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Huss L, Gulz-Haake I, Nilsson E, Tryggvadottir H, Nilsson L, Nodin B, Jirström K, Isaksson K, Jernström H. The Vitamin D Receptor as a Prognostic Marker in Breast Cancer-A Cohort Study. Nutrients 2024; 16:931. [PMID: 38612962 PMCID: PMC11013402 DOI: 10.3390/nu16070931] [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: 01/05/2024] [Revised: 03/15/2024] [Accepted: 03/17/2024] [Indexed: 04/14/2024] Open
Abstract
Previous research has indicated an association between the presence of the vitamin D receptor (VDR) in breast cancer tissue and a favorable prognosis. This study aimed to further evaluate the prognostic potential of VDR located in the nuclear membrane or nucleus (liganded). The VDR protein levels were analyzed using immunohistochemistry in tumor samples from 878 breast cancer patients from Lund, Sweden, included in the Breast Cancer and Blood Study (BCBlood) from October 2002 to June 2012. The follow-up for breast cancer events and overall survival was recorded until 30 June 2019. Univariable and multivariable survival analyses were conducted, both with complete case data and with missing data imputed using multiple imputation by chained equations (MICE). Tumor-specific positive nuclear membrane VDR(num) staining was associated with favorable tumor characteristics and a longer breast cancer free interval (BCFI; HR: 0.64; 95% CI: 0.44-0.95) and overall survival (OS; HR: 0.52; 95% CI: 0.34-0.78). Further analyses indicated that VDRnum status also was predictive of overall survival when investigated in relation to ER status. There were significant interactions between VDR and invasive tumor size (Pinteraction = 0.047), as well as mode of detection (Pinteraction = 0.049). VDRnum was associated with a longer BCFI in patients with larger tumors (HR: 0.36; 95% CI: 0.14-0.93) or clinically detected tumors (HR: 0.28; 95% CI: 0.09-0.83), while no association was found for smaller tumors and screening-detected tumors. Further studies are suggested to confirm our results and to evaluate whether VDR should and could be used as a prognostic and targetable marker in breast cancer diagnostics.
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Affiliation(s)
- Linnea Huss
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
- Department of Surgery, Helsingborg Hospital, 251 87 Helsingborg, Sweden
| | - Igis Gulz-Haake
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
| | - Emma Nilsson
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
| | - Helga Tryggvadottir
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
- Department of Hematology, Oncology, and Radiation Physics, Skåne University Hospital, 221 85 Lund, Sweden
| | - Linn Nilsson
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
- Department of Medical Physics and Engineering, Växjö Central Hospital and Department of Research and Development, Region Kronoberg, 352 34 Växjö, Sweden
| | - Björn Nodin
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
| | - Karin Jirström
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
| | - Karolin Isaksson
- Department of Clinical Sciences, Division of Surgery, Lund University, 221 85 Lund, Sweden;
- Department of Surgery, Kristianstad Hospital, 291 85 Kristianstad, Sweden
| | - Helena Jernström
- Department of Clinical Sciences, Division of Oncology, Lund University, 221 85 Lund, Sweden; (I.G.-H.); (E.N.); (H.T.); (L.N.); (B.N.); (K.J.)
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2
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Bird RP. Vitamin D and cancer. ADVANCES IN FOOD AND NUTRITION RESEARCH 2024; 109:92-159. [PMID: 38777419 DOI: 10.1016/bs.afnr.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The role of vitamin D in the prevention of chronic diseases including cancer, has received a great deal of attention during the past few decades. The term "Cancer" represents multiple disease states with varying biological complexities. The strongest link between vitamin D and cancer is provided by ecological and studies like observational, in preclinical models. It is apparent that vitamin D exerts diverse biological responses in a tissue specific manner. Moreover, several human factors could affect bioactivity of vitamin D. The mechanism(s) underlying vitamin D initiated anti-carcinogenic effects are diverse and includes changes at the muti-system levels. The oncogenic environment could easily corrupt the traditional role of vitamin D or could ensure resistance to vitamin D mediated responses. Several researchers have identified gaps in our knowledge pertaining to the role of vitamin D in cancer. Further areas are identified to solidify the role of vitamin D in cancer control strategies.
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Affiliation(s)
- Ranjana P Bird
- School of Health Sciences, University of Northern British Columbia, Prince George, BC, Canada.
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3
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Moyer CL, Brown PH. Targeting nuclear hormone receptors for the prevention of breast cancer. Front Med (Lausanne) 2023; 10:1200947. [PMID: 37583424 PMCID: PMC10424511 DOI: 10.3389/fmed.2023.1200947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/30/2023] [Indexed: 08/17/2023] Open
Abstract
Advancements in research have led to the steady decline of breast cancer mortality over the past thirty years. However, breast cancer incidence has continued to rise, resulting in an undue burden on healthcare costs and highlighting a great need for more effective breast cancer prevention strategies, including targeted chemo preventative agents. Efforts to understand the etiology of breast cancer have uncovered important roles for nuclear receptors in the development and progression of breast cancer. Targeted therapies to inhibit estrogen receptor (ER) and progesterone receptor (PR) signaling (selective ER modulators, aromatase inhibitors and selective PR modulators) have shown great promise for the treatment and prevention of hormone receptor (HR)-positive breast cancer. However, these drugs do not prevent HR-negative disease. Therefore, recent efforts have focused on novel targeted therapies with the potential to prevent both HR-positive and HR-negative breast cancer. Among these include drugs that target other nuclear receptors, such as retinoic acid receptor (RAR), retinoid X receptor (RXR) and vitamin D receptor (VDR). In this review we provide an overview of recent preclinical and clinical trials targeting members of the nuclear receptor superfamily for the prevention of breast cancer.
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Affiliation(s)
- Cassandra L. Moyer
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Powel H. Brown
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States
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Horas K, Abraham M, Ebert R, Weissenberger M, Maier GS, Jakob F, Rosenwald A, Rudert M. Vitamin D Receptor Expression Is Significantly Decreased in Bone Metastases Compared to Matched Primary Breast Cancer Tumours. Cancer Invest 2023; 41:133-143. [PMID: 36314889 DOI: 10.1080/07357907.2022.2142604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
There is ample evidence today that vitamin D signalling via the vitamin D receptor (VDR) plays a pivotal role in cancer growth and metastasis. The aim of this study was to analyse VDR expression of primary breast cancer and corresponding bone metastases tissue samples. Collectively, 15 sample pairs and 11 samples of patients that did not develop metastases were analysed histologically for VDR expression (n = 41). Overall, VDR expression was significantly lower in bone metastases compared to primary tumour samples (p < .0001). Downregulation of the VDR in breast cancer cells may define a critical turning point in oncogenesis that accelerates cancer cell dissemination and metastases.
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Affiliation(s)
- Konstantin Horas
- Department of Orthopaedic Surgery, Koenig-Ludwig-Haus, University of Wuerzburg, Wuerzburg, Germany.,Bernhard-Heine Centre for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
| | - Marc Abraham
- Bernhard-Heine Centre for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
| | - Regina Ebert
- Bernhard-Heine Centre for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
| | - Manuel Weissenberger
- Department of Orthopaedic Surgery, Koenig-Ludwig-Haus, University of Wuerzburg, Wuerzburg, Germany
| | - Gerrit S Maier
- Department of Orthopaedic Surgery, Pius-Hospital, Carl-von-Ossietzky-University, Oldenburg, Germany
| | - Franz Jakob
- Bernhard-Heine Centre for Locomotion Research, University of Wuerzburg, Wuerzburg, Germany
| | - Andreas Rosenwald
- Department of Pathology, University of Wuerzburg, Wuerzburg, Germany
| | - Maximilian Rudert
- Department of Orthopaedic Surgery, Koenig-Ludwig-Haus, University of Wuerzburg, Wuerzburg, Germany
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5
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Bone Metastases of Diverse Primary Origin Frequently Express the VDR (Vitamin D Receptor) and CYP24A1. J Clin Med 2022; 11:jcm11216537. [DOI: 10.3390/jcm11216537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Active vitamin D (1,25(OH)2D3) is known to exert direct anti-cancer actions on various malignant tissues through binding to the vitamin D receptor (VDR). These effects have been demonstrated in breast, prostate, renal and thyroid cancers, which all have a high propensity to metastasise to bone. In addition, there is evidence that vitamin D catabolism via 24-hydroxylase (CYP24A1) is altered in tumour cells, thus, reducing local active vitamin D levels in cancer cells. The aim of this study was to assess VDR and CYP24A1 expression in various types of bone metastases by using immunohistochemistry. Overall, a high total VDR protein expression was detected in 59% of cases (39/66). There was a non-significant trend of high-grade tumours towards the low nuclear VDR expression (p = 0.07). Notably, patients with further distant metastases had a reduced nuclear VDR expression (p = 0.03). Furthermore, a high CYP24A1 expression was detected in 59% (39/66) of bone metastases. There was a significant positive correlation between nuclear VDR and CYP24A1 expression (p = 0.001). Collectively, the VDR and CYP24A1 were widely expressed in a multitude of bone metastases, pointing to a potential role of vitamin D signalling in cancer progression. This is of high clinical relevance, as vitamin D deficiency is frequent in patients with bone metastases.
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Levels of Vitamin D and Expression of the Vitamin D Receptor in Relation to Breast Cancer Risk and Survival. Nutrients 2022; 14:nu14163353. [PMID: 36014861 PMCID: PMC9414444 DOI: 10.3390/nu14163353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
Abstract
Previous research suggests associations between low systemic levels of vitamin D and poor breast cancer prognosis and between expression of the vitamin D receptor (VDR) in breast cancers and survival. This study aimed to study associations between pre-diagnostic systemic levels of vitamin D and expression of VDR in subsequent breast tumors, and interactions between vitamin D and VDR on breast cancer mortality. Systemic vitamin D levels were measured in women within the Malmö Diet and Cancer Study. The expression of VDR was evaluated immunohistochemically in a tissue microarray of subsequent breast cancers. Statistical analyses followed. Women with high levels of vitamin D had a smaller proportion of VDR negative breast tumors compared to women with low levels of vitamin D (odds ratio: 0.68; 95% confidence interval: 0.41–1.13). Vitamin D levels were not found to modify the association between low VDR expression and high breast cancer mortality. To conclude, there was no statistical evidence for an association between pre-diagnostic levels of vitamin D and the expression of VDRs in breast cancer, nor did vitamin D levels influence the association between VDR expression and breast cancer mortality. Further studies are needed in order to establish the effects of vitamin D on breast cancer.
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Filip-Psurska B, Zachary H, Strzykalska A, Wietrzyk J. Vitamin D, Th17 Lymphocytes, and Breast Cancer. Cancers (Basel) 2022; 14:cancers14153649. [PMID: 35954312 PMCID: PMC9367508 DOI: 10.3390/cancers14153649] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary The effect of vitamin D3 on the development of breast cancer (favorable, ineffective, or even unfavorable) depends on many factors, such as age, menopausal status, or obesity. The immunomodulatory effect of vitamin D may be unfavorable in case of breast cancer progression. The effect of vitamin D on Th17 cells may depend on disease type and patients’ age. Our goal was to summarize the data available and to find indications of vitamin D treatment failure or success. Therefore, in this review, we present data describing the effects of vitamin D3 on Th17 cells, mainly in breast cancer. Abstract Vitamin D3, which is well known to maintain calcium homeostasis, plays an important role in various cellular processes. It regulates the proliferation and differentiation of several normal cells, including immune and neoplastic cells, influences the cell cycle, and stimulates cell maturation and apoptosis through a mechanism dependent on the vitamin D receptor. The involvement of vitamin D3 in breast cancer development has been observed in numerous clinical studies. However, not all studies support the protective effect of vitamin D3 against the development of this condition. Furthermore, animal studies have revealed that calcitriol or its analogs may stimulate tumor growth or metastasis in some breast cancer models. It has been postulated that the effect of vitamin D3 on T helper (Th) 17 lymphocytes is one of the mechanisms promoting metastasis in these murine models. Herein we present a literature review on the existing data according to the interplay between vitamin D, Th17 cell and breast cancer. We also discuss the effects of this vitamin on Th17 lymphocytes in various disease entities known to date, due to the scarcity of scientific data on Th17 lymphocytes and breast cancer. The presented data indicate that the effect of vitamin D3 on breast cancer development depends on many factors, such as age, menopausal status, or obesity. According to that, more extensive clinical trials and studies are needed to assess the importance of vitamin D in breast cancer, especially when no correlations seem to be obvious.
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Sousa S, Maia ML, Pestana D, Teixeira D, Ângelo-Dias M, Martins C, Borrego LM, Delerue-Matos C, Calhau C, Fernandes Domingues V, Faria A. Brominated flame retardants effect in MCF-7 cells: Impact on vitamin D pathway. J Steroid Biochem Mol Biol 2022; 219:106079. [PMID: 35143981 DOI: 10.1016/j.jsbmb.2022.106079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 01/20/2022] [Accepted: 02/06/2022] [Indexed: 11/22/2022]
Abstract
Brominated flame retardants (BFRs) are persistent environmental pollutants, allowing a constant human exposure which carries several health risks, including the occurrence of breast cancer and vitamin D deficiency. Vitamin D inhibits cell growth and is negatively associated with breast cancer risk. The effect of BFRs in breast cancer and vitamin D pathway is still poorly understood. MCF-7 cells were treated with hexabromocyclododecane (HBCD), 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (TBB), hexabromobenzene (HBB) and pentabromotoluene (PBT) using short and long-term exposure protocols. Viability, proliferation, migration, cell cycle and gene expression were assessed. Gene expression of hVDBP and hCYP2R1 was also evaluated in hepatocytes. Long-term exposure of MCF-7 cells to HBB increased cell proliferation and migration, consequently increasing MMP-9 expression. The vitamin D pathway was also altered by BFRs: cells appeared less prepared to activate and transport vitamin D and the signaling, action and inactivation mechanisms were diminished in the presence of BFRs. Untreated MCF-7 cells showed cell cycle arrest in phase G0/G1 in the presence of activated vitamin D. However, when MCF-7 cells were exposed to BFRs, cell cycle was arrested in phase G2/M, possibly due to DNA damage. Nonetheless, calcitriol seems to be able to mitigate the effect of some BFRs exposure, e.g. PBT.
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Affiliation(s)
- Sara Sousa
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, 4200-072, Porto, Portugal; Center for Research in Health Technologies and Information Systems, 4200-450, Porto, Portugal.
| | - Maria Luz Maia
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, 4200-072, Porto, Portugal; Center for Research in Health Technologies and Information Systems, 4200-450, Porto, Portugal.
| | - Diogo Pestana
- Center for Research in Health Technologies and Information Systems, 4200-450, Porto, Portugal; Nutrição e Metabolismo, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
| | - Diana Teixeira
- Center for Research in Health Technologies and Information Systems, 4200-450, Porto, Portugal; Nutrição e Metabolismo, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal; Comprehensive Health Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
| | - Miguel Ângelo-Dias
- Comprehensive Health Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal; CEDOC, Chronic Diseases Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
| | - Catarina Martins
- Comprehensive Health Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal; CEDOC, Chronic Diseases Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
| | - Luís Miguel Borrego
- Comprehensive Health Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal; CEDOC, Chronic Diseases Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal; Immunoallergy Department, Hospital da Luz - Lisboa, Av. Lusíada 100, 1500-650, Lisboa, Portugal.
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, 4200-072, Porto, Portugal.
| | - Conceição Calhau
- Center for Research in Health Technologies and Information Systems, 4200-450, Porto, Portugal; Nutrição e Metabolismo, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
| | - Valentina Fernandes Domingues
- REQUIMTE/LAQV-GRAQ, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, 4200-072, Porto, Portugal.
| | - Ana Faria
- Center for Research in Health Technologies and Information Systems, 4200-450, Porto, Portugal; Nutrição e Metabolismo, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal; Comprehensive Health Research Centre, NOVA Medical School Faculdade de Ciências Médicas Universidade Nova de Lisboa, 1169-056, Lisboa, Portugal.
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Putri SD, Nanza SRY, Widodo I, Purnomosari D. The Association of Intra-Tumoral and Stromal Vitamin D Receptor (VDR) Expressions with Molecular Subtypes and Clinicopathological Factors in Breast Carcinoma. Asian Pac J Cancer Prev 2022; 23:1169-1175. [PMID: 35485672 PMCID: PMC9375625 DOI: 10.31557/apjcp.2022.23.4.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/08/2022] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the association between intra-tumoral and stromal VDR expressions with molecular subtypes and clinicopathological factors. METHODS A total of 75 formalin-fixed paraffin embedded tissue samples were stained using immunohistochemical methods. The VDR expressions were measured by counting brown-stained nuclei in intra-tumoral and stromal areas. The association of VDR expression with molecular subtypes and clinopathological factors was examined. Statistical analysis was performed by chi square tests. RESULTS High intra-tumoral VDR expression was found in carcinomas with luminal molecular subtypes (p=0.039) and low histological degrees (p=0.035). High VDR expression in the stroma was found in breast carcinomas with large tumor sizes. CONCLUSIONS High intra-tumoral VDR expression is found in breast carcinomas with luminal subtypes and low histological grade (I/II). Both factors are known to have a good prognosis. These findings further strengthen the function of VDR as anti-tumorigenesis.
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Affiliation(s)
- Sukma Diani Putri
- Postgraduate Program of Biomedical Sciences, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia.
- Indramayu State Polytechnic.
| | - Siti Rahma Yunianda Nanza
- Postgraduate Program of Biomedical Sciences, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia.
| | - Irianiwati Widodo
- Department of Anatomic Pathology, Faculty of Medicine, Public Health and Nursing Universitas Gadjah Mada, Indonesia.
| | - Dewajani Purnomosari
- Department of Histology and Cell Biology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Indonesia.
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Trivedi T, Guise TA. Systemic effects of abnormal bone resorption on muscle, metabolism, and cognition. Bone 2022; 154:116245. [PMID: 34718221 DOI: 10.1016/j.bone.2021.116245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 12/11/2022]
Abstract
Skeletal tissue is dynamic, undergoing constant remodeling to maintain musculoskeletal integrity and balance in the human body. Recent evidence shows that apart from maintaining homeostasis in the local microenvironment, the skeleton systemically affects other tissues. Several cancer-associated and noncancer-associated bone disorders can disrupt the physiological homeostasis locally in the bone microenvironment and indirectly contribute to dysregulation of systemic body function. The systemic effects of bone on the regulation of distant organ function have not been widely explored. Recent evidence suggests that bone can interact with skeletal muscle, pancreas, and brain by releasing factors from mineralized bone matrix. Currently available bone-targeting therapies such as bisphosphonates and denosumab inhibit bone resorption, decrease morbidity associated with bone destruction, and improve survival. Bisphosphonates have been a standard treatment for bone metastases, osteoporosis, and cancer treatment-induced bone diseases. The extraskeletal effects of bisphosphonates on inhibition of tumor growth are known. However, our knowledge of the effects of bisphosphonates on muscle weakness, hyperglycemia, and cognitive defects is currently evolving. To be able to identify the molecular link between bone and distant organs during abnormal bone resorption and then treat these abnormalities and prevent their systemic effects could improve survival benefits. The current review highlights the link between bone resorption and its systemic effects on muscle, pancreas, and brain.
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Affiliation(s)
- Trupti Trivedi
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, United States of America
| | - Theresa A Guise
- Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, TX, United States of America.
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Jia R, Yang F, Yan P, Ma L, Yang L, Li L. Paricalcitol inhibits oxidative stress-induced cell senescence of the bile duct epithelium dependent on modulating Sirt1 pathway in cholestatic mice. Free Radic Biol Med 2021; 169:158-168. [PMID: 33872698 DOI: 10.1016/j.freeradbiomed.2021.04.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/30/2021] [Accepted: 04/13/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Clinical studies indicate that vitamin D receptor (VDR) expression is reduced in primary biliary cirrhosis patient livers. However, the mechanism by which activated VDR effect cholestatic liver injury remains unclear. METHODS Mice were injected intraperitoneally with the VDR agonist paricalcitol or a vehicle 3 days prior to bile duct ligation (BDL) and for 5 or 28 days after surgery. The analyses of liver morphology and necrotic areas were based on H&E staining. Serum biochemical indicators of liver damage were analyzed by commercial kits. The mechanisms of paricalcitol on cholestatic liver injury were determined by Western blot analysis. RESULTS Paricalcitol ameliorated the BDL-induced liver damage in mice. Paricalcitol increased the proliferation of BECs to promote the repair of the bile duct. Paricalcitol also reduced the BDL-induced oxidative stress level in the mice. Mechanistic analysis revealed that paricalcitol decreased the number of SA-β-gal-positive cells and downregulated the expression of p53, p21 and p16 proteins which was associated with reducing oxidative stress. Additionally, paricalcitol exerted the inhibitory effect of cell senescence was through reducing DNA damage and promoting DNA repair. Interesting, we found that paricalcitol prevented the downregulation of oxidative stress-induced Sirt1 expression in the BDL mice and t-BHP-induced BECs models. Moreover, paricalcitol suppressed cell senescence through a Sirt1-dependent pathway. These results were confirmed by antioxidant ALCAR and the Sirt1 inhibitor EX-527. CONCLUSION Paricalcitol alleviated cholestatic liver injury through promoting the repair of damaged bile ducts and reducing oxidative stress-induced cell senescence of the bile duct via modulating Sirt1 pathway.
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Affiliation(s)
- Rongjun Jia
- Department of Cell Biology, School of Medicine, Taizhou University, Taizhou, PR China; Department of Cell Biology, Jinzhou Medical University, Jinzhou, PR China.
| | - Fan Yang
- Department of Cell Biology, Jinzhou Medical University, Jinzhou, PR China.
| | - Pengfei Yan
- Department of Cell Biology, Jinzhou Medical University, Jinzhou, PR China.
| | - Liman Ma
- Department of Cell Biology, School of Medicine, Taizhou University, Taizhou, PR China.
| | - Longfei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun, PR China.
| | - Lihua Li
- Department of Cell Biology, School of Medicine, Taizhou University, Taizhou, PR China.
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12
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Xu H, Liu Z, Shi H, Wang C. Prognostic role of vitamin D receptor in breast cancer: a systematic review and meta-analysis. BMC Cancer 2020; 20:1051. [PMID: 33131491 PMCID: PMC7603743 DOI: 10.1186/s12885-020-07559-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023] Open
Abstract
Background A higher vitamin D intake improves the prognosis of early stage breast cancer (BC) patients. We hypothesized that vitamin D intake should refer to vitamin D receptor (VDR) expression. In order to prove this hypothesis, we first intend to evaluate the correlation between VDR expression and prognosis of BC patients using meta-analysis. Methods Literatures from PubMed, Embase, and the Cochrane Library (last update by May 20, 2020) were retrieved to find studies assessing the prognostic role of VDR in BC. The hazard ratios (HRs) for patients’ survival were extracted for pooled analyses. Subgroup analysis, sensitivity analysis and meta-regression were performed to explore the sources of heterogeneity. Results Seven articles containing eight studies with 2503 patients were enrolled. The results from the pooled analyses showed that the VDR expression generally had no relationship with BC patients’ overall survival (OS), disease-free survival (DFS), cancer-specific survival (CSS), and progression-free survival (PFS) (P > 0.05). Because only the number of studies exploring the relationship between VDR expression and OS is greater than five and there is heterogeneity, we explored the sources of heterogeneity of these studies. Subgroup analyses showed that the VDR expression in the nucleus had no relationship with OS, but high total VDR expression in the nucleus and cytoplasm was related to a better OS (pooled HR = 0.41; 95% CI = 0.18–0.95; P = 0.038). In addition, in subgroup of studies using cut-off values other than ‘immunoreactive score (IRS)>5’ and ‘IRS > 25′, high VDR expression was associated with a better OS (pooled HR = 0.47; 95% CI = 0.30–0.74; P = 0.001). Sensitivity analysis showed that the result pattern was not obviously affected by any single study. Meta-regression showed that the source of heterogeneity was not country (P = 0.657), pathological type (P = 0.614), molecular type (P = 0.423), staining location (P = 0.481), or cut-off value (P = 0.509). Conclusions The protein expression level of VDR in entire BC cells evaluated by immunohistochemistry is related to the OS of BC patients. It is expected that a more individualized vitamin D intake and a more accurate prognosis assessment can be recommended for BC patients based on the VDR expression. Of course, more preclinical and clinical studies are needed.
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Affiliation(s)
- Haiyan Xu
- Department of Medical Oncology, The Second People's Hospital of Lianyungang, 41 Hailian Road, Lianyungang, 222000, China
| | - Zhenhua Liu
- Department of Radiotherapy, The First People's Hospital of Yancheng, 66 Renmin Street, Yancheng, 224005, China
| | - Hongtai Shi
- Department of Radiotherapy, The Third People's Hospital of Yancheng, 75 Juchang Street, Yancheng, 224005, China.
| | - Chunbin Wang
- Department of Oncology, The Third People's Hospital of Yancheng, 75 Juchang Street, Yancheng, 224005, China.
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Muralidhar S, Filia A, Nsengimana J, Poźniak J, O'Shea SJ, Diaz JM, Harland M, Randerson-Moor JA, Reichrath J, Laye JP, van der Weyden L, Adams DJ, Bishop DT, Newton-Bishop J. Vitamin D-VDR Signaling Inhibits Wnt/β-Catenin-Mediated Melanoma Progression and Promotes Antitumor Immunity. Cancer Res 2019; 79:5986-5998. [PMID: 31690667 DOI: 10.1158/0008-5472.can-18-3927] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/12/2019] [Accepted: 10/01/2019] [Indexed: 11/16/2022]
Abstract
1α,25-Dihydroxyvitamin D3 signals via the vitamin D receptor (VDR). Higher serum vitamin D is associated with thinner primary melanoma and better outcome, although a causal mechanism has not been established. As patients with melanoma commonly avoid sun exposure, and consequent vitamin D deficiency might worsen outcomes, we interrogated 703 primary melanoma transcriptomes to understand the role of vitamin D-VDR signaling and replicated the findings in The Cancer Genome Atlas metastases. VDR expression was independently protective for melanoma-related death in both primary and metastatic disease. High tumor VDR expression was associated with upregulation of pathways mediating antitumor immunity and corresponding with higher imputed immune cell scores and histologically detected tumor-infiltrating lymphocytes. High VDR-expressing tumors had downregulation of proliferative pathways, notably Wnt/β-catenin signaling. Deleterious low VDR levels resulted from promoter methylation and gene deletion in metastases. Vitamin D deficiency (<25 nmol/L ∼ 10 ng/mL) shortened survival in primary melanoma in a VDR-dependent manner. In vitro functional validation studies showed that elevated vitamin D-VDR signaling inhibited Wnt/β-catenin signaling genes. Murine melanoma cells overexpressing VDR produced fewer pulmonary metastases than controls in tail-vein metastasis assays. In summary, vitamin D-VDR signaling contributes to controlling pro-proliferative/immunosuppressive Wnt/β-catenin signaling in melanoma and this is associated with less metastatic disease and stronger host immune responses. This is evidence of a causal relationship between vitamin D-VDR signaling and melanoma survival, which should be explored as a therapeutic target in primary resistance to checkpoint blockade. SIGNIFICANCE: VDR expression could potentially be used as a biomarker to stratify patients with melanoma that may respond better to immunotherapy.
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Affiliation(s)
- Sathya Muralidhar
- University of Leeds School of Medicine, Leeds, United Kingdom
- Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Anastasia Filia
- Centre for Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | | | - Joanna Poźniak
- University of Leeds School of Medicine, Leeds, United Kingdom
- Laboratory for Molecular Cancer Biology, VIB Center for Cancer Biology, KU Leuven, Leuven, Belgium
- Department of Oncology, KU Leuven, Leuven, Belgium
| | - Sally J O'Shea
- University of Leeds School of Medicine, Leeds, United Kingdom
- Faculty of Medicine and Health, University College Cork, Cork, Ireland
- Mater Private Hospital Cork, Citygate, Mahon, Cork, Ireland
| | - Joey M Diaz
- University of Leeds School of Medicine, Leeds, United Kingdom
| | - Mark Harland
- University of Leeds School of Medicine, Leeds, United Kingdom
| | | | - Jörg Reichrath
- Center for Clinical and Experimental Photodermatology, The Saarland University Hospital, Homburg, Germany
| | - Jonathan P Laye
- University of Leeds School of Medicine, Leeds, United Kingdom
| | - Louise van der Weyden
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom
| | - David J Adams
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom
| | - D T Bishop
- University of Leeds School of Medicine, Leeds, United Kingdom
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14
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Shirvani-Farsani Z, Behmanesh M. RNAi-mediated knockdown of VDR surprisingly suppresses cell growth in Jurkat T and U87-MG cells. Heliyon 2019; 5:e02837. [PMID: 31763486 PMCID: PMC6861732 DOI: 10.1016/j.heliyon.2019.e02837] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/09/2019] [Accepted: 11/11/2019] [Indexed: 12/14/2022] Open
Abstract
Vitamin D receptor (VDR) is a nuclear receptor for 1,25-Dihydroxyvitamin D3. VDR is expressed in many types of cells and involved in different biological processes such as immunity and inflammation. In addition, the role for VDR has been indicated in different diseases including multiple sclerosis (MS). In this study, we investigated the effects of VDR knockdown on growth, apoptosis, cell cycle, and some inflammatory gene expressions in Jurkat and U87-MG cell lines. The cell lines were transfected with plasmids encoding short hairpin RNA specific to VDR mRNA. Next, growth, apoptosis, and cell cycle were evaluated using MTT assay and annexin VDR along with flowcytometry. Then the mRNA expression of some genes was determined by real-time PCR at 24 h and 48 h after transfection. The cell growth and apoptosis of VDR-shRNA transfected Jurkat T cells and U87-MG cells were surprisingly changed compared with those in control cells. The expression of IL-10, NF-KB, TGF-β1, TGF-β R I, and TGF-β R II in two cell lines transfected with VDR-shRNA was significantly changed compared to control cells. VDR showed a new unexpected function to control cell growth in vitro. In addition, while VDR knocking down in two different cell lines of U87-MG and Jurkat cells had different effects on NF-kB and TGF-beta expression levels, its effects on cell growth and apoptosis were similar. This may suggest that these two different cell lines can show similar anti-proliferative effects by different downstream signalling pathways. Therefore, these data may be useful to design novel diagnostic and therapeutic methods for diseases such as MS.
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Affiliation(s)
- Zeinab Shirvani-Farsani
- Department of Cellular and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University G.C., Tehran, IR Iran
| | - Mehrdad Behmanesh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, IR Iran
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15
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Horas K, Zheng Y, Fong-Yee C, Macfarlane E, Manibo J, Chen Y, Qiao J, Gao M, Haydar N, McDonald MM, Croucher PI, Zhou H, Seibel MJ. Loss of the Vitamin D Receptor in Human Breast Cancer Cells Promotes Epithelial to Mesenchymal Cell Transition and Skeletal Colonization. J Bone Miner Res 2019; 34:1721-1732. [PMID: 30995345 DOI: 10.1002/jbmr.3744] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 03/24/2019] [Accepted: 04/04/2019] [Indexed: 02/06/2023]
Abstract
Expression of the vitamin D receptor (VDR) is thought to be associated with neoplastic progression. However, the role of the VDR in breast cancer metastasis to bone and the molecular mechanisms underlying this process are unknown. Employing a rodent model (female Balb/c nu/nu mice) of systemic metastasis, we here demonstrate that knockdown of the VDR strongly increases the metastatic potential of MDA-MB-231 human breast cancer cells to bone, resulting in significantly greater skeletal tumor burden. Ablation of VDR expression promotes cancer cell mobility (migration) and invasiveness, thereby facilitating skeletal colonization. Mechanistically, these changes in tumor cell behavior are attributable to shifts in the expression of proteins involved in cell adhesion, proliferation, and cytoskeletal organization, patterns characteristic for epithelial-to-mesenchymal cell transition (EMT). In keeping with these experimental findings, analyses of human breast cancer specimens corroborated the association between VDR expression, EMT-typical changes in protein expression patterns, and clinical prognosis. Loss of the VDR in human breast cancer cells marks a critical point in oncogenesis by inducing EMT, promoting the dissemination of cancer cells, and facilitating the formation of tumor colonies in bone. © 2019 American Society for Bone and Mineral Research.
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Affiliation(s)
- Konstantin Horas
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Yu Zheng
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Colette Fong-Yee
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Eugenie Macfarlane
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Jeline Manibo
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Yunzhao Chen
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Jeremy Qiao
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Mingxuan Gao
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Nancy Haydar
- Division of Bone Biology, Garvan Institute of Medical Research, and St. Vincent's Clinical School, University of New South Wales, Sydney, Australia
| | - Michelle M McDonald
- Division of Bone Biology, Garvan Institute of Medical Research, and St. Vincent's Clinical School, University of New South Wales, Sydney, Australia
| | - Peter I Croucher
- Division of Bone Biology, Garvan Institute of Medical Research, and St. Vincent's Clinical School, University of New South Wales, Sydney, Australia
| | - Hong Zhou
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
| | - Markus J Seibel
- Bone Research Program, ANZAC Research Institute and Concord Medical School, The University of Sydney, Sydney, Australia
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16
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Huss L, Butt ST, Borgquist S, Elebro K, Sandsveden M, Rosendahl A, Manjer J. Vitamin D receptor expression in invasive breast tumors and breast cancer survival. Breast Cancer Res 2019; 21:84. [PMID: 31358030 PMCID: PMC6664551 DOI: 10.1186/s13058-019-1169-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/15/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Vitamin D has been suggested to prevent and improve the prognosis of several cancers, including breast cancer. We have previously shown a U-shaped association between pre-diagnostic serum levels of vitamin D and risk of breast cancer-related death, with poor survival in patients with the lowest and the highest levels respectively, as compared to the intermediate group. Vitamin D exerts its functions through the vitamin D receptor (VDR), and the aim of the current study was to investigate if the expression of VDR in invasive breast tumors is associated with breast cancer prognosis. METHODS VDR expression was evaluated in a tissue microarray of 718 invasive breast tumors. Covariation between VDR expression and established prognostic factors for breast cancer was analyzed, as well as associations between VDR expression and breast cancer mortality. RESULTS We found that positive VDR expression in the nuclei and cytoplasm of breast cancer cells was associated with favorable tumor characteristics such as smaller size, lower grade, estrogen receptor positivity and progesterone receptor positivity, and lower expression of Ki67. In addition, both intranuclear and cytoplasmic VDR expression were associated with a low risk of breast cancer mortality, hazard ratios 0.56 (95% CI 0.34-0.91) and 0.59 (0.30-1.16) respectively. CONCLUSIONS This study found that high expression of VDR in invasive breast tumors is associated with favorable prognostic factors and a low risk of breast cancer death. Hence, a high VDR expression is a positive prognostic factor.
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Affiliation(s)
- Linnea Huss
- Department of Surgery, Lund University, Skåne University Hospital, SE-205 02, Malmö, Sweden.
| | - Salma Tunå Butt
- Department of Surgery, Lund University, Skåne University Hospital, SE-205 02, Malmö, Sweden
| | - Signe Borgquist
- Department of Oncology, Aarhus University, Aarhus University Hospital, DE-8000, Aarhus C, Denmark
| | - Karin Elebro
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85, Lund, Sweden
| | - Malte Sandsveden
- Department of Surgery, Lund University, Skåne University Hospital, SE-205 02, Malmö, Sweden
| | - Ann Rosendahl
- Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Skåne University Hospital, SE-221 85, Lund, Sweden
| | - Jonas Manjer
- Department of Surgery, Lund University, Skåne University Hospital, SE-205 02, Malmö, Sweden
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17
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Verma A, Cohen DJ, Schwartz N, Muktipaty C, Koblinski JE, Boyan BD, Schwartz Z. 24R,25-Dihydroxyvitamin D 3 regulates breast cancer cells in vitro and in vivo. Biochim Biophys Acta Gen Subj 2019; 1863:1498-1512. [PMID: 31125679 DOI: 10.1016/j.bbagen.2019.05.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/08/2019] [Accepted: 05/17/2019] [Indexed: 01/12/2023]
Abstract
BACKGROUND Epidemiological studies indicate high serum 25(OH)D3 is associated with increased survival in breast cancer patients. Pre-clinical studies attributed this to anti-tumorigenic properties of its metabolite 1α,25(OH)2D3. However, 1α,25(OH)2D3 is highly calcemic and thus has a narrow therapeutic window. Here we propose another metabolite, 24R,25(OH)2D3, as an alternative non-calcemic vitamin D3 supplement. METHODS NOD-SCID-IL2γR null female mice with MCF7 breast cancer xenografts in the mammary fat pad were treated with 24R,25(OH)2D3 and changes in tumor burden and metastases were assessed. ERα66+ MCF7 and T47D cells, and ERα66- HCC38 cells were treated with 24R,25(OH)2D3in vitro to assess effects on proliferation and apoptosis. Effects on migration and metastatic markers were assessed in MCF7. RESULTS 24R,25(OH)2D3 reduced MCF7 tumor growth and metastasis in vivo. In vitro results indicate that this was not due to an anti-proliferative effect; 24R,25(OH)2D3 stimulated DNA synthesis in MCF7 and T47D. In contrast, markers of invasion and metastasis were decreased. 24R,25(OH)2D3 caused dose-dependent increases in apoptosis in MCF7 and T47D, but not HCC38 cells. Inhibitors to palmitoylation, caveolae integrity, phospholipase-D, and estrogen receptors (ER) demonstrate that 24R,25(OH)2D3 acts on MCF7 cells through caveolae-associated, phospholipase D-dependent mechanisms via cross-talk with ERs. CONCLUSION These results indicate that 24R,25(OH)2D3 shows promise in treatment of breast cancer by stimulating tumor apoptosis and reducing metastasis. GENERAL SIGNIFICANCE 24R,25(OH)2D3 regulates breast cancer cell survival through ER-associated mechanisms similar to 24R,25(OH)2D3 effects on chondrocytes. Thus, 24R,25(OH)2D3 may modulate cell survival in other estrogen-responsive cell types, and its therapeutic potential should be investigated in ER-associated pathologies.
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Affiliation(s)
- Anjali Verma
- Department of Biomedical Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA.
| | - D Joshua Cohen
- Department of Biomedical Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA.
| | - Nofrat Schwartz
- Department of Otolaryngology, Meir Hospital, Tchernichovsky St 59, Kfar Saba 4428164, Israel; Sackler Faculty of Medicine, Tel Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel; Department of Otolaryngology/Head and Neck Surgery, University of North Caroline Chapel Hill, 170 Manning Drive, Chapel Hill, NC 27599, USA
| | - Chandana Muktipaty
- Department of Biomedical Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA.
| | - Jennifer E Koblinski
- Department of Pathology, Virginia Commonwealth University, 401 N 13th Street, Richmond, VA 23298, USA; Massey Cancer Center, 401 College Street, Virginia Commonwealth University, Richmond, VA 23298, USA.
| | - Barbara D Boyan
- Department of Biomedical Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA; Massey Cancer Center, 401 College Street, Virginia Commonwealth University, Richmond, VA 23298, USA; Wallace H. Coulter Department of Biomedical Engineering, 313 Ferst Drive NW, Georgia Institute of Technology, Atlanta, VA, USA.
| | - Zvi Schwartz
- Department of Biomedical Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, VA 23284, USA; Department of Periodontics, University of Texas Health Science Center at San Antonio, 8210 Floyd Curl Drive, San Antonio, TX 78229, USA.
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18
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Annalora AJ, Jozic M, Marcus CB, Iversen PL. Alternative splicing of the vitamin D receptor modulates target gene expression and promotes ligand-independent functions. Toxicol Appl Pharmacol 2018; 364:55-67. [PMID: 30552932 DOI: 10.1016/j.taap.2018.12.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/04/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
Abstract
Alternative splicing modulates gene function by creating splice variants with alternate functions or non-coding RNA activity. Naturally occurring variants of nuclear receptor (NR) genes with dominant negative or gain-of-function phenotypes have been documented, but their cellular roles, regulation, and responsiveness to environmental stress or disease remain unevaluated. Informed by observations that class I androgen and estrogen receptor variants display ligand-independent signaling in human cancer tissues, we questioned whether the function of class II NRs, like the vitamin D receptor (VDR), would also respond to alternative splicing regulation. Artificial VDR constructs lacking exon 3 (Dex3-VDR), encoding part of the DNA binding domain (DBD), and exon 8 (Dex8-VDR), encoding part of the ligand binding domain (LBD), were transiently transfected into DU-145 cells and stably-integrated into Caco-2 cells to study their effect on gene expression and cell viability. Changes in VDR promoter signaling were monitored by the expression of target genes (e.g. CYP24A1, CYP3A4 and CYP3A5). Ligand-independent VDR signaling was observed in variants lacking exon 8, and a significant loss of gene suppressor function was documented for variants lacking exon 3. The gain-of-function behavior of the Dex8-VDR variant was recapitulated in vitro using antisense oligonucleotides (ASO) that induce the skipping of exon 8 in wild-type VDR. ASO targeting the splice acceptor site of exon 8 significantly stimulated ligand-independent VDR reporter activity and the induction of CYP24A1 above controls. These results demonstrate how alternative splicing can re-program NR gene function, highlighting novel mechanisms of toxicity and new opportunities for the use of splice-switching oligonucleotides (SSO) in precision medicine.
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Affiliation(s)
- Andrew J Annalora
- Department of Environmental and Molecular Toxicology, Oregon State University, 1007 Agriculture & Life Sciences Building, Corvallis, OR 97331; USA.
| | - Marija Jozic
- Department of Environmental and Molecular Toxicology, Oregon State University, 1007 Agriculture & Life Sciences Building, Corvallis, OR 97331; USA
| | - Craig B Marcus
- Department of Environmental and Molecular Toxicology, Oregon State University, 1007 Agriculture & Life Sciences Building, Corvallis, OR 97331; USA
| | - Patrick L Iversen
- Department of Environmental and Molecular Toxicology, Oregon State University, 1007 Agriculture & Life Sciences Building, Corvallis, OR 97331; USA; LS Pharma, 884 Park St., Lebanon, OR 97355; USA
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Brook N, Brook E, Dharmarajan A, Dass CR, Chan A. Breast cancer bone metastases: pathogenesis and therapeutic targets. Int J Biochem Cell Biol 2018; 96:63-78. [DOI: 10.1016/j.biocel.2018.01.003] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/31/2017] [Accepted: 01/04/2018] [Indexed: 01/03/2023]
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20
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Yang L, Fan Y, Zhang X, Huang W, Ma J. 1,25(OH)2D3 treatment attenuates high glucose‑induced peritoneal epithelial to mesenchymal transition in mice. Mol Med Rep 2017; 16:3817-3824. [PMID: 28765896 PMCID: PMC5646959 DOI: 10.3892/mmr.2017.7096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 05/17/2017] [Indexed: 11/05/2022] Open
Abstract
It has been previously demonstrated that 1,25(OH)2D3 prevents the progression of epithelial to mesenchymal transition (EMT). However, it remains unclear whether 1,25(OH)2D3 has a role in peritoneal EMT stimulated by high glucose (HG) peritoneal dialysis fluid (PDF). The present study was performed to investigate the role of 1,25(OH)2D3 in the progression of EMT in the peritoneal mesothelium. A total of 35 male Kunming mice were randomly assigned into seven groups. In the control group, no diasylate or saline was infused. In the saline group, the mice were intraperitoneally injected with saline every day for 4 weeks. In the vitamin D group, the mice were subjected to intraperitoneal injections of 1 or 5 µg/kg of 1,25(OH)2D3 once weekly (every Monday) for 4 weeks. The peritoneal dialysis (PD) group were intraperitoneally injected with a conventional 4.25% PDF daily for 4 weeks. The vitamin D+PD group were intraperitoneally injected with 4.25% PDF daily and co‑treated with 1 µg/kg or 5 µg/kg 1,25(OH)2D3 once weekly, for 4 weeks. The peritoneal morphology and thickness were assessed by hematoxylin and eosin and Masson's trichrome staining. The peritoneal protein level of EMT markers (α‑smooth muscle actin, fibronectin and E‑cadherin), vitamin D receptor (VDR), B cell lymphoma‑2 (Bcl‑2), Bcl‑2‑associated X protein, transforming growth factor (TGF)‑β and Smad3 were evaluated by western blot analysis or immunohistochemical staining. Furthermore, apoptosis was assessed using a Caspase‑3 activity assay. The results demonstrated that after 4 weeks of intraperitoneal injections in mice, HG‑PDF decreased the expression of VDR, promoted EMT and apoptosis, and increased the thickness of the peritoneal membrane. However, 1,25(OH)2D3 treatment attenuated HG‑induced EMT and apoptosis, and decreased peritoneal thickness, which may partially occur through inhibition of transforming growth factor TGF‑β/Smad pathways via 1,25(OH)2D3 binding to VDR. The present study demonstrated that 1,25(OH)2D3 attenuated HG‑induced EMT and apoptosis in the peritoneal mesothelium through TGF‑β/Smad pathways. 1,25(OH)2D3 treatment in conjunction with HG dialysate may provide an improved solution to the peritoneal injury in the process of PD.
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Affiliation(s)
- Lina Yang
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yi Fan
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiuli Zhang
- Department of Nephrology, Benxi Center Hospital, China Medical University, Benxi, Liaoning 117000, P.R. China
| | - Wenyu Huang
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jianfei Ma
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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