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Kotwal A, Fingeret A, Knape A, Patel A, Bradford Bell E, Goldner W. Thyroid Cancer Survivorship: Challenges and Opportunities. Endocr Pract 2024:S1530-891X(24)00652-9. [PMID: 39209023 DOI: 10.1016/j.eprac.2024.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 08/14/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024]
Abstract
OBJECTIVE To provide a narrative review of challenges and opportunities in the care of thyroid cancer survivors. METHODS A literature search for full-text articles pertaining to quality of life and survivorship in thyroid cancer was performed and supplemented with personal experience of the authors. RESULTS Despite usually favorable prognosis for most thyroid cancer survivors, health-related quality of life (HRQOL) can be as poor or even worse than that in more aggressive cancers. Worry of cancer recurrence and long-term effects from cancer treatment adversely affects HRQOL in addition to other factors. Disparities and financial hardships among thyroid cancer survivors further affect HRQOL. In addition to monitoring for cancer recurrence and managing hypothyroidism, long-term effects from cancer treatment, including surgical complications, effects from radioactive iodine therapy, a small but increased risk of second primary malignancies, and aging-related health conditions (bone, cardiac, and fertility), need to be monitored for and addressed during survivorship care. CONCLUSION Survivorship care models can vary depending on the specifics of the population served; however, a team-based survivor-centered approach provides the best care to thyroid cancer survivors.
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Affiliation(s)
- Anupam Kotwal
- Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, University of Nebraska Medical Center, Omaha, Nebraska; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska.
| | - Abbey Fingeret
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska; Division of Endocrine Surgery, Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Anne Knape
- Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, University of Nebraska Medical Center, Omaha, Nebraska; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Anery Patel
- Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, University of Nebraska Medical Center, Omaha, Nebraska; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Elizabeth Bradford Bell
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska; Division of Head and Neck Oncology, Department of Otolaryngology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Whitney Goldner
- Division of Diabetes, Endocrinology, and Metabolism, Department of Medicine, University of Nebraska Medical Center, Omaha, Nebraska; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
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Sköld C, Corvigno S, Dahlstrand H, Enblad G, Mezheyeuski A, Sundström-Poromaa I, Stålberg K, Tolf A, Glimelius I, Koliadi A. Association between parity and pregnancy-associated tumor features in high-grade serous ovarian cancer. Cancer Causes Control 2024; 35:1101-1109. [PMID: 38578428 PMCID: PMC11266373 DOI: 10.1007/s10552-024-01876-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 03/24/2024] [Indexed: 04/06/2024]
Abstract
PURPOSE High-grade serous ovarian cancer (HGSC) is the most common ovarian cancer subtype. Parity is an important risk-reducing factor, but the underlying mechanism behind the protective effect is unclear. Our aim was to study if the expression of hormones and proteins involved in pregnancy were affected by the woman's parity status, and if they may be associated with tumor stage and survival. METHODS We evaluated expression of progesterone receptor (PR), progesterone receptor membrane component 1 (PGRMC1), relaxin-2, and transforming growth factor beta 1 (TGFβ1) in tumor tissue from 92 women with HGSC parous (n = 73) and nulliparous (n = 19). Key findings were then evaluated in an independent expansion cohort of 49 patients. Survival rates by hormone/protein expression were illustrated using the Kaplan-Meier method. The independent prognostic value was tested by Cox regression, using models adjusted for established poor-prognostic factors (age at diagnosis, FIGO stage, type of surgery, and macroscopic residual tumor after surgery). RESULTS HGSC tumors from parous women were PR positive (≥ 1% PR expression in tumor cells) more often than tumors from nulliparous women (42% vs. 16%; p-value 0.04), and having more children was associated with developing PR positive tumors [i.e., ≥ 3 children versus nulliparity, adjusted for age at diagnosis and stage: OR 4.31 (95% CI 1.12-19.69)]. A similar result was seen in the expansion cohort. Parity status had no impact on expression of PGRMC1, relaxin-2 and TGFβ1. No associations were seen with tumor stage or survival. CONCLUSION Tumors from parous women with HGSC expressed PR more often than tumors from nulliparous women, indicating that pregnancies might possibly have a long-lasting impact on ovarian cancer development.
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Affiliation(s)
- Camilla Sköld
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
| | - Sara Corvigno
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Hanna Dahlstrand
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Gunilla Enblad
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | | | | | - Karin Stålberg
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Anna Tolf
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Ingrid Glimelius
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
- Division of Clinical Epidemiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anthoula Koliadi
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
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Kotwal A, Simpson R, Whiteman N, Swanson B, Yuil-Valdes A, Fitch M, Nguyen J, Elhag S, Shats O, Goldner W, Bennett R. Relaxin-2 is a novel biomarker for differentiated thyroid carcinoma in humans. Biochem Pharmacol 2024; 225:116323. [PMID: 38815632 DOI: 10.1016/j.bcp.2024.116323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
Relaxin's role in differentiated thyroid cancer (DTC) has been suggested but its characterization in a large clinical sample remains limited. We performed immunohistochemistry for relaxin-2 (RLN2), CD68 (total macrophages), CD163 (M2 macrophages) on tissue microarrays from 181 subjects with non-distant metastatic DTC, and 185 subjects with benign thyroid tissue. Mean pixels/area for each marker was compared between tumor and adjacent tissue via paired-t test and between DTC and benign subjects via t-test assuming unequal variances. RNA qPCR was performed for expression of RLN2, RLN1, and RXFP1 in cell lines. Amongst 181 cases, the mean age was 46 years, 75 % were females. Tumoral tissue amongst the DTC cases demonstrated higher mean expression of RLN2 (53.04 vs. 9.79; p < 0.0001) compared to tumor-adjacent tissue. DTC tissue also demonstrated higher mean expression of CD68 (14.46 vs. 4.79; p < 0.0001), and CD163 (23.13 vs. -0.73; p < 0.0001) than benign thyroid. These markers did not differ between tumor-adjacent and benign thyroid tissue groups; and amongst cases, did not differ by demographic or clinicopathologic features. RLN1 and RXFP1 expression was detected in a minority of the cell lines, while RLN2 was expressed by 6/7 cell lines. In conclusion, widespread RLN2 expression in DTC tissue and most cell lines demonstrates that RLN2 acts in a paracrine manner, and that RLN1 and RXFP1 are probably not involved in thyroid cancer cell signaling. RLN2 is a biomarker for thyroid carcinogenesis, being associated with but not secreted by immunosuppressive macrophages. These findings will guide further investigations for therapeutic avenues against thyroid cancer.
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MESH Headings
- Humans
- Relaxin/metabolism
- Relaxin/genetics
- Thyroid Neoplasms/pathology
- Thyroid Neoplasms/metabolism
- Thyroid Neoplasms/genetics
- Thyroid Neoplasms/diagnosis
- Female
- Middle Aged
- Male
- Biomarkers, Tumor/metabolism
- Biomarkers, Tumor/genetics
- Adult
- Receptors, G-Protein-Coupled/metabolism
- Receptors, G-Protein-Coupled/genetics
- Cell Line, Tumor
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Aged
- Receptors, Peptide/metabolism
- Receptors, Peptide/genetics
- Antigens, Differentiation, Myelomonocytic/metabolism
- Antigens, Differentiation, Myelomonocytic/genetics
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Affiliation(s)
- Anupam Kotwal
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE, USA; VA Nebraska-Western Iowa Health Care System, Omaha, NE, USA; Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ronda Simpson
- VA Nebraska-Western Iowa Health Care System, Omaha, NE, USA
| | - Nicholas Whiteman
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE, USA
| | - Benjamin Swanson
- Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA; Department of Pathology, Microbiology, and Immunology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ana Yuil-Valdes
- Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA; Department of Pathology, Microbiology, and Immunology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Madelyn Fitch
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE, USA
| | - Joshua Nguyen
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE, USA
| | - Salma Elhag
- Department of Pathology, Microbiology, and Immunology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Oleg Shats
- Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Whitney Goldner
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE, USA; Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Robert Bennett
- Department of Internal Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, Omaha, NE, USA; VA Nebraska-Western Iowa Health Care System, Omaha, NE, USA; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
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Pankova O, Korzh O. Significance of plasma relaxin-2 levels in patients with primary hypertension and type 2 diabetes mellitus. Wien Med Wochenschr 2024; 174:161-172. [PMID: 38451351 DOI: 10.1007/s10354-024-01035-x] [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: 09/09/2023] [Accepted: 02/06/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND This study aimed to evaluate plasma relaxin‑2 (RLN-2) levels in patients with arterial hypertension (AH) and their relationships with clinical and laboratory parameters. METHODS The study involved 106 hypertensive patients, including 55 with type 2 diabetes mellitus (T2DM), and 30 control subjects. Plasma RLN-2 levels were measured using an enzyme-linked immunosorbent assay kit. RESULTS RLN-2 levels were reduced in patients with AH compared to healthy volunteers (p < 0.001), and hypertensive patients with T2DM had lower RLN-2 levels than those without impaired glucose metabolism (p < 0.001). RLN‑2 was negatively correlated with systolic blood pressure (SBP) (p < 0.001) and anthropometric parameters such as body mass index (BMI; p = 0.027), neck (p = 0.045) and waist (p = 0.003) circumferences, and waist-to-hip ratio (p = 0.011). RLN‑2 also had inverse associations with uric acid levels (p = 0.019) and lipid profile parameters, particularly triglycerides (p < 0.001) and non-HDL-C/HDL‑C (p < 0.001), and a positive relationship with HDL‑C (p < 0.001). RLN‑2 was negatively associated with glucose (p < 0.001), insulin (p = 0.043), HbA1c (p < 0.001), and HOMA-IR index (p < 0.001). Univariate binary logistic regression identified RLN‑2 as a significant predictor of impaired glucose metabolism (p < 0.001). CONCLUSIONS Decreased RLN-2 levels in patients with AH and T2DM and established relationships of RLN‑2 with SBP and parameters of glucose metabolism and lipid profile suggest a diagnostic role of RLN‑2 as a biomarker for AH with T2DM.
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Affiliation(s)
- Olena Pankova
- Department of General Practice-Family Medicine, Kharkiv National Medical University, Heroiv Kharkova Ave., 275, 61106, Kharkiv, Ukraine.
| | - Oleksii Korzh
- Department of General Practice-Family Medicine, Kharkiv National Medical University, Heroiv Kharkova Ave., 275, 61106, Kharkiv, Ukraine
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Jung J, Han H. The diverse influences of relaxin-like peptide family on tumor progression: Potential opportunities and emerging challenges. Heliyon 2024; 10:e24463. [PMID: 38298643 PMCID: PMC10828710 DOI: 10.1016/j.heliyon.2024.e24463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 02/02/2024] Open
Abstract
Relaxin-like peptide family exhibit differential expression patterns in various types of cancers and play a role in cancer development. This family participates in tumorigenic processes encompassing proliferation, migration, invasion, tumor microenvironment, immune microenvironment, and anti-cancer resistance, ultimately influencing patient prognosis. In this review, we explore the mechanisms underlying the interaction between the RLN-like peptide family and tumors and provide an overview of therapeutic approaches utilizing this interaction.
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Affiliation(s)
| | - Hyunho Han
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
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Galadima M, Teles M, Pastor J, Hernández-Losa J, Rodríguez-Gil JE, Rivera del Alamo MM. Programmed Death-Ligand (PD-L1), Epidermal Growth Factor (EGF), Relaxin, and Matrix Metalloproteinase-3 (MMP3): Potential Biomarkers of Malignancy in Canine Mammary Neoplasia. Int J Mol Sci 2024; 25:1170. [PMID: 38256245 PMCID: PMC10816983 DOI: 10.3390/ijms25021170] [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: 12/11/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Gene expression has been suggested as a putative tool for prognosis and diagnosis in canine mammary neoplasia (CMNs). In the present study, 58 formalin-fixed paraffin-embedded (FFPE) paraffined canine mammary neoplasias from 27 different bitches were included. Thirty-seven tumours were classified as benign, whereas thirty-one were classified as different types of canine carcinoma. In addition, mammary samples from three healthy bitches were also included. The gene expression for vascular endothelial growth factor-α (VEGFα), CD20, progesterone receptor (PGR), hyaluronidase-1 (HYAL-1), programmed death-ligand 1 (PD-L1), epidermal growth factor (EGF), relaxin (RLN2), and matrix metalloproteinase-3 (MMP3) was assessed through RT-qPCR. All the assessed genes yielded a higher expression in neoplastic mammary tissue than in healthy tissue. All the evaluated genes were overexpressed in neoplastic mammary tissue, suggesting a role in the process of tumorigenesis. Moreover, PD-L1, EGF, relaxin, and MMP3 were significantly overexpressed in malignant CMNs compared to benign CMNs, suggesting they may be useful as malignancy biomarkers.
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Affiliation(s)
- Makchit Galadima
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
| | - Mariana Teles
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Josep Pastor
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
| | - Javier Hernández-Losa
- Department of Pathology, Hospital Universitari Vall d’Hebron, VHIR, 08035 Barcelona, Spain;
| | - Joan Enric Rodríguez-Gil
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
| | - Maria Montserrat Rivera del Alamo
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (M.G.); (J.P.); (J.E.R.-G.)
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7
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Relaxin-2 as a Potential Biomarker in Cardiovascular Diseases. J Pers Med 2022; 12:jpm12071021. [PMID: 35887517 PMCID: PMC9317583 DOI: 10.3390/jpm12071021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022] Open
Abstract
The pleiotropic hormone relaxin-2 plays a pivotal role in the physiology and pathology of the cardiovascular system. Relaxin-2 exerts relevant regulatory functions in cardiovascular tissues through the specific receptor relaxin family peptide receptor 1 (RXFP1) in the regulation of cardiac metabolism; the induction of vasodilatation; the reversion of fibrosis and hypertrophy; the reduction of inflammation, oxidative stress, and apoptosis; and the stimulation of angiogenesis, with inotropic and chronotropic effects as well. Recent preclinical and clinical outcomes have encouraged the potential use of relaxin-2 (or its recombinant form, known as serelaxin) as a therapeutic strategy during cardiac injury and/or in patients suffering from different cardiovascular disarrangements, especially heart failure. Furthermore, relaxin-2 has been proposed as a promising biomarker of cardiovascular health and disease. In this review, we emphasize the relevance of the endogenous hormone relaxin-2 as a useful diagnostic biomarker in different backgrounds of cardiovascular pathology, such as heart failure, atrial fibrillation, myocardial infarction, ischemic heart disease, aortic valve disease, hypertension, and atherosclerosis, which could be relevant in daily clinical practice and could contribute to comprehending the specific role of relaxin-2 in cardiovascular diseases.
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8
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Martins RC, Pintalhão M, Leite-Moreira A, Castro-Chaves P. Relaxin and the Cardiovascular System: from Basic Science to Clinical Practice. Curr Mol Med 2021; 20:167-184. [PMID: 31642776 DOI: 10.2174/1566524019666191023121607] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 08/07/2019] [Accepted: 10/07/2019] [Indexed: 12/16/2022]
Abstract
The peptide hormone relaxin was originally linked to reproductive physiology, where it is believed to mediate systemic and renal hemodynamic adjustments to pregnancy. Recently, its broad range of effects in the cardiovascular system has been the focus of intensive research regarding its implications under pathological conditions and potential therapeutic potential. An understanding of the multitude of cardioprotective actions prompted the study of serelaxin, recombinant human relaxin-2, for the treatment of acute heart failure. Despite early promising results from phase II studies, recently revealed RELAX-AHF-2 outcomes were rather disappointing and the treatment for acute heart failure remains an unmet medical need. This article reviews the physiologic actions of relaxin on the cardiovascular system and its relevance in the pathophysiology of cardiovascular disease. We summarize the most updated clinical data and discuss future directions of serelaxin for the treatment of acute heart failure. This should encourage additional work to determine how can relaxin's beneficial effects be exploited for the treatment of cardiovascular disease.
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Affiliation(s)
- Rafael Clara Martins
- Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal.,Cardiovascular Research Centre, Porto, Portugal.,Internal Medicine Department, São João Hospital Centre, Porto, Portugal
| | - Mariana Pintalhão
- Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal.,Cardiovascular Research Centre, Porto, Portugal.,Internal Medicine Department, São João Hospital Centre, Porto, Portugal
| | - Adelino Leite-Moreira
- Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal.,Cardiovascular Research Centre, Porto, Portugal.,Cardiothoracic Surgery Department, São João Hospital Centre, Porto, Portugal
| | - Paulo Castro-Chaves
- Department of Surgery and Physiology, Faculty of Medicine, University of Porto, Porto, Portugal.,Cardiovascular Research Centre, Porto, Portugal.,Internal Medicine Department, São João Hospital Centre, Porto, Portugal
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9
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Hernandez BY, Rahman M, Loo LWM, Chan OTM, Horio D, Morita S, Bryant-Greenwood G. BRAF V600E, hypothyroidism, and human relaxin in thyroid carcinogenesis. J Cancer Res Clin Oncol 2020; 147:183-194. [PMID: 32995956 DOI: 10.1007/s00432-020-03401-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 09/19/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE BRAFV600E, a major driver of thyroid cancer, evaluated in the context of thyroid hormones and human relaxin. METHODS Immunohistochemical expressions of BRAFV600E, TSH, TSH receptor (TSHR), T4, T3 receptor (T3R), RLNH2, and its receptor, RXFP1, were evaluated in thyroid tumors from a retrospective U.S. population of 481 cancer cases diagnosed in 1983-2004. RESULTS BRAFV600E was expressed in 52% of all thyroid tumors; expression of other markers ranged from 25% for T4 to 98% for RLNH2. Tumors predominantly exhibited hypothyroid-like conditions characterized by elevated TSH and TSHR and reduced T4. BRAFV600E prevalence was significantly higher in tumors expressing TSH, TSHR, T3R, and RXFP1 and lower in tumors expressing T4. The proportion of BRAFV600E mutation in classic papillary tumors significantly increased from 56 to 72% over the 21-year period of diagnoses, while expression of RXFP1, TSH, TSHR, and T3R decreased in non-tumor. Racial/ethnic differences were observed in thyroid hormone marker expression. Non-tumor expression of TSH, TSHR, and T3R were each associated with shorter overall survival, but did not remain significant after adjustment for demographic and clinical factors. CONCLUSIONS Our study provides the first evidence of the potential interaction of BRAFV600E mutation, relaxin, and thyroid hormones in thyroid carcinogenesis. Moreover, our results suggest that hypothyroidism, influenced by RLNH2 activity, may underlie the development of the majority of thyroid cancers and mediate the role of BRAFV600E in thyroid carcinogenesis. BRAFV600E mutation is increasing in papillary thyroid cancers and may be contributing to the rising incidence of this malignancy.
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Affiliation(s)
- Brenda Y Hernandez
- University of Hawaii Cancer Center, University of Hawaii, 701 Ilalo Street, Honolulu, Hawaii, 96813, USA.
| | - Mobeen Rahman
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, 44195, USA
| | - Lenora W M Loo
- University of Hawaii Cancer Center, University of Hawaii, 701 Ilalo Street, Honolulu, Hawaii, 96813, USA
| | - Owen T M Chan
- University of Hawaii Cancer Center, University of Hawaii, 701 Ilalo Street, Honolulu, Hawaii, 96813, USA
| | - David Horio
- John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, 96813, USA
| | - Shane Morita
- John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, 96813, USA
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10
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Thanasupawat T, Glogowska A, Nivedita-Krishnan S, Wilson B, Klonisch T, Hombach-Klonisch S. Emerging roles for the relaxin/RXFP1 system in cancer therapy. Mol Cell Endocrinol 2019; 487:85-93. [PMID: 30763603 DOI: 10.1016/j.mce.2019.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 02/06/2023]
Abstract
A role for the hormone relaxin in cancer was described well before the receptor was identified. Relaxin predominantly increases the growth and invasive potential in cancers of different origins. However, relaxin was also shown to promote cell differentiation and to act in a dose-and time-dependent manner in different cancer cell models used. Following the discovery of the relaxin like family peptide receptor 1 (RXFP1) as the cellular receptor for RLN1 and RLN2, research has focussed on the ligand interaction with the large extracellular domain of RXFP1 and resulting molecular signaling mechanisms. RXFP1 activation mediates anti-apoptotic functions, angiogenesis and chemoresistance in cancer cells. This minireview summarizes the known biological functions of RXFP1 activation in different cancer entities in-vitro and in-vivo and outlines possible mechanisms to therapeutically address the relaxin-RXFP1 system in cancer cells.
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Affiliation(s)
- Thatchawan Thanasupawat
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Aleksandra Glogowska
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Sai Nivedita-Krishnan
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Brian Wilson
- Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada
| | - Thomas Klonisch
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba, Winnipeg, Canada
| | - Sabine Hombach-Klonisch
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba, Winnipeg, Canada.
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11
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Fue M, Miki Y, Takagi K, Hashimoto C, Yaegashi N, Suzuki T, Ito K. Relaxin 2/RXFP1 Signaling Induces Cell Invasion via the β-Catenin Pathway in Endometrial Cancer. Int J Mol Sci 2018; 19:ijms19082438. [PMID: 30126180 PMCID: PMC6121407 DOI: 10.3390/ijms19082438] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 12/20/2022] Open
Abstract
Relaxin is known to play an important role in animal pregnancies, including those of humans. It is suggested that relaxin induces aggressive cell growth and invasiveness in several types of cancer, including endometrial cancer. However, the mechanisms of relaxin remain largely unclear. In this study, we examined the effects of relaxin 2 (RLN2), the major circulating relaxin in humans, on human endometrial carcinoma cell lines. RLN2 treatment induced invasion in HEC-1B and Ishikawa cells. RLN2-induced cell invasion was significantly decreased by transfection of relaxin receptor 1 (RXFP1) siRNAs. The β-catenin inhibitor, XAV939, also significantly inhibited the RLN2-induced cell invasions. Both a decrease of cadherin expression and an increase of β-catenin phosphorylation were observed in response to the RLN2 treatment in HEC-1B and Ishikawa cells. We then examined RLN2 and RXFP1 expression in 80 human endometrioid endometrial carcinoma tissues. RLN2 immunoreactivity was detected in the human endometrial carcinoma cells and had a correlative tendency with histological grade and RXFP1. These results suggest that adherens junctions in cancer cells are weakened by the breakdown of the cadherin/catenin complex, which is induced by β-catenin phosphorylation via RLN2/RXFP1 signaling.
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Affiliation(s)
- Misaki Fue
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Sendai 980-8575, Japan.
| | - Yasuhiro Miki
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Sendai 980-8575, Japan.
| | - Kiyoshi Takagi
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Chiaki Hashimoto
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Takashi Suzuki
- Department of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Kiyoshi Ito
- Department of Disaster Obstetrics and Gynecology, International Research Institute of Disaster Science (IRIDeS), Tohoku University, Sendai 980-8575, Japan.
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12
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Guo X, Liu Y, Huang X, Wang Y, Qu J, Lv Y. Serum relaxin as a diagnostic and prognostic marker in patients with epithelial ovarian cancer. Cancer Biomark 2018; 21:81-87. [PMID: 29060928 DOI: 10.3233/cbm-170278] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND AIM Relaxin is a short circulating peptide hormone. The aim of this study was to understand the role of relaxin in progression of epithelial ovarian cancer (EOC) and to assess its diagnostic and prognostic significance. METHODS A total of 124 patients with EOC, 46 patients with benign ovarian diseases, and 50 healthy controls were recruited. Serum levels of relaxin were determined by ELISA method. The relationship between serum relaxin level and each of the clinicopathological parameters was analyzed using the χ2 test. Survival curves were plotted using the Kaplan-Meier method. The statistical difference in survival between the different groups was compared using the log-rank test. Survival correlation with the prognostic factors was further investigated by multivariate analysis using the Cox proportional hazards model with backward stepwise likelihood ratio. RESULTS The results showed that serum relaxin level was significantly higher in patients with EOC than those with benign ovarian diseases and healthy controls (p< 0.01). Serum relaxin level was associated with FIGO stage, lymph node metastasis, tumor resectability, survival of the patients, chemotherapy and tumor recurrence (p< 0.05). Analysis using the Kaplan-meier method indicated that patients with high serum relaxin had significantly shorter overall survival time than those with low relaxin (p< 0.01). In a multivariate analysis along with clinical prognostic parameters, serum relaxin was identified as an independent adverse prognostic variable for survival. CONCLUSIONS These results indicated that serum relaxin may be a clinically useful indicator for diagnostic and prognostic evaluation in EOC patients.
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Affiliation(s)
- Xiaojing Guo
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yujie Liu
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xia Huang
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yun Wang
- Department of Gynaecology, People's Hospital of Jining, Jining, Shandong, China.,Department of Gynaecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jin Qu
- Department of Gynaecology, People's Hospital of Jining, Jining, Shandong, China.,Department of Gynaecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yingpin Lv
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Affiliation(s)
- Y Xu
- Department of Urology, The Central Hospital of Linyi , Yishui, China
| | - Q Yu
- Department of Urology, The Affiliated Hospital of Qingdao University , Qingdao, China
| | - Y Liu
- Department of Urology, The Central Hospital of Linyi , Yishui, China
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Yang M, Yang CS, Guo W, Tang J, Huang Q, Feng S, Jiang A, Xu X, Jiang G, Liu YQ. A novel fiber chimeric conditionally replicative adenovirus-Ad5/F35 for tumor therapy. Cancer Biol Ther 2017; 18:833-840. [PMID: 29144842 DOI: 10.1080/15384047.2017.1395115] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Significant progress has been made in the diagnosis and treatment of cancer; however, significant challenges remain. Conditionally replicating adenoviruses (CRAds), which not only kill cancer cells, but also serve as vectors to express therapeutic genes, are a novel and effective method to treat cancer. However, most adenoviruses are Ad5, which infect cells through the coxsackie and adenovirus receptor (CAR). The transduction efficacy of Ad5 is restricted because of the absent or low expression of CAR on several cancer cells. Ad serotype 35 has a different tropism pattern to Ad5. Ad35 attaches to cells via a non-CAR receptor, CD46, which is expressed widely on most tumor cells. Thus, chimeric adenoviral vectors consisting of the knob and shaft of Ad35 combined with Ad5 have been constructed. The chimeric fiber adenoviral vectors can transduce CAR-positive and CAR-negative cell lines. In this review, we explore the application of the novel fiber chimeric conditionally replicative adenovirus-Ad5/F35 in tumor therapy in terms of safety, mechanism, transduction efficacy, and antitumor effect.
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Affiliation(s)
- Ming Yang
- a Department of Radiotherapy , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China.,b Department of Oncology , Affiliated Nanyang Second General Hospital , Nanyang , China
| | - Chun Sheng Yang
- c Department of Dermatology , Affiliated Huai'an Hospital of Xuzhou Medical University , the Second People's Hospital of Huai'an, Huai'an , China
| | - WenWen Guo
- a Department of Radiotherapy , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - JianQin Tang
- d Department of Dermatology , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - Qian Huang
- a Department of Radiotherapy , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - ShouXin Feng
- a Department of Radiotherapy , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - AiJun Jiang
- a Department of Radiotherapy , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - XiFeng Xu
- a Department of Radiotherapy , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - Guan Jiang
- d Department of Dermatology , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
| | - Yan Qun Liu
- d Department of Dermatology , Affiliated Hospital of Xuzhou Medical University , Xuzhou , China
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15
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Relaxin-2 Expression in Oral Squamous Cell Carcinoma. Int J Biol Markers 2016; 31:e324-9. [DOI: 10.5301/jbm.5000219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2016] [Indexed: 02/07/2023]
Abstract
Background When advanced, oral squamous cell carcinoma (OSCC) may involve adjacent non-epithelial structures, and the prognosis is worse for bone invasion. Human relaxin-2 is a peptide hormone that has recently been associated with cancer. It can induce human osteoclast differentiation and activation, suggesting a role in tumor-driven osteolysis. This study was a preliminary assessment of the prognostic role of relaxin-2 in surgical specimens of OSCC tissue and adjacent but uninvolved mandibular/maxillary bone. Methods Relaxin-2 immunohistochemical expression and reaction intensity were assessed in tumor and uninvolved adjacent mandibular/maxillary bone specimens from 23 operated OSCC patients. Results All OSCC specimens were positive for relaxin-2. The intensity of its reaction in OSCC correlated significantly with the pattern of the tumor's invasion front (p = 0.02), being higher with the infiltrative pattern. Mean relaxin-2 immunohistochemical expression was higher in patients whose OSCC recurred after treatment than those experiencing no recurrence (81.3% ± 22.6% vs. 59.5% ± 29.7%, respectively). A significant direct association emerged between relaxin-2 expression in OSCC specimens and recurrence rate (p = 0.049). Conclusions Relaxin-2 expression in OSCC should be further investigated as a potentially useful marker for identifying patients at higher risk of recurrence, who might benefit from closer follow-up and more aggressive adjuvant therapy. In other oncological settings, increasing evidence of relaxin being produced by cancer cells is prompting efforts to synthesize human relaxin-2 analogs capable of acting as antagonists and limiting tumor growth.
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16
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Lim H, Moon A. Inflammatory fibroblasts in cancer. Arch Pharm Res 2016; 39:1021-31. [DOI: 10.1007/s12272-016-0787-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 06/22/2016] [Indexed: 01/07/2023]
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Gamma-secretase-independent role for cadherin-11 in neurotrophin receptor p75 (p75(NTR)) mediated glioblastoma cell migration. Mol Cell Neurosci 2015; 69:41-53. [PMID: 26476273 DOI: 10.1016/j.mcn.2015.10.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 09/06/2015] [Accepted: 10/13/2015] [Indexed: 11/23/2022] Open
Abstract
The p75 neurotrophin receptor (p75(NTR)) undergoes γ-secretase-mediated regulated intramembrane proteolysis and is involved in glioblastoma cell migration and invasion. Consistent with previous reports, in this study we show that p75NTR increases U87-MG glioblastoma cell migration, which is reversed by inhibition of γ-secretase activity. However, we show that expression or stabilization of the γ-secretase-generated p75(NTR) intracellular domain (ICD) is not sufficient to induce U87-MG glioblastoma cell migration, and that exogenous expression of p75(NTR) ICD inhibits p75(NTR)-mediated glioblastoma cell (U87-MG and U373-MG) migration. To identify pathways and to determine how p75(NTR) mediates glioblastoma migration we utilized a microarray approach to assess differential gene expression profiles between parental U87-MG and cells stably expressing wild-type p75(NTR), a γ-secretase cleavage-resistant chimeric p75(NTR) mutant (p75FasTM) and the γ-secretase-generated p75(NTR)-ICD, which mimics constitutively cleaved p75(NTR) receptor. In our microarray data analysis we identified a subset of genes that were constitutively up-regulated in wild-type p75(NTR) cells, which were also repressed in p75(NTR) ICD expressing cells. Furthermore, our data revealed among the many differentially expressed genes, cadherin-11 (Cdh-11), matrix metalloproteinase 12 and relaxin/insulin-like family peptide receptor 2 as constitutively up-regulated in wild-type p75(NTR) cells, independent of γ-secretase activity. Consistent with a role in glioblastoma migration, we found that U87-p75(NTR) cells express higher levels of Cdh-11 protein and that siRNA-mediated knockdown of Cdh-11 resulted in a significant decrease in p75(NTR)-mediated glioblastoma cell migration. Therefore, we hypothesize that p75(NTR) can impact U87-MG glioblastoma cell migration in a γ-secretase-independent manner through modulation of specific genes, including Cdh-11, and that both γ-secretase-independent and -dependent mechanisms are involved in p75(NTR)-mediated U87-MG glioblastoma cell migration.
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Halls ML, Bathgate RAD, Sutton SW, Dschietzig TB, Summers RJ. International Union of Basic and Clinical Pharmacology. XCV. Recent advances in the understanding of the pharmacology and biological roles of relaxin family peptide receptors 1-4, the receptors for relaxin family peptides. Pharmacol Rev 2015; 67:389-440. [PMID: 25761609 DOI: 10.1124/pr.114.009472] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Relaxin, insulin-like peptide 3 (INSL3), relaxin-3, and INSL5 are the cognate ligands for the relaxin family peptide (RXFP) receptors 1-4, respectively. RXFP1 activates pleiotropic signaling pathways including the signalosome protein complex that facilitates high-sensitivity signaling; coupling to Gα(s), Gα(i), and Gα(o) proteins; interaction with glucocorticoid receptors; and the formation of hetero-oligomers with distinctive pharmacological properties. In addition to relaxin-related ligands, RXFP1 is activated by Clq-tumor necrosis factor-related protein 8 and by small-molecular-weight agonists, such as ML290 [2-isopropoxy-N-(2-(3-(trifluoromethylsulfonyl)phenylcarbamoyl)phenyl)benzamide], that act allosterically. RXFP2 activates only the Gα(s)- and Gα(o)-coupled pathways. Relaxin-3 is primarily a neuropeptide, and its cognate receptor RXFP3 is a target for the treatment of depression, anxiety, and autism. A variety of peptide agonists, antagonists, biased agonists, and an allosteric modulator target RXFP3. Both RXFP3 and the related RXFP4 couple to Gα(i)/Gα(o) proteins. INSL5 has the properties of an incretin; it is secreted from the gut and is orexigenic. The expression of RXFP4 in gut, adipose tissue, and β-islets together with compromised glucose tolerance in INSL5 or RXFP4 knockout mice suggests a metabolic role. This review focuses on the many advances in our understanding of RXFP receptors in the last 5 years, their signal transduction mechanisms, the development of novel compounds that target RXFP1-4, the challenges facing the field, and current prospects for new therapeutics.
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Affiliation(s)
- Michelle L Halls
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia (M.L.H., R.J.S.); Neuropeptides Division, Florey Institute of Neuroscience and Mental Health and Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia (R.A.D.B.); Neuroscience Drug Discovery, Janssen Research & Development, LLC, San Diego, California (S.W.S.); Immundiagnostik AG, Bensheim, Germany (T.B.D.); and Charité-University Medicine Berlin, Campus Mitte, Medical Clinic for Cardiology and Angiology, Berlin, Germany (T.B.D.)
| | - Ross A D Bathgate
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia (M.L.H., R.J.S.); Neuropeptides Division, Florey Institute of Neuroscience and Mental Health and Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia (R.A.D.B.); Neuroscience Drug Discovery, Janssen Research & Development, LLC, San Diego, California (S.W.S.); Immundiagnostik AG, Bensheim, Germany (T.B.D.); and Charité-University Medicine Berlin, Campus Mitte, Medical Clinic for Cardiology and Angiology, Berlin, Germany (T.B.D.)
| | - Steve W Sutton
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia (M.L.H., R.J.S.); Neuropeptides Division, Florey Institute of Neuroscience and Mental Health and Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia (R.A.D.B.); Neuroscience Drug Discovery, Janssen Research & Development, LLC, San Diego, California (S.W.S.); Immundiagnostik AG, Bensheim, Germany (T.B.D.); and Charité-University Medicine Berlin, Campus Mitte, Medical Clinic for Cardiology and Angiology, Berlin, Germany (T.B.D.)
| | - Thomas B Dschietzig
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia (M.L.H., R.J.S.); Neuropeptides Division, Florey Institute of Neuroscience and Mental Health and Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia (R.A.D.B.); Neuroscience Drug Discovery, Janssen Research & Development, LLC, San Diego, California (S.W.S.); Immundiagnostik AG, Bensheim, Germany (T.B.D.); and Charité-University Medicine Berlin, Campus Mitte, Medical Clinic for Cardiology and Angiology, Berlin, Germany (T.B.D.)
| | - Roger J Summers
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Parkville, Victoria, Australia (M.L.H., R.J.S.); Neuropeptides Division, Florey Institute of Neuroscience and Mental Health and Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, Australia (R.A.D.B.); Neuroscience Drug Discovery, Janssen Research & Development, LLC, San Diego, California (S.W.S.); Immundiagnostik AG, Bensheim, Germany (T.B.D.); and Charité-University Medicine Berlin, Campus Mitte, Medical Clinic for Cardiology and Angiology, Berlin, Germany (T.B.D.)
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Marioni G, Zanoletti E, Lovato A, Franchella S, Giacomelli L, Gianatti A, Mazzoni A, Blandamura S, Martini A. Relaxin-2 expression in temporal bone carcinoma. Eur Arch Otorhinolaryngol 2014; 272:3225-32. [PMID: 25388992 DOI: 10.1007/s00405-014-3383-x] [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: 07/16/2014] [Accepted: 10/28/2014] [Indexed: 12/13/2022]
Abstract
Temporal bone squamous cell carcinoma (TBSCC) is an uncommon, aggressive malignancy with a significant local recurrence rate even in patients with postoperative pathology reports of free surgical margins. This raises the question of how "free" negative margins should be to be oncologically safe, especially in bone tissue. A potential role for relaxin-2 hormone in tumor-driven osteolysis has recently been reported. The aim of this study was to assess the prognostic role of relaxin-2 expression in TBSCC tissue specimens and pathologically negative bone margins. Relaxin-2 immunohistochemical expression was assessed in 25 consecutively operated TBSCC patients. Several pathological variables correlated with recurrence rate (pT stage, dura mater involvement), disease-free survival (DFS) (pT stage, pN status, grade, and dura mater involvement), and disease-specific survival (DSS) (pT stage, pN status, grade, and dura mater involvement). The recurrence rate, DFS, and DSS did not correlate with relaxin-2 expression in TBSCC specimens or pathologically negative bone margins. Although local recurrence in TBSCC could relate to neoplastic bone invasion not apparent on conventional pathological investigations, the present preliminary findings seem to rule out any role of relaxin-2 in mediating this local aggressiveness. Molecular mechanisms of TBSCC recurrence after curative treatment should be further investigated.
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Affiliation(s)
- Gino Marioni
- Department of Neurosciences, Otolaryngology Section, University of Padova, Via Giustiniani 2, 35128, Padova, Italy.
| | - Elisabetta Zanoletti
- Department of Neurosciences, Otolaryngology Section, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Andrea Lovato
- Department of Neurosciences, Otolaryngology Section, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | - Sebastiano Franchella
- Department of Neurosciences, Otolaryngology Section, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | | | - Andrea Gianatti
- Anatomic Pathology Unit, Ospedali Riuniti Bergamo, Bergamo, Italy
| | - Antonio Mazzoni
- Department of Neurosciences, Otolaryngology Section, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
| | | | - Alessandro Martini
- Department of Neurosciences, Otolaryngology Section, University of Padova, Via Giustiniani 2, 35128, Padova, Italy
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Neschadim A, Summerlee AJS, Silvertown JD. Targeting the relaxin hormonal pathway in prostate cancer. Int J Cancer 2014; 137:2287-95. [PMID: 25043063 DOI: 10.1002/ijc.29079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 07/07/2014] [Indexed: 11/11/2022]
Abstract
Targeting the androgen signalling pathway has long been the hallmark of anti-hormonal therapy for prostate cancer. However, development of androgen-independent prostate cancer is an inevitable outcome to therapies targeting this pathway, in part, owing to the shift from cancer dependence on androgen signalling for growth in favor of augmentation of other cellular pathways that provide proliferation-, survival- and angiogenesis-promoting signals. This review focuses on the role of the hormone relaxin in the development and progression of prostate cancer, prior to and after the onset of androgen independence, as well as its role in cancers of other reproductive tissues. As the body of literature expands, examining relaxin expression in cancerous tissues and its role in a growing number of in vitro and in vivo cancer models, our understanding of the important involvement of this hormone in cancer biology is becoming clearer. Specifically, the pleiotropic functions of relaxin affecting cell growth, angiogenesis, blood flow, cell migration and extracellular matrix remodeling are examined in the context of cancer progression. The interactions and intercepts of the intracellular signalling pathways of relaxin with the androgen pathway are explored in the context of progression of castration-resistant and androgen-independent prostate cancers. We provide an overview of current anti-hormonal therapeutic treatment options for prostate cancer and delve into therapeutic approaches and development of agents aimed at specifically antagonizing relaxin signalling to curb tumor growth. We also discuss the rationale and challenges utilizing such agents as novel anti-hormonals in the clinic, and their potential to supplement current therapeutic modalities.
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Affiliation(s)
- Anton Neschadim
- Armour Therapeutics Inc., Toronto, 124 Orchard View Blvd, Toronto, ON, Canada
| | | | - Joshua D Silvertown
- Armour Therapeutics Inc., Toronto, 124 Orchard View Blvd, Toronto, ON, Canada
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21
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Wolf JM, Scher DL, Etchill EW, Scott F, Williams AE, Delaronde S, King KB. Relationship of relaxin hormone and thumb carpometacarpal joint arthritis. Clin Orthop Relat Res 2014; 472:1130-7. [PMID: 23559157 PMCID: PMC3940769 DOI: 10.1007/s11999-013-2960-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The female predominance in thumb carpometacarpal (CMC) joint arthritis has led to speculation that reproductive hormones or hypermobility are responsible. Evidence shows that patients with pathologic laxity have a higher rate of thumb CMC arthritis. Relaxin hormone increases laxity in the pelvic ligaments through upregulation of matrix metalloproteases (MMPs). It is thus a hormone of interest in the development of thumb CMC arthritis. QUESTIONS/PURPOSES Our goals were to identify demographic and hormonal factors associated with joint laxity in patients with CMC arthritis and to evaluate the relationship among serum relaxin, relaxin receptors, and MMPs in the anterior oblique ligament (AOL) of the thumb. We hypothesized that serum relaxin was correlated with joint laxity as well as with relaxin receptors and MMPs in the AOL. METHODS Forty-nine patients undergoing thumb CMC arthroplasty underwent laxity examination, blood draw, and AOL sampling. Ligaments were analyzed for relaxin receptor and MMPs 1 and 3 using quantitative reverse-transcriptase polymerase chain reaction. RESULTS Women demonstrated more joint laxity than men (p < 0.001). RNA analysis confirmed relaxin receptors in the AOL as well as MMPs 1 and 3. There was a significant correlation between serum relaxin and MMP-1 (p = 0.04). Detectable serum relaxin was negatively correlated with relaxin receptors in the AOL (p = 0.02). CONCLUSIONS Further studies are needed to evaluate the role of laxity and sex hormones in thumb CMC arthritis. CLINICAL RELEVANCE Relaxin hormone may play a role in the development of arthritis at the thumb CMC joint. LEVEL OF EVIDENCE Level I, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Jennifer Moriatis Wolf
- Department of Orthopaedic Surgery, New England Musculoskeletal Institute, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030-4038 USA
| | - Danielle L. Scher
- Department of Orthopaedics, Brian Allgood Army Community Hospital, APO, AP USA
| | - Eric W. Etchill
- University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Frank Scott
- Department of Orthopaedic Surgery, University of Colorado, Aurora, CO USA
| | - Allison E. Williams
- Division of Research/Nursing, Bay Pines VA Health Care System, Bay Pines, FL USA
| | - Steven Delaronde
- Department of Community Medicine and Health Care, University of Connecticut Health Center, Farmington, CT USA
| | - Karen B. King
- Department of Orthopaedic Surgery, University of Colorado, Aurora, CO USA ,Surgical Service, Denver Veterans Administration Medical Center, Denver, CO USA
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Perry SW, Schueckler JM, Burke K, Arcuri GL, Brown EB. Stromal matrix metalloprotease-13 knockout alters Collagen I structure at the tumor-host interface and increases lung metastasis of C57BL/6 syngeneic E0771 mammary tumor cells. BMC Cancer 2013; 13:411. [PMID: 24010522 PMCID: PMC3766650 DOI: 10.1186/1471-2407-13-411] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 08/28/2013] [Indexed: 12/21/2022] Open
Abstract
Background Matrix metalloproteases and collagen are key participants in breast cancer, but their precise roles in cancer etiology and progression remain unclear. MMP13 helps regulate collagen structure and has been ascribed largely harmful roles in cancer, but some studies demonstrate that MMP13 may also protect against tumor pathology. Other studies indicate that collagen’s organizational patterns at the breast tumor-host interface influence metastatic potential. Therefore we investigated how MMP13 modulates collagen I, a principal collagen subtype in breast tissue, and affects tumor pathology and metastasis in a mouse model of breast cancer. Methods Tumors were implanted into murine mammary tissues, and their growth analyzed in Wildtype and MMP13 KO mice. Following extraction, tumors were analyzed for collagen I levels and collagen I macro- and micro-structural properties at the tumor-host boundary using immunocytochemistry and two-photon and second harmonic generation microscopy. Lungs were analyzed for metastases counts, to correlate collagen I changes with a clinically significant functional parameter. Statistical analyses were performed by t-test, analysis of variance, or Wilcoxon-Mann–Whitney tests as appropriate. Results We found that genetic ablation of host stromal MMP13 led to: 1. Increased mammary tumor collagen I content, 2. Marked changes in collagen I spatial organization, and 3. Altered collagen I microstructure at the tumor-host boundary, as well as 4. Increased metastasis from the primary mammary tumor to lungs. Conclusions These results implicate host MMP13 as a key regulator of collagen I structure and metastasis in mammary tumors, thus making it an attractive potential therapeutic target by which we might alter metastatic potential, one of the chief determinants of clinical outcome in breast cancer. In addition to identifying stromal MMP13 is an important regulator of the tumor microenvironment and metastasis, these results also suggest that stromal MMP13 may protect against breast cancer pathology under some conditions, a finding with important implications for development of chemotherapies directed against matrix metalloproteases.
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Affiliation(s)
- Seth W Perry
- Department of Biomedical Engineering, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Rochester, NY 14642, USA.
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Binder C, Chuang E, Habla C, Bleckmann A, Schulz M, Bathgate R, Einspanier A. Relaxins enhance growth of spontaneous murine breast cancers as well as metastatic colonization of the brain. Clin Exp Metastasis 2013; 31:57-65. [PMID: 23963762 PMCID: PMC3892110 DOI: 10.1007/s10585-013-9609-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Accepted: 08/05/2013] [Indexed: 11/26/2022]
Abstract
Relaxins are known for their tissue remodeling capacity which is also a hallmark of cancer progression. However, their role in the latter context is still unclear, particularly in breast cancer. In a mouse model with spontaneously arising breast cancer due to erbB2-overexpression we show that exposure to porcine relaxin results in significantly enhanced tumour growth as compared to control animals. This is accompanied by increased serum concentrations of progesterone and estradiol as well as elevated expression of the respective receptors and the relaxin receptor RXFP1 in the tumour tissue. It is also associated with enhanced infiltration by tumour-associated macrophages which are known to promote tumour progression. Additionally, we show in an ex vivo model of metastatic brain colonization that porcine relaxin as well as human brain-specific relaxin-3 promotes invasion into the brain tissue and enhance interaction of breast cancer cells with the resident brain macrophages, the microglia. Relaxin signaling is mediated via RXFP1, since R 3/I5, a specific agonist of the relaxin-3 receptor RXFP3 in the brain, does not significantly enhance invasion. Taken together, these findings strongly support a role of relaxins in the progression of breast cancer where they foster primary tumour growth as well as metastatic colonization by direct and indirect means.
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Affiliation(s)
- Claudia Binder
- Department of Haematology/Oncology, Georg-August-University, Robert-Koch-str. 40, 37075 Göttingen, Germany
| | - Eugenia Chuang
- Department of Haematology/Oncology, Georg-August-University, Robert-Koch-str. 40, 37075 Göttingen, Germany
| | - Christina Habla
- Institute of Veterinary Physiological Chemistry, University of Leipzig, An den Tierkliniken 1, 04103 Leipzig, Germany
| | - Annalen Bleckmann
- Department of Haematology/Oncology, Georg-August-University, Robert-Koch-str. 40, 37075 Göttingen, Germany
- Deparment of Medical Statistics, Georg-August-University, Göttingen, Germany
| | - Matthias Schulz
- Department of Haematology/Oncology, Georg-August-University, Robert-Koch-str. 40, 37075 Göttingen, Germany
| | - Ross Bathgate
- Florey Neuroscience Institutes and Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC Australia
| | - Almuth Einspanier
- Institute of Veterinary Physiological Chemistry, University of Leipzig, An den Tierkliniken 1, 04103 Leipzig, Germany
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Ma J, Niu M, Yang W, Zang L, Xi Y. Role of relaxin-2 in human primary osteosarcoma. Cancer Cell Int 2013; 13:59. [PMID: 23758748 PMCID: PMC3698148 DOI: 10.1186/1475-2867-13-59] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 06/05/2013] [Indexed: 11/18/2022] Open
Abstract
Background The aim of this study was to clarify the clinicopathological outcome of serum relaxin-2 and tissues relaxin-2 expression levels in human primary osteosarcoma (OS), and to explore the roles of relaxin-2 inhibition and determine its possibility as a therapeutic target in human osteosarcoma. Methods Real-time quantitative RT-PCR assay was performed to detect the expression of relaxin-2 mRNA in 36 cases of human osteosarcoma tissue samples. Serum relaxin-2 levels was measured in ELISA-based method in the 36 cases of osteosarcoma and 50 cases of controls. MTT and TUNEL assay was used to detect cell proliferation and apoptosis after relaxin-2 knockdown with siRNA transfection for 48 hs in vitro. Matrigel invasion and angiogenesis formation assay was used to detect cell metastasis and angiogenesis with HMEC-1 endothelial cells after relaxin-2 knockdown with siRNA transfection for 48 hs in vitro. The effects of relaxin-2 knockdown with anti- relaxin-2 mAb treatment on growth, apoptosis angiogenesis formation and lung metastasis in vivo was analyzed. Results The results showed the levels of relaxin-2 mRNA expression in osteosarcoma tissue samples were significantly higher than those in the corresponding non-tumor tissue samples (P < 0.01), and the serum relaxin-2 levels were significantly higher in OS patients than in healthy controls (P < 0.01). The incidence of advanced stage cancer and hematogenous metastasis cancer in the high relaxin-2 mRNA expression group and high serum relaxin-2 levels groups was significantly higher than that in the low relaxin-2 expression group and low serum relaxin-2 levels groups, respectively. Knockdown of relaxin-2 by siRNA transfection in vitro inhibited proliferation, invasion and angiogenesis in vitro in MG-63 OS cells. In vivo, knockdown of relaxin-2 with anti- relaxin-2 mAb treatment inhibited tumor growth by 62% (P < 0.01) and the formation of lung metastases was inhibited by 72.4% (P < 0.01). Microvascular density was reduced more than 60% due to anti- relaxin-2 mAb treatment (P < 0.01). Conclusions Our study suggests that overexpression of relaxin-2 is critical for the metastasis of human osteosarcoma. Detection of relaxin-2 mRNA expression or serum relaxin-2 levels may provide the first biological prognostic marker for OS. Furthermore, relaxin-2 is the potential molecular target for osteosarcoma therapy.
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Affiliation(s)
- Jinfeng Ma
- Department of Spine, the Affiliated Hospital of Qingdao Medical College, Qingdao University, Qingdao 266003, R,P China.
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Wolf JM, Williams AE, Delaronde S, Leger R, Clifton KB, King KB. Relationship of serum relaxin to generalized and trapezial-metacarpal joint laxity. J Hand Surg Am 2013; 38:721-8. [PMID: 23474155 DOI: 10.1016/j.jhsa.2013.01.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 01/10/2013] [Accepted: 01/10/2013] [Indexed: 02/02/2023]
Abstract
PURPOSE The reproductive hormone relaxin acts to loosen pelvic ligaments in preparation for childbirth and is thought to be a mediator of joint laxity. The purpose of this study was to evaluate the correlation of serum relaxin with radiographic laxity at the trapezial-metacarpal joint and with generalized joint laxity. METHODS We enrolled 289 healthy subjects prospectively. Participants completed a demographic questionnaire and were examined for generalized joint hypermobility using the Beighton-Horan scale. Stress radiographs of the trapezial-metacarpal joint were obtained in 163 subjects (56%). Blood samples were collected, and serum relaxin was measured for 287 subjects using enzyme-linked immunosorbent assay for human relaxin-2. RESULTS The mean serum relaxin level among all subjects was 1.84 pg/mL (range, 0-45.25 pg/mL). Relaxin was not detectable in 166 of 287 samples, whereas the mean serum relaxin level among the 121 subjects with a detectable relaxin level (of 287 total relaxin samples) was 4.37 pg/mL (range, 0.46-45.25 pg/mL). Mean trapezial-metacarpal subluxation ratio scores were higher among those with a detectable relaxin level compared to those without a detectable relaxin level (0.34 vs 0.30 pg/mL). The average Beighton-Horan laxity score was 1.8 (range, 0-9). There was no correlation between generalized joint laxity measures and serum relaxin levels. CONCLUSIONS In a large volunteer population, we demonstrated a relationship between circulating relaxin and trapezial-metacarpal joint laxity. However, we were unable to show a direct link between serum relaxin and generalized joint laxity. TYPE OF STUDY/LEVEL OF EVIDENCE Prognostic II.
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Affiliation(s)
- Jennifer Moriatis Wolf
- Department of Orthopaedic Surgery and Department of Community Medicine and Health Care, University of Connecticut Health Center, Farmington, CT 06030-4038, USA.
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Anand-Ivell R, Dai Y, Ivell R. Neohormones as biomarkers of reproductive health. Fertil Steril 2013; 99:1153-60. [DOI: 10.1016/j.fertnstert.2012.12.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 12/14/2012] [Accepted: 12/14/2012] [Indexed: 12/13/2022]
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Bathgate RAD, Halls ML, van der Westhuizen ET, Callander GE, Kocan M, Summers RJ. Relaxin family peptides and their receptors. Physiol Rev 2013; 93:405-80. [PMID: 23303914 DOI: 10.1152/physrev.00001.2012] [Citation(s) in RCA: 379] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
There are seven relaxin family peptides that are all structurally related to insulin. Relaxin has many roles in female and male reproduction, as a neuropeptide in the central nervous system, as a vasodilator and cardiac stimulant in the cardiovascular system, and as an antifibrotic agent. Insulin-like peptide-3 (INSL3) has clearly defined specialist roles in male and female reproduction, relaxin-3 is primarily a neuropeptide involved in stress and metabolic control, and INSL5 is widely distributed particularly in the gastrointestinal tract. Although they are structurally related to insulin, the relaxin family peptides produce their physiological effects by activating a group of four G protein-coupled receptors (GPCRs), relaxin family peptide receptors 1-4 (RXFP1-4). Relaxin and INSL3 are the cognate ligands for RXFP1 and RXFP2, respectively, that are leucine-rich repeat containing GPCRs. RXFP1 activates a wide spectrum of signaling pathways to generate second messengers that include cAMP and nitric oxide, whereas RXFP2 activates a subset of these pathways. Relaxin-3 and INSL5 are the cognate ligands for RXFP3 and RXFP4 that are closely related to small peptide receptors that when activated inhibit cAMP production and activate MAP kinases. Although there are still many unanswered questions regarding the mode of action of relaxin family peptides, it is clear that they have important physiological roles that could be exploited for therapeutic benefit.
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Affiliation(s)
- R A D Bathgate
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences & Department of Pharmacology, Monash University, Victoria, Australia
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Zuckerman NS, Yu H, Simons DL, Bhattacharya N, Carcamo-Cavazos V, Yan N, Dirbas FM, Johnson DL, Schwartz EJ, Lee PP. Altered local and systemic immune profiles underlie lymph node metastasis in breast cancer patients. Int J Cancer 2012; 132:2537-47. [PMID: 23136075 DOI: 10.1002/ijc.27933] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 10/10/2012] [Indexed: 12/14/2022]
Abstract
Cancer-mediated immune dysfunction contributes to tumor progression and correlates with patient outcome. Metastasis to tumor draining lymph nodes (TDLNs) is an important step in breast cancer progression and is used to predict patient outcome and survival. Although lymph nodes are important immune organs, the role of immune cells in TDLNs has not been thoroughly investigated. We hypothesized that the host immune response in node negative (NN) patients is more intact and thereby can resist tumor invasion compared to node positive (NP) patients. As such, lymph node metastasis requires breakdown of the host immune response in addition to escape of cancer cells from the tumor. To investigate the immunological differences between NN and NP breast cancer patients, we purified and profiled immune cells from the three major compartments where cancer and immune cells interact: tumor, TDLNs and peripheral blood. Significant down-regulation of genes associated with immune-related pathways and up-regulation of genes associated with tumor-promoting pathways was consistently observed in NP patients' TDLNs compared to NN patients. Importantly, these signatures were seen even in NP patients' tumor-free TDLNs, suggesting that such immune changes are not driven solely by local tumor invasion. Furthermore, similar patterns were also observed in NP patients' tumor and blood immune cells, suggesting that immunological differences between NN and NP patients are systemic. Together, these findings suggest that alterations in overall immune function may underlie risk for LN metastasis in breast cancer patients.
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Affiliation(s)
- Neta S Zuckerman
- Department of Medicine, Division of Hematology, Stanford University School of Medicine, Stanford, CA, USA
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Human relaxin-2: historical perspectives and role in cancer biology. Amino Acids 2012; 43:1131-40. [DOI: 10.1007/s00726-012-1375-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 07/20/2012] [Indexed: 12/30/2022]
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Halls ML. Constitutive formation of an RXFP1-signalosome: a novel paradigm in GPCR function and regulation. Br J Pharmacol 2012; 165:1644-1658. [PMID: 21557732 DOI: 10.1111/j.1476-5381.2011.01470.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The classical second messenger cAMP is important in diverse physiological processes, where its spatial and temporal compartmentalization allows precise control over multiple cellular events. Within this context, G-protein-coupled receptors (GPCRs) govern specialized pools of cAMP, which are functionally specific for the unique cellular effects attributed to a particular system. The relaxin receptor, RXFP1, is a GPCR that exerts pleiotropic physiological effects including a potent anti-fibrotic response, increased cancer metastases, and has efficacy as a vasodilator in heart failure. On a cellular level, relaxin stimulation of RXFP1 results in the activation of multiple G-protein pathways affecting cAMP accumulation. Specificity and diversity in the cAMP signal generated by RXFP1 is controlled by differential G-protein coupling dependent upon the background of cellular expression, and cAMP compartmentalization. Further complexity in cAMP signalling results from the constitutive assembly of an RXFP1-signalosome, which specifically responds to low concentrations of relaxin, and activates a distinct cAMP pathway. The RXFP1-signalosome is a higher-order protein complex that facilitates receptor sensitivity to attomolar concentration of peptide, exhibits constitutive activity and dual coupling to G-proteins and β-arrestins and reveals a concentration-biased agonism mediated by relaxin. The specific and directed formation of GPCR-centered signalosomes allows an even greater spatial and temporal control of cAMP, thus rationalizing the considerable physiological scope of this ubiquitous second messenger.
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Affiliation(s)
- Michelle L Halls
- Department of Pharmacology, University of Cambridge, Cambridge, UK
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Lamp O, Honscha KU, Schweizer S, Heckmann A, Blaschzik S, Einspanier A. The metastatic potential of canine mammary tumours can be assessed by mRNA expression analysis of connective tissue modulators. Vet Comp Oncol 2011; 11:70-85. [PMID: 22235833 DOI: 10.1111/j.1476-5829.2011.00303.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metastases are the crucial factor for the prognosis of canine mammary tumours (CMTs). In women, the peptide hormone relaxin is linked with metastatic breast cancer. Therefore, the impact of relaxin and its receptors on matrix metalloproteinase (MMP) expression, metastatic disease and survival was analysed using qRT-PCR and immunohistochemistry of CMT samples from 59 bitches. The expression of relaxin and its receptor RXFP1 (relaxin family peptide receptor 1) was discovered on gene and protein levels. Intratumoural relaxin mRNA expression and relaxin plasma levels had no prognostic value. High mRNA levels RXFP1 were an independent marker of metastatic potential, with a more than 15-fold risk increase, and a predictor for shorter survival. Also, MMP-2 expression was associated with early death because of CMT. The mRNA expressions of relaxin, RXFP1 and MMP-2 were positively correlated indicating a common pathogenetic linkage. Thus, RXFP1 is proposed as a new early marker of metastatic potential in CMT and a possible therapeutic target.
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Affiliation(s)
- O Lamp
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, Germany
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Bialek J, Kunanuvat U, Hombach-Klonisch S, Spens A, Stetefeld J, Sunley K, Lippert D, Wilkins JA, Hoang-Vu C, Klonisch T. Relaxin Enhances the Collagenolytic Activity and In Vitro Invasiveness by Upregulating Matrix Metalloproteinases in Human Thyroid Carcinoma Cells. Mol Cancer Res 2011; 9:673-87. [DOI: 10.1158/1541-7786.mcr-10-0411] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dragoo JL, Castillo TN, Korotkova TA, Kennedy AC, Kim HJ, Stewart DR. Trends in serum relaxin concentration among elite collegiate female athletes. Int J Womens Health 2011; 3:19-24. [PMID: 21339934 PMCID: PMC3039005 DOI: 10.2147/ijwh.s14188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Indexed: 11/23/2022] Open
Abstract
PURPOSE This study was designed to investigate the relationship between serum relaxin concentration (SRC) and menstrual history and hormonal contraceptive use among elite collegiate female athletes. Evaluation of SRC in athletes is necessary, because relaxin has been associated with increased knee joint laxity and decreased anterior cruciate ligament (ACL) strength in animal models. METHODS National Collegiate Athletic Association Division I female athletes participating in sports at high risk for ACL tears - basketball, field hockey, gymnastics, lacrosse, soccer, and volleyball - were invited to participate. All participants completed a questionnaire about their menstrual history and hormonal contraceptive use. Venipuncture was performed to obtain samples of serum progesterone and relaxin. Samples were obtained during the mid-luteal phase from ovulating participants, and between the actual or projected cycle days 21 to 24, from anovulatory participants. Serum concentration of relaxin and progesterone was determined by ELISA and the data were analyzed using SPSS statistical software with significance set at P = 0.05. RESULTS 169 female athletes participated. The mean SRC among all participants was 3.08 ± 6.66 pg/mL). The mean SRC differed significantly between those participants using hormonal contraceptives (1.41 pg/mL) and those not using hormonal contraceptives (3.08 pg/mL, P = 0.002). Mean SRC was lowest among amenorrheic participants (1.02 pg/mL) and highest among oligomenorrheic participants (3.71 pg/mL) and eumenorrheic participants (3.06 pg/mL); these differences were not significant (P = 0.53). Mean serum progesterone concentration (SPC) differed significantly between those participants using hormonal contraceptives (2.80 ng/mL), and those not using hormonal contraceptives (6.99 ng/mL, P < 0.0001). CONCLUSIONS There is a positive correlation between serum progesterone and SRC and an attenuation of SRC with hormonal contraceptive use. Our results underscore the significant role that hormonal contraceptives can play in decreasing relaxin levels, if future investigations establish a link between relaxin levels and ligamentous injury among female athletes.
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Affiliation(s)
- Jason L Dragoo
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, CA, USA
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Bigazzi M, Bani D, Dschietzig T. Relaxin: not a health hazard but a promising therapeutic opportunity. Bone 2010; 47:832-3; author reply 834. [PMID: 20488260 DOI: 10.1016/j.bone.2010.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 05/13/2010] [Indexed: 11/29/2022]
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Beindorff N, Einspanier A. Luteotrophic effects of relaxin, chorionic gonadotrophin and FSH in common marmoset monkeys (Callithrix jacchus). Reproduction 2010; 139:923-30. [PMID: 20156883 DOI: 10.1530/rep-09-0257] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In early pregnant primates, relaxin (RLX) is highly upregulated within the corpus luteum (CL), suggesting that RLX may have an important role in the implantation of the blastocyst. Therefore, the aim of the present study was to investigate the local effects of RLX and gonadotrophins on the maintenance of the CL using an in vitro microdialysis system. CLs of common marmoset monkeys were collected by luteectomy during different stages of the luteal phase and early pregnancy. Each CL was perfused with either Ringer's solution alone or Ringer's solution supplemented with either porcine RLX (250, 500 and 1000 ng/ml) or gonadotrophins (50 IU/ml). Application of RLX provoked a significant luteal response of progesterone (P(4)) and oestradiol (E(2)) secretions during the mid-luteal phase (500 ng/ml: P(4) 54+/-42%, E(2) 24+/-11%; 1000 ng/ml: E(2) 16+/-13%), and especially during the late luteal phase (250 ng/ml: P(4) 53+/-10%; 500 ng/ml: P(4) 44+/-15%; 1000 ng/ml: P(4) 62+/-15%, E(2) 18+/-7%). The effects of RLX on steroid secretion were irrespective of the RLX dosages. While treatment with human chorionic gonadotrophin did not affect luteal steroid or RLX secretion, the application of FSH resulted in a significant increase in the secretion of both P(4) (20+/-8%) and E(2) (37+/-28%), and a prominent rise in RLX during early pregnancy. In conclusion, our results demonstrate that RLX and FSH have a luteotrophic function in the marmoset monkeys; moreover, FSH has a function beyond its traditional role just as a follicle-stimulating hormone.
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Affiliation(s)
- Nicola Beindorff
- Department of Reproductive Biology, German Primate Centre, Kellnerweg 4, 37077 Göttingen, Germany
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Ferlin A, Pepe A, Facciolli A, Gianesello L, Foresta C. Relaxin stimulates osteoclast differentiation and activation. Bone 2010; 46:504-13. [PMID: 19833242 DOI: 10.1016/j.bone.2009.10.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2009] [Revised: 10/05/2009] [Accepted: 10/06/2009] [Indexed: 12/21/2022]
Abstract
Relaxin is a pleiotropic hormone with actions in reproductive and non-reproductive tissues, and has a role in tumor biology. It can promote growth, differentiation and invasiveness of different tumors, especially those that give bone metastases, and relaxin serum concentrations are increased in patients with bone metastasis. In osteolytic metastasis the destruction of bone is mediated by osteoclasts that are multinucleated cells derived from hematopoietic progenitors. We found that human hematopoietic precursors and mature osteoclasts express the relaxin receptor RXFP1. Then, we investigated the effects of relaxin on the differentiation, activation and gene expression of osteoclasts during in vitro osteoclastogenesis from human hematopoietic progenitor cells. Relaxin alone was able to induce the multistep differentiation process of human osteoclastogenesis with timing similar to that obtained with the classical stimulators of osteoclastogenesis RANKL, M-CSF and PTH. The expression profile of several osteoclast genes was studied with quantitative RT-PCR during the entire process of osteoclastogenesis. This analysis showed that relaxin induced genes that are implicated in the differentiation, survival and activation of osteoclasts. Relaxin-induced osteoclasts were fully differentiated, positive for tartrate resistant acid phosphatase and vitronectin receptor, expressing a typical F-actin ring and able to resorb the bone. Furthermore, relaxin induced the expression of its specific receptor RXFP1 in osteoclasts. This study demonstrates for the first time that relaxin is a potent stimulator of osteoclastogenesis from hematopoietic precursors and regulates the activity of mature osteoclasts, opening new perspectives on the role of this hormone in bone physiology, diseases and metastasis.
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Affiliation(s)
- Alberto Ferlin
- Section of Clinical Pathology and Center for Male Gamete Cryopreservation, Department of Histology, Microbiology and Medical Biotechnologies, University of Padova, Via Gabelli 63, 35121 Padova, Italy
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Hossain MA, Samuel CS, Binder C, Hewitson TD, Tregear GW, Wade JD, Bathgate RAD. The chemically synthesized human relaxin-2 analog, B-R13/17K H2, is an RXFP1 antagonist. Amino Acids 2009; 39:409-16. [DOI: 10.1007/s00726-009-0454-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 12/17/2009] [Indexed: 01/06/2023]
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Pukrop T, Bleckmann A, Einspanier A, Binder C. Rapid progression of hormone receptor-negative breast cancer concomitant with ovarian stimulation--a paradoxon? Ann Oncol 2009; 20:2020-2. [PMID: 19773248 DOI: 10.1093/annonc/mdp457] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Wang CL, Wang CI, Liao PC, Chen CD, Liang Y, Chuang WY, Tsai YH, Chen HC, Chang YS, Yu JS, Wu CC, Yu CJ. Discovery of Retinoblastoma-Associated Binding Protein 46 as a Novel Prognostic Marker for Distant Metastasis in Nonsmall Cell Lung Cancer by Combined Analysis of Cancer Cell Secretome and Pleural Effusion Proteome. J Proteome Res 2009; 8:4428-40. [DOI: 10.1021/pr900160h] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Chih-Liang Wang
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Chun-I Wang
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Pao-Chi Liao
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Chi-De Chen
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Ying Liang
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Wen-Yu Chuang
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Ying-Huang Tsai
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Hua-Chien Chen
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Yu-Sun Chang
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Jau-Song Yu
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Chih-Ching Wu
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
| | - Chia-Jung Yu
- Division of Pulmonary Oncology and Interventional Bronchoscopy, Department of Thoracic Medicine, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan, Taiwan, Graduate Institute of Biomedical Sciences, Biology, Chang Gung University, Tao-Yuan, Taiwan, Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Molecular Medicine Research Center, Chang Gung University,
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Lamp O, Honscha KU, Jakob J, Lamp J, Schweizer S, Reischauer A, Gottschalk J, Hahn A, Ebert M, Rothemund S, Blaschzik S, Einspanier A. Investigation of the Local Expression of the Relaxin System in Canine Mammary Tumours. Reprod Domest Anim 2009; 44 Suppl 2:224-9. [DOI: 10.1111/j.1439-0531.2009.01385.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kietz S, Feng S, Agoulnik A, Hombach-Klonisch S. Estrogen and TCDD influence RLN2 gene activity in estrogen receptor-positive human breast cancer cells. Ann N Y Acad Sci 2009; 1160:367-73. [PMID: 19416221 DOI: 10.1111/j.1749-6632.2009.03836.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Expression of relaxin is increased in human breast cancer, and relaxin was shown to increase in vitro invasiveness through increased production and secretion of matrix metalloproteinases in human breast cancer cells. The role of estrogen in the promotion of breast cancer is well-known. The environmental toxin 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a known carcinogen but has been shown to have antiestrogenic effects in human breast cancer cells. In this study, we have employed real-time PCR and chromatin immunoprecipitation (ChIP) assays to investigate the influence of estrogen and TCDD on relaxin-1 (RLN1) and relaxin-2 (RLN2) gene expression in MCF-7 and T47D human breast cancer cells. Estrogen increased RLN2 transcripts in T47D and MCF-7 cells after just 4 h of exposure, whereas TCDD did not. RLN1 transcripts were only induced after 24 h of estrogen exposure. TCDD did have antiestrogenic activity and reduced the estrogen-mediated increase in RLN2 and RLN1 mRNA. The estrogen-mediated increase in RLN2 mRNA levels was not caused by changes in the mRNA stability. ChIP analysis revealed binding of estrogen receptor-alpha (ERalpha) to promoter sequences of the RLN2 gene. Thus, we provide evidence that RLN2 gene activity is directly regulated by activated ERalpha in human breast cancer cells and we show that activation of the arylhydrocarbon receptor by TCDD inhibits this regulation by estrogen.
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Affiliation(s)
- Silke Kietz
- University Medical Center Goettingen, Pediatric Clinic I, Goettingen, Germany
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Rosengren KJ, Bathgate RAD, Craik DJ, Daly NL, Haugaard-Jönsson LM, Hossain MA, Wade JD. Structural Insights into the Function of Relaxins. Ann N Y Acad Sci 2009; 1160:20-6. [DOI: 10.1111/j.1749-6632.2009.03833.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Einspanier A, Lieder K, Husen B, Ebert K, Lier S, Einspanier R, Unemori E, Kemper M. Relaxin Supports Implantation and Early Pregnancy in the Marmoset Monkey. Ann N Y Acad Sci 2009; 1160:140-6. [DOI: 10.1111/j.1749-6632.2009.03947.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Du G, Jin L, Han X, Song Z, Zhang H, Liang W. Naringenin: a potential immunomodulator for inhibiting lung fibrosis and metastasis. Cancer Res 2009; 69:3205-12. [PMID: 19318568 DOI: 10.1158/0008-5472.can-08-3393] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Patients with idiopathic pulmonary fibrosis have a high incidence of lung cancer and a worse prognosis for clinical treatment. A few molecules with antifibrosis properties have been shown promoting cancer progression in clinical trials. The objective of this study was to determine whether there is a similar tendency in mice as in human beings and whether these mice models may be used to find new therapeutic agents with antifibrotic properties but not cancer-promoting properties. We used bleomycin to induce pulmonary fibrosis in mice with or without naringenin treatment and measured the immune-associated lymphocytes and their secreted cytokines using flow cytometry and ELISA from lung tissue. Both passive and spontaneous metastatic models in bleomycin-treated C57BL/6 and BALB/c mice were used to test the hypothesis that mice with pulmonary fibrosis could have an increased risk of lung cancer and associated cancer progression. Here, we show that mice with lung fibrosis challenged using tumors show an increased incidence of lung metastasis and shorter life spans compared with the mice without lung fibrosis. A fibrotic environment in the lung results in increased abundance of transforming growth factor-beta1 and CD4(+)CD25(+)Foxp3(+) regulatory T cells and a decreased proportion of activated effector T cells. This grave immunosuppressive environment favors tumor localization and growth. Naringenin significantly reduces lung metastases in mice with pulmonary fibrosis and increases their survival by improving the immunosuppressive environment through down-regulating transforming growth factor-beta1 and reducing regulatory T cells. Naringenin could be an ideal therapeutic agent in the treatment of both cancer and fibrosis.
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Affiliation(s)
- Gangjun Du
- Protein and Peptide Pharmaceutical Laboratory, National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
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Perentes JY, McKee TD, Ley CD, Mathiew H, Dawson M, Padera TP, Munn LL, Jain RK, Boucher Y. In vivo imaging of extracellular matrix remodeling by tumor-associated fibroblasts. Nat Methods 2009; 6:143-5. [PMID: 19151720 DOI: 10.1038/nmeth.1295] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Accepted: 11/21/2008] [Indexed: 12/26/2022]
Abstract
Here we integrated multiphoton laser scanning microscopy and the registration of second harmonic generation images of collagen fibers to overcome difficulties in tracking stromal cell-matrix interactions for several days in live mice. We show that the matrix-modifying hormone relaxin increased tumor-associated fibroblast (TAF) interaction with collagen fibers by stimulating beta1-integrin activity, which is necessary for fiber remodeling by matrix metalloproteinases.
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Affiliation(s)
- Jean Y Perentes
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, 100 Blossom Street, Boston, Massachusetts 02114, USA
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Radestock Y, Hoang-Vu C, Hombach-Klonisch S. Relaxin reduces xenograft tumour growth of human MDA-MB-231 breast cancer cells. Breast Cancer Res 2008; 10:R71. [PMID: 18718015 PMCID: PMC2575545 DOI: 10.1186/bcr2136] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 07/31/2008] [Accepted: 08/21/2008] [Indexed: 11/22/2022] Open
Abstract
Introduction Relaxin levels are increased in cases of human breast cancer and has been shown to promote cancer cell migration in carcinoma cells of the breast, prostate gland and thyroid gland. In oestrogen receptor alpha-negative MDA-MB-231 human breast cancer cells, relaxin was shown to down-regulate the metastasis-promoting protein S100A4 (metastasin), a highly significant prognostic factor for poor survival in breast cancer patients. The cellular mechanisms of relaxin exposure in breast cancer cells are not fully understood. The aim of this study was to investigate short-term and long-term effects of relaxin on cancer cell motility and S100A4 expression and to determine the long-term effects of relaxin on in vivo tumour growth in an oestrogen-independent context. Method We have established stable transfectants of highly invasive oestrogen-receptor alpha-negative MDA-MB-231 human breast cancer cells with constitutive expression of bioactive H2-relaxin (MDA/RLN2). RLN2 secretion was determined by ELISA. Relaxin receptor RXFP1 (Relaxin-family-peptide) was detected by reverse transcription (RT) PCR and its activation was assessed by induction of cyclic adenosine monophosphate (cAMP). Stable MDA/RLN2 clones and RLN2 treated MDA-MB-231 cells were subjected to motility and in vitro-invasion assays. Proliferation was assessed in bromodeoxyuridine (BrdU) and MTT assays. S100A4 expression was determined by RT-PCR and Western blot. Specific small interfering RNA was employed to down-regulate relaxin receptor and S100A4. MDA/EGFP vector control and two MDA/RLN2 clones were injected subcutaneously in nude mice to determine tumour growth and cancer cell invasiveness in vivo. Xenograft tumour tissues were assessed by histology and immunohistochemistry and frozen tissues were used for the detection of S100A4 and RLN2. Results Short-term exposure to relaxin for 24 hours increased cell motility in a relaxin receptor-dependent manner. This increase in cell motility was mediated by S100A4. Long-term exposure to relaxin secreted from stable transfectants reduced cell motility and in vitro invasiveness. Relaxin decreased cell proliferation and down-regulated cellular S100A4 levels in MDA-MB-231 and T47D breast cancer cells. Stable MDA/RLN2 transfectants produced smaller xenograft tumours containing reduced S100A4 protein levels in vivo. Conclusion Our results indicate that long-term exposure to relaxin confers growth inhibitory and anti-invasive properties in oestrogen-independent tumours in vivo, which may in part be mediated through a down-regulation of S100A4.
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Affiliation(s)
- Yvonne Radestock
- Clinics of General, Visceral and Vascular Surgery, Magdeburger Str, 18, Martin-Luther-University Halle Wittenberg, 06097 Halle, Germany.
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Ganesh S, Gonzalez Edick M, Idamakanti N, Abramova M, Vanroey M, Robinson M, Yun CO, Jooss K. Relaxin-expressing, fiber chimeric oncolytic adenovirus prolongs survival of tumor-bearing mice. Cancer Res 2007; 67:4399-407. [PMID: 17483354 DOI: 10.1158/0008-5472.can-06-4260] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Selective replication of oncolytic viruses in tumor cells provides a promising approach for the treatment of human cancers. One of the limitations observed with oncolytic viruses currently used in the treatment of solid tumors is the inefficient spread of virus throughout the tumor mass following intratumoral injection. Data are presented showing that oncolytic adenoviruses expressing the relaxin gene and containing an Ad5/Ad35 chimeric fiber showed significantly enhanced transduction and increased virus spread throughout the tumor when compared with non-relaxin-expressing, Ad5-based viruses. The increased spread of such viruses throughout tumors correlated well with improved antitumor efficacy and overall survival in two highly metastatic tumor models. Furthermore, nonreplicating viruses expressing relaxin did not increase metastases, suggesting that high level expression of relaxin will not enhance metastatic spread of tumors. In summary, the data show that relaxin may play a role in rearranging matrix components within tumors, which helps recombinant oncolytic adenoviruses to spread effectively throughout the tumor mass and thereby increase the extent of viral replication within the tumor. Expressing relaxin from Ad5/Ad35 fiber chimeric adenoviruses may prove a potent and novel approach to treating patients with cancer.
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Affiliation(s)
- Shanthi Ganesh
- Cell Genesys, Inc., South San Francisco, California 94080, USA.
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Feng S, Agoulnik IU, Bogatcheva NV, Kamat AA, Kwabi-Addo B, Li R, Ayala G, Ittmann MM, Agoulnik AI. Relaxin promotes prostate cancer progression. Clin Cancer Res 2007; 13:1695-702. [PMID: 17363522 DOI: 10.1158/1078-0432.ccr-06-2492] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To understand the role of relaxin peptide in prostate cancer, we analyzed the expression of relaxin and its receptor in human prostate cancer samples, the effects of relaxin signaling on cancer cell phenotype in vitro, and the effects of increased serum relaxin concentrations on cancer progression in vivo. EXPERIMENTAL DESIGN The relaxin and its receptor leucine-rich repeat containing G protein-coupled receptor 7 (LGR7) expression were studied by quantitative reverse transcription-PCR (11 benign and 44 cancer tissue samples) and by relaxin immunohistochemistry using tissue microarrays containing 10 normal and 69 cancer samples. The effects of relaxin treatment and endogenous relaxin/LGR7 suppression via short interfering RNA in PC-3 and LNCaP cells were analyzed in vitro. The effect of transgenic relaxin overexpression [Tg(Rln1)] on cancer growth and survival was evaluated in autochthonous transgenic adenocarcinoma of the mouse prostate (TRAMP). RESULTS The relaxin mRNA expression was significantly higher in recurrent prostate cancer samples. In tissue microarrays of the 10 normal tissues, 8 had low staining in epithelial cells, whereas only 1 of 9 high-grade prostatic intraepithelial neoplasia lesions had low expression (P = 0.005) and only 29 of 65 cancers had low expression (P = 0.047). Stimulation with relaxin increased cell proliferation, invasiveness, and adhesion in vitro. The suppression of relaxin/LGR7 via short interfering RNAs decreased cell invasiveness by 90% to 95% and growth by 10% to 25% and increased cell apoptosis 0.6 to 2.2 times. The Tg(Rln1) TRAMP males had shorter median survival time, associated with the decreased apoptosis of tumor cells, compared with non-Tg(Rln1) TRAMP animals. CONCLUSIONS Relaxin signaling plays a role in prostate cancer progression.
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Affiliation(s)
- Shu Feng
- Department of Obstetrics and Gynecology, Molecular and Cellular Biology, and Pathology, Baylor College of Medicine, Houston, TX 77030, USA
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Ho TY, Yan W, Bagnell CA. Relaxin-induced matrix metalloproteinase-9 expression is associated with activation of the NF-κB pathway in human THP-1 cells. J Leukoc Biol 2007; 81:1303-10. [PMID: 17289798 DOI: 10.1189/jlb.0906556] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Matrix metalloproteinases (MMPs) and relaxin (RLX) are reported to play an important role in tissue remodeling and wound repair. When macrophages populate wound sites, they secrete biologically active substances, including MMPs. The transcription factor NF-kappaB is important in MMP gene regulation in macrophage cells. Thus, a monocyte/macrophage cell line, THP-1, was used to study the molecular mechanism of RLX action on MMP-2 and MMP-9 expression. After 24 h incubation with porcine RLX (100 ng/ml), conditioned media (CM) and THP-1 cells were collected. Gelatin zymography demonstrated an increase in pro-MMP-9 activity in response to RLX in CM, and no significant change in pro-MMP-2 expression was observed. Immunoblot analysis also revealed an increase in pro-MMP-9 in CM from RLX-treated THP-1 cells. Gel EMSA showed that NF-kappaB DNA-binding activity was elevated in THP-1 cells treated with RLX for 10 min and reached a peak at 30 min. The NF-kappaB DNA complex was supershifted using antibodies against NF-kappaB subunits p50 and p65. Increased expression of the p50 and p65 NF-kappaB subunits was also detected in THP-1 cells after RLX treatment. Incubation with RLX (90 min) reduced THP-1 expression of the NF-kappaB inhibitor protein, IkappaB-alpha. Using a specific NF-kappaB inhibitor, pyrrolidine dithiocarmate (PDTC) inhibited nuclear binding of NF-kappaB. Pre-exposure to PDTC suppressed pro-MMP-9 activity and protein levels in RLX-treated THP-1 cells. In conclusion, these data suggest that RLX-induced tissue remodeling through increasing MMP-9 expression is dependent on NF-kappaB activation.
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Affiliation(s)
- Teh-Yuan Ho
- Department of Animal Sciences, Rutgers University, New Brunswick, NJ 08901-8525, USA
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Thompson VC, Morris TGW, Cochrane DR, Cavanagh J, Wafa LA, Hamilton T, Wang S, Fazli L, Gleave ME, Nelson CC. Relaxin becomes upregulated during prostate cancer progression to androgen independence and is negatively regulated by androgens. Prostate 2006; 66:1698-709. [PMID: 16998820 DOI: 10.1002/pros.20423] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Relaxin is a potent peptide hormone normally secreted by the prostate. This study characterized relaxin expression during prostate cancer progression to androgen independence (AI), and in response to androgens. METHODS The prostate cancer cell line, LNCaP, was assayed by microarrays and confirmatory Northern analysis to assess changes in relaxin levels due to androgen treatment and in LNCaP xenografts following castration. Relaxin protein levels were examined by immunohistochemistry (IHC) in tissue microarrays of human prostate cancer samples following androgen ablation. RESULTS Relaxin levels decreased in a time and concentration-dependent manner due to androgens in vitro, and increased in xenografts post-castration. Relaxin increased in radical prostatectomy specimens after 6 months of androgen ablation and in AI tumors, was highest in bone metastases. CONCLUSIONS Relaxin is negatively regulated by androgens in vitro and in vivo, which correlates to clinical prostate cancer specimens following androgen ablation. The role of relaxin in angiogenesis and tissue remodeling suggests it may contribute to prostate cancer progression.
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Affiliation(s)
- Vanessa C Thompson
- The Prostate Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
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