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Li J, Wu J, Xie Y, Yu X. Bone marrow adipocytes and lung cancer bone metastasis: unraveling the role of adipokines in the tumor microenvironment. Front Oncol 2024; 14:1360471. [PMID: 38571500 PMCID: PMC10987778 DOI: 10.3389/fonc.2024.1360471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/08/2024] [Indexed: 04/05/2024] Open
Abstract
Bone is a common site of metastasis for lung cancer. The "seed and soil" hypothesis suggests that the bone marrow microenvironment ("soil") may provide a conducive survival environment for metastasizing tumor cells ("seeds"). The bone marrow microenvironment, comprising a complex array of cells, includes bone marrow adipocytes (BMAs), which constitute about 70% of the adult bone marrow volume and may play a significant role in tumor bone metastasis. BMAs can directly provide energy for tumor cells, promoting their proliferation and migration. Furthermore, BMAs participate in the tumor microenvironment's osteogenesis regulation, osteoclast(OC) regulation, and immune response through the secretion of adipokines, cytokines, and inflammatory factors. However, the precise mechanisms of BMAs in lung cancer bone metastasis remain largely unclear. This review primarily explores the role of BMAs and their secreted adipokines (leptin, adiponectin, Nesfatin-1, Resistin, chemerin, visfatin) in lung cancer bone metastasis, aiming to provide new insights into the mechanisms and clinical treatment of lung cancer bone metastasis.
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Affiliation(s)
- Jian Li
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
- Department of Endocrinology and Metabolism, Shandong Second Provincial General Hospital, Jinan, China
| | - Jialu Wu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yanni Xie
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism/Department of Endocrinology and Metabolism, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
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2
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Lee EJ, Lee KJ, Jung S, Park KH, Park SI. Mobilization of monocytic myeloid-derived suppressor cells is regulated by PTH1R activation in bone marrow stromal cells. Bone Res 2023; 11:22. [PMID: 37085481 PMCID: PMC10121701 DOI: 10.1038/s41413-023-00255-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 01/23/2023] [Accepted: 03/01/2023] [Indexed: 04/23/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are bone marrow (BM)-derived immunosuppressive cells in the tumor microenvironment, but the mechanism of MDSC mobilization from the BM remains unclear. We investigated how BM stromal cell activation by PTH1R contributes to MDSC mobilization. PTH1R activation by parathyroid hormone (PTH) or PTH-related peptide (PTHrP), a tumor-derived counterpart, mobilized monocytic (M-) MDSCs from murine BM without increasing immunosuppressive activity. In vitro cell-binding assays demonstrated that α4β1 integrin and vascular cell adhesion molecule (VCAM)-1, expressed on M-MDSCs and osteoblasts, respectively, are key to M-MDSC binding to osteoblasts. Upon PTH1R activation, osteoblasts express VEGF-A and IL6, leading to Src family kinase phosphorylation in M-MDSCs. Src inhibitors suppressed PTHrP-induced MDSC mobilization, and Src activation in M-MDSCs upregulated two proteases, ADAM-17 and MMP7, leading to VCAM1 shedding and subsequent disruption of M-MDSC tethering to osteoblasts. Collectively, our data provide the molecular mechanism of M-MDSC mobilization in the bones of tumor hosts.
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Affiliation(s)
- Eun Jung Lee
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Republic of Korea
- The BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kyoung Jin Lee
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Republic of Korea
- The BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seungpil Jung
- Division of Breast and Endocrine Surgery, Department of Surgery, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Kyong Hwa Park
- Division of Oncology and Hematology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Serk In Park
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, Republic of Korea.
- The BK21 Graduate Program, Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea.
- Vanderbilt Center for Bone Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.
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3
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Song MK, Park SI, Cho SW. Circulating biomarkers for diagnosis and therapeutic monitoring in bone metastasis. J Bone Miner Metab 2023; 41:337-344. [PMID: 36729305 DOI: 10.1007/s00774-022-01396-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 12/22/2022] [Indexed: 02/03/2023]
Abstract
Bone is a frequent site of metastasis for multiple types of solid tumors in organs such as prostate, breast, lung, etc., accounting for significant morbidities and mortalities of afflicted patients. One of the major problems of bone metastasis is lack of biomarkers for early diagnosis and for monitoring therapeutic responses. Medical imaging modalities such as computerized tomography, magnetic resonance imaging, and radioactive isotope-based bone scans are currently standard clinical practices, yet these imaging techniques are limited to detect early lesions or to accurately monitor the metastatic disease progression during standard and/or experimental therapies. Accordingly, development of novel blood biomarkers rationalizes extensive basic research and clinical development. This review article covers the up-to-date information on protein- and cell-based biomarkers of bone metastasis that are currently used in the clinical practices and also are under development.
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Affiliation(s)
- Min-Kyoung Song
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, South Korea
| | - Serk In Park
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, 73 Inchon-Ro, Seongbuk-Gu, Seoul, 02841, South Korea.
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Sun Wook Cho
- Department of Internal Medicine, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, South Korea.
- Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, South Korea.
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Park YR, Su XD, Shrestha SK, Yang SY, Soh Y. 2E-Decene-4,6-diyn-1-ol-acetate inhibits osteoclastogenesis through mitogen-activated protein kinase-c-Fos-NFATc1 signaling pathways. Clin Exp Pharmacol Physiol 2021; 49:341-349. [PMID: 34729812 DOI: 10.1111/1440-1681.13609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 10/14/2021] [Accepted: 10/29/2021] [Indexed: 11/27/2022]
Abstract
An imbalance of osteoclasts and osteoblasts can result in a variety of bone-related diseases, including osteoporosis. Thus, decreasing the activity of osteoclastic bone resorption is the main therapeutic method for osteoporosis. 2E-Decene-4, 6-diyn-1-ol-acetate (DDA) is a natural bioactive compound with anti-inflammatory and anti-cancer properties. However, its effects on osteoclastogenesis are unknown. Murine bone marrow-derived macrophages (BMMs) or RAW264.7 cells were treated with DDA, followed by evaluation of cell viability, RANKL-induced osteoclast differentiation, and pit formation assay. Effects of DDA on RANKL-induced phosphorylation of MAPKs were assayed by Western blot analysis. Expression of osteoclast-specific genes was examined with reverse transcription-PCR (RT-PCR) and Western blot analysis. In this study, DDA significantly inhibited RANKL-induced osteoclast differentiation in RAW264.7 cells as well as in BMMs without cytotoxicity. DDA also strongly blocked the resorbing capacity of BMM on calcium phosphate-coated plates. DDA inhibited RANKL-induced phosphorylation of ERK, JNK, and p38 MAPKs, as well as expression of c-Fos and NFATc1, which are essential transcription factors for osteoclastogenesis. In addition, DDA decreased expression levels of osteoclastogenesis-specific genes, including matrix metalloproteinase-9 (MMP-9), tartrate-resistant acid phosphatase (TRAP), and receptor activator of NF-κB (RANK) in RANKL-induced RAW264.7 cells. Collectively, these findings indicated that DDA attenuates RANKL-induced osteoclast formation by suppressing the MAPKs-c-Fos-NFATc1 signaling pathway and osteoclast-specific genes. These results indicate that DDA may be a potential candidate for bone diseases associated with abnormal osteoclast formation and function.
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Affiliation(s)
- Young Ran Park
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Xiang-Dong Su
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou, 510275, China
| | - Saroj Kuma Shrestha
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | - Seo Young Yang
- Department of Pharmaceutical Engineering, Sangji University, Wonju, 26339, Republic of Korea
| | - Yunjo Soh
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Republic of Korea.,Department of Pharmacology, School of Pharmacy, Jeonbuk National University, Jeonju, 54896, Republic of Korea
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Zhao YJ, Gao ZC, He XJ, Li J. The let-7f-5p-Nme4 pathway mediates tumor necrosis factor α-induced impairment in osteogenesis of bone marrow-derived mesenchymal stem cells. Biochem Cell Biol 2021; 99:488-498. [PMID: 34297624 DOI: 10.1139/bcb-2020-0281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Although tumor necrosis factor α (TNF-α)-mediated inflammation significantly impacts osteoporosis, the mechanisms underlying the osteogenic differentiation defects of bone marrow-derived mesenchymal stem cells (BM-MSCs) caused by TNF-α remain poorly understood. We found that TNF-α stimulation of murine BM-MSCs significantly upregulated the expression levels of several microRNAs (miRNAs), including let-7f-5p, but this increase was significantly reversed by treatment with the kinase inhibitor BAY 11-7082. To study gain- or loss of function, we transfected cells with an miRNA inhibitor or miRNA mimic. We then demonstrated that let-7f-5p impaired osteogenic differentiation of BM-MSCs in the absence and presence of TNF-α, as evidenced by alkaline phosphatase and alizarin red staining as well as quantitative assays of the mRNA levels of bone formation marker genes in differentiated BM-MSCs. Moreover, let-7f-5p targets the 3' untranslated region of Nucleoside diphosphate kinase 4 (Nme4) mRNA and negatively regulates Nme4 expression in mouse BM-MSCs. Ectopic expression of Nme4 completely reversed the inhibitory effects of the let-7f-5p mimic on osteogenic differentiation of mouse BM-MSCs. Furthermore, inhibition of let-7f-5p or overexpression of Nme4 in BM-MSCs restored in-vivo bone formation in an ovariectomized animal model. Collectively, our work indicates that let-7f-5p is involved in TNF-α-mediated reduction of BM-MSC osteogenesis via targeting Nme4.
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Affiliation(s)
- Ying-Jie Zhao
- Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.,Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Zheng-Chao Gao
- Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.,Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Xi-Jing He
- Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.,Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Jing Li
- Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.,Department of Orthopaedics, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Sun S, Xu B, Zhang Q, Zhao CS, Ma R, He J, Zhang Y. The Early Results of Vertebral Pathological Compression Fracture of Extra- nodal Lymphoma with HIV-positive Patients Treated by Percutaneous Kyphoplasty. Curr HIV Res 2021; 18:248-257. [PMID: 32386494 DOI: 10.2174/1570162x18666200510010207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Vertebral pathological compression fracture involving extra-nodal lymphoma impacts negatively on the quality of life of HIV-positive patients. The choice of a safe and effective approach to palliative care in this condition remains a challenge. OBJECTIVE The purpose of this study was to investigate the safety and efficacy of percutaneous kyphoplasty (PKP) in the treatment of vertebral pathological compression fracture of extra-nodal lymphoma in HIV-positive patients. METHODS A retrospective analysis, from January 2016 to August 2019, was performed on 7 HIVpositive patients, 3 males and 4 females, with extra-nodal lymphoma with a vertebral pathological compression fracture. The patients were treated using percutaneous kyphoplasty in our hospital. Preoperative assessment of the patients was conducted regarding their hematological profile, biochemical indicators, liver and kidney function, blood coagulation function, CD4+T lymphocyte count and viral load. Subsequently, the patients were placed on highly active antiretroviral therapy (HAART) and rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (RCHOP) regimen. Besides, antibiotics, nutritional support and immune-modulating drugs were also administered, rationally. Postoperatively, the height of the anterior edge of the injured vertebrae, Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) values were evaluated. Patients were also monitored for any complications related to the operation. RESULTS The average CD4+T cell count for the patients was 164 (range 114 ~247 / ul), while the viral load was 26,269 (range 5,765 ~82,321 copies/ul). All patients received nutritional and immune support and registered significant improvements in the levels of ALB and Hb (P<0.05). In all cases, the operation was uneventful with neither cement leakage nor toxic reactions observed. Similarly, no opportunistic infections, other complications or deaths were reported. The height of the anterior vertebral body and the ODI score of the injured vertebrae were significantly improved immediately after surgery (P<0.05). Compared to the preoperative VAS (7.71±1.11), postoperative values were significantly reduced immediately after surgery (3.85±0.90) and at 2 weeks, 1 month and 6 months post-surgery: 2.71±0.76, 3.29±1.11, and 4.00±0.82, respectively (P<0.01). CONCLUSION Supported with appropriate perioperative treatment measures, PKP is safe and effective in the treatment of pathological vertebral compression fracture due to extra-nodal lymphoma in HIV-positive patients.
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Affiliation(s)
- Sheng Sun
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
| | - Biao Xu
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
| | - Qiang Zhang
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
| | - Chang-Song Zhao
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
| | - Rui Ma
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
| | - Jie He
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
| | - Yao Zhang
- Department of Orthopedics, Beijing Ditan Hospital, Capital Medical University, No.8, Jingshun East Street, Chaoyang District, Beijing 100015, China
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7
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Wu S, Pan Y, Mao Y, Chen Y, He Y. Current progress and mechanisms of bone metastasis in lung cancer: a narrative review. Transl Lung Cancer Res 2021; 10:439-451. [PMID: 33569325 PMCID: PMC7867745 DOI: 10.21037/tlcr-20-835] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lung cancer is a kind of malignant tumor with rapid progression and poor prognosis. Distant metastasis has been the main cause of mortality among lung cancer patients. Bone is one of the most common sites. Among all lung cancer patients with bone metastasis, most of them are osteolytic metastasis. Some serious clinical consequences like bone pain, pathological fractures, spinal instability, spinal cord compression and hypercalcemia occur as well. Since the severity of bone metastasis in lung cancer, it is undoubtedly necessary to know how lung cancer spread to bone, how can we diagnose it and how can we treat it. Here, we reviewed the process, possible mechanisms, diagnosis methods and current treatment of bone metastasis in lung cancer. We divided the process of bone metastasis in lung cancer into three steps: tumor invasion, tumor cell migration and invasion in bone tissue. It may be influenced by genetic factors, microenvironment and other adhesion-related factors. Imaging examination, laboratory examination, and pathological examination are used to diagnose lung cancer metastasis to bone. Surgery, radiotherapy, targeted therapy, bisphosphonate, radiation therapy and chemotherapy are the common clinical treatment methods currently. We also found some problems remained to be solved. For example, drugs for skeletal related events mainly target on osteoclasts at present, which increase the ratio of patients in osteoporosis and fractures in the long term. In all, this review provides the direction for future research on bone metastasis in lung cancer.
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Affiliation(s)
- Shengyu Wu
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Yue Pan
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Yanyu Mao
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China.,Medical School, Tongji University, Shanghai, China
| | - Yu Chen
- Spine Center, Orthopedic department, Shanghai Changzheng Hospital, Shanghai, China
| | - Yayi He
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
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8
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Lee KH, Lee KJ, Kim TY, Hutomo F, Sun HJ, Cheon GJ, Park SI, Cho SW, Im SA. Circulating Osteocalcin-Positive Cells as a Novel Diagnostic Biomarker for Bone Metastasis in Breast Cancer Patients. J Bone Miner Res 2020; 35:1838-1849. [PMID: 32379371 DOI: 10.1002/jbmr.4041] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/15/2020] [Accepted: 04/27/2020] [Indexed: 12/31/2022]
Abstract
Current diagnosis of bone metastasis (BM) in breast cancer relies on structural changes of bone that occur only in the advanced stage. A sensitive biomarker for detecting early progression of bone metastasis is urgently required. We performed clinical and preclinical studies to investigate diagnostic value of circulating osteocalcin-positive cells (cOC) in breast cancer bone metastasis. Metastatic breast cancer patients (n = 92) with or without bone metastasis (ie, BM+ or BM- ) were enrolled, and cOC were measured at enrollment. Patients were followed up for bone metastasis progression for 18 months. BM+ patients (n = 59) were divided into progressive (PD) or stable disease (SD) groups, based on imaging studies at the end of the 18-month study. The PD group had higher baseline cOC compared with the SD group. Furthermore, higher cOC resulted in reduced BM progression-free survival. Three patients in the BM- group (n = 33) developed new BM during the 18-month study, and these patients had a higher level of baseline cOC compared with the remaining BM- patients. In murine preclinical studies, cOC increased at early time points when micro-metastases were evident only by histology but undetectable by bioluminescence imaging. Also, cOC levels predicted the progression of BM and correlated significantly with BM tumor burden. cOC increased in the early phase of breast cancer BM and can predict BM progression, supporting cOC as a potential novel biomarker. © 2020 American Society for Bone and Mineral Research.
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Affiliation(s)
- Kyung-Hun Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea.,Cancer Research Institute, Seoul National University, Seoul, South Korea
| | - Kyoung Jin Lee
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, South Korea
| | - Tae-Yong Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea.,Cancer Research Institute, Seoul National University, Seoul, South Korea
| | - Febby Hutomo
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyun Jin Sun
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Gi Jeong Cheon
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Serk In Park
- Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, South Korea.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Sun Wook Cho
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Seock-Ah Im
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea.,Cancer Research Institute, Seoul National University, Seoul, South Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
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Abstract
Cancers are not composed merely of cancer cells alone; instead, they are complex 'ecosystems' comprising many different cell types and noncellular factors. The tumour stroma is a critical component of the tumour microenvironment, where it has crucial roles in tumour initiation, progression, and metastasis. Most anticancer therapies target cancer cells specifically, but the tumour stroma can promote the resistance of cancer cells to such therapies, eventually resulting in fatal disease. Therefore, novel treatment strategies should combine anticancer and antistromal agents. Herein, we provide an overview of the advances in understanding the complex cancer cell-tumour stroma interactions and discuss how this knowledge can result in more effective therapeutic strategies, which might ultimately improve patient outcomes.
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10
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Sema4D expression and secretion are increased by HIF-1α and inhibit osteogenesis in bone metastases of lung cancer. Clin Exp Metastasis 2019; 36:39-56. [DOI: 10.1007/s10585-018-9951-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/17/2018] [Indexed: 12/11/2022]
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11
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Lee C, Whang YM, Campbell P, Mulcrone PL, Elefteriou F, Cho SW, Park SI. Dual targeting c-met and VEGFR2 in osteoblasts suppresses growth and osteolysis of prostate cancer bone metastasis. Cancer Lett 2018; 414:205-213. [PMID: 29174801 DOI: 10.1016/j.canlet.2017.11.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/14/2017] [Accepted: 11/17/2017] [Indexed: 11/15/2022]
Abstract
Prostate cancer characteristically induces osteoblastic bone metastasis, for which no therapies are available. A dual kinase inhibitor of c-Met and VEGFR-2 (cabozantinib) was shown to reduce prostate cancer growth in bone, with evidence for suppressing osteoblastic activity. However, c-Met and VEGFR2 signaling in osteoblasts in the context of bone metastasis remain unclear. Here we show using cultured osteoblasts that hepatocyte growth factor (HGF) and VEGF-A increased receptor activator of NFκB ligand (RANKL) and M-CSF, two essential factors for osteoclastogenesis. Insulin-like growth factor-1 (IGF1) also increased RANKL and M-CSF via c-Met transactivation. The conditioned media from IGF1-, HGF-, or VEGFA-treated osteoblasts promoted osteoclastogenesis that was reversed by inhibiting c-Met and/or VEGFR2 in osteoblasts. In vivo experiments used cabozantinib-resistant prostate cancer cells (PC-3 and C4-2B) to test the effects of c-Met/VEGFR2 inhibition specifically in osteoblasts. Cabozantinib (60 mg/kg, 3 weeks) suppressed tumor growth in bone and reduced expression of RANKL and M-CSF and subsequent tumor-induced osteolysis. Collectively, inhibition of c-Met and VEGFR2 in osteoblasts reduced RANKL and M-CSF expression, and associated with reduction of tumor-induced osteolysis, suggesting that c-Met and VEGFR2 are promising therapeutic targets in bone metastasis.
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Affiliation(s)
- Changki Lee
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Center for Bone Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Young Mi Whang
- Department of Urology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Preston Campbell
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Center for Bone Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Patrick L Mulcrone
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Center for Bone Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Florent Elefteriou
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Center for Bone Biology, Vanderbilt University School of Medicine, Nashville, TN, USA; Departments of Human and Molecular Genetics, and Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Sun Wook Cho
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Serk In Park
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA; Vanderbilt Center for Bone Biology, Vanderbilt University School of Medicine, Nashville, TN, USA; Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul, South Korea; The BK21 Plus Program, Korea University College of Medicine, Seoul, South Korea.
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12
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Affiliation(s)
- Won Young Lee
- Department of Endocrinology and Metabolism, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
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