1
|
Zeng R, Xiong X. Effect of NMB-regulated ERK1/2 and p65 signaling pathway on proliferation and apoptosis of cervical cancer. Pathol Res Pract 2022; 238:154104. [PMID: 36095918 DOI: 10.1016/j.prp.2022.154104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 12/24/2022]
Abstract
Aberrant expression of Neuromedin B (NMB) is associated with the malignant progression of cancer, such as breast cancer, lung cancer and glioma. However, the role of NMB in cervical cancer remains unclear. The present study found that NMB and its receptor NMBR are aberrantly expressed in cervical cancer. NMB activates ERK1/2 and NF-κB signaling pathways, which promote the proliferation of cervical cancer cells and increase the expression of tumor necrosis factor α (TNF-α). The downregulation of NMBR by the specific inhibitor, PD168368, abrogates proliferation and promotes apoptosis of cervical cancer cells. In addition, the NMB/NMBR signaling axis mediates the promoting effect of cancer-associated adipocytes on cervical cancer progression. These findings demonstrate the potential role of NMB/NMBR-regulated ERK1/2 and p65 signaling pathway in cervical cancer progression, which provide new opportunities to diagnose and treat cervical cancer.
Collapse
Affiliation(s)
- Ruijiang Zeng
- The First Clinical Medical College, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xiangyang Xiong
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi 330006, China; Province Key Laboratory of Tumor Pathogens and Molecular Pathology, Nanchang University, Nanchang, Jiangxi 330006, China.
| |
Collapse
|
2
|
Maumus M, Fonteneau G, Ruiz M, Assou S, Boukhaddaoui H, Pastoureau P, De Ceuninck F, Jorgensen C, Noel D. Neuromedin B promotes chondrocyte differentiation of mesenchymal stromal cells via calcineurin and calcium signaling. Cell Biosci 2021; 11:183. [PMID: 34663442 PMCID: PMC8525028 DOI: 10.1186/s13578-021-00695-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 09/30/2021] [Indexed: 11/11/2022] Open
Abstract
Background Articular cartilage is a complex tissue with poor healing capacities. Current approaches for cartilage repair based on mesenchymal stromal cells (MSCs) are often disappointing because of the lack of relevant differentiation factors that could drive MSC differentiation towards a stable mature chondrocyte phenotype. Results We used a large-scale transcriptomic approach to identify genes that are modulated at early stages of chondrogenic differentiation using the reference cartilage micropellet model. We identified several modulated genes and selected neuromedin B (NMB) as one of the early and transiently modulated genes. We found that the timely regulated increase of NMB was specific for chondrogenesis and not observed during osteogenesis or adipogenesis. Furthermore, NMB expression levels correlated with the differentiation capacity of MSCs and its inhibition resulted in impaired chondrogenic differentiation indicating that NMB is required for chondrogenesis. We further showed that NMB activated the calcineurin activity through a Ca2+-dependent signaling pathway. Conclusion NMB is a newly described chondroinductive bioactive factor that upregulates the key chondrogenic transcription factor Sox9 through the modulation of Ca2+ signaling pathway and calcineurin activity. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13578-021-00695-1.
Collapse
Affiliation(s)
- Marie Maumus
- IRMB, Univ Montpellier, INSERM, Montpellier, France
| | | | - Maxime Ruiz
- IRMB, Univ Montpellier, INSERM, Montpellier, France
| | - Said Assou
- IRMB, Univ Montpellier, INSERM, Montpellier, France
| | - Hassan Boukhaddaoui
- INM, University of Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - Philippe Pastoureau
- Institut de Recherches Servier, Center for Therapeutic Innovation, Immuno-Inflammatory Disease, Croissy-sur-Seine, France
| | - Frédéric De Ceuninck
- Institut de Recherches Servier, Center for Therapeutic Innovation, Immuno-Inflammatory Disease, Croissy-sur-Seine, France
| | - Christian Jorgensen
- IRMB, Univ Montpellier, INSERM, Montpellier, France.,Clinical Immunology and Osteoarticular Disease Therapeutic Unit, Department of Rheumatology, CHU Montpellier, Montpellier, France
| | - Danièle Noel
- IRMB, Univ Montpellier, INSERM, Montpellier, France. .,Clinical Immunology and Osteoarticular Disease Therapeutic Unit, Department of Rheumatology, CHU Montpellier, Montpellier, France.
| |
Collapse
|
3
|
Zhou HC, Ren J, Lin Y, Gao D, Hu D, Yin T, Qiu C, Miao X, Liu C, Liu X, Zheng H, Zheng R, Sheng Z. Intravital NIR-II three-dimensional photoacoustic imaging of biomineralized copper sulfide nanoprobes. J Mater Chem B 2021; 9:3005-3014. [PMID: 33704309 DOI: 10.1039/d0tb03010d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoacoustic (PA) imaging with functional nanoprobes in the second near-infrared region (NIR-II, 1000-1700 nm) has aroused much interest due to its deep tissue penetration and high maximum laser permissible exposure. However, most NIR-II PA imaging is performed using the two-dimensional (2D) imaging modality, which impedes the comprehension of the in vivo biodistribution, angiography and molecular-targeted performance of NIR-II nanoprobes (NPs). Herein, we report the systematic monitoring of biomineralized copper sulfide (CuS) NPs, typical NIR-II NPs, in mouse models by employing NIR-II three-dimensional (3D) PA imaging. The advanced imaging modality provides dynamic information about the 3D biodistribution and metabolic pathway of CuS NPs. We also achieved contrast-enhanced 3D PA imaging of abdominal and cerebral vessels at a high signal-to-background ratio. Moreover, the tumor-targeted CuS NPs conjugated with the bombesin peptide endowed NIR-II 3D PA with superior performance in imaging orthotopic tumors both deep in the prostate and in the brain beneath the intact scalp and skull. Our results highlight the potential of NIR-II 3D PA imaging for the evaluation of the in vivo behavior of NPs, thus providing a promising strategy for screening NPs in clinical translational studies.
Collapse
Affiliation(s)
- Hui-Chao Zhou
- Department of Ultrasound, Laboratory of Novel Optoacoustic/Ultrasonic imaging, Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, P. R. China.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Ma Z, Guo J, Zhang Y, Zhang Y, Zhang M, Zong R, Chen F, Zhang J. Neuromedin B regulates steroidogenesis, cell viability and apoptosis in rabbit Leydig cells. Gen Comp Endocrinol 2020; 288:113371. [PMID: 31857076 DOI: 10.1016/j.ygcen.2019.113371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/14/2019] [Accepted: 12/14/2019] [Indexed: 11/24/2022]
Abstract
Mammalian bombesin-related peptide, neuromedin B (NMB) action is mediated by its receptor (NMBR), and NMB/NMBR system plays a major role in regulating hormone secretions, reproduction and cell growth. Here we report the functions of NMB in regulating steroidogenesis (testosterone synthesis), cell viability and apoptosis. The primary rabbit Leydig cells were employed as the paradigm for this research. We initially confirmed that NMBR is distributed in Leydig cells of rabbit testis, and a certain dose of NMB could increase the secretion of testosterone in primary cultured rabbit Leydig cells. Subsequently, the accumulated NMBR, StAR, CYP11A1, 3β-HSD and PKC protein could be induced by a certain dose of NMB in Leydig cells. Moreover, we found that NMB could decrease the cell viability, and decreased the expression of PCNA protein in Leydig cells; meanwhile, except for 100 nM, other doses of NMB could suppress the cell apoptosis, and regulate Caspase-3 protein expression in Leydig cells, respectively. These results identify that NMB may be a key factor in regulating testosterone synthesis through taking part in NMBR/PKC/steroidogenesis signaling pathway, as well as the cell viability and proliferation in rabbit Leydig cells.
Collapse
Affiliation(s)
- Zhiyu Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| | - Junpei Guo
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Ying Zhang
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Youwen Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Miao Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Rongling Zong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Fenglei Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
| | - Jinlong Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| |
Collapse
|
5
|
Rametta R, Dongiovanni P, Baselli GA, Pelusi S, Meroni M, Fracanzani AL, Busti F, Castagna A, Scarlini S, Corradini E, Pietrangelo A, Girelli D, Fargion S, Valenti L. Impact of natural neuromedin-B receptor variants on iron metabolism. Am J Hematol 2020; 95:167-177. [PMID: 31724192 DOI: 10.1002/ajh.25679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 10/18/2019] [Accepted: 11/11/2019] [Indexed: 12/27/2022]
Abstract
Iron overload heritability remains partly unexplained. By performing whole exome sequencing in three patients with a clinical phenotype of hemochromatosis not accounted by known genetic risk factors, we identified in all patients rare variants predicted to alter activity of Neuromedin-B receptor (NMBR). Coding NMBR mutations were enriched in 129 patients with hereditary hemochromatosis or iron overload phenotype, as compared to ethnically matched controls, including 100 local healthy blood donors and 1000Genomes project participants (15.5% vs 5%, P = .0038 at burden test), and were associated with higher transferrin saturation in regular blood donors (P = .04). Consistently, in 191 patients with nonalcoholic fatty liver, the most common low-frequency p.L390 M variant was independently associated with higher ferritin (P = .03). In 58 individuals, who underwent oral iron challenge, carriage of the p.L390 M variant was associated with higher transferrin saturation and lower hepcidin release. Furthermore, the circulating concentration of the natural NMBR ligand, Neuromedin-B, was reduced in response to iron challenge. It was also decreased in individuals carrying the p.L390 M variant and with hemochromatosis in parallel with increased transferrin saturation. In mice, Nmbr was induced by chronic dietary iron overload in the liver, gut, pancreas, spleen, and skeletal muscle, while Nmb was downregulated in gut, pancreas and spleen. Finally, Nmb amplified holo-transferrin dependent induction of hepcidin in primary mouse hepatocytes, which was associated with Jak2 induction and abolished by the NMBR antagonist PD168368. In conclusion, NMBR natural variants were enriched in patients with iron overload, and associated with facilitated iron absorption, possibly related to a defect of iron-induced hepcidin release.
Collapse
Affiliation(s)
- Raffaela Rametta
- General Medicine and Metabolic DiseasesFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
| | - Paola Dongiovanni
- General Medicine and Metabolic DiseasesFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
| | - Guido A. Baselli
- Department of Pathophysiology and TransplantationUniversità degli Studi di Milano Milan Italy
| | - Serena Pelusi
- Department of Pathophysiology and TransplantationUniversità degli Studi di Milano Milan Italy
- Translational Medicine – Department of Transfusion Medicine and HematologyFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
| | - Marica Meroni
- General Medicine and Metabolic DiseasesFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
| | - Anna L. Fracanzani
- General Medicine and Metabolic DiseasesFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
- Department of Pathophysiology and TransplantationUniversità degli Studi di Milano Milan Italy
| | - Fabiana Busti
- Department of MedicineSection of Internal Medicine, Azienda Ospedaliera Universitaria Integrata Verona, University of Verona Verona Italy
| | - Annalisa Castagna
- Department of MedicineSection of Internal Medicine, Azienda Ospedaliera Universitaria Integrata Verona, University of Verona Verona Italy
| | - Stefania Scarlini
- Internal Medicine and Center for Hemochromatosis and Heredometabolic Liver DiseasesAzienda Ospedaliera Universitaria di Modena, University of Modena and Reggio Emilia Modena Italy
| | - Elena Corradini
- Internal Medicine and Center for Hemochromatosis and Heredometabolic Liver DiseasesAzienda Ospedaliera Universitaria di Modena, University of Modena and Reggio Emilia Modena Italy
| | - Antonello Pietrangelo
- Internal Medicine and Center for Hemochromatosis and Heredometabolic Liver DiseasesAzienda Ospedaliera Universitaria di Modena, University of Modena and Reggio Emilia Modena Italy
| | - Domenico Girelli
- Department of MedicineSection of Internal Medicine, Azienda Ospedaliera Universitaria Integrata Verona, University of Verona Verona Italy
| | - Silvia Fargion
- General Medicine and Metabolic DiseasesFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
- Department of Pathophysiology and TransplantationUniversità degli Studi di Milano Milan Italy
| | - Luca Valenti
- Department of Pathophysiology and TransplantationUniversità degli Studi di Milano Milan Italy
- Translational Medicine – Department of Transfusion Medicine and HematologyFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
| |
Collapse
|
6
|
Pooja D, Gunukula A, Gupta N, Adams DJ, Kulhari H. Bombesin receptors as potential targets for anticancer drug delivery and imaging. Int J Biochem Cell Biol 2019; 114:105567. [DOI: 10.1016/j.biocel.2019.105567] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 07/02/2019] [Accepted: 07/05/2019] [Indexed: 12/24/2022]
|
7
|
Ma Z, Zhang Y, Su J, Yang S, Qiao W, Li X, Lei Z, Cheng L, An N, Wang W, Feng Y, Zhang J. Effects of neuromedin B on steroidogenesis, cell proliferation and apoptosis in porcine Leydig cells. J Mol Endocrinol 2018; 61:13-23. [PMID: 29632025 DOI: 10.1530/jme-17-0242] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 04/09/2018] [Indexed: 02/05/2023]
Abstract
Neuromedin B (NMB), a mammalian bombesin-related peptide, has numerous physiological functions, including regulating hormone secretions, cell growth, and reproduction, by binding to its receptor (NMBR). In this study, we investigated the effects of NMB on testosterone secretion, steroidogenesis, cell proliferation, and apoptosis in cultured primary porcine Leydig cells. NMBR was mainly expressed in the Leydig cells of porcine testes, and a specific dose of NMB significantly promoted the secretion of testosterone in the primary Leydig cells; moreover, NMB increased the expression of mRNA and/or proteins of NMBR and steroidogenic mediators (steroidogenic acute regulatory (STAR), CYP11A1, and HSD3B1) in the Leydig cells. In addition, specific doses of NMB promoted the proliferation of Leydig cells and increased the expression of proliferating cell nuclear antigen and Cyclin B1 proteins, while suppressing Leydig cell apoptosis and decreasing BAX and Caspase-3 protein expression. These results suggest that the NMB/NMBR system might play an important role in regulating boar reproductive function by modulating steroidogenesis and/or cell growth in porcine Leydig cells.
Collapse
Affiliation(s)
- Zhiyu Ma
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
- College of Veterinary MedicineYangzhou University, Yangzhou, People's Republic of China
| | - Ying Zhang
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Juan Su
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Sheng Yang
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Wenna Qiao
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Xiang Li
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Zhihai Lei
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Ling Cheng
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Na An
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Wenshao Wang
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Yanyan Feng
- College of Veterinary MedicineNanjing Agricultural University, Nanjing, People's Republic of China
| | - Jinlong Zhang
- College of Veterinary MedicineYangzhou University, Yangzhou, People's Republic of China
| |
Collapse
|
8
|
Park HJ, Kim MK, Choi KS, Jeong JW, Bae SK, Kim HJ, Bae MK. Neuromedin B receptor antagonism inhibits migration, invasion, and epithelial-mesenchymal transition of breast cancer cells. Int J Oncol 2016; 49:934-42. [PMID: 27571778 DOI: 10.3892/ijo.2016.3590] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/02/2016] [Indexed: 11/05/2022] Open
Abstract
Neuromedin B (NMB) acts as an autocrine growth factor and a pro-angiogenic factor. Its receptor, NMB receptor (NMB-R), is overexpressed in solid tumors. In the present study, we showed that an NMB-R antagonist, PD168368, suppresses migration and invasion of the human breast cancer cell line MDA-MB-231. In addition, PD168368 reduced epithelial-mesenchymal transition (EMT) of breast cancer cells by E-cadherin upregulation and vimentin downregulation. Moreover, we found that PD168368 potently inhibits in vivo metastasis of breast cancer. Taken together, these findings suggest that NMB-R antagonism may be an alternative approach to prevent breast cancer metastasis, and targeting NMB-R may provide a novel therapeutic strategy for breast cancer treatment.
Collapse
Affiliation(s)
- Hyun-Joo Park
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Mi-Kyoung Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Kyu-Sil Choi
- Molecular and Cellular Imaging Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul 136‑710, Republic of Korea
| | - Joo-Won Jeong
- School of Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - Soo-Kyung Bae
- Department of Dental Pharmacology, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Hyung Joon Kim
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Republic of Korea
| | - Moon-Kyoung Bae
- Department of Oral Physiology, School of Dentistry, Pusan National University, Yangsan 626-870, Republic of Korea
| |
Collapse
|
9
|
Park HJ, Kim MK, Kim SR, Bae SK, Bae MK. Hypoxia regulates the expression of the neuromedin B receptor through a mechanism dependent on hypoxia-inducible factor-1α. PLoS One 2013; 8:e82868. [PMID: 24349381 DOI: 10.1371/journal.pone.0082868] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 11/06/2013] [Indexed: 12/18/2022] Open
Abstract
The neuromedin B receptor (NMB-R), a member of the mammalian bombesin receptor family, is frequently overexpressed in various tumors. In the present study, we found that exposure to hypoxic conditions increases the levels of NMBR mRNA and protein in breast cancer cells, which are tightly regulated by hypoxia-inducible factor-1α (HIF-1α). We confirmed the effect of HIF-1α on NMBR transcription by performing an NMBR promoter-driven reporter assay and then identified a functional hypoxia-responsive element (HRE) in the human NMBR promoter region. Further, the binding of HIF-1α to the NMBR promoter was corroborated by electrophoretic mobility shift and chromatin immunoprecipitation assays, which showed that HIF-1α specifically and directly bound to the NMBR promoter in response to hypoxia. Immunohistochemical analysis of a xenograft and a human breast cancer tissue array revealed a significant correlation between NMB-R and HIF-1α expression. Taken together, our findings indicate that hypoxia induces NMB-R expression through a novel mechanism to regulate HIF-1α expression in breast cancer cells.
Collapse
|
10
|
Moreno P, Mantey SA, Nuche-Berenguer B, Reitman ML, González N, Coy DH, Jensen RT. Comparative pharmacology of bombesin receptor subtype-3, nonpeptide agonist MK-5046, a universal peptide agonist, and peptide antagonist Bantag-1 for human bombesin receptors. J Pharmacol Exp Ther 2013; 347:100-16. [PMID: 23892571 DOI: 10.1124/jpet.113.206896] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Bombesin-receptor-subtype-3 (BRS-3) is an orphan G-protein-coupled receptor of the bombesin (Bn) family whose natural ligand is unknown and which does not bind any natural Bn-peptide with high affinity. It is present in the central nervous system, peripheral tissues, and tumors; however, its role in normal physiology/pathophysiology is largely unknown because of the lack of selective ligands. Recently, MK-5046 [(2S)-1,1,1-trifluoro-2-[4-(1H-pyrazol-1-yl)phenyl]-3-(4-{[1-(trifluoromethyl)cyclopropyl]methyl}-1H-imidazol-2-yl)propan-2-ol] and Bantag-1 [Boc-Phe-His-4-amino-5-cyclohexyl-2,4,5-trideoxypentonyl-Leu-(3-dimethylamino) benzylamide N-methylammonium trifluoroacetate], a nonpeptide agonist and a peptide antagonist, respectively, for BRS-3 have been described, but there have been limited studies on their pharmacology. We studied MK-5046 and Bantag-1 interactions with human Bn-receptors-human bombesin receptor subtype-3 (hBRS-3), gastrin-releasing peptide receptor (GRP-R), and neuromedin B receptor (NMB-R)-and compared them with the nonselective, peptide-agonist [d-Tyr6,βAla11,Phe13,Nle14]Bn-(6-14) (peptide #1). Receptor activation was detected by activation of phospholipase C (PLC), mitogen-activated protein kinase (MAPK), focal adhesion kinase (FAK), paxillin, and Akt. In hBRS-3 cells, the relative affinities were Bantag-1 (1.3 nM) > peptide #1 (2 nM) > MK-5046 (37-160 nM) > GRP, NMB (>10 μM), and the binding-dose-inhibition curves were broad (>4 logs), with Hill coefficients differing significantly from unity. Curve-fitting demonstrated high-affinity (MK-5046, Ki = 0.08 nM) and low-affinity (MK-5046, Ki = 11-29 nM) binding sites. For PLC activation in hBRS-3 cells, the relative potencies were MK-5046 (0.02 nM) > peptide #1 (6 nM) > GRP, NMB, Bantag-1 (>10 μM), and MK-5046 had a biphasic dose response, whereas peptide #1 was monophasic. Bantag-1 was a specific hBRS-3-antagonist. In hBRS-3 cells, MK-5046 was a full agonist for activation of MAPK, FAK, Akt, and paxillin; however, it was a partial agonist for phospholipase A2 (PLA2) activation. The kinetics of activation/duration of action for PLC/MAPK activation of MK-5046 and peptide #1 differed, with peptide #1 causing more rapid stimulation; however, MK-5046 had more prolonged activity. Our study finds that MK-5046 and Bantag-1 have high affinity/selectivity for hBRS-3. The nonpeptide MK-5046 and peptide #1 agonists differ markedly in their receptor coupling, ability to activate different signaling cascades, and kinetics/duration of action. These results show that their hBRS-3 receptor activation is not always concordant and could lead to markedly different cellular responses.
Collapse
Affiliation(s)
- Paola Moreno
- Digestive Diseases Branch (P.M., S.M., B.N.-B., R.T.J.) and Diabetes, Endocrinology, and Obesity Branch (M.L.R.), National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland; Department of Metabolism, Nutrition and Hormones (N.G.), IIS-Fundación Jiménez Díaz, Madrid, Spain; Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain; and Peptide Research Laboratories, Department of Medicine, Tulane Health Sciences Center, New Orleans, Louisiana (D.H.C.)
| | | | | | | | | | | | | |
Collapse
|
11
|
Park HJ, Kim SR, Kim MK, Choi KS, Jang HO, Yun I, Bae SK, Bae MK. Neuromedin B receptor antagonist suppresses tumor angiogenesis and tumor growth in vitro and in vivo. Cancer Lett 2011; 312:117-27. [PMID: 21908103 DOI: 10.1016/j.canlet.2011.08.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 08/05/2011] [Accepted: 08/09/2011] [Indexed: 11/29/2022]
Abstract
Neuromedin B (NMB), a member of the mammalian bombesin-like peptide family, and its receptor were aberrantly expressed in vascularized solid tumors. Here, the NMB receptor (NMB-R) antagonist PD168368 specifically inhibited both NMB-induced in vivo and in vitro angiogenesis. In addition, PD168368 showed growth inhibitory effects on MDA-MB-231 breast cancer cells by inducing cell cycle arrest and apoptosis. Furthermore, PD168368 effectively suppressed tumor growth in a xenograft model of breast tumor in vivo. Overall, NMB-R antagonist exhibited a significant antitumor activity by simultaneously inhibiting neovascularization and cancer cell growth, thereby suggesting that NMB-R could be a potential therapeutic target for cancer treatment.
Collapse
Affiliation(s)
- Hyun-Joo Park
- School of Dentistry, Pusan National University, Yangsan 626-870, South Korea
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Park H, Kim S, Bae S, Choi YK, Bae Y, Kim E, Kim WJ, Jang H, Yun I, Kim Y, Bae M. Neuromedin B induces angiogenesis via activation of ERK and Akt in endothelial cells. Exp Cell Res 2009; 315:3359-69. [PMID: 19703440 DOI: 10.1016/j.yexcr.2009.08.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Revised: 07/20/2009] [Accepted: 08/17/2009] [Indexed: 11/23/2022]
|
13
|
Jensen RT, Battey JF, Spindel ER, Benya RV. International Union of Pharmacology. LXVIII. Mammalian bombesin receptors: nomenclature, distribution, pharmacology, signaling, and functions in normal and disease states. Pharmacol Rev 2008; 60:1-42. [PMID: 18055507 PMCID: PMC2517428 DOI: 10.1124/pr.107.07108] [Citation(s) in RCA: 394] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The mammalian bombesin receptor family comprises three G protein-coupled heptahelical receptors: the neuromedin B (NMB) receptor (BB(1)), the gastrin-releasing peptide (GRP) receptor (BB(2)), and the orphan receptor bombesin receptor subtype 3 (BRS-3) (BB(3)). Each receptor is widely distributed, especially in the gastrointestinal (GI) tract and central nervous system (CNS), and the receptors have a large range of effects in both normal physiology and pathophysiological conditions. The mammalian bombesin peptides, GRP and NMB, demonstrate a broad spectrum of pharmacological/biological responses. GRP stimulates smooth muscle contraction and GI motility, release of numerous GI hormones/neurotransmitters, and secretion and/or hormone release from the pancreas, stomach, colon, and numerous endocrine organs and has potent effects on immune cells, potent growth effects on both normal tissues and tumors, potent CNS effects, including regulation of circadian rhythm, thermoregulation; anxiety/fear responses, food intake, and numerous CNS effects on the GI tract as well as the spinal transmission of chronic pruritus. NMB causes contraction of smooth muscle, has growth effects in various tissues, has CNS effects, including effects on feeding and thermoregulation, regulates thyroid-stimulating hormone release, stimulates various CNS neurons, has behavioral effects, and has effects on spinal sensory transmission. GRP, and to a lesser extent NMB, affects growth and/or differentiation of various human tumors, including colon, prostate, lung, and some gynecologic cancers. Knockout studies show that BB(3) has important effects in energy balance, glucose homeostasis, control of body weight, lung development and response to injury, tumor growth, and perhaps GI motility. This review summarizes advances in our understanding of the biology/pharmacology of these receptors, including their classification, structure, pharmacology, physiology, and role in pathophysiological conditions.
Collapse
Affiliation(s)
- R T Jensen
- Digestive Diseases Branch, National Institute of Diabetes Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA.
| | | | | | | |
Collapse
|
14
|
Ross JW, Ashworth MD, White FJ, Johnson GA, Ayoubi PJ, DeSilva U, Whitworth KM, Prather RS, Geisert RD. Premature estrogen exposure alters endometrial gene expression to disrupt pregnancy in the pig. Endocrinology 2007; 148:4761-73. [PMID: 17640989 DOI: 10.1210/en.2007-0599] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Establishment and maintenance of pregnancy in the pig involve intricate communication between the developing conceptuses and maternal endometrium. Conceptus synthesis and release of estrogen during trophoblastic elongation are essential factors involved with establishing conceptus-uterine communication. The present study identified endometrial changes in gene expression associated with implantation failure and complete pregnancy loss after premature exposure of pregnant gilts to exogenous estrogen. Gilts were treated with either 5 mg estradiol cypionate (EC) or corn oil on d-9 and -10 gestation, which was associated with complete conceptus degeneration by d-17 gestation. Microarray analysis of gene expression revealed that a total of eight, 32, and five genes were up-regulated in the EC endometrium, whereas one, 39, and 16 genes were down-regulated, on d 10, 13, and 15, respectively. Four endometrial genes altered by EC, aldose reductase (AKR1B1), secreted phosphoprotein 1 (SPP1), CD24 antigen (CD24), and neuromedin B (NMB), were evaluated using quantitative RT-PCR and in situ hybridization. In situ hybridization localized gene expression for NMB, CD24, AKR1B1, and SPP1 in the luminal epithelium, and confirmed the expression patterns from RT-PCR analysis. The aberrant expression patterns of endometrial AKR1B1, SPP1, CD24, and NMB 3-4 d after premature estrogen exposure to pregnant gilts may be involved with conceptus attachment failure to the uterine surface epithelium and induction of endometrial responses that disrupt the establishment of a viable pregnancy.
Collapse
Affiliation(s)
- Jason W Ross
- Department of Animal Science, Oklahoma State University, Stillwater, OK 74078, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Abstract
Neuromedin B (NMB) is one of the bombesin (BN)-related peptides in mammals. It was originally purified from pig spinal cords, and it has been shown to be present in central nervous system as well as in gastrointestinal tract. BN and its related peptides have various physiological effects. These include regulation of exocrine and endocrine secretions, smooth muscle contraction, feeding, blood pressure, blood glucose, body temperature and cell growth. NMB exerts its effect by binding to the cell surface receptor. A high affinity receptor, NMB receptor (NMB-R) has been identified. This is a G-protein coupled receptor with seven membrane-spanning regions. Upon agonist binding, several intracellular signaling cascades including phospholipase activation, calcium mobilization and protein kinase C (PKC) activation lead to expression of several genes, DNA synthesis or cellular effects such as secretion. Existence of NMB-R has been demonstrated in several brain regions, notably in olfactory and thalamic regions, and in gastrointestinal tracts. Recent analysis using NMB-R-deficient mice, generated by gene-targeting technique, enables to distinguish functional properties of NMB-R from GRP-R. In this review, molecular characterization, anatomical distribution and pharmacological properties of NMB and NMB-R will be presented. Moreover, physiological roles of NMB and its receptor demonstrated by the analysis of NMB-R-deficient mice will be reported. Comparison with GRP/GRP-R system will provide important information about BN-like peptide systems in mammals.
Collapse
Affiliation(s)
- H Ohki-Hamazaki
- Department of Molecular Neuroscience, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8519, Tokyo, Japan.
| |
Collapse
|
16
|
Abstract
The actions of neuromedin B (NMB), a recently discovered mammalian bombesin-related peptide, are mediated by interacting with a distinct receptor; however, little is known about its cellular basis of action. Recent studies show activation of phospholipase D (PLD) is an important transduction cascade for a number of GI hormones, especially for stimulation of growth and protein sorting. The purpose of the present study was to determine whether activation of the NMB receptor causes activation of PLD and to explore whether this activation was coupled to PLC activation. Rat C6 glioblastoma cells (C6 cells), which contain a low density of native NMB receptors and BALB 3T3 cells stably transfected with rat NMB receptors, were used. NMB caused a 3-fold increase in C6 cells and an 11-fold increase in rNMB-R transfected cells in PLD activity. Increases in PLD activity were rapid and NMB was 100-fold more potent than gastrin-releasing peptide (GRP). NMB caused a half-maximal increase in [Ca2+]i at 0.2 nM, in [3H]IP and PLD at 1 nM, and half-maximal receptor occupation at 1.2 nM. TPA increased PLD dose-dependently with a half-maximal effect at 60 nM. The calcium ionophore A23187 (1 microM) alone did not increase PLD activity but potentiated the effect of TPA. The Ca2+-ATPase inhibitor, thapsigargin, did not affect NMB- or TPA-stimulated PLD activities, although it blocked completely the NMB-induced increase in [Ca2+]i. The PKC inhibitor GF109203X completely abolished TPA-induced PLD activity, however, it only inhibited NMB-induced PLD activity by 20%. The combination of thapsigargin and GF109203X had the same effect as GF109203X alone. These data indicate that NMB receptor activation is coupled to both PLC and PLD. In contrast to a number of other phospholipase C-coupled receptors, NMB receptor stimulated changes in [Ca2+]i do not contribute to PLD activation. Both PKC-dependent and PKC-independent mechanisms are involved in the NMB-stimulated PLD activation with the PKC-independent pathway predominating.
Collapse
Affiliation(s)
- W Hou
- Digestive Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | | | | |
Collapse
|
17
|
Sharif TR, Luo W, Sharif M. Functional expression of bombesin receptor in most adult and pediatric human glioblastoma cell lines; role in mitogenesis and in stimulating the mitogen-activated protein kinase pathway. Mol Cell Endocrinol 1997; 130:119-30. [PMID: 9220028 DOI: 10.1016/s0303-7207(97)00080-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Functional bombesin receptors were identified in most human glioblastoma cell lines examined (approximately 85% of lines). Bombesin stimulated the release of intracellular Ca2+ in human adult (U-373MG, D-247MG, U-118MG, U-251MG, D-245MG, U-105MG, D-54MG, A-172MG, and D-270MG lines) and pediatric (SJ-S6 and SJ-G2 lines) glioblastoma cell lines. Stimulation of the glioblastoma cell line U-373MG with bombesin or gastrin-releasing peptide (GRP) induced mitogenesis, measured by [3H]thymidine incorporation into DNA, and stimulated the tyrosine phosphorylation of the mitogen-activated protein (MAP) kinases (Erk1 and Erk2). The stimulation of the MAP kinase phosphorylation in U-373MG cells was time- and peptide concentration-dependent. Both bombesin and GRP showed similar potencies in stimulation of intracellular Ca2+ release and activation of the MAP kinase pathway in U-373MG cells, whereas neuromedin B (NMB) peptide was less potent. Bombesin and GRP induced the release of cytosolic Ca2+ in a concentration-dependent manner. Because bombesin and GRP were more potent than NMB peptide in increasing the cytosolic Ca2+ levels in U-373MG cells, we concluded that the BB2 subtype (also known as GRP-preferring receptor subtype) of the bombesin receptor is expressed in this cell line. The bombesin receptor antagonist ([Leu13-psi(CH2NH)Leu14]bombesin) blocked bombesin induced Ca2+ release and attenuated MAP kinase activation in U-373MG cells demonstrating that bombesin is acting through a receptor-dependent mechanism. This study indicates that functional bombesin receptors are widely expressed in human glioblastoma cell lines.
Collapse
Affiliation(s)
- T R Sharif
- Department of Molecular Pharmacology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | | | | |
Collapse
|
18
|
Abstract
The effects of adrenomedullin (ADM) on C6 glioma cells were investigated. [125I]ADM bound with high affinity (Kd = 24 nM) to a single class of sites (Bmax = 36,000/cell) in C6 cells. Specific [125I]ADM binding was inhibited with high affinity by ADM (IC50 value of 10 nM) but not ADM(22-52) or pro-adrenomedullin N-terminal 20 peptide (PAMP). By RT-PCR, ADM receptors were detected in C6 cells. ADM elevated cAMP (ED50 value of 10 nM) whereas PAMP and ADM(22-52) did not. ADM stimulated transiently c-fos mRNA in a concentration-dependent manner. Monoclonal antibody G6, which neutralizes ADM, significantly inhibited C6 proliferation and decreased the ability of ADM to elevate c-fos mRNA. These data suggest that ADM is a regulatory peptide of C6 cells.
Collapse
Affiliation(s)
- T W Moody
- Department of Cell and Cancer Biology, National Cancer Institute, Rockville, MD 20850, USA
| | | | | | | | | |
Collapse
|