. In addition, NPRA facilitated stemness and chemoresistance through fatty acid oxidation (FAO). Mechanistically, NPRA protected Mfn2 against protein degradation and promoted its mitochondrial localization, which consequently improved FAO. Furthermore, inhibition of FAO with etomoxir (ETX) attenuated MSC-induced CDDP resistance in vivo. In conclusion, MSC-induced NPRA promoted stemness and chemoresistance by upregulating Mfn2 and improving FAO. These findings help us understand the role of NPRA in the prognosis and chemotherapy of GC. NPRA may be a promising target to overcome chemoresistance.
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Affiliation(s)
- Zetian Chen
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Penghui Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Xinghong Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Ying Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Jing Yang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Yiwen Xia
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Sen Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Hongda Liu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China
| | - Zekuan Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China; Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, Jiangsu Province, China; The Institute of Gastric Cancer, Nanjing Medical University, Nanjing, Jiangsu Province, China.
| | - Zheng Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu Province, China.
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Chang P, Zhang X, Zhang J, Wang J, Wang X, Li M, Wang R, Yu J, Fu F. BNP protects against diabetic cardiomyopathy by promoting Opa1-mediated mitochondrial fusion via activating the PKG-STAT3 pathway. Redox Biol 2023; 62:102702. [PMID: 37116257 PMCID: PMC10165144 DOI: 10.1016/j.redox.2023.102702] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/25/2023] [Accepted: 04/14/2023] [Indexed: 04/30/2023] Open
Abstract
Brain natriuretic peptide (BNP) belongs to the family of natriuretic peptides, which are responsible for a wide range of actions. Diabetic cardiomyopathy (DCM) is often associated with increased BNP levels. This present research intends to explore the role of BNP in the development of DCM and the underlying mechanisms. Diabetes was induced in mice using streptozotocin (STZ). Primary neonatal cardiomyocytes were treated with high glucose. It was found that the levels of plasma BNP started to increase at 8 weeks after diabetes, which preceded the development of DCM. Addition of exogenous BNP promoted Opa1-mediated mitochondrial fusion, inhibited mitochondrial oxidative stress, preserved mitochondrial respiratory capacity and prevented the development of DCM, while knockdown of endogenous BNP exacerbated mitochondrial dysfunction and accelerated DCM. Opa1 knockdown attenuated the aforementioned protective action of BNP both in vivo and in vitro. BNP-induced mitochondrial fusion requires the activation of STAT3, which facilitated Opa1 transcription by binding to its promoter regions. PKG, a crucial signaling biomolecule in the BNP signaling pathway, interacted with STAT3 and induced its activation. Knockdown of NPRA (the receptor of BNP) or PKG blunted the promoting effect of BNP on STAT3 phosphorylation and Opa1-mediated mitochondrial fusion. The results of this study demonstrate for the first time that there is a rise in BNP during the early stages of DCM as a compensatory protection mechanism. BNP is a novel mitochondrial fusion activator in protecting against hyperglycemia-induced mitochondrial oxidative injury and DCM through the activation of NPRA-PKG-STAT3-Opa1 signaling pathway.
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Affiliation(s)
- Pan Chang
- Department of Cardiology, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, 710038, China; Clinical Experimental Center, The Affiliated Xi'an International Medical Center Hospital, Northwest University, Xi'an, 710100, China
| | - Xiaomeng Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Jing Zhang
- Department of Cardiology, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, 710038, China
| | - Jianbang Wang
- Department of Cardiology, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, 710038, China
| | - Xihui Wang
- Department of Cardiology, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, 710038, China
| | - Man Li
- Department of Cardiology, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, 710038, China; Department of Physiology and Pathophysiology, National Key Discipline of Cell Biology, Air Force Medical University, Xi'an, 710032, China
| | - Rui Wang
- Department of Cardiology, The Second Affiliated Hospital, Xi'an Medical University, Xi'an, Shaanxi, 710038, China
| | - Jun Yu
- Clinical Experimental Center, The Affiliated Xi'an International Medical Center Hospital, Northwest University, Xi'an, 710100, China.
| | - Feng Fu
- Department of Physiology and Pathophysiology, National Key Discipline of Cell Biology, Air Force Medical University, Xi'an, 710032, China; Department of Cardiology, Tangdu Hospital, Airforce Medical University, Xi'an, 710038, China.
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6
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Stehle D, Barresi M, Schulz J, Feil R. Heterogeneity of cGMP signalling in tumour cells and the tumour microenvironment: Challenges and chances for cancer pharmacology and therapeutics. Pharmacol Ther 2023; 242:108337. [PMID: 36623589 DOI: 10.1016/j.pharmthera.2023.108337] [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: 11/07/2022] [Revised: 12/21/2022] [Accepted: 01/04/2023] [Indexed: 01/08/2023]
Abstract
The second messenger cyclic guanosine monophosphate (cGMP) is an important regulator of human (patho-)physiology and has emerged as an attractive drug target. Currently, cGMP-elevating drugs are mainly used to treat cardiovascular diseases, but there is also increasing interest in exploring their potential for cancer prevention and therapy. In this review article, we summarise recent findings in cancer-related cGMP research, with a focus on melanoma, breast cancer, colorectal cancer, prostate cancer, glioma, and ovarian cancer. These studies indicate tremendous heterogeneity of cGMP signalling in tumour tissue. It appears that different tumour and stroma cells, and perhaps different sexes, express different cGMP generators, effectors, and degraders. Therefore, the same cGMP-elevating drug can lead to different outcomes in different tumour settings, ranging from inhibition to promotion of tumourigenesis or therapy resistance. These findings, together with recent evidence that increased cGMP signalling is associated with worse prognosis in several human cancers, challenge the traditional view that cGMP elevation generally has an anti-cancer effect. As cGMP pathways appear to be more stable in the stroma than in tumour cells, we suggest that cGMP-modulating drugs should preferentially target the tumour microenvironment. Indeed, there is evidence that phosphodiesterase 5 inhibitors like sildenafil enhance anti-tumour immunity by acting on immune cells. Moreover, many in vivo results obtained with cGMP-modulating drugs could be explained by effects on the tumour vasculature rather than on the tumour cells themselves. We therefore propose a model that incorporates the NO/cGMP signalling pathway in tumour vessels as a key target for cancer therapy. Deciphering the multifaceted roles of cGMP in cancer is not only a challenge for basic research, but also provides a chance to predict potential adverse effects of cGMP-modulating drugs in cancer patients and to develop novel anti-tumour therapies by precision targeting of the relevant cells and molecular pathways.
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Affiliation(s)
- Daniel Stehle
- Interfakultäres Institut für Biochemie (IFIB), Universität Tübingen, Tübingen, Germany
| | - Mariagiovanna Barresi
- Interfakultäres Institut für Biochemie (IFIB), Universität Tübingen, Tübingen, Germany
| | - Jennifer Schulz
- Interfakultäres Institut für Biochemie (IFIB), Universität Tübingen, Tübingen, Germany
| | - Robert Feil
- Interfakultäres Institut für Biochemie (IFIB), Universität Tübingen, Tübingen, Germany.
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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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Mezzasoma L, Talesa VN, Romani R, Bellezza I. ANP and BNP Exert Anti-Inflammatory Action via NPR-1/cGMP Axis by Interfering with Canonical, Non-Canonical, and Alternative Routes of Inflammasome Activation in Human THP1 Cells. Int J Mol Sci 2020; 22:ijms22010024. [PMID: 33375031 PMCID: PMC7792787 DOI: 10.3390/ijms22010024] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 12/11/2022] Open
Abstract
Dysregulated inflammasome activation and interleukin (IL)-1β production are associated with several inflammatory disorders. Three different routes can lead to inflammasome activation: a canonical two-step, a non-canonical Caspase-4/5- and Gasdermin D-dependent, and an alternative Caspase-8-mediated pathway. Natriuretic Peptides (NPs), Atrial Natriuretic Peptide (ANP) and B-type Natriuretic Peptide (BNP), binding to Natriuretic Peptide Receptor-1 (NPR-1), signal by increasing cGMP (cyclic guanosine monophosphate) levels that, in turn, stimulate cGMP-dependent protein kinase-I (PKG-I). We previously demonstrated that, by counteracting inflammasome activation, NPs inhibit IL-1β secretion. Here we aimed to decipher the molecular mechanism underlying NPs effects on THP-1 cells stimulated with lipopolysaccharide (LPS) + ATP. Involvement of cGMP and PKG-I were assessed pre-treating THP-1 cells with the membrane-permeable analogue, 8-Br-cGMP, and the specific inhibitor KT-5823, respectively. We found that NPs, by activating NPR-1/cGMP/PKG-I axis, lead to phosphorylation of NLRP3 at Ser295 and to inflammasome platform disassembly. Moreover, by increasing intracellular cGMP levels and activating phosphodiesterases, NPs interfere with both Gasdermin D and Caspase-8 cleavage, indicating that they disturb non-canonical and alternative routes of inflammasome activation. These results showed that ANP and BNP anti-inflammatory and immunomodulatory actions may involve the inhibition of all the known routes of inflammasome activation. Thus, NPs might be proposed for the treatment of the plethora of diseases caused by a dysregulated inflammasome activation.
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Cuomo A, Pirozzi F, Attanasio U, Franco R, Elia F, De Rosa E, Russo M, Ghigo A, Ameri P, Tocchetti CG, Mercurio V. Cancer Risk in the Heart Failure Population: Epidemiology, Mechanisms, and Clinical Implications. Curr Oncol Rep 2020; 23:7. [PMID: 33263821 PMCID: PMC7716920 DOI: 10.1007/s11912-020-00990-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Along with population aging, the incidence of both heart failure (HF) and cancer is increasing. However, little is known about new-onset cancer in HF patients. This review aims at showing recent discoveries concerning this subset of patients. RECENT FINDINGS Not only cancer and HF share similar risk factors but also HF itself can stimulate cancer development. Some cytokines produced by the failing heart induce mild inflammation promoting carcinogenesis, as it has been recently suggested by an experimental model of HF in mice. The incidence of new-onset cancer is higher in HF patients compared to the general population, and it significantly worsens their prognosis. Moreover, the management of HF patients developing new-onset cancer is challenging, especially due to the limited therapeutic options for patients affected by both cancer and HF and the higher risk of cardiotoxicity from anticancer drugs.
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Affiliation(s)
- Alessandra Cuomo
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Flora Pirozzi
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Umberto Attanasio
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Riccardo Franco
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Francesco Elia
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Eliana De Rosa
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Michele Russo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Alessandra Ghigo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Pietro Ameri
- Cardiovascular Disease Unit, IRCCS Italian Cardiovascular Network, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Internal Medicine, University of Genova, Genoa, Italy
| | - Carlo Gabriele Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, Italy.
- Interdepartmental Center of Clinical and Translational Research, Federico II University, Naples, Italy.
| | - Valentina Mercurio
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
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10
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Ivanova K, Hemmersbach R. Guanylyl Cyclase-cGMP Signaling Pathway in Melanocytes: Differential Effects of Altered Gravity in Non-Metastatic and Metastatic Cells. Int J Mol Sci 2020; 21:ijms21031139. [PMID: 32046325 PMCID: PMC7037284 DOI: 10.3390/ijms21031139] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/24/2020] [Accepted: 02/06/2020] [Indexed: 12/23/2022] Open
Abstract
Human epidermal melanocytes as melanin producing skin cells represent a crucial barrier against UV-radiation and oxidative stress. It was shown that the intracellular signaling molecule cyclic guanosine-3′,5′-monophosphate (cGMP), generated by the guanylyl cyclases (GCs), e.g., the nitric oxide (NO)-sensitive soluble GC (sGC) and the natriuretic peptide-activated particulate GC (GC-A/GC-B), plays a role in the melanocyte response to environmental stress. Importantly, cGMP is involved in NO-induced perturbation of melanocyte–extracellular matrix interactions and in addition, increased NO production during inflammation may lead to loss of melanocytes and support melanoma metastasis. Further, the NO-sensitive sGC is expressed predominantly in human melanocytes and non-metastatic melanoma cells, whereas absence of functional sGC but up-regulated expression of GC-A/GC-B and inducible NO synthase (iNOS) are detected in metastatic cells. Thus, suppression of sGC expression as well as up-regulated expression of GC-A/GC-B/iNOS appears to correlate with tumor aggressiveness. As the cGMP pathway plays important roles in melanocyte (patho)physiology, we present an overview on the differential effects of altered gravity (hypergravity/simulated microgravity) on the cGMP signaling pathway in melanocytes and melanoma cells with different metastatic potential. We believe that future experiments in real microgravity may benefit from considering cGMP signaling as a possible factor for melanocyte transformation and in medication.
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11
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Ahmed A, Gulino A, Amayo S, Arancio W, Florena AM, Belmonte B, Jurjus A, Leone A, Miletich I. Natriuretic peptide system expression in murine and human submandibular salivary glands: a study of the spatial localisation of ANB, BNP, CNP and their receptors. J Mol Histol 2019; 51:3-13. [PMID: 31722080 DOI: 10.1007/s10735-019-09849-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/18/2019] [Indexed: 11/30/2022]
Abstract
The natriuretic peptide (NP) system comprises of three ligands, the Atrial Natriuretic Peptide (ANP), Brain Natriuretic peptide (BNP) and C-type Natriuretic peptide (CNP), and three natriuretic peptide receptors, NPRA, NPRB and NPRC. Here we present a comprehensive study of the natriuretic peptide system in healthy murine and human submandibular salivary glands (SMGs). We show CNP is the dominant NP in mouse and human SMG and is expressed together with NP receptors in ducts, autonomic nerves and the microvasculature of the gland, suggesting CNP autocrine signalling may take place in some of these glandular structures. These data suggest the NP system may control salivary gland function during homeostasis through the regulation of electrolyte re-absorption, neural stimulation and/or blood vessel wall contraction/relaxation. We also show abnormal expression of NPRA in the stroma of a subset of human SMGs resected from patients diagnosed with oral squamous cell carcinoma (OSCC) of non-salivary gland origin. This finding warrants further research to investigate a possible correlation between early OSCC invasion and NPRA overexpression.
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Affiliation(s)
- Araz Ahmed
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, Floor 27 Guy's Tower, London, SE1 9RT, UK
| | - Alessandro Gulino
- Dipartimento Di Promozione Della Salute, Materno-Infantile, Medicina Interna E Specialistica Di Eccellenza "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Simita Amayo
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, Floor 27 Guy's Tower, London, SE1 9RT, UK
| | - Walter Arancio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128, Palermo, Italy
| | - Ada Maria Florena
- Dipartimento Di Promozione Della Salute, Materno-Infantile, Medicina Interna E Specialistica Di Eccellenza "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Beatrice Belmonte
- Dipartimento Di Promozione Della Salute, Materno-Infantile, Medicina Interna E Specialistica Di Eccellenza "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Abdo Jurjus
- Department of Anatomy, Cell Biology and Physiology, American University of Beirut, Beirut, Lebanon
| | - Angelo Leone
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, Floor 27 Guy's Tower, London, SE1 9RT, UK. .,Department of Biomedicine, Neuroscience and Advanced Diagnostic, Bi.N.D, School of Medicine, Institute of Anatomy and Histology, University of Palermo, Palermo, Italy.
| | - Isabelle Miletich
- Centre for Craniofacial and Regenerative Biology, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's Hospital, Floor 27 Guy's Tower, London, SE1 9RT, UK.
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Abstract
Recent epidemiological analyses suggest that incident cancer may be more common among patients with preexisting heart failure (HF) than in patients without HF. Arguments against this notion have been the increased chance of co-occurrence of 2 high-prevalence conditions and increased tumor detection in patients with HF because of intensified medical observation. However, biological data lend support to the hypothesis that HF is an oncogenic condition. Neurohormonal activation has been related to cancer initiation, progression, and dissemination by studies not specifically focusing on HF, which are now reappraised in the light of the emerging evidence that tumors are diagnosed more often in HF than control cohorts. Furthermore, a thought-provoking scenario to be considered is that a systemically perturbed milieu, where low-grade inflammation plays a primary role, leads to both HF and malignancy, thus connecting 1 disease to another. Postischemic HF has been shown to promote tumor growth in an animal model. Exploring these and other pathways potentially linking HF to malignancy is a new and exciting field of research, with the ultimate goal of answering the question of whether HF does promote cancer.
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Affiliation(s)
- Edoardo Bertero
- Cardiovascular Disease Unit, Ospedale Policlinico San Martino IRCCS & Laboratory of Cardiovascular Biology, Department of Internal Medicine, University of Genova, Italy (E.B., M.C., P.A.).,Comprehensive Heart Failure Center, University Clinic Würzburg, Germany (E.B., C.M.)
| | - Marco Canepa
- Cardiovascular Disease Unit, Ospedale Policlinico San Martino IRCCS & Laboratory of Cardiovascular Biology, Department of Internal Medicine, University of Genova, Italy (E.B., M.C., P.A.)
| | - Christoph Maack
- Comprehensive Heart Failure Center, University Clinic Würzburg, Germany (E.B., C.M.)
| | - Pietro Ameri
- Cardiovascular Disease Unit, Ospedale Policlinico San Martino IRCCS & Laboratory of Cardiovascular Biology, Department of Internal Medicine, University of Genova, Italy (E.B., M.C., P.A.)
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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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14
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Schinke C, Qu P, Mehdi SJ, Hoering A, Epstein J, Johnson SK, van Rhee F, Zangari M, Thanendrarajan S, Barlogie B, Davies FE, Yaccoby S, Morgan GJ. The Pattern of Mesenchymal Stem Cell Expression Is an Independent Marker of Outcome in Multiple Myeloma. Clin Cancer Res 2018; 24:2913-2919. [DOI: 10.1158/1078-0432.ccr-17-2627] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 01/24/2018] [Accepted: 03/13/2018] [Indexed: 11/16/2022]
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15
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Mezzasoma L, Peirce MJ, Minelli A, Bellezza I. Natriuretic Peptides: The Case of Prostate Cancer. Molecules 2017; 22:molecules22101680. [PMID: 28994721 PMCID: PMC6151559 DOI: 10.3390/molecules22101680] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 09/28/2017] [Accepted: 10/07/2017] [Indexed: 12/16/2022] Open
Abstract
Cardiac natriuretic peptides have long been known to act as main players in the homeostatic control of blood pressure, salt and water balance. However, in the last few decades, new properties have been ascribed to these hormones. A systematic review of English articles using MEDLINE Search terms included prostate cancer, inflammation, cardiac hormones, atrial natriuretic peptide, and brain natriuretic peptide. Most recent publications were selected. Natriuretic peptides are strongly connected to the immune system, whose two branches, innate and adaptive, are finely tuned and organized to kill invaders and repair injured tissues. These peptides control the immune response and act as anti-inflammatory and immune-modulatory agents. In addition, in cancers, natriuretic peptides have anti-proliferative effects by molecular mechanisms based on the inhibition/regulation of several pathways promoting cell proliferation and survival. Nowadays, it is accepted that chronic inflammation is a crucial player in prostate cancer development and progression. In this review, we summarize the current knowledge on the link between prostate cancer and inflammation and the potential use of natriuretic peptides as anti-inflammatory and anticancer agents.
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Affiliation(s)
- Letizia Mezzasoma
- Dipartimento di Medicina Sperimentale, Università di Perugia, 06123 Perugia, Italy.
| | - Matthew J Peirce
- Dipartimento di Medicina Sperimentale, Università di Perugia, 06123 Perugia, Italy.
| | - Alba Minelli
- Dipartimento di Medicina Sperimentale, Università di Perugia, 06123 Perugia, Italy.
| | - Ilaria Bellezza
- Dipartimento di Medicina Sperimentale, Università di Perugia, 06123 Perugia, Italy.
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16
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Santhekadur PK, Kumar DP, Seneshaw M, Mirshahi F, Sanyal AJ. The multifaceted role of natriuretic peptides in metabolic syndrome. Biomed Pharmacother 2017; 92:826-835. [PMID: 28599248 PMCID: PMC5737745 DOI: 10.1016/j.biopha.2017.05.136] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/25/2017] [Accepted: 05/28/2017] [Indexed: 12/19/2022] Open
Abstract
Due to globalization and sophisticated western and sedentary lifestyle, metabolic syndrome has emerged as a serious public health challenge. Obesity is significantly increasing worldwide because of increased high calorie food intake and decreased physical activity leading to hypertension, dyslipidemia, atherosclerosis, and insulin resistance. Thus, metabolic syndrome constitutes cardiovascular disease, type 2 diabetes, obesity, and nonalcoholic fatty liver disease (NAFLD) and recently some cancers are also considered to be associated with this syndrome. There is increasing evidence of the involvement of natriuretic peptides (NP) in the pathophysiology of metabolic diseases. The natriuretic peptides are cardiac hormones, which are produced in the cardiac atrium, ventricles of the heart and the endothelium. These peptides are involved in the homeostatic control of body water, sodium intake, potassium transport, lipolysis in adipocytes and regulates blood pressure. The three known natriuretic peptide hormones present in the natriuretic system are atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP) and c-type natriuretic peptide (CNP). These three peptides primarily function as endogenous ligands and mainly act via their membrane receptors such as natriuretic peptide receptor A (NPR-A), natriuretic peptide receptor B (NPR-B) and natriuretic peptide receptor C (NPR-C) and regulate various physiological and metabolic functions. This review will shed light on the structure and function of natriuretic peptides and their receptors and their role in the metabolic syndrome.
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Affiliation(s)
- Prasanna K Santhekadur
- McGuire Research Institute, McGuire Veterans Affairs Medical Center, Richmond, VA, USA; Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, VA, 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA.
| | - Divya P Kumar
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Mulugeta Seneshaw
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Faridoddin Mirshahi
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Arun J Sanyal
- McGuire Research Institute, McGuire Veterans Affairs Medical Center, Richmond, VA, USA; Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, Richmond, VA, 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298, USA.
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17
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Nakao Y, Yamada S, Yanamoto S, Tomioka T, Naruse T, Ikeda T, Kurita H, Umeda M. Natriuretic peptide receptor A is related to the expression of vascular endothelial growth factors A and C, and is associated with the invasion potential of tongue squamous cell carcinoma. Int J Oral Maxillofac Surg 2017; 46:1237-1242. [PMID: 28521969 DOI: 10.1016/j.ijom.2017.04.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 03/08/2017] [Accepted: 04/25/2017] [Indexed: 10/19/2022]
Abstract
Natriuretic peptide receptor A (NPRA) is one of the natriuretic peptide receptors. NPRA has been reported to play a role in the carcinogenesis of various tumours, as well as functional roles in renal, cardiovascular, endocrine, and skeletal homeostasis. The clinicopathological significance of NPRA in tongue squamous cell carcinoma (TSCC) was examined in this study. The overexpression of NPRA was more frequent in TSCC (21/58, 36.2%) than in the normal oral epithelium (0/10, 0%) (P<0.05). It was also more frequently observed in cancers with higher grades according to the pattern of invasion (grades 1-2 vs. grades 3-4, P<0.01). Additionally, there was a tendency towards an association between the N classification and NPRA expression (N0 vs. N1-2, P=0.06). Significant correlations were also observed between the expression of NPRA and that of VEGF-A (P<0.001) and VEGF-C (P<0.001). The high-NPRA expression group had a significantly poorer prognosis, with a 5-year disease-specific survival rate of 39.7%, compared to 97.0% in the low-expression group (P<0.001). Multivariate analysis suggested that the overexpression of NPRA may also be an independent prognostic factor (P<0.05). In conclusion, NPRA is associated with VEGF expression levels, invasion, and metastasis, and may be a prognostic factor in TSCC patients.
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Affiliation(s)
- Y Nakao
- Department of Clinical Oral Oncology, Unit of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan.
| | - S Yanamoto
- Department of Clinical Oral Oncology, Unit of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T Tomioka
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Naruse
- Department of Clinical Oral Oncology, Unit of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T Ikeda
- Department of Oral Pathology and Bone Metabolism, Unit of Basic Medical Sciences, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - M Umeda
- Department of Clinical Oral Oncology, Unit of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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18
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M. GA, C. SK, Henry LJK, Natesan S, Kandasamy R. Atrial natriuretic peptide-conjugated chitosan-hydrazone-mPEG copolymer nanoparticles as pH-responsive carriers for intracellular delivery of prednisone. Carbohydr Polym 2017; 157:1677-1686. [DOI: 10.1016/j.carbpol.2016.11.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 11/17/2016] [Accepted: 11/17/2016] [Indexed: 10/20/2022]
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19
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Li Z, Wang JW, Wang WZ, Zhi XF, Zhang Q, Li BW, Wang LJ, Xie KL, Tao JQ, Tang J, Wei S, Zhu Y, Xu H, Zhang DC, Yang L, Xu ZK. Natriuretic peptide receptor A inhibition suppresses gastric cancer development through reactive oxygen species-mediated G2/M cell cycle arrest and cell death. Free Radic Biol Med 2016; 99:593-607. [PMID: 27634171 DOI: 10.1016/j.freeradbiomed.2016.08.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/11/2016] [Accepted: 08/14/2016] [Indexed: 12/15/2022]
Abstract
Natriuretic peptide receptor A (NPRA), the major receptor for atrial natriuretic peptide (ANP), has been implicated in tumorigenesis; however, the role of ANP-NPRA signaling in the development of gastric cancer remains unclear. Immunohistochemical analyses indicated that NPRA expression was positively associated with gastric tumor size and cancer stage. NPRA inhibition by shRNA induced G2/M cell cycle arrest, cell death, and autophagy in gastric cancer cells, due to accumulation of reactive oxygen species (ROS). Either genetic or pharmacologic inhibition of autophagy led to caspase-dependent cell death. Therefore, autophagy induced by NPRA silencing may represent a cytoprotective mechanism. ROS accumulation activated c-Jun N-terminal kinase (JNK) and AMP-activated protein kinase (AMPK). ROS-mediated activation of JNK inhibited cell proliferation by disturbing cell cycle and decreased cell viability. In addition, AMPK activation promoted autophagy in NPRA-downregulated cancer cells. Overall, our results indicate that the inhibition of NPRA suppresses gastric cancer development and targeting NPRA may represent a promising strategy for the treatment of gastric cancer.
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Affiliation(s)
- Zheng Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ji-Wei Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wei-Zhi Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiao-Fei Zhi
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Department of General Surgery, The Affiliated Hospital of Nantong University, Nantong, China
| | - Qun Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Bo-Wen Li
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lin-Jun Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Kun-Ling Xie
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jin-Qiu Tao
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jie Tang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Song Wei
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yi Zhu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hao Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Dian-Cai Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Li Yang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ze-Kuan Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China; Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.
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20
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Huang LT, Chang HW, Wu MJ, Lai YT, Wu WC, Yu WCY, Chang VHS. Klf10 deficiency in mice exacerbates pulmonary inflammation by increasing expression of the proinflammatory molecule NPRA. Int J Biochem Cell Biol 2016; 79:231-238. [PMID: 27592451 DOI: 10.1016/j.biocel.2016.08.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 08/06/2016] [Accepted: 08/29/2016] [Indexed: 01/03/2023]
Abstract
KLF10 is a transforming growth factor (TGF)-β/Smad downstream regulated gene. KLF10 binds to the promoter of target genes and mimics the effects of TGF-β as a transcriptional factor. In our laboratory, we noted that Klf10 deficiency in mice is associated with significant inflammation of the lungs. However, the precise mechanism of this association remains unknown. We previously identified NPRA as a target gene potentially regulated by KLF10 through direct binding; NPRA knockout have known that prevented lung inflammation in a mouse model of allergic asthma. Here, we further explored the regulatory association between KLF10 and NPRA on the basis of the aforementioned findings. Our results demonstrated that KLF10 acts as a transcriptional repressor of NPRA and that KLF10 binding reduces NPRA expression in vitro. Compared with wild-type mice, Klf10-deficient mice were more sensitive to lipopolysaccharide or ovalbumin challenge and showed more severe inflammatory histological changes in the lungs. Moreover, Klf10-deficient mice showed pulmonary neutrophil accumulation. These findings collectively reveal the precise site where KLF10 signaling affects pulmonary inflammation by attenuating NPRA expression. They also verify the importance of KLF10 and atrial natriuretic peptide/NPRA in exerting influences on chronic pulmonary disease pathogenesis.
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Affiliation(s)
- Liang-Ti Huang
- Department of Pediatrics, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine,Taipei Medical University, Taiwan
| | - Hsuen-Wen Chang
- Laboratory Animal Center, Taipei Medical University, Taipei, Taiwan
| | - Min-Ju Wu
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Yong-Tzuo Lai
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Wen-Chi Wu
- Laboratory Animal Center, Taipei Medical University, Taipei, Taiwan
| | - Winston C Y Yu
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Taiwan
| | - Vincent H S Chang
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.
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21
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SPECT and PET imaging of angiogenesis and arteriogenesis in pre-clinical models of myocardial ischemia and peripheral vascular disease. Eur J Nucl Med Mol Imaging 2016; 43:2433-2447. [PMID: 27517840 PMCID: PMC5095166 DOI: 10.1007/s00259-016-3480-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 07/28/2016] [Indexed: 01/03/2023]
Abstract
Purpose The extent of neovascularization determines the clinical outcome of coronary artery disease and other occlusive cardiovascular disorders. Monitoring of neovascularization is therefore highly important. This review article will elaborately discuss preclinical studies aimed at validating new nuclear angiogenesis and arteriogenesis tracers. Additionally, we will briefly address possible obstacles that should be considered when designing an arteriogenesis radiotracer. Methods A structured medline search was the base of this review, which gives an overview on different radiopharmaceuticals that have been evaluated in preclinical models. Results Neovascularization is a collective term used to indicate different processes such as angiogenesis and arteriogenesis. However, while it is assumed that sensitive detection through nuclear imaging will facilitate translation of successful therapeutic interventions in preclinical models to the bedside, we still lack specific tracers for neovascularization imaging. Most nuclear imaging research to date has focused on angiogenesis, leaving nuclear arteriogenesis imaging largely overlooked. Conclusion Although angiogenesis is the process which is best understood, there is no scarcity in theoretical targets for arteriogenesis imaging.
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Dhayade S, Kaesler S, Sinnberg T, Dobrowinski H, Peters S, Naumann U, Liu H, Hunger RE, Thunemann M, Biedermann T, Schittek B, Simon HU, Feil S, Feil R. Sildenafil Potentiates a cGMP-Dependent Pathway to Promote Melanoma Growth. Cell Rep 2016; 14:2599-610. [PMID: 26971999 DOI: 10.1016/j.celrep.2016.02.028] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 11/23/2015] [Accepted: 02/01/2016] [Indexed: 01/12/2023] Open
Abstract
Sildenafil, an inhibitor of the cGMP-degrading phosphodiesterase 5 that is used to treat erectile dysfunction, has been linked to an increased risk of melanoma. Here, we have examined the potential connection between cGMP-dependent signaling cascades and melanoma growth. Using a combination of biochemical assays and real-time monitoring of melanoma cells, we report a cGMP-dependent growth-promoting pathway in murine and human melanoma cells. We document that C-type natriuretic peptide (CNP), a ligand of the membrane-bound guanylate cyclase B, enhances the activity of cGMP-dependent protein kinase I (cGKI) in melanoma cells by increasing the intracellular levels of cGMP. Activation of this cGMP pathway promotes melanoma cell growth and migration in a p44/42 MAPK-dependent manner. Sildenafil treatment further increases intracellular cGMP concentrations, potentiating activation of this pathway. Collectively, our data identify this cGMP-cGKI pathway as the link between sildenafil usage and increased melanoma risk.
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Affiliation(s)
- Sandeep Dhayade
- Interfakultäres Institut für Biochemie, University of Tübingen, 72076 Tübingen, Germany
| | - Susanne Kaesler
- Department of Dermatology, University of Tübingen, 72076 Tübingen, Germany
| | - Tobias Sinnberg
- Department of Dermatology, University of Tübingen, 72076 Tübingen, Germany
| | - Hyazinth Dobrowinski
- Interfakultäres Institut für Biochemie, University of Tübingen, 72076 Tübingen, Germany
| | - Stefanie Peters
- Interfakultäres Institut für Biochemie, University of Tübingen, 72076 Tübingen, Germany
| | - Ulrike Naumann
- Hertie-Institut für klinische Hirnforschung, Abteilung Vaskuläre Neurologie, Labor für Molekulare Neuroonkologie, 72076 Tübingen, Germany
| | - He Liu
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Robert E Hunger
- Department of Dermatology, Inselspital, University Hospital Bern, 3010 Bern, Switzerland
| | - Martin Thunemann
- Interfakultäres Institut für Biochemie, University of Tübingen, 72076 Tübingen, Germany
| | - Tilo Biedermann
- Department of Dermatology, University of Tübingen, 72076 Tübingen, Germany; Department of Dermatology and Allergology, Technische Universität München, 80802 Munich, Germany
| | - Birgit Schittek
- Department of Dermatology, University of Tübingen, 72076 Tübingen, Germany
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Susanne Feil
- Interfakultäres Institut für Biochemie, University of Tübingen, 72076 Tübingen, Germany
| | - Robert Feil
- Interfakultäres Institut für Biochemie, University of Tübingen, 72076 Tübingen, Germany.
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Qi C, Zhou Q, Li B, Yang Y, Cao L, Ye Y, Li J, Ding Y, Wang H, Wang J, He X, Zhang Q, Lan T, Lee KKH, Li W, Song X, Zhou J, Yang X, Wang L. Glipizide, an antidiabetic drug, suppresses tumor growth and metastasis by inhibiting angiogenesis. Oncotarget 2015; 5:9966-79. [PMID: 25294818 PMCID: PMC4259451 DOI: 10.18632/oncotarget.2483] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Angiogenesis is involved in the development, progression and metastasis of various human cancers. Herein, we report the discovery of glipizide, a widely used drug for type 2 diabetes mellitus, as a promising anticancer agent through the inhibition of tumor angiogenesis. By high-throughput screening (HTS) of an FDA approved drug library utilizing our in vivo chick embryo chorioallantoic membrane (CAM) and yolk sac membrane (YSM) models, glipizide has been identified to significantly inhibit blood vessel formation and development. Moreover, glipizide was found to suppress tumor angiogenesis, tumor growth and metastasis using xenograft tumor and MMTV-PyMT transgenic mouse models. We further revealed that the anticancer capability of glipizide is not attributed to its antiproliferative effects, which are not significant against various human cancer cell lines. To investigate whether its anticancer efficacy is associated with the glucose level alteration induced by glipizide application, glimepiride, another medium to long-acting sulfonylurea antidiabetic drug in the same class, was employed for the comparison studies in the same fashion. Interestingly, glimepiride has demonstrated no significant impact on the tumor growth and metastasis, indicating that the anticancer effects of glipizide is not ascribed to its antidiabetic properties. Furthermore, glipizide suppresses endothelial cell migration and the formation of tubular structures, thereby inhibiting angiogenesis by up-regulating the expression of natriuretic peptide receptor A. These findings uncover a novel mechanism of glipizide as a potential cancer therapy, and also for the first time, provide direct evidence to support that treatment with glipizide may reduce the cancer risk for diabetic patients.
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Affiliation(s)
- Cuiling Qi
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China. These authors contributed equally to this work
| | - Qin Zhou
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China. These authors contributed equally to this work
| | - Bin Li
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yang Yang
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Liu Cao
- Key Laboratory of Medical Cell Biology, China Medical University, He Ping District, Shen Yang City, Liao Ning Province, China
| | - Yuxiang Ye
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiangchao Li
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yi Ding
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Huiping Wang
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jintao Wang
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaodong He
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qianqian Zhang
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Tian Lan
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kenneth Ka Ho Lee
- Key Laboratory for Regenerative Medicine of the Ministry of Education, School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Weidong Li
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaoyu Song
- Key Laboratory of Medical Cell Biology, China Medical University, He Ping District, Shen Yang City, Liao Ning Province, China
| | - Jia Zhou
- Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States
| | - Xuesong Yang
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou, China
| | - Lijing Wang
- Vascular Biology Research Institute, Guangdong Pharmaceutical University, Guangzhou, China
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Ozakpinar OB, Maurer AM, Ozsavci D. Ovarian stem cells: From basic to clinical applications. World J Stem Cells 2015; 7:757-768. [PMID: 26029346 PMCID: PMC4444615 DOI: 10.4252/wjsc.v7.i4.757] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 01/28/2015] [Accepted: 03/18/2015] [Indexed: 02/06/2023] Open
Abstract
The field of reproductive biology has undergone significant developments in the last decade. The notion that there is a fixed reserve pool of oocytes before birth was established by Zuckerman in 1951. However, in 2004, an article published in nature challenged this central dogma of mammalian reproductive biology. Tilly’s group reported the existence of ovarian germline stem cells (GSCs) in postnatal ovaries of mice and suggested that the bone marrow could be an extragonadal source of ovarian GSCs. These findings were strongly criticized; however, several independent groups have since successfully isolated and characterized ovarian GSCs in postnatal mice. The ovarian GSCs are located in the ovarian surface epithelium and express markers of undifferentiated GSCs. When transplanted into mouse ovaries, mouse ovarian GSCs could differentiate and produce embryos and offspring. Similarly, in a recent study, ovarian GSCs were found to be present in the ovaries of women of reproductive age. Conversely, there is increasing evidence that stem cells responsible for maintaining a healthy state in normal tissue may be a source of some cancers, including ovarian cancer. Cancer stem cells (CSCs) have been found in many tissues, including ovaries. Some researchers have suggested that ovarian cancer may be a result of the transformation and dysfunction of ovarian GSCs with self-renewal properties. Drug resistant and metastasis-generating CSCs are responsible for many important problems affecting ovarian cancer patients. Therefore, the identification of CSCs will provide opportunities for the development of new therapeutic strategies for treatments for infertility and ovarian cancer. In this article, we summarize the current understanding of ovarian GSCs in adult mammals, and we also discuss whether there is a relationship between GSCs and CSCs.
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Li D, Lu CJ, Hao G, Wright H, Woodward L, Liu K, Vergari E, Surdo NC, Herring N, Zaccolo M, Paterson DJ. Efficacy of B-Type Natriuretic Peptide Is Coupled to Phosphodiesterase 2A in Cardiac Sympathetic Neurons. Hypertension 2015; 66:190-8. [PMID: 25916722 DOI: 10.1161/hypertensionaha.114.05054] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/26/2015] [Indexed: 12/23/2022]
Abstract
Elevated B-type natriuretic peptide (BNP) regulates cGMP-phosphodiesterase activity. Its elevation is regarded as an early compensatory response to cardiac failure where it can facilitate sympathovagal balance and cardiorenal homeostasis. However, recent reports suggest a paradoxical proadrenergic action of BNP. Because phosphodiesterase activity is altered in cardiovascular disease, we tested the hypothesis that BNP might lose its efficacy by minimizing the action of cGMP on downstream pathways coupled to neurotransmission. BNP decreased norepinephrine release from atrial preparations in response to field stimulation and also significantly reduced the heart rate responses to sympathetic nerve stimulation in vitro. Using electrophysiological recording and fluorescence imaging, BNP also reduced the depolarization evoked calcium current and intracellular calcium transient in isolated cardiac sympathetic neurons. Pharmacological manipulations suggested that the reduction in the calcium transient was regulated by a cGMP/protein kinase G pathway. Fluorescence resonance energy transfer measurements for cAMP, and an immunoassay for cGMP, showed that BNP increased cGMP, but not cAMP. In addition, overexpression of phosphodiesterase 2A after adenoviral gene transfer markedly decreased BNP stimulation of cGMP and abrogated the BNP responses to the calcium current, intracellular calcium transient, and neurotransmitter release. These effects were reversed on inhibition of phosphodiesterase 2A. Moreover, phosphodiesterase 2A activity was significantly elevated in stellate neurons from the prohypertensive rat compared with the normotensive control. Our data suggest that abnormally high levels of phosphodiesterase 2A may provide a brake against the inhibitory action of BNP on sympathetic transmission.
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Affiliation(s)
- Dan Li
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom.
| | - Chieh-Ju Lu
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Guoliang Hao
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Hannah Wright
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Lavinia Woodward
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Kun Liu
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Elisa Vergari
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Nicoletta C Surdo
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Neil Herring
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Manuela Zaccolo
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - David J Paterson
- From the Burdon Sanderson Cardiac Science Centre, Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom.
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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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Subramanian V, Vellaichamy E. Atrial natriuretic peptide (ANP) inhibits DMBA/croton oil induced skin tumor growth by modulating NF-κB, MMPs, and infiltrating mast cells in swiss albino mice. Eur J Pharmacol 2014; 740:388-97. [PMID: 25058907 DOI: 10.1016/j.ejphar.2014.07.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 07/11/2014] [Accepted: 07/14/2014] [Indexed: 01/29/2023]
Abstract
Cardiac hormone atrial natriuretic peptide (ANP) and its receptor, natriuretic peptide receptor-A (NPR-A) are implicated as a vital regulator of cancer cell growth and tumor progression. However, the underlying mechanism by which ANP opposes the cancer growth in in-vivo remains unknown. Herein, we investigated the anti-cancer activity of ANP on 7, 12-dimethyl benzanthracence (DMBA)/Croton oil- induced two-step skin carcinogenic mouse model. Skin tumor incidence and tumor volume were recorded during the experimental period of 16 weeks. ANP (1 μg/kg body weight/alternate days for 4 weeks) was injected subcutaneously from the 13th week of DMBA/Croton oil induction. ANP treatment markedly inhibited the skin tumor growth (P<0.001). A significant reduction in the level of NF-κB activation (P<0.001), infiltrating mast cell count (P<0.01) and MMP-2/-9 (P<0.001, respectively) were noticed in the ANP treated mice skin tissue. Further, ANP treatment revert back the altered levels of serum LDH-4, C-reactive protein (CRP), and enzymatic antioxidants (SOD and CAT activities) to near normal level. Taken together, the results of this study suggest that ANP opposes the skin carcinogenesis by suppressing the inflammatory response and MMPs.
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Affiliation(s)
- Vimala Subramanian
- Department of Biochemistry, University of Madras, Guindy campus, Chennai 600025, India
| | - Elangovan Vellaichamy
- Department of Biochemistry, University of Madras, Guindy campus, Chennai 600025, India.
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Zhang J, Zhao Z, Wang J. Natriuretic peptide receptor A as a novel target for cancer. World J Surg Oncol 2014; 12:174. [PMID: 24894887 PMCID: PMC4049422 DOI: 10.1186/1477-7819-12-174] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 05/09/2014] [Indexed: 11/22/2022] Open
Abstract
The receptor for the cardiac hormone atrial natriuretic peptide (ANP), natriuretic peptide receptor A (NPR-A), has been reported to be expressed in lung cancer, prostate cancer and ovarian cancer. NPR-A expression and signaling is important for tumor growth; its deficiency protects C57BL/6 mice from lung, skin and ovarian cancers. This suggests that NPR-A is a new marker and a new target for cancer therapy. Recently, NPR-A has been demonstrated to be expressed in pre-implantation embryos and in embryonic stem cells, which has a novel role in the maintenance of self-renewal and pluripotency of embryonic stem cells. A nanoparticle-formulated interfering RNA for NPR-A attenuated B16 melanoma tumors in mice. Ectopic expression of a plasmid encoding NP73-102, the NH2-terminal peptide of the ANP prohormone which downregulates NPR-A expression, also suppressed lung metastasis of A549 cells in nude mice and tumorigenesis of Line 1 cells in immunocompetent BALB/c mice. These results suggest that NPR-A is involved in tumorigenesis and a new target for cancer therapy. This review focuses on structure, abnormal functions and carcinogenic mechanisms of NPR-A to investigate its role in tumorigenesis.
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Affiliation(s)
| | | | - Jiansheng Wang
- Department of Thoracic Surgery 2, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
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Zhao Z, Liu H, Yang Y, Sun K, Li M, Zhang J, Cai H, Wang J. Expression of natriuretic peptide receptor-A in esophageal squamous cell carcinomas and the relationship with tumor invasion and migration. World J Surg Oncol 2014; 12:154. [PMID: 24885858 PMCID: PMC4038370 DOI: 10.1186/1477-7819-12-154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 05/06/2014] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The natriuretic peptide receptor-A (NPRA) has been investigated as a receptor of natriuretic peptides in the cardiovascular system. In this study, however, we analyze the expression status of NPRA and the relationship with tumor invasion in esophageal squamous cell carcinoma (ESCC) for the first time. METHODS Western blots were used to examine the expression status of protein in human ESCC cell lines. Then, we used immunohistochemistry to detect the expression of NPRA in 45 ESCC specimens and 40 corresponding nontumor tissues. The clinical data were analyzed through statistical methods. Sh-RNA-NPRA was transfected into Eca109 cells to detect the relationship between NPRA and cell invasion through transwell assays. RESULTS In esophageal squamous cells, the expression of NPRA was strongly detected in the cytoplasm, while undetectable or very weak in the nucleus. The positive rates of NPRA in cancer tissues are significantly higher than that in nontumor tissues (P<0.05). Clinicopathological analyses revealed that increased NPRA expression correlated with differentiation and TNM stage (P<0.05), while it showed no statistically significant association with age, gender, and lymph node metastasis. In analysis of prognosis, we found that highly.Transwell assays showed that NPRA promoted Eca109 cell migration and invasion in vitro and may be involved in MMP2 and MMP9 activation. CONCLUSIONS NPRA protein is highly expressed in ESCC tissues and could promote Eca109 cell migration and invasion in vitro.
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Affiliation(s)
- Zhilong Zhao
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
- Department of Surgical Oncology, Baoji Central hospital, Jiang Tan Road no. 8, Baoji, Shaanxi 721000, China
| | - Haoqian Liu
- Department of Surgical Oncology, Baoji Central hospital, Jiang Tan Road no. 8, Baoji, Shaanxi 721000, China
| | - Ya Yang
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
| | - Kai Sun
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
| | - Min Li
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
| | - Jia Zhang
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
| | - Hui Cai
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
| | - Jiansheng Wang
- Department of second Thoracic surgery, First Affiliated Hospital, Xi'an Jiaotong University, Yanta West Road no. 277, Xi'an, Shaanxi 710061, China
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Mallela J, Ravi S, Jean Louis F, Mulaney B, Cheung M, Sree Garapati U, Chinnasamy V, Wang C, Nagaraj S, Mohapatra SS, Mohapatra S. Natriuretic peptide receptor A signaling regulates stem cell recruitment and angiogenesis: a model to study linkage between inflammation and tumorigenesis. Stem Cells 2014; 31:1321-9. [PMID: 23533187 DOI: 10.1002/stem.1376] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 02/09/2013] [Accepted: 02/15/2013] [Indexed: 12/21/2022]
Abstract
Natriuretic peptide receptor A (NPRA), the signaling receptor for the cardiac hormone, atrial natriuretic peptide (ANP), is expressed abundantly in inflamed/injured tissues and tumors. NPRA deficiency substantially decreases tissue inflammation and inhibits tumor growth. However, the precise mechanism of NPRA function and whether it links inflammation and tumorigenesis remains unknown. Since both injury repair and tumor growth require stem cell recruitment and angiogenesis, we examined the role of NPRA signaling in tumor angiogenesis as a model of tissue injury repair in this study. In in vitro cultures, aortas from NPRA-KO mice show significantly lower angiogenic response compared to wild-type counterparts. The NPRA antagonist that decreases NPRA expression, inhibits lipopolysaccharide-induced angiogenesis. The reduction in angiogenesis correlates with decreased expression of vascular endothelial growth factor and chemokine (C-X-C motif) receptor 4 (CXCR4) implicating a cell recruitment defect. To test whether NPRA regulates migration of cells to tumors, mesenchymal stem cells (MSCs) were administered i.v., and the results showed that MSCs fail to migrate to the tumor microenvironment in NPRA-KO mice. However, coimplanting tumor cells with MSCs increases angiogenesis and tumorigenesis in NPRA-KO mice, in part by promoting expression of CXCR4 and its ligand, stromal cell-derived factor 1α. Taken together, these results demonstrate that NPRA signaling regulates stem cell recruitment and angiogenesis leading to tumor growth. Thus, NPRA signaling provides a key linkage between inflammation and tumorigenesis, and NPRA may be a target for drug development against cancers and tissue injury repair.
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Affiliation(s)
- Jaya Mallela
- Department of Molecular Medicine, University of South Florida, Tampa, FL, USA
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Vellaichamy E, Das S, Subramanian U, Maeda N, Pandey KN. Genetically altered mutant mouse models of guanylyl cyclase/natriuretic peptide receptor-A exhibit the cardiac expression of proinflammatory mediators in a gene-dose-dependent manner. Endocrinology 2014; 155:1045-56. [PMID: 24424043 PMCID: PMC3929735 DOI: 10.1210/en.2013-1416] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The objective of this study was to examine whether genetically determined differences in the guanylyl cyclase/natriuretic peptide receptor-A gene (Npr1) affect cardiac expression of proinflammatory cytokines, hypertrophic markers, nuclear factor-κB (NF-κB), and activating protein-1 (AP-1) in am Npr1 gene-dose-dependent manner. In the present studies, adult male Npr1 gene-disrupted (Npr1(-/-)), wild-type (Npr1(+/+)), and gene-duplicated (Npr1(++/++)) mice were used. The Npr1(-/-) mice showed 41 mm Hg higher systolic blood pressure and 60% greater heart weight to body weight (HW/BW) ratio; however, Npr1(++/++) mice exhibited 15 mm Hg lower systolic blood pressure and 12% reduced HW/BW ratio compared with Npr1(+/+) mice. Significant upregulation of gene expression of proinflammatory cytokines and hypertrophic markers along with enhanced NF-κB/AP-1 binding activities were observed in the Npr1(-/-) mouse hearts. Conversely, hypertrophic markers and proinflammatory cytokines gene expression as well as NF-κB/AP-1 binding activities were markedly decreased in Npr1(++/++) mouse hearts compared with wild-type mice. The ventricular guanylyl cyclase activity and cGMP levels were reduced by 96% and 87%, respectively, in Npr1(-/-) mice; however, these parameters were amplified by 2.8-fold and 3.8-fold, respectively, in Npr1(++/++) mice. Echocardiographic analysis revealed significantly increased fractional shortening in Npr1(++/++) mice (P < .05) but greatly decreased in Npr1(-/-) mice (P < .01) hearts compared with Npr1(+/+) mice. The present findings suggest that Npr1 represses the expression of cardiac proinflammatory mediators, hypertrophic markers, and NF-κB/AP-1-mediated mechanisms, which seem to be associated in an Npr1 gene-dose-dependent manner.
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Affiliation(s)
- Elangovan Vellaichamy
- Department of Physiology Health Sciences Center (E.V., S.D., U.S., K.N.P.), Tulane University School of Medicine, New Orleans, Louisiana 70112; and Department of Pathology and Laboratory of Medicine (N.M.), University of North Carolina, Chapel Hill, North Carolina 27516
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Zhang J, Zhao Z, Zu C, Hu H, Shen H, Zhang M, Wang J. Atrial natriuretic peptide modulates the proliferation of human gastric cancer cells via KCNQ1 expression. Oncol Lett 2013; 6:407-414. [PMID: 24137337 PMCID: PMC3789098 DOI: 10.3892/ol.2013.1425] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 05/24/2013] [Indexed: 01/12/2023] Open
Abstract
Atrial natriuretic peptide (ANP) and brain NP (BNP) belong to the NP family that regulates mammalian blood volume and blood pressure. ANP signaling through NP receptor A (NPR-A)/cyclic guanosine 3′5′-monophosphate (cGMP)/ cGMP-dependent protein kinase (PKG) activates various downstream effectors involved in cell growth, apoptosis, proliferation and inflammation. Evidence has shown the critical role of plasma K+ channels in the regulation of tumor cell proliferation. However, the role of ANP in the proliferation of gastric cancer cells is not clear. In the present study, the expression of NPR-A in the human gastric cancer cell line, AGS, and the effect of ANP on the proliferation of AGS cells were investigated using western blotting, immunofluorescence, qPCR and patch clamp assays. The K+ current was also analyzed in the effect of ANP on the proliferation of AGS cells. NPR-A was expressed in the human gastric cancer AGS cell line. Lower concentrations of ANP promoted the proliferation of the AGS cells, although higher concentrations decreased their proliferation. Significant increases in the levels of cGMP activity were observed in the AGS cells treated with 10−10, 10−9 and 10−8 M ANP compared with the controls, but no significant differences were observed in the 10−7 and 10−6 M ANP groups. The patch clamp results showed that 10−9 M ANP significantly increased the tetraethylammonium (TEA)- and 293B-sensitive K+ current, while 10−6 M ANP significantly decreased the TEA- and 293B-sensitive K+ current. The results showed that 10−10 and 10−9 M ANP significantly upregulated the expression of potassium voltage-gated channel, KQT-like subfamily, member 1 (KCNQ1) at the protein and mRNA levels, although 10−7 and 10−6 M ANP significantly downregulated the expression of KCNQ1. The data indicated that lower and higher concentrations of ANP have opposite effects on the proliferation of AGS cells through cGMP-dependent or -independent pathways. KCNQ1 upregulation and downregulation by lower and higher concentrations of ANP, respectively, have separate effects on the promotion and inhibition of proliferation.
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Affiliation(s)
- Jia Zhang
- Department of Surgical Oncology, First Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Pressly ED, Pierce RA, Connal LA, Hawker CJ, Liu Y. Nanoparticle PET/CT imaging of natriuretic peptide clearance receptor in prostate cancer. Bioconjug Chem 2013; 24:196-204. [PMID: 23272904 PMCID: PMC3578065 DOI: 10.1021/bc300473x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Atrial natriuretic peptide has been recently discovered to have anticancer effects via interaction with cell surface natriuretic peptide receptor A (NPRA) and natriuretic peptide clearance receptor (NPRC). In a preclinical model, NPRA expression has been identified during tumor angiogenesis and may serve as a potential prognostic marker and target for prostate cancer (PCa) therapy. However, the presence of NPRC receptor in the PCa model has not yet been assessed. Furthermore, there is still no report using nanoparticle for PCa positron emission tomography (PET) imaging. Herein, an amphiphilic comb-like nanoparticle was synthesized with controlled properties through modular construction containing C-atrial natriuretic factor (CANF) for NPRC receptor targeting and 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) chelator for high specific activity Cu-64 radiolabeling. The pharmacokinetics of (64)Cu-CANF-Comb exhibited tuned biodistribution and optimized in vivo profile in contrast to the nontargeted (64)Cu-Comb nanoparticle. PET imaging with (64)Cu-CANF-Comb in CWR22 PCa tumor model showed high blood pool retention, low renal clearance, enhanced tumor uptake, and decreased hepatic burden relative to the nontargeted (64)Cu-Comb. Immunohistochemistry staining confirmed the presence of NPRC receptor in tumor tissue. Competitive PET receptor blocking study demonstrated the targeting specificity of (64)Cu-CANF-Comb to NPRC receptor in vivo. These results establish a new nanoagent for prostate cancer PET imaging.
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Affiliation(s)
- Eric D. Pressly
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Richard A. Pierce
- Department of Medicine, Washington University, St. Louis, Missouri 63110, United States
| | - Luke A. Connal
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Craig J. Hawker
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Materials Department and Department of Chemistry, and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Yongjian Liu
- Department of Radiology, Washington University, St. Louis, Missouri 63110, United States
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Medullary Thyroid Cancer—Current Treatment Strategy, Novel Therapies and Perspectives for the Future. Discov Oncol 2012; 3:218-26. [DOI: 10.1007/s12672-012-0119-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 07/16/2012] [Indexed: 02/06/2023] Open
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Serafino A, Moroni N, Psaila R, Zonfrillo M, Andreola F, Wannenes F, Mercuri L, Rasi G, Pierimarchi P. Anti-proliferative effect of atrial natriuretic peptide on colorectal cancer cells: Evidence for an Akt-mediated cross-talk between NHE-1 activity and Wnt/β-catenin signaling. Biochim Biophys Acta Mol Basis Dis 2012; 1822:1004-18. [DOI: 10.1016/j.bbadis.2012.02.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 02/14/2012] [Accepted: 02/15/2012] [Indexed: 01/26/2023]
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Belting M, Almgren P, Manjer J, Hedblad B, Struck J, Wang TJ, Bergmann A, Melander O. Vasoactive Peptides with Angiogenesis-Regulating Activity Predict Cancer Risk in Males. Cancer Epidemiol Biomarkers Prev 2012; 21:513-22. [DOI: 10.1158/1055-9965.epi-11-0840] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Wang C, Howell M, Raulji P, Davis Y, Mohapatra S. Preparation and Characterization of Molecularly Imprinted Polymeric Nanoparticles for Atrial Natriuretic Peptide (ANP). ADVANCED FUNCTIONAL MATERIALS 2011; 21:4423-4429. [PMID: 23459692 PMCID: PMC3583218 DOI: 10.1002/adfm.201100946] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Natriuretic peptide receptor A (NPRA), the receptor for the cardiac hormone atrial natriuretic peptide (ANP), is expressed abundantly on cancer cells and disruption of ANP-NPRA signaling inhibits tumor burden and metastasis. Since antagonists of NPRA signaling have not provided reproducible results, we reasoned that a synthetic neutralizing antibody to ANP, which has high selectivity and affinity for ANP, could be used to regulate ANP levels and attenuate NPRA signaling. In this study, we prepared molecularly imprinted polymer nanoparticles (MIPNPs) for ANP using a short peptide of ANP as the template and determined their binding affinity and selectivity. The MIPNPs were prepared by precipitation polymerization using NH2-SLRRSS-CONH2, which is a short peptide from ANP as template, methacrylic acid (MAA) and N-isopropylacrylamide (NIPAm) as functional monomers, bis-acrylamide (BIS) as crosslinker. The average diameter of MIPNPs and non-imprinted nanoparticles (NIPNPs) in water is 215.8 ±4.6 nm and 197.7±3.1 nm respectively. The binding isotherm analysis showed that MIPNPs have a much higher binding affinity for template peptide and ANP than NIPNPs. Scatchard analysis gave an equilibrium dissociation constant, Kd of 7.3 μM with a binding capacity 106.7 μmol/g for template peptide and Kd of 7.9 μM with a binding capacity of 36.0 μmol/g for ANP. Measurements of binding kinetics revealed that MIPNPs reach protein adsorption equilibrium in 30 min. MIPNPs found to have high specificity for ANP with little affinity for BSA or scrambled ANP peptide. MIPNPs also recognized and adsorbed ANP in cell culture media spiked with ANP and human plasma. Taken together, these results indicate that MIPNPs have high affinity and selectivity for ANP and can be used as a synthetic antibody for modulating ANP-NPRA signaling in cancers.
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Affiliation(s)
- Chunyan Wang
- Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Blvd
- Nanomedicine Research Center, University of South Florida, 12901 Bruce B. Downs Blvd
| | - Mark Howell
- Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Blvd
| | - Payal Raulji
- Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Blvd
| | - Yvonne Davis
- Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Blvd
- Nanomedicine Research Center, University of South Florida, 12901 Bruce B. Downs Blvd
| | - Subhra Mohapatra
- Department of Molecular Medicine, University of South Florida, 12901 Bruce B. Downs Blvd
- Nanomedicine Research Center, University of South Florida, 12901 Bruce B. Downs Blvd
- James A Haley VA Hospital, 12902 Bruce B. Downs Blvd., Tampa, FL, 33612
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Liu Y, Pressly ED, Abendschein DR, Hawker CJ, Woodard GE, Woodard PK, Welch MJ. Targeting angiogenesis using a C-type atrial natriuretic factor-conjugated nanoprobe and PET. J Nucl Med 2011; 52:1956-63. [PMID: 22049461 PMCID: PMC4255943 DOI: 10.2967/jnumed.111.089581] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED Sensitive, specific, and noninvasive detection of angiogenesis would be helpful in discovering new strategies for the treatment of cardiovascular diseases. Recently, we reported the (64)Cu-labeled C-type atrial natriuretic factor (CANF) fragment for detecting the upregulation of natriuretic peptide clearance receptor (NPR-C) with PET on atherosclerosis-like lesions in an animal model. However, it is unknown whether NPR-C is present and overexpressed during angiogenesis. The goal of this study was to develop a novel CANF-integrated nanoprobe to prove the presence of NPR-C and offer sensitive detection with PET during development of angiogenesis in mouse hind limb. METHODS We prepared a multifunctional, core-shell nanoparticle consisting of DOTA chelators attached to a poly(methyl methacrylate) core and CANF-targeting moieties attached to poly(ethylene glycol) chain ends in the shell of the nanoparticle. Labeling of this nanoparticle with (64)Cu yielded a high-specific-activity nanoprobe for PET imaging NPR-C receptor in a mouse model of hind limb ischemia-induced angiogenesis. Histology and immunohistochemistry were performed to assess angiogenesis development and NPR-C localization. RESULTS (15)O-H(2)O imaging showed blood flow restoration in the previously ischemic hind limb, consistent with the development of angiogenesis. The targeted DOTA-CANF-comb nanoprobe showed optimized pharmacokinetics and biodistribution. PET imaging demonstrated significantly higher tracer accumulation for the targeted DOTA-CANF-comb nanoprobe than for either the CANF peptide tracer or the nontargeted control nanoprobe (P < 0.05, both). Immunohistochemistry confirmed NPR-C upregulation in the angiogenic lesion with colocalization in both endothelial and smooth muscle cells. PET and immunohistochemistry competitive receptor blocking verified the specificity of the targeted nanoprobe to NPR-C receptor. CONCLUSION As evidence of its translational potential, this customized DOTA-CANF-comb nanoprobe demonstrated superiority over the CANF peptide alone for imaging NPR-C receptor in angiogenesis.
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Affiliation(s)
- Yongjian Liu
- Department of Radiology, Washington University, St. Louis, Missouri
| | - Eric D. Pressly
- Department of Materials, Chemistry, and Biochemistry, University of California, Santa Barbara, California
| | | | - Craig J. Hawker
- Department of Materials, Chemistry, and Biochemistry, University of California, Santa Barbara, California
| | - Geoffrey E. Woodard
- Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | | | - Michael J. Welch
- Department of Radiology, Washington University, St. Louis, Missouri
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Wang X, Raulji P, Mohapatra SS, Patel R, Hellermann G, Kong X, Vera PL, Meyer-Siegler KL, Coppola D, Mohapatra S. Natriuretic peptide receptor a as a novel target for prostate cancer. Mol Cancer 2011; 10:56. [PMID: 21586128 PMCID: PMC3121714 DOI: 10.1186/1476-4598-10-56] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 05/17/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The receptor for the cardiac hormone atrial natriuretic peptide (ANP), natriuretic peptide receptor A (NPRA), is expressed in cancer cells, and natriuretic peptides have been implicated in cancers. However, the direct role of NPRA signaling in prostate cancer remains unclear. RESULTS NPRA expression was examined by western blotting, RT-PCR and immunohistochemistry. NPRA was downregulated by transfection of siRNA, shRNA and NPRA inhibitor (iNPRA). Antitumor efficacy of iNPRA was tested in mice using a TRAMP-C1 xenograft. Here, we demonstrated that NPRA is abundantly expressed on tumorigenic mouse and human prostate cells, but not in nontumorigenic prostate epithelial cells. NPRA expression showed positive correlation with clinical staging in a human PCa tissue microarray. Down-regulation of NPRA by siNPRA or iNPRA induced apoptosis in PCa cells. The mechanism of iNPRA-induced anti-PCa effects was linked to NPRA-induced expression of macrophage migration inhibitory factor (MIF), a proinflammatory cytokine over-expressed in PCa and significantly reduced by siNPRA. Prostate tumor cells implanted in mice deficient in atrial natriuretic peptide receptor A (NPRA-KO) failed to grow, and treatment of TRAMP-C1 xenografts with iNPRA reduced tumor burden and MIF expression. Using the TRAMP spontaneous PCa model, we found that NPRA expression correlated with MIF expression during PCa progression. CONCLUSIONS Collectively, these results suggest that NPRA promotes PCa development in part by regulating MIF. Our findings also suggest that NPRA is a potential prognostic marker and a target for PCa therapy.
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Affiliation(s)
- Xiaoqin Wang
- Department of Molecular Medicine, University of South Florida, Tampa, FL 33612, USA
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Abstract
Self-renewal and pluripotency of embryonic stem (ES) cells are maintained by several signaling cascades and by expression of intrinsic factors, such as Oct4, Nanog and Sox2. The mechanism regulating these signaling cascades in ES cells is of great interest. Recently, we have demonstrated that natriuretic peptide receptor A (NPR-A), a specific receptor for atrial and brain natriuretic peptides (ANP and BNP, respectively), is expressed in pre-implantation embryos and in ES cells. Here, we examined whether NPR-A is involved in the maintenance of ES cell pluripotency. RNA interference-mediated knockdown of NPR-A resulted in phenotypic changes, indicative of differentiation, downregulation of pluripotency factors (such as Oct4, Nanog and Sox2) and upregulation of differentiation genes. NPR-A knockdown also resulted in a marked downregulation of phosphorylated Akt. Furthermore, NPR-A knockdown induced accumulation of ES cells in the G1 phase of the cell cycle. Interestingly, we found that ANP was expressed in self-renewing ES cells, whereas its level was reduced after ES cell differentiation. Treatment of ES cells with ANP upregulated the expression of Oct4, Nanog and phosphorylated Akt, and this upregulation depended on NPR-A signaling, because it was completely reversed by pretreatment with either an NPR-A antagonist or a cGMP-dependent protein kinase inhibitor. These findings provide a novel role for NPR-A in the maintenance of self-renewal and pluripotency of ES cells.
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Affiliation(s)
- E M Abdelalim
- Molecular Neuroscience Research Center, Shiga University of Medical Science, Setatsukinowa-cho, Otsu, Shiga 520-2192, Japan.
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Abstract
PURPOSE OF REVIEW Production of cyclic guanosine monophosphate (cGMP) by guanylate cyclase is of critical importance to gastrointestinal physiology. Tight regulation of cGMP concentration is necessary for proper intestinal secretion and intestinal epithelial cell proliferative and apoptotic homeostasis. This review focuses on recent work detailing the role of a subset of transmembrane guanylate cyclases in the pathophysiology of intestinal secretory and motility disorders and intestinal epithelial cell transformation. Also considered is the potential for therapeutic manipulation of intestinal guanylate cyclase/cGMP signaling for the correction of chronic constipation and gastrointestinal cancer. RECENT FINDINGS Recent work in mice and humans suggests a role for transmembrane guanylate cyclases in intestinal fluid secretion as well as hormonal enteric-renal signaling which mediates postprandial natriuresis. Transmembrane guanylate cyclases are also important in gastrointestinal transit rate and motility. Ongoing clinical trials have found that guanylate cyclase activating peptides are safe and effective in the treatment of constipation-predominant irritable bowel syndrome and chronic constipation. In addition, accumulating evidence indicates that membrane-associated guanylate cyclase receptors regulate intestinal epithelial cell homeostatic proliferation and apoptosis as well as gastrointestinal malignancy. The anticancer activity of cGMP signaling in animal studies suggests additional therapeutic applications for guanylate cyclase agonists. SUMMARY Progress toward understanding gastrointestinal transmembrane guanylate cyclase/cGMP physiology has recently accelerated due to definitive in-vitro studies and work using gene-targeted animal models and has facilitated the development of safe and effective drugs designed to regulate cGMP production in the intestine. Current work should be directed toward a detailed understanding of cGMP effector pathways and the manner in which subcellular concentrations of cGMP regulate them to influence intestinal health and disease.
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Regulation and therapeutic targeting of peptide-activated receptor guanylyl cyclases. Pharmacol Ther 2010; 130:71-82. [PMID: 21185863 DOI: 10.1016/j.pharmthera.2010.12.005] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 12/13/2010] [Indexed: 02/06/2023]
Abstract
Cyclic GMP is a ubiquitous second messenger that regulates a wide array of physiologic processes such as blood pressure, long bone growth, intestinal fluid secretion, phototransduction and lipolysis. Soluble and single-membrane-spanning enzymes called guanylyl cyclases (GC) synthesize cGMP. In humans, the latter group consists of GC-A, GC-B, GC-C, GC-E and GC-F, which are also known as NPR-A, NPR-B, StaR, Ret1-GC and Ret2-GC, respectively. Membrane GCs are activated by peptide ligands such as atrial natriuretic peptide (ANP), B-type natriuretic peptide (BNP), C-type natriuretic peptide (CNP), guanylin, uroguanylin, heat stable enterotoxin and GC-activating proteins. Nesiritide and carperitide are clinically approved peptide-based drugs that activate GC-A. CD-NP is an experimental heart failure drug that primarily activates GC-B but also activates GC-A at high concentrations and is resistant to degradation. Inactivating mutations in GC-B cause acromesomelic dysplasia type Maroteaux dwarfism and chromosomal mutations that increase CNP concentrations are associated with Marfanoid-like skeletal overgrowth. Pump-based CNP infusions increase skeletal growth in a mouse model of the most common type of human dwarfism, which supports CNP/GC-B-based therapies for short stature diseases. Linaclotide is a peptide activator of GC-C that stimulates intestinal motility and is in late-stage clinical trials for the treatment of chronic constipation. This review discusses the discovery of cGMP, guanylyl cyclases, the general characteristics and therapeutic applications of GC-A, GC-B and GC-C, and emphasizes the regulation of transmembrane guanylyl cyclases by phosphorylation and ATP.
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Schönrath K, Pan W, Klein-Szanto AJ, Braunewell KH. Involvement of VILIP-1 (visinin-like protein) and opposite roles of cyclic AMP and GMP signaling in in vitro cell migration of murine skin squamous cell carcinoma. Mol Carcinog 2010; 50:319-33. [PMID: 21480386 DOI: 10.1002/mc.20707] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 09/02/2010] [Accepted: 10/20/2010] [Indexed: 11/09/2022]
Abstract
VILIP-1 (visinin-like protein 1) is downregulated in various human squamous cell carcinoma (SCC). In a mouse skin SCC model VILIP-1 expression is reduced in aggressive tumor cells, accompanied by reduced cAMP levels. Overexpression of VILIP-1 in aggressive SCC cells led to enhanced cAMP production, in turn causing a reduction in invasive properties. Moreover, in primary neurons and neuronal tumor lines VILIP-1 enhanced cGMP signaling. Here, we set out to determine whether and how cAMP and cGMP signaling contribute to the VILIP-1 effect on enhanced SCC model cell migration, and thus most likely invasiveness in vivo. We found stronger increase in cGMP levels in aggressive, VILIP-1-negative SCC cells following stimulation of guanylyl cyclases NPR-A and -B with the natriuretic peptides ANP and CNP, respectively. Incubation with ANP or 8Br-cGMP to increase cGMP levels further enhanced the migration capacity of aggressive cells, whereas cell adhesion was unaffected. Increased cGMP was caused by elevated expression levels of NPR-A and -B. However, the expression level of VILIP-1 did not affect cGMP signaling and guanylyl cyclase expression in SCC. In contrast, VILIP-1 led to reduced migration of aggressive SCC cells depending on cAMP levels as shown by use of adenylyl cyclase (AC) inhibitor 2',3'-dideoxyadenosine. Involvement of cAMP-effectors PKA and EPAC play a role downstream of AC activation. VILIP-1-positive and -negative cells did not differ in mRNA expression of ACs, but an effect on enhanced protein expression and membrane localization of ACs was shown to underlie enhancement of cAMP production and, thus, reduction in cell migration by VILIP-1.
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Affiliation(s)
- Katharina Schönrath
- Signal Transduction Research Group, Institute for Neurophysiology, Charité, Universitätsmedizin Berlin, Berlin, Germany
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Thornton SN. Angiotensin inhibition and malignancies: a question of hydration. J Hum Hypertens 2009; 24:226. [PMID: 20033073 DOI: 10.1038/jhh.2009.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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You H, Laychock SG. Atrial natriuretic peptide promotes pancreatic islet beta-cell growth and Akt/Foxo1a/cyclin D2 signaling. Endocrinology 2009; 150:5455-65. [PMID: 19837876 DOI: 10.1210/en.2009-0468] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The adult differentiated insulin-secreting pancreatic islet beta-cell experiences slow growth. This study shows that atrial natriuretic peptide (ANP) stimulates cell proliferation and [(3)H]thymidine incorporation in INS-1E glucose-sensitive rat beta-cell line cells and isolated rat islet DNA. In addition, cGMP, the second messenger of natriuretic peptide receptors (NPR) A and B, stimulated islet DNA biosynthesis. The NPR-A receptor was expressed in INS-1E cells and islets. ANP-stimulated INS-1E cell DNA biosynthesis was blocked by preincubation with LY294002 (50 microM), an inhibitor of phosphatidylinositol 3'-kinase (PI3K). An indicator of cell cycle progression, cyclin D2 mRNA was increased by 2- to 3-fold in ANP- or 8-Br-cGMP-treated INS-1E cells and islets, and these responses were inhibited by LY294002. ANP and 8-Br-cGMP stimulated the phosphorylation of Akt and Foxo1a in INS-1E cells and islets, and LY294002 inhibited these responses. In contrast, ANP reduced the levels of phospho-ERK in INS-1E cells. Pancreas duodenum homeobox-1 (PDX-1) is essential for pancreas development, insulin production, and glucose homeostasis, and ANP increased PDX-1 mRNA levels by 2- to 3-fold in INS-1E cells and islets. The levels of glucokinase mRNA in islets and INS-1E cells were also increased in response to ANP. The evidence suggests that pancreatic beta-cell NPR-A stimulation results in activation of a growth-promoting signaling pathway that includes PI3K/Akt/Foxo1a/cyclin D2. These data support the conclusion that the activation of Akt by ANP or 8-Br-cGMP promotes cyclin D2, PDX-1, and glucokinase transcription by phosphorylating and restricting Foxo1a activity.
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Affiliation(s)
- Hui You
- Department of Pharmacology and Toxicology, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York 14214, USA
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Martel G, Hamet P, Tremblay J. Central role of guanylyl cyclase in natriuretic peptide signaling in hypertension and metabolic syndrome. Mol Cell Biochem 2009; 334:53-65. [PMID: 19937369 DOI: 10.1007/s11010-009-0326-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Accepted: 11/04/2009] [Indexed: 01/05/2023]
Abstract
Studied for nearly 30 years for its ability to control many parameters, such as vascular smooth muscle cell relaxation, heart fibrosis, and kidney function, the natriuretic peptide (NP) system is now considered to be a key element in several other major metabolic pathways. After stimulation by NPs, natriuretic peptide receptors (NPR) convert GTP to the second messenger cGMP. In addition to its vasodilatory effects and natriuretic and diuretic functions, cGMP has been positively associated with fat cell function, apoptosis, and NPR expression/activity modulation. The NP system is also closely linked to metabolic syndrome (MetS) progression and obesity control. A new era is now on its way targeting the NP system to not only treat high blood pressure, but to also assist in the fight against the obesity pandemic. Here, we summarize recent data on the role of NPs in hypertension and MetS.
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Affiliation(s)
- G Martel
- Laboratory of Cellular Biology of Hypertension, Centre for Ecogenomic Models of Human Diseases, Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), Technopôle Angus, 2901 rue Rachel est, bureau 314, Montreal, QC H1W 4A4, Canada
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Abstract
PURPOSE OF REVIEW Metastatic medullary thyroid cancer (MTC) is an incurable disease once metastasis becomes unresectable. Many therapeutic drugs and methods have been tried to circumvent this difficulty. We review currently published treatments and hope for future developments of more effective treatment methods. RECENT FINDINGS Motesanib, vandetanib, axitinib (tyrosine kinase inhibitors), and XL184 (multikinase inhibitor) have been shown to achieve partial response or stable disease state of metastatic MTC. Sunitinib and sorafenib, currently available tyrosine kinase inhibitors, can also be tried for patients with MTC. However, these medications are not curative and do not improve survival rate. Only carcinoembryonic antigen-I-iodine-based radioimmunotherapy improved survival of a subset of patients with a very aggressive type of MTC. Drugs currently available for possible use of MTC treatment include bortezomib (proteasome inhibitor), valproic acid (histone deacetylase inhibitor), capecitabine (5-fluorouracil prodrug), and indomethacin (NSAID), although clinical studies have yet to be done. Cardiac natriuretic hormones and an extract of the plant Cautleya gracilis are new agents to be studied for MTC. SUMMARY Kinase inhibitors are the first drugs showing some efficacy in MTC. To improve survival, unconventional drugs or other therapies with or without kinase inhibitors need to be considered.
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Affiliation(s)
- Masahiro Sugawara
- Endocrinology and Diabetes Division, Veterans Affairs Greater Los Angeles Medical Center, Department of Medicine, University of California at Los Angeles, Los Angeles, CA, USA.
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