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Mo Z, Li R, Cao C, Li Y, Zheng S, Wu R, Xue J, Hu J, Meng H, Zhai H, Huang W, Zheng F, Zhou B. Splicing factor SNRPA associated with microvascular invasion promotes hepatocellular carcinoma metastasis through activating NOTCH1/Snail pathway and is mediated by circSEC62/miR-625-5p axis. ENVIRONMENTAL TOXICOLOGY 2023; 38:1022-1037. [PMID: 36715182 DOI: 10.1002/tox.23745] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/10/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Microvascular invasion (MVI) is a crucial risk factor related to the metastasis of hepatocellular carcinoma (HCC), but the underlying mechanisms remain to be revealed. Characterizing the inherent mechanisms of MVI may aid in the development of effective treatment strategies to improve the prognosis of HCC patients with metastasis. Through the Gene Expression Omnibus (GEO) database, we identified that small nuclear ribonucleoprotein polypeptide A (SNRPA) was related to MVI in HCC. SNRPA was overexpressed in MVI-HCC and correlated with poor patient survival. Mechanistically, SNRPA promoted the epithelial-mesenchymal transition (EMT)-like process for HCC cells to accelerate metastasis by activating the NOTCH1/Snail pathway in vitro and in vivo. Importantly, circSEC62 upregulated SNRPA expression in HCC cells via miR-625-5p sponging. Taking these results together, our study identified a novel regulatory mechanism among SNRPA, miR-625-5p, circSEC62 and the NOTCH1/Snail pathway in HCC, which promoted metastasis of HCC and may provide effective suggestions for improving the prognosis of HCC patients with metastasis.
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Affiliation(s)
- Zhaohong Mo
- Fifth Department of General Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Ruixi Li
- Department of Hepatobiliary and Pancreatic Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Chuanlin Cao
- Fifth Department of General Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Yanjie Li
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shiyang Zheng
- Department of Head and Neck surgery, Cancer Center of Guangzhou Medical University, Guangzhou, China
| | - Runxin Wu
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Jinhua Xue
- Department of Physiology, School of Basic Medical Sciences, Gannan Medical University, Ganzhou, China
| | - Jingxiong Hu
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hongyu Meng
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hang Zhai
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Weiling Huang
- Department of Breast Oncology, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Fang Zheng
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Boxuan Zhou
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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Kamil G, Karolina S, Aleksandra S, Filip B, Marta P, Artur B, Marcin M. Alterations in Stem Cell Populations in IGF-1 Deficient Pediatric Patients Subjected to Mecasermin (Increlex) Treatment. Stem Cell Rev Rep 2023; 19:392-405. [PMID: 36269524 PMCID: PMC9902328 DOI: 10.1007/s12015-022-10457-2] [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] [Accepted: 09/26/2022] [Indexed: 02/07/2023]
Abstract
Pathway involving insulin-like growth factor 1 (IGF-1) plays significant role in growth and development. Crucial role of IGF-1 was discovered inter alia through studies involving deficient patients with short stature, including Laron syndrome individuals. Noteworthy, despite disturbances in proper growth, elevated values for selected stem cell populations were found in IGF-1 deficient patients. Therefore, here we focused on investigating role of these cells-very small embryonic-like (VSEL) and hematopoietic stem cells (HSC), in the pathology. For the first time we performed long-term observation of these populations in response to rhIGF-1 (mecasermin) therapy. Enrolled pediatric subjects with IGF-1 deficiency syndrome were monitored for 4-5 years of rhIGF-1 treatment. Selected stem cells were analyzed in peripheral blood flow cytometrically, together with chemoattractant SDF-1 using immunoenzymatic method. Patients' data were collected for correlation of experimental results with clinical outcome. IGF-1 deficient patients were found to demonstrate initially higher levels of VSEL and HSC compared to healthy controls, with their gradual decrease in response to therapy. These changes were significantly associated with SDF-1 plasma levels. Correlations of VSEL and HSC were also reported in reference to growth-related parameters, and IGF-1 and IGFBP3 values. Noteworthy, rhIGF-1 was shown to efficiently induce development of Laron patients achieving at least proper rate of growth (compared to healthy group) in 80% of subjects. In conclusion, here we provided novel insight into stem cells participation in IGF-1 deficiency in patients. Thus, we demonstrated basis for future studies in context of stem cells and IGF-1 role in growth disturbances.
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Affiliation(s)
- Grubczak Kamil
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Jerzego Waszyngtona 13, 15-269, Bialystok, Poland.
| | - Stożek Karolina
- Department of Pediatrics, Endocrinology and Diabetes With a Cardiology Unit, Medical University of Bialystok, Jerzego Waszyngtona 17, 15-275, Bialystok, Poland
| | - Starosz Aleksandra
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Jerzego Waszyngtona 13, 15-269, Bialystok, Poland
| | - Bossowski Filip
- Department of Pediatrics, Endocrinology and Diabetes With a Cardiology Unit, Medical University of Bialystok, Jerzego Waszyngtona 17, 15-275, Bialystok, Poland
| | - Pasławska Marta
- Department of Pediatrics, Endocrinology and Diabetes With a Cardiology Unit, Medical University of Bialystok, Jerzego Waszyngtona 17, 15-275, Bialystok, Poland
| | - Bossowski Artur
- Department of Pediatrics, Endocrinology and Diabetes With a Cardiology Unit, Medical University of Bialystok, Jerzego Waszyngtona 17, 15-275, Bialystok, Poland.
| | - Moniuszko Marcin
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Jerzego Waszyngtona 13, 15-269, Bialystok, Poland.,Department of Allergology and Internal Medicine, Medical University of Bialystok, Marii Sklodowskiej-Curie 24A, 15-276, Bialystok, Poland
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Gavin KM, Sullivan TM, Maltzahn JK, Rahkola JT, Acosta AS, Kohrt WM, Majka SM, Klemm DJ. Hematopoietic stem cells produce intermediate lineage adipocyte progenitors that simultaneously express both myeloid and mesenchymal lineage markers in adipose tissue. Adipocyte 2021; 10:394-407. [PMID: 34404315 PMCID: PMC8381847 DOI: 10.1080/21623945.2021.1957290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Some adipocytes are produced from bone marrow hematopoietic stem cells. In vitro studies previously indicated that these bone marrow-derived adipocytes (BMDAs) were generated from adipose tissue macrophage (ATM) that lose their hematopoietic markers and acquire mesenchymal markers prior to terminal adipogenic differentiation. Here we interrogated whether this hematopoietic-to-mesenchymal transition drives BMDA production In vitro. We generated transgenic mice in which the lysozyme gene promoter (LysM) indelibly labeled ATM with green fluorescent protein (GFP). We discovered that adipose stroma contained a population of LysM-positive myeloid cells that simultaneously expressed hematopoietic/myeloid markers (CD45 and CD11b), and mesenchymal markers (CD29, PDGFRa and Sca-1) typically found on conventional adipocyte progenitors. These cells were capable of adipogenic differentiation In vitro and In vitro, while other stromal populations deficient in PDGFRa and Sca-1 were non-adipogenic. BMDAs and conventional adipocytes expressed common fat cell markers but exhibited little or no expression of hematopoietic and mesenchymal progenitor cell markers. The data indicate that BMDAs are produced from ATM simultaneously expressing hematopoietic and mesenchymal markers rather than via a stepwise hematopoietic-to-mesenchymal transition. Because BMDA production is stimulated by high fat feeding, their production from hematopoietic progenitors may maintain adipocyte production when conventional adipocyte precursors are diminished.
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Affiliation(s)
- Kathleen M. Gavin
- Eastern Colorado Veterans Administration Geriatric Research, Education and Clinical Center (GRECC), Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Timothy M. Sullivan
- Eastern Colorado Veterans Administration Geriatric Research, Education and Clinical Center (GRECC), Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
- Cardiovascular Pulmonary Research Laboratory, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Joanne K. Maltzahn
- Eastern Colorado Veterans Administration Geriatric Research, Education and Clinical Center (GRECC), Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
- Cardiovascular Pulmonary Research Laboratory, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jeremy T. Rahkola
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Alistair S. Acosta
- Flow Cytometry Shared Resource, University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Wendy M. Kohrt
- Eastern Colorado Veterans Administration Geriatric Research, Education and Clinical Center (GRECC), Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Susan M. Majka
- Cardiovascular Pulmonary Research Laboratory, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Biomedical Research, National Jewish Health, Denver, CO, USA
- Charles C. Gates Center for Regenerative Medicine and Stem Cell Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Dwight J. Klemm
- Eastern Colorado Veterans Administration Geriatric Research, Education and Clinical Center (GRECC), Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
- Cardiovascular Pulmonary Research Laboratory, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Charles C. Gates Center for Regenerative Medicine and Stem Cell Biology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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Yao H, He S. Multi‑faceted role of cancer‑associated adipocytes in the tumor microenvironment (Review). Mol Med Rep 2021; 24:866. [PMID: 34676881 PMCID: PMC8554381 DOI: 10.3892/mmr.2021.12506] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 09/15/2021] [Indexed: 01/08/2023] Open
Abstract
Adipocytes are a type of stromal cell found in numerous different tissues that serve an active role in the tumor microenvironment. Cancer-associated adipocytes (CAAs) display a malignant phenotype and are found at the invasive tumor front, which mediates the crosstalk network between adipocytes (the precursor cells that will become cancer-associated adipocytes in the future) and cancer cells. The present review covers the mechanisms of adipocytes in the development of cancer, including metabolic reprogramming, chemotherapy resistance and adipokine regulation. Furthermore, the potential mechanisms involved in the adipocyte-cancer cell cycle in various types of cancer, including breast, ovarian, colon and rectal cancer, are discussed. Deciphering the complex network of CAA-cancer cell crosstalk will provide insights into tumor biology and optimize therapeutic strategies.
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Affiliation(s)
- Huihui Yao
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Songbing He
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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Lechner J, Schulz T, Lejeune B, von Baehr V. Jawbone Cavitation Expressed RANTES/CCL5: Case Studies Linking Silent Inflammation in the Jawbone with Epistemology of Breast Cancer. BREAST CANCER-TARGETS AND THERAPY 2021; 13:225-240. [PMID: 33859496 PMCID: PMC8044077 DOI: 10.2147/bctt.s295488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/09/2021] [Indexed: 12/04/2022]
Abstract
Background The role of signaling pathways as part of the cell-cell communication within cancer progression becomes a crucial area. Chemokine RANTES (regulated upon activation, normal T-cell expressed and secreted), also known as the chemokine C-C motif ligand 5 (CCL5) (R/C), is a protein on which cancer research focus due to its link with aggressive cancer development. Objective Research on fatty-degenerative osteonecrosis in jawbone (FDOJ) shows striking overexpression of R/C in these areas. Here we try to elucidate a potential link between jawbone-derived R/C and breast cancer (BC) and compare these findings by immunohistochemical staining. Methods Thirty-nine FDOJ samples extracted from 39 BC patients and samples from 19 healthy control were analyzed for R/C expression using bead-based Luminex® analysis. R/C levels from 5 BC patients were measured in serum before and after FDOJ surgery. Bone density, histology, R/C expression, and immunohistochemistry were analysed in 4 clinical case studies. The R/C staining of two FDOJ BC patients is compared with the immunohistochemical staining of BC cell preparations. Results A high overexpression of R/C was seen in all FDOJ samples. R/C levels in serum were statistically downregulated after FDOJ surgery (p=0.0241). Discussion R/C induced “silent inflammation” in BC is widely discussed in scientific papers along with R/C triggering of different signaling pathways, which might be a key point in the development of BC. Conclusion Hypothesis that FDOJ may serve as a trigger of BC progression through R/C overexpression was set by the authors, who thus inspire clinicians to make aware of FDOJ throughout the dental and medical community in BC cases.
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Le Naour A, Rossary A, Vasson MP. EO771, is it a well-characterized cell line for mouse mammary cancer model? Limit and uncertainty. Cancer Med 2020; 9:8074-8085. [PMID: 33026171 PMCID: PMC7643677 DOI: 10.1002/cam4.3295] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 12/16/2022] Open
Abstract
Among mouse mammary tumor models, syngeneic cell lines present an advantage for the study of immune response. However, few of these models are well characterized. The tumor line EO771 is derived from spontaneous breast cancer of C57BL/6 mice. These cells are widely used but are referenced under different names: EO771, EO 771, and E0771. The characteristics of the EO771 cells are well described but some data are contradictory. This cell line presents the great interest of developing an immunocompetent neoplastic model using an orthotopic implantation reflecting the mammary tumors encountered in breast cancer patients. This review presents the phenotype characteristics of EO771 and its sensitivity to nutrients and different therapies such as radiotherapy, chemotherapy, hormone therapy, and immunotherapy.
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Affiliation(s)
- Augustin Le Naour
- UMR 1019 Human Nutrition Unit, ECREIN team, University of Clermont Auvergne, INRAE, CRNH-Auvergne, Clermont-Ferrand, France
| | - Adrien Rossary
- UMR 1019 Human Nutrition Unit, ECREIN team, University of Clermont Auvergne, INRAE, CRNH-Auvergne, Clermont-Ferrand, France
| | - Marie-Paule Vasson
- UMR 1019 Human Nutrition Unit, ECREIN team, University of Clermont Auvergne, INRAE, CRNH-Auvergne, Clermont-Ferrand, France.,Department of Nutrition, Gabriel Montpied University Hospital, Jean Perrin Cancer Centre, Clermont-Ferrand, France
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Zhao C, Wu M, Zeng N, Xiong M, Hu W, Lv W, Yi Y, Zhang Q, Wu Y. Cancer-associated adipocytes: emerging supporters in breast cancer. J Exp Clin Cancer Res 2020; 39:156. [PMID: 32787888 PMCID: PMC7425140 DOI: 10.1186/s13046-020-01666-z] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 08/04/2020] [Indexed: 02/08/2023] Open
Abstract
Breast cancer (BC) is a malignant breast tumor confronted with high invasion, metastasis and recurrence rate, and adipocytes are the largest components in breast tissue. The aberrant adipocytes, especially the BC-neighbored cancer-associated adipocytes (CAAs), are found in the invasive front of BC. CAAs present a vicious phenotype compared with mature mammary adipocytes and mediate the crosstalk network between adipocytes and BC cells. By releasing multiple adipokines such as leptin, adiponectin, interleukin (IL)-6, chemokine ligand 2 (CCL2) and chemokine ligand 5 (CCL5), CAAs play essential roles in favor of proliferation, angiogenesis, dissemination, invasion and metastasis of BC. This article reviews the recent existing CAAs studies on the functions and mechanisms of adipocytes in the development of BC, including adipokine regulating, metabolic reprogramming, extracellular matrix (ECM) remodeling, microRNAs (miRNAs) and immune cell adjusting. Besides, adipocyte secretome and cellular interactions are implicated in the intervention to BC therapy and autologous fat grafting of breast reconstruction. Therefore, the potential functions and mechanisms of CAAs are very important for unveiling BC oncogenesis and progress. Deciphering the complex network between CAAs and BC is critical for designing therapeutic strategies and achieving the maximum therapeutic effects of BC.
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Affiliation(s)
- Chongru Zhao
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Min Wu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Ning Zeng
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Mingchen Xiong
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Weijie Hu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Wenchang Lv
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Yi Yi
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China
| | - Qi Zhang
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
| | - Yiping Wu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, China.
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Abstract
Development of novel and effective therapeutics for treating various cancers is probably the most congested and challenging enterprise of pharmaceutical companies. Diverse drugs targeting malignant and nonmalignant cells receive clinical approval each year from the FDA. Targeting cancer cells and nonmalignant cells unavoidably changes the tumor microenvironment, and cellular and molecular components relentlessly alter in response to drugs. Cancer cells often reprogram their metabolic pathways to adapt to environmental challenges and facilitate survival, proliferation, and metastasis. While cancer cells' dependence on glycolysis for energy production is well studied, the roles of adipocytes and lipid metabolic reprogramming in supporting cancer growth, metastasis, and drug responses are less understood. This Review focuses on emerging mechanisms involving adipocytes and lipid metabolism in altering the response to cancer treatment. In particular, we discuss mechanisms underlying cancer-associated adipocytes and lipid metabolic reprogramming in cancer drug resistance.
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9
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Human Immune System Increases Breast Cancer-Induced Osteoblastic Bone Growth in a Humanized Mouse Model without Affecting Normal Bone. J Immunol Res 2019; 2019:4260987. [PMID: 31211147 PMCID: PMC6532310 DOI: 10.1155/2019/4260987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/30/2019] [Accepted: 04/24/2019] [Indexed: 01/10/2023] Open
Abstract
Bone metastases are prevalent in many common cancers such as breast, prostate, and lung cancers, and novel therapies for treating bone metastases are needed. Human immune system-engrafted models are used in immuno-oncology (IO) studies for subcutaneous cancer cell or patient-derived xenograft implantations that mimic primary tumor growth. Novel efficacy models for IO compounds on bone metastases need to be established. The study was performed using CIEA NOG (NOG) mice engrafted with human CD34+ hematopoietic stem cells (huNOG) and age-matched immunodeficient NOG mice. Bone phenotyping was performed to evaluate baseline differences. BT-474 human breast cancer cells were inoculated into the tibia bone marrow, and cancer-induced bone changes were monitored by X-ray imaging. Bone content and volume were analyzed by dual X-ray absorptiometry and microcomputed tomography. Tumor-infiltrating lymphocytes (TILs) and the expression of immune checkpoint markers were analyzed by immunohistochemistry. Bone phenotyping showed no differences in bone architecture or volume of the healthy bones in huNOG and NOG mice, but the bone marrow fat was absent in huNOG mice. Fibrotic areas were observed in the bone marrow of some huNOG mice. BT-474 tumors induced osteoblastic bone growth. Bone lesions appeared earlier and were larger, and bone mineral density was higher in huNOG mice. huNOG mice had a high number of human CD3-, CD4-, and CD8-positive T cells and CD20-positive B cells in immune-related organs. A low number of TILs and PD-1-positive cells and low PD-L1 expression were observed in the BT-474 tumors at the endpoint. This study reports characterization of the first breast cancer bone growth model in huNOG mice. BT-474 tumors represent a “cold” tumor with a low number of TILs. This model can be used for evaluating the efficacy of combination treatments of IO therapies with immune-stimulatory compounds or therapeutic approaches on bone metastatic breast cancer.
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Ignacio RMC, Lee ES, Wilson AJ, Beeghly-Fadiel A, Whalen MM, Son DS. Obesity-Induced Peritoneal Dissemination of Ovarian Cancer and Dominant Recruitment of Macrophages in Ascites. Immune Netw 2018; 18:e47. [PMID: 30619633 PMCID: PMC6312889 DOI: 10.4110/in.2018.18.e47] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/03/2018] [Accepted: 12/09/2018] [Indexed: 02/07/2023] Open
Abstract
One-fifth of cancer deaths are associated with obesity. Because the molecular mechanisms by which obesity affects the progression of ovarian cancer (OC) are poorly understood, we investigated if obesity could promote the progression of OC cells using the postmenopausal ob/ob mouse model and peritoneal dissemination of mouse ID8 OC cells. Compared to lean mice, obese mice had earlier OC occurrence, greater metastasis throughout the peritoneal cavity, a trend toward shorter survival, and higher circulating glucose and proinflammatory chemokine CXCL1 levels. Ascites in obese mice had higher levels of macrophages (Mφ) and chemokines including CCL2, CXCL12, CXCL13, G-CSF and M-CSF. Omental tumor tissues in obese mice had more adipocytes than lean mice. Our data suggest that obesity may accelerate the peritoneal dissemination of OC through higher production of pro-inflammatory chemokines and Mφ recruitment.
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Affiliation(s)
- Rosa Mistica C Ignacio
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA
| | - Eun-Sook Lee
- Department of Pharmaceutical Sciences, College of Pharmacy, Florida A&M University, Tallahassee, FL 32301, USA
| | - Andrew J Wilson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.,Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN 37203, USA
| | - Alicia Beeghly-Fadiel
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN 37203, USA.,Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA
| | - Margaret M Whalen
- Department of Chemistry, Tennessee State University, Nashville, TN 37209, USA
| | - Deok-Soo Son
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA
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