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Navarro AS, Omalek D, Chaltiel L, Vaysse C, Meresse T, Gangloff D, Jouve E, Selmes G. Oncologic safety of autologous fat grafting in primary breast reconstruction after mastectomy for cancer. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2024; 50:107998. [PMID: 38460246 DOI: 10.1016/j.ejso.2024.107998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION Autologous fat transfer (AFT) is widely used to improve results of breast reconstructive surgery, but its safety is controversial. Our objective was to evaluate the oncologic safety of AFT in a homogeneous population of patients who underwent a total mastectomy with immediate reconstruction for breast cancer. METHODS We performed a retrospective cohort study by identifying all patients who underwent immediate breast reconstruction after mastectomy for breast cancer from 2007 to 2015 in our center. A patient group with AFT performed in the 24 months after mastectomy was compared to a control group. RESULTS Five hundred fifty cases were included, of whom 136 (24.7%) underwent at least one fat graft transfer. Median age was 51 years. Reconstruction was performed in 465 (84.5%) with an implant reconstruction. The median time from mastectomy to AFT was 13.8 months. The median follow up was 55.2 months. A total of 53 events were observed, including 10 (7.4%) in the AFT group and 43 (10.4%) in the control group. There was no difference in 5-year recurrence-free survival (RFS) between the groups. In the subgroup analysis, only lymph node involvement in patients who underwent AFT in the first 24 months after oncologic surgery appeared as a risk factor of recurrence. Among the 104 patients with lymph node involvement, 5-year RFS was 69.2% in patients with lipofilling vs 92.5% in patients without it (p = 0 0.0351). CONCLUSION Performing early lipofilling in primary breast reconstruction after mastectomy for cancer seems to be oncologically safe. Lymph node involvement increases the risk of recurrence in this population.
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Affiliation(s)
- Anne-Sophie Navarro
- Departement of Surgical Oncology, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France.
| | - Donia Omalek
- Departement of Surgical Oncology, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France
| | - Léonor Chaltiel
- Departement of Biostatistics, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France
| | - Charlotte Vaysse
- Departement of Gynecology and Surgical Oncology, Centre Hospitalier Universitaire de Toulouse, IUCT-Oncopôle de Toulouse, France
| | - Thomas Meresse
- Departement of Plastic and Reconstructive Surgery, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France
| | - Dimitri Gangloff
- Departement of Plastic and Reconstructive Surgery, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France
| | - Eva Jouve
- Departement of Surgical Oncology, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France
| | - Gabrielle Selmes
- Departement of Surgical Oncology, Institut Universitaire Du Cancer Toulouse Oncopole, Toulouse, France
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Hong S, Lee DS, Bae GW, Jeon J, Kim HK, Rhee S, Jung KO. In Vivo Stem Cell Imaging Principles and Applications. Int J Stem Cells 2023; 16:363-375. [PMID: 37643761 PMCID: PMC10686800 DOI: 10.15283/ijsc23045] [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: 04/15/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 08/31/2023] Open
Abstract
Stem cells are the foundational cells for every organ and tissue in our body. Cell-based therapeutics using stem cells in regenerative medicine have received attracting attention as a possible treatment for various diseases caused by congenital defects. Stem cells such as induced pluripotent stem cells (iPSCs) as well as embryonic stem cells (ESCs), mesenchymal stem cells (MSCs), and neuroprogenitors stem cells (NSCs) have recently been studied in various ways as a cell-based therapeutic agent. When various stem cells are transplanted into a living body, they can differentiate and perform complex functions. For stem cell transplantation, it is essential to determine the suitability of the stem cell-based treatment by evaluating the origin of stem, the route of administration, in vivo bio-distribution, transplanted cell survival, function, and mobility. Currently, these various stem cells are being imaged in vivo through various molecular imaging methods. Various imaging modalities such as optical imaging, magnetic resonance imaging (MRI), ultrasound (US), positron emission tomography (PET), and single-photon emission computed tomography (SPECT) have been introduced for the application of various stem cell imaging. In this review, we discuss the principles and recent advances of in vivo molecular imaging for application of stem cell research.
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Affiliation(s)
- Seongje Hong
- Department of Anatomy, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Dong-Sung Lee
- Department of Life Sciences, University of Seoul, Seoul, Korea
| | - Geun-Woo Bae
- Department of Anatomy, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Juhyeong Jeon
- Department of Anatomy, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Hak Kyun Kim
- Department of Life Science, Chung-Ang University, Seoul, Korea
| | - Siyeon Rhee
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Kyung Oh Jung
- Department of Anatomy, College of Medicine, Chung-Ang University, Seoul, Korea
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Liu X, Wu C, Zhang Y, Chen S, Ding J, Chen Z, Wu K, Wu X, Zhou T, Zeng M, Wei D, Sun J, Fan H, Zhou L. Hyaluronan-based hydrogel integrating exosomes for traumatic brain injury repair by promoting angiogenesis and neurogenesis. Carbohydr Polym 2023; 306:120578. [PMID: 36746568 DOI: 10.1016/j.carbpol.2023.120578] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/19/2023]
Abstract
With wide clinical demands, therapies for traumatic brain injury (TBI) are far from satisfactory. Combining the merits of stem cells but avoiding the risk of immunologic rejection, bone marrow mesenchymal stem cell-derived exosomes (BME) attract increasing interests and have been proved effective for TBI repair by intravenous or in situ injection. However, difficulties in sustained delivery or aggregation in lesion sites remain obstacle to using BME for TBI. Inspired by that hydrogels are promising to bridge the destroyed neural gap and provide neural niches, we raised a novel strategy of incorporating BME into hyaluronan-collagen hydrogel (DHC-BME) to achieve both mimicking of brain matrix and steady release of exosomes, and thus realizing TBI repair. External characterizations proved that the BME and DHC synergistically promoted neural stem cells (NSCs) differentiation into neurons and oligodendrocytes while inhibited astrocytes differentiation. DHC-BME induced angiogenesis and neurogenesis, from endogenous NSC recruitment to neuronal differentiation and vascularization to synergistically promote axonal regeneration, remyelination, synapse formation and even brain structural remodeling, and lastly, neurological functional recovery of TBI.
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Affiliation(s)
- Xiaoyin Liu
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, Sichuan, China
| | - Chengheng Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China; Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu 610065, Sichuan, China
| | - Yusheng Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Suping Chen
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Jie Ding
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Zhihong Chen
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Kai Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Xiaoyang Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Ting Zhou
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Mingze Zeng
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Dan Wei
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Jing Sun
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China.
| | - Liangxue Zhou
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, Sichuan, China.
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4
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Tu Z, Karnoub AE. Mesenchymal stem/stromal cells in breast cancer development and management. Semin Cancer Biol 2022; 86:81-92. [PMID: 36087857 DOI: 10.1016/j.semcancer.2022.09.002] [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: 06/16/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022]
Abstract
Mesenchymal stem/stromal cells (MSCs) encompass a heterogeneous population of fibroblastic progenitor cells that reside in multiple tissues around the body. They are endowed with capacities to differentiate into multiple connective tissue lineages, including chondrocytes, adipocytes, and osteoblasts, and are thought to function as trophic cells recruited to sites of injury and inflammation where they contribute to tissue regeneration. In keeping with these roles, MSCs also to home to sites of breast tumorigenesis, akin to their migration to wounds, and participate in tumor stroma formation. Mounting evidence over the past two decades has described the critical regulatory roles for tumor-associated MSCs in various aspects of breast tumor pathogenesis, be it tumor initiation, growth, angiogenesis, tumor microenvironment formation, immune evasion, cancer cell migration, invasion, survival, therapeutic resistance, dissemination, and metastatic colonization. In this review, we present a brief summary of the role of MSCs in breast tumor development and progression, highlight some of the molecular frameworks underlying their pro-malignant contributions, and present evidence of their promising utility in breast cancer therapy.
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Affiliation(s)
- Zhenbo Tu
- Department of Pathology and Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Antoine E Karnoub
- Department of Pathology and Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Boston Veterans Affairs Research Institute, West Roxbury, MA 02132, USA.
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5
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Shanja-Grabarz X, Coste A, Entenberg D, Di Cristofano A. Real-time, high-resolution imaging of tumor cells in genetically engineered and orthotopic models of thyroid cancer. Endocr Relat Cancer 2020; 27:529-539. [PMID: 32698130 PMCID: PMC7450603 DOI: 10.1530/erc-20-0295] [Citation(s) in RCA: 6] [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: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 12/27/2022]
Abstract
Genetically engineered and orthotopic xenograft mouse models have been instrumental for increasing our understanding of thyroid cancer progression and for the development of novel therapeutic approaches in a setting that is more physiologically relevant than the classical subcutaneous flank implants. However, the anatomical location of the thyroid gland precludes a non-invasive analysis at the cellular level of the interactions between tumor cells and the surrounding microenvironment and does not allow a real-time evaluation of the response of tumor cells to drug treatments. As a consequence, such studies have generally only relied on endpoint approaches, limiting the amount and depth of the information that could be gathered. Here we describe the development of an innovative approach to imaging specific aspects of thyroid cancer biology, based on the implantation of a permanent, minimally invasive optical window that allows high-resolution, multi-day, intravital imaging of the behavior and cellular dynamics of thyroid tumors in the mouse. We show that this technology allows visualization of fluorescently tagged tumor cells both in immunocompetent, genetically engineered mouse models of anaplastic thyroid cancer (ATC) and in immunocompromised mice carrying orthotopic implanted human or mouse ATC cells. Furthermore, the use of recipient mice in which endothelial cells and macrophages are fluorescently labeled allows the detection of the spatial and functional relationship between tumor cells and their microenvironment. Finally, we show that ATC cells expressing a fluorescent biosensor for caspase 3 activity can be effectively utilized to evaluate, in real-time, the efficacy and kinetics of action of novel small molecule therapeutics. This novel approach to intravital imaging of thyroid cancer represents a platform that will allow, for the first time, the longitudinal, in situ analysis of tumor cell responses to therapy and of their interaction with the microenvironment.
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Affiliation(s)
- Xhesika Shanja-Grabarz
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Anouchka Coste
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - David Entenberg
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
| | - Antonio Di Cristofano
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, USA
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Xu C, Diao YF, Wang J, Liang J, Xu HH, Zhao ML, Zheng B, Luan Z, Wang JJ, Yang XP, Wei MG, Duan JH, Wang KQ, Chen C, Chen F, Ming D, Zhang S, Sun HT, Li XH. Intravenously Infusing the Secretome of Adipose-Derived Mesenchymal Stem Cells Ameliorates Neuroinflammation and Neurological Functioning After Traumatic Brain Injury. Stem Cells Dev 2020; 29:222-234. [DOI: 10.1089/scd.2019.0173] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Chao Xu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Yun-Feng Diao
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Jing Wang
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
- Department of Neurosurgery, Shanxi Dayi Hospital, Taiyuan, China
| | - Jun Liang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Hai-Huan Xu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Ming-Liang Zhao
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Bin Zheng
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Zuo Luan
- Department of Pediatrics, Pediatric Surgery of Navy General Hospital, Beijing, China
| | - Jing-Jing Wang
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Xi-Ping Yang
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Meng-Guang Wei
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Jing-Hao Duan
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Ke-Qiang Wang
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Chong Chen
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Feng Chen
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Sai Zhang
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Hong-Tao Sun
- Institute of Traumatic Brain Injury and Neurology, Characteristic Medical Center of PAPF, Tianjin, China
| | - Xiao-Hong Li
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
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7
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Autogenous Fat Grafting to the Breast and Gluteal Regions: Safety Profile Including Risks and Complications. Plast Reconstr Surg 2019; 143:1625-1632. [PMID: 31136476 DOI: 10.1097/prs.0000000000005617] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Given the widespread utility and therapeutic potential of autogenous fat grafting, plastic surgeons should be familiar with its safety profile and associated adverse events. This article provides a critical review of the literature and delineates risk factors associated with various complications when grafting to the breast and gluteal regions. The majority of adverse events are related to fat necrosis and require minimal diagnostic or therapeutic intervention. Larger graft volumes, as in cosmetic augmentation, are associated with higher incidences of fatty necrosis. The oncologic safety of fat grafting is supported by multiple clinical studies with thousands of breast cancer patients, albeit predominantly retrospective in nature. Although less frequent, serious complications include fat emboli during gluteal augmentation. Identification of associated risk factors and implementation of proper surgical techniques may minimize the occurrence of life-threatening complications.
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8
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Udartseva OO, Zhidkova OV, Ezdakova MI, Ogneva IV, Andreeva ER, Buravkova LB, Gollnick SO. Low-dose photodynamic therapy promotes angiogenic potential and increases immunogenicity of human mesenchymal stromal cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 199:111596. [DOI: 10.1016/j.jphotobiol.2019.111596] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/23/2019] [Accepted: 08/14/2019] [Indexed: 12/19/2022]
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9
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Khalifa J, François S, Rancoule C, Riccobono D, Magné N, Drouet M, Chargari C. Gene therapy and cell therapy for the management of radiation damages to healthy tissues: Rationale and early results. Cancer Radiother 2019; 23:449-465. [PMID: 31400956 DOI: 10.1016/j.canrad.2019.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 06/06/2019] [Indexed: 12/14/2022]
Abstract
Nowadays, ionizing radiations have numerous applications, especially in medicine for diagnosis and therapy. Pharmacological radioprotection aims at increasing detoxification of free radicals. Radiomitigation aims at improving survival and proliferation of damaged cells. Both strategies are essential research area, as non-contained radiation can lead to harmful effects. Some advances allowing the comprehension of normal tissue injury mechanisms, and the discovery of related predictive biomarkers, have led to developing several highly promising radioprotector or radiomitigator drugs. Next to these drugs, a growing interest does exist for biotherapy in this field, including gene therapy and cell therapy through mesenchymal stem cells. In this review article, we provide an overview of the management of radiation damages to healthy tissues via gene or cell therapy in the context of radiotherapy. The early management aims at preventing the occurrence of these damages before exposure or just after exposure. The late management offers promises in the reversion of constituted late damages following irradiation.
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Affiliation(s)
- J Khalifa
- Départment de radiothérapie, institut Claudius-Regaud, institut universitaire du cancer de Toulouse - Oncopole, 1, avenue Irène-Joliot-Curie, 31100 Toulouse, France.
| | - S François
- Institut de recherche biomédicale des armées, BP73, 91223 Brétigny-sur-Orge cedex, France
| | - C Rancoule
- Département de radiothérapie, institut de cancérologie de la Loire Lucien-Neuwirth, 108 bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France; Laboratoire de radiobiologie cellulaire et moléculaire, UMR 5822, institut de physique nucléaire de Lyon (IPNL), 69622 Villeurbanne, France; UMR 5822, CNRS, domaine scientifique de la Doua, 4, rue Enrico-Fermi, 69622 Villeurbanne cedex, France; UMR 5822, université Lyon 1, domaine scientifique de la Doua, 4, rue Enrico-Fermi, 69622 Villeurbanne cedex, France; UMR 5822, université de Lyon, domaine scientifique de la Doua, 4, rue Enrico-Fermi, 69622 Villeurbanne cedex, France
| | - D Riccobono
- Institut de recherche biomédicale des armées, BP73, 91223 Brétigny-sur-Orge cedex, France
| | - N Magné
- Département de radiothérapie, institut de cancérologie de la Loire Lucien-Neuwirth, 108 bis, avenue Albert-Raimond, 42270 Saint-Priest-en-Jarez, France; Laboratoire de radiobiologie cellulaire et moléculaire, UMR 5822, institut de physique nucléaire de Lyon (IPNL), 69622 Villeurbanne, France; UMR 5822, CNRS, domaine scientifique de la Doua, 4, rue Enrico-Fermi, 69622 Villeurbanne cedex, France; UMR 5822, université Lyon 1, domaine scientifique de la Doua, 4, rue Enrico-Fermi, 69622 Villeurbanne cedex, France; UMR 5822, université de Lyon, domaine scientifique de la Doua, 4, rue Enrico-Fermi, 69622 Villeurbanne cedex, France
| | - M Drouet
- Institut de recherche biomédicale des armées, BP73, 91223 Brétigny-sur-Orge cedex, France
| | - C Chargari
- Institut de recherche biomédicale des armées, BP73, 91223 Brétigny-sur-Orge cedex, France; Service de santé des armées, école du Val-de-Grâce, 74, boulevard de Port-Royal, 75005 Paris, France; Département de radiothérapie, Gustave-Roussy Cancer Campus, 114, rue Édouard-Vailant, 94805 Villejuif, France
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Avnet S, Lemma S, Cortini M, Di Pompo G, Perut F, Baldini N. Pre-clinical Models for Studying the Interaction Between Mesenchymal Stromal Cells and Cancer Cells and the Induction of Stemness. Front Oncol 2019; 9:305. [PMID: 31114753 PMCID: PMC6502984 DOI: 10.3389/fonc.2019.00305] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 04/02/2019] [Indexed: 12/12/2022] Open
Abstract
Mesenchymal stromal cells (MSC) have essential functions in building and supporting the tumour microenvironment, providing metastatic niches, and maintaining cancer hallmarks, and it is increasingly evident that the study of the role of MSC in cancer is crucial for paving the way to clinical opportunities for novel anti-cancer therapies. To date, the vast majority of preclinical models that have been used for studying the effect of reactive MSC on cancer growth, metastasis, and response to therapy has been mainly based on in vitro flat biology, including the co-culturing with cell compartmentalization or with cell-to-cell contact, and on in vivo cancer models with different routes of MSC inoculation. More complex in vitro 3D models based on spheroid structures that are formed by intermingled MSC and tumour cells are also capturing the interest in cancer research. These are innovative culture systems tailored on the specific tumour type and that can be combined with a synthetic extracellular matrix, or included in in silico technologies, to more properly mimic the in vivo biological, spatial, biochemical, and biophysical features of tumour tissues. In this review, we summarized the most popular and currently available preclinical models for evaluating the role of MSC in cancer and their specific suitability, for example, in assaying the MSC-driven induction of epithelial-to-mesenchymal transition or of stem-like traits in cancer cells. Finally, we enlightened the need to carefully consider those parameters that might unintentionally strongly affect the secretome in MSC-cancer interplay and introduce confounding variables for the interpretation of results.
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Affiliation(s)
- Sofia Avnet
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Silvia Lemma
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Margherita Cortini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Gemma Di Pompo
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Francesca Perut
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Nicola Baldini
- Orthopaedic Pathophysiology and Regenerative Medicine Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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11
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Liubomirski Y, Lerrer S, Meshel T, Morein D, Rubinstein-Achiasaf L, Sprinzak D, Wiemann S, Körner C, Ehrlich M, Ben-Baruch A. Notch-Mediated Tumor-Stroma-Inflammation Networks Promote Invasive Properties and CXCL8 Expression in Triple-Negative Breast Cancer. Front Immunol 2019; 10:804. [PMID: 31105691 PMCID: PMC6492532 DOI: 10.3389/fimmu.2019.00804] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 03/26/2019] [Indexed: 01/12/2023] Open
Abstract
Stromal cells and pro-inflammatory cytokines play key roles in promoting the aggressiveness of triple-negative breast cancers (TNBC; Basal/Basal-like). In our previous study we demonstrated that stimulation of TNBC and mesenchymal stem cells (MSCs) co-cultures by the pro-inflammatory cytokine tumor necrosis factor α (TNFα) has led to increased metastasis-related properties in vitro and in vivo. In this context, elevated release of the pro-metastatic chemokines CXCL8 (IL-8) and CCL5 (RANTES) was noted in TNFα- and interleukin-1β (IL-1β)-stimulated TNBC:MSC co-cultures; the process was partly (CXCL8) and entirely (CCL5) dependent on physical contacts between the two cell types. Here, we demonstrate that DAPT, inhibitor of γ-secretase that participates in activation of Notch receptors, inhibited the migration and invasion of TNBC cells that were grown in “Contact” co-cultures with MSCs or with patient-derived cancer-associated fibroblasts (CAFs), in the presence of TNFα. DAPT also inhibited the contact-dependent induction of CXCL8, but not of CCL5, in TNFα- and IL-1β-stimulated TNBC:MSC/CAF co-cultures; some level of heterogeneity between the responses of different TNBC cell lines was noted, with MDA-MB-231:MSC/CAF co-cultures being the most sensitive to DAPT. Patient dataset studies comparing basal tumors to luminal-A tumors, and mRNA analyses of Notch receptors in TNBC and luminal-A cells pointed at Notch1 as possible mediator of CXCL8 increase in TNFα-stimulated TNBC:stroma “Contact” co-cultures. Accordingly, down-regulation of Notch1 in TNBC cells by siRNA has substantially reduced the contact-dependent elevation in CXCL8 in TNFα- and also in IL-1β-stimulated TNBC:MSC “Contact” co-cultures. Then, studies in which CXCL8 or p65 (NF-κB pathway) were down-regulated (siRNAs; CRISPR/Cas9) in TNBC cells and/or MSCs, indicated that upon TNFα stimulation of “Contact” co-cultures, p65 was activated and led to CXCL8 production mainly in TNBC cells. Moreover, our findings indicated that when tumor cells interacted with stromal cells in the presence of pro-inflammatory stimuli, TNFα-induced p65 activation has led to elevated Notch1 expression and activation, which then gave rise to elevated production of CXCL8. Overall, tumor:stroma interactions set the stage for Notch1 activation by pro-inflammatory signals, leading to CXCL8 induction and consequently to pro-metastatic activities. These observations may have important clinical implications in designing novel therapy combinations in TNBC.
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Affiliation(s)
- Yulia Liubomirski
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shalom Lerrer
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Tsipi Meshel
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Dina Morein
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Linor Rubinstein-Achiasaf
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - David Sprinzak
- School of Neurobiology, Biochemistry & Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Cindy Körner
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Marcelo Ehrlich
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Adit Ben-Baruch
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
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Liubomirski Y, Lerrer S, Meshel T, Rubinstein-Achiasaf L, Morein D, Wiemann S, Körner C, Ben-Baruch A. Tumor-Stroma-Inflammation Networks Promote Pro-metastatic Chemokines and Aggressiveness Characteristics in Triple-Negative Breast Cancer. Front Immunol 2019; 10:757. [PMID: 31031757 PMCID: PMC6473166 DOI: 10.3389/fimmu.2019.00757] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 03/21/2019] [Indexed: 12/12/2022] Open
Abstract
The tumor microenvironment (TME) plays key roles in promoting disease progression in the aggressive triple-negative subtype of breast cancer (TNBC; Basal/Basal-like). Here, we took an integrative approach and determined the impact of tumor-stroma-inflammation networks on pro-metastatic phenotypes in TNBC. With the TCGA dataset we found that the pro-inflammatory cytokines tumor necrosis factor α (TNFα) and interleukin 1β (IL-1β), as well as their target pro-metastatic chemokines CXCL8 (IL-8), CCL2 (MCP-1), and CCL5 (RANTES) were expressed at significantly higher levels in basal patients than luminal-A patients. Then, we found that TNFα- or IL-1β-stimulated co-cultures of TNBC cells (MDA-MB-231, MDA-MB-468, BT-549) with mesenchymal stem cells (MSCs) expressed significantly higher levels of CXCL8 compared to non-stimulated co-cultures or each cell type alone, with or without cytokine stimulation. CXCL8 was also up-regulated in TNBC co-cultures with breast cancer-associated fibroblasts (CAFs) derived from patients. CCL2 and CCL5 also reached the highest expression levels in TNFα/IL-1β-stimulated TNBC:MSC/CAF co-cultures. The elevations in CXCL8 and CCL2 expression partly depended on direct physical contacts between the tumor cells and the MSCs/CAFs, whereas CCL5 up-regulation was entirely dependent on cell-to-cell contacts. Supernatants of TNFα-stimulated TNBC:MSC "Contact" co-cultures induced robust endothelial cell migration and sprouting. TNBC cells co-cultured with MSCs and TNFα gained migration-related morphology and potent migratory properties; they also became more invasive when co-cultured with MSCs/CAFs in the presence of TNFα. Using siRNA to CXCL8, we found that CXCL8 was significantly involved in mediating the pro-metastatic activities gained by TNFα-stimulated TNBC:MSC "Contact" co-cultures: angiogenesis, migration-related morphology of the tumor cells, as well as cancer cell migration and invasion. Importantly, TNFα stimulation of TNBC:MSC "Contact" co-cultures in vitro has increased the aggressiveness of the tumor cells in vivo, leading to higher incidence of mice with lung metastases than non-stimulated TNBC:MSC co-cultures. Similar tumor-stromal-inflammation networks established in-culture with luminal-A cells demonstrated less effective or differently-active pro-metastatic functions than those of TNBC cells. Overall, our studies identify novel tumor-stroma-inflammation networks that may promote TNBC aggressiveness by increasing the pro-malignancy potential of the TME and of the tumor cells themselves, and reveal key roles for CXCL8 in mediating these metastasis-promoting activities.
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Affiliation(s)
- Yulia Liubomirski
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shalom Lerrer
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Tsipi Meshel
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Linor Rubinstein-Achiasaf
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Dina Morein
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center, Heidelberg, Germany
| | - Cindy Körner
- Division of Molecular Genome Analysis, German Cancer Research Center, Heidelberg, Germany
| | - Adit Ben-Baruch
- School of Molecular Cell Biology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
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Tome Y, Kiyuna T, Uehara F, Bouvet M, Tsuchiya H, Kanaya F, Hoffman RM. Imaging the interaction of α v integrin-GFP in osteosarcoma cells with RFP-expressing host stromal cells and tumor-scaffold collagen in the primary and metastatic tumor microenvironment. J Cell Biochem 2019; 120:283-289. [PMID: 30145815 DOI: 10.1002/jcb.27353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 06/28/2018] [Indexed: 12/27/2022]
Abstract
Human osteosarcoma 143B cells were previously stably transfected with an αv integrin green flourescent protein (GFP) vector. 143B cells expressing αv integrin-GFP were transplanted orthotopically in the tibia of transgenic nude mice ubiquitously expressing red fluorescent protein (RFP). The primary tumors acquired RFP-expressing stroma and were passaged orthotopically in the tibia in noncolored nude mice, which maintained the RFP stroma. The interaction of αv integrin-GFP expression in 143B cells with RFP-expressing host stromal cells was observed by confocal microscopy using the Olympus FV1000. Collagen fibers were imaged simultaneously in reflectance mode. The RFP-expressing stroma included cancer-associated fibroblasts (CAFs) and tumor-associated macrophages (TAMs) which persisted even 3 weeks after passage to nontransgenic nude mice. CAFs expressing RFP were aligned between collagen fibers and cancer cells expressing αv integrin-GFP. Six weeks after transplantation, pulmonary metastases expressing αv integrin-GFP could be identified. TAMs expressing RFP accompanied metastasized osteosarcoma cells expressing αv integrin-GFP in the lung. The current study demonstrates the importance of αv integrin interaction with stromal elements in osteosarcoma.
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Affiliation(s)
- Yasunori Tome
- AntiCancer, Inc, San Diego, California
- Department of Surgery, University of California, San Diego, California
- Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Tasuku Kiyuna
- AntiCancer, Inc, San Diego, California
- Department of Surgery, University of California, San Diego, California
- Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Fuminari Uehara
- AntiCancer, Inc, San Diego, California
- Department of Surgery, University of California, San Diego, California
- Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Michael Bouvet
- Department of Surgery, University of California, San Diego, California
| | - Hiroyuki Tsuchiya
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Fuminori Kanaya
- Department of Orthopedic Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Robert M Hoffman
- AntiCancer, Inc, San Diego, California
- Department of Surgery, University of California, San Diego, California
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Li JH, Fan WS, Wang MM, Wang YH, Ren ZG. Effects of mesenchymal stem cells on solid tumor metastasis in experimental cancer models: a systematic review and meta-analysis. J Transl Med 2018; 16:113. [PMID: 29703232 PMCID: PMC5924448 DOI: 10.1186/s12967-018-1484-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/17/2018] [Indexed: 12/09/2022] Open
Abstract
Background It has been reported mesenchymal stem cells (MSCs) are recruited to and become integral parts of the tumor microenvironment. MSCs might have an active role in solid tumor progression, especially cancer metastasis. However, the contribution of MSCs in the process of cancer metastasis is still controversial. In this review, we performed a meta-analysis on the effects of MSCs administration on cancer metastasis based on published preclinical studies. Methods The PRISMA guidelines were used. A total of 42 publications met the inclusion criteria. Outcome data on the incidence and the number of cancer metastasis as well as study characteristics were extracted. Quality of the studies was assessed according to SYRCLE Risk of Bias tool. Random-effects meta-analysis was used to pool estimates. Results Of the 42 studies included, 32 reported that MSCs administration promoted outcome events (numbers or incidences of cancer metastasis), and 39 reported data suitable for meta-analysis. The median effect size (RR) was 2.04 for the incidence of cancer metastasis (95% CI 1.57–2.65, I2 = 21%), and the median effect size (SMD) was 1.23 for the number of cancer metastasis (95% CI 0.43–2.03, I2 = 89%). Heterogeneity was observed, with the greater impact based on study length and different ways of metastasis measurement and MSCs administration. Conclusion Our results suggested MSCs administration increased the number and the incidence of cancer metastasis in experimental cancer models. High heterogeneity and poor reported risk of bias limit the quality of these findings. Further preclinical studies with better design and adequate reporting are still needed. Electronic supplementary material The online version of this article (10.1186/s12967-018-1484-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jing-Huan Li
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, 200032, China.,Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.,Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
| | - Wen-Shuai Fan
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Mi-Mi Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, 200032, China.,Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Yan-Hong Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, 200032, China.,Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Zheng-Gang Ren
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, 200032, China. .,Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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15
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Determining the Oncologic Safety of Autologous Fat Grafting as a Reconstructive Modality: An Institutional Review of Breast Cancer Recurrence Rates and Surgical Outcomes. Plast Reconstr Surg 2017; 140:382e-392e. [DOI: 10.1097/prs.0000000000003576] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Xu C, Fu F, Li X, Zhang S. Mesenchymal stem cells maintain the microenvironment of central nervous system by regulating the polarization of macrophages/microglia after traumatic brain injury. Int J Neurosci 2017; 127:1124-1135. [PMID: 28464695 DOI: 10.1080/00207454.2017.1325884] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs), which are regarded as promising candidates for cell replacement therapies, are able to regulate immune responses after traumatic brain injury (TBI). Secondary immune response following the mechanical injury is the essential factor leading to the necrosis and apoptosis of neural cells during and after the cerebral edema has subsided and there is lack of efficient agent that can mitigate such neuroinflammation in the clinical application. By means of three molecular pathways (prostaglandin E2 (PGE2), tumor-necrosis-factor-inducible gene 6 protein (TSG-6), and progesterone receptor (PR) and glucocorticoid receptors (GR)), MSCs induce the activation of macrophages/microglia and drive them polarize into the M2 phenotypes, which inhibits the release of pro-inflammatory cytokines and promotes tissue repair and nerve regeneration. The regulation of MSCs and the polarization of macrophages/microglia are dynamically changing based on the inflammatory environment. Under the stimulation of platelet lysate (PL), MSCs also promote the release of pro-inflammatory cytokines. Meanwhile, the statue of macrophages/microglia exerts significant effects on the survival, proliferation, differentiation and activation of MSCs by changing the niche of cells. They form positive feedback loops in maintaining the homeostasis after TBI to relieving the secondary injury and promoting tissue repair. MSC therapies have obtained great achievements in several central nervous system disease clinical trials, which will accelerate the application of MSCs in TBI treatment.
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Affiliation(s)
- Chao Xu
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
| | - Feng Fu
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
| | - Xiaohong Li
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
| | - Sai Zhang
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
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Ramamonjisoa N, Ackerstaff E. Characterization of the Tumor Microenvironment and Tumor-Stroma Interaction by Non-invasive Preclinical Imaging. Front Oncol 2017; 7:3. [PMID: 28197395 PMCID: PMC5281579 DOI: 10.3389/fonc.2017.00003] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 01/05/2017] [Indexed: 12/13/2022] Open
Abstract
Tumors are often characterized by hypoxia, vascular abnormalities, low extracellular pH, increased interstitial fluid pressure, altered choline-phospholipid metabolism, and aerobic glycolysis (Warburg effect). The impact of these tumor characteristics has been investigated extensively in the context of tumor development, progression, and treatment response, resulting in a number of non-invasive imaging biomarkers. More recent evidence suggests that cancer cells undergo metabolic reprograming, beyond aerobic glycolysis, in the course of tumor development and progression. The resulting altered metabolic content in tumors has the ability to affect cell signaling and block cellular differentiation. Additional emerging evidence reveals that the interaction between tumor and stroma cells can alter tumor metabolism (leading to metabolic reprograming) as well as tumor growth and vascular features. This review will summarize previous and current preclinical, non-invasive, multimodal imaging efforts to characterize the tumor microenvironment, including its stromal components and understand tumor-stroma interaction in cancer development, progression, and treatment response.
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Affiliation(s)
- Nirilanto Ramamonjisoa
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ellen Ackerstaff
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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18
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Hoffman RM, Bouvet M. Imaging the microenvironment of pancreatic cancer patient-derived orthotopic xenografts (PDOX) growing in transgenic nude mice expressing GFP, RFP, or CFP. Cancer Lett 2016; 380:349-55. [PMID: 26742463 DOI: 10.1016/j.canlet.2015.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/01/2015] [Accepted: 12/17/2015] [Indexed: 11/24/2022]
Abstract
We have developed a multi-color, imageable, orthotopic mouse model for individual patients with pancreatic cancer. The tumors are labeled by first passaging them orthotopically through transgenic nude mice expressing green fluorescent protein (GFP), red fluorescent protein (RFP), or cyan fluorescent protein (CFP). Passage of the tumors in these colored transgenic mice labels the stromal cells of the tumor. The cancer cells in the PDOX are labeled in situ with GFP by telomerase-dependent adenovirus OBP-401. The models are termed imageable patient-derived orthotopic xenografts (iPDOX). The tumors acquired brightly-fluorescent stromal cells from the transgenic host mice, which were stably associated with the tumors through multiple passages. The colored fluorescent protein-expressing stromal cells included cancer-associated fibroblasts (CAFs) and tumor-associated macrophages (TAMs). This model enables powerful color-coded imaging of the interaction of cancer and stromal cells during tumor progression and treatment.
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Affiliation(s)
- Robert M Hoffman
- AntiCancer, Inc., San Diego, CA, USA; Department of Surgery, University of California, San Diego, CA, USA.
| | - Michael Bouvet
- Department of Surgery, University of California, San Diego, CA, USA
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Tang YM, Bao WM, Yang JH, Ma LK, Yang J, Xu Y, Yang LH, Sha F, Xu ZY, Wu HM, Zhou W, Li Y, Li YH. Umbilical cord-derived mesenchymal stem cells inhibit growth and promote apoptosis of HepG2 cells. Mol Med Rep 2016; 14:2717-24. [PMID: 27485485 DOI: 10.3892/mmr.2016.5537] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 05/23/2016] [Indexed: 11/05/2022] Open
Abstract
Hepatocellular carcinoma is the fifth most common type of cancer worldwide and remains difficult to treat. The aim of this study was to investigate the effects of mesenchymal stem cells (MSCs) derived from the umbilical cord (UC‑MSCs) on HepG2 hepatocellular carcinoma cells. UC‑MSCs were co‑cultured with HepG2 cells and biomarkers of UC‑MSCs were analyzed by flow cytometry. mRNA and protein expression of genes were determined by reverse transcription‑polymerase chain reaction and flow cytometry, respectively. Passage three and seven UC‑MSCs expressed CD29, CD44, CD90 and CD105, whereas CD34 and CD45 were absent on these cells. Co‑culture with UC‑MSCs inhibited proliferation and promoted apoptosis of HepG2 cells in a time‑dependent manner. The initial seeding density of UC‑MSCs also influenced the proliferation and apoptosis of HepG2 cells, with an increased number of UC‑MSCs causing enhanced proliferation inhibition and cell apoptosis. Co‑culture with UC‑MSCs downregulated mRNA and protein expression of α‑fetoprotein (AFP), Bcl‑2 and Survivin in HepG2 cells. Thus, UC‑MSCs may inhibit growth and promote apoptosis of HepG2 cells through downregulation of AFP, Bcl‑2 and Survivin. US-MSCs may be used as a novel therapy for treating hepatocellular carcinoma in the future.
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Affiliation(s)
- Ying-Mei Tang
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Wei-Min Bao
- Department of General Surgery, Yunnan Provincial 1st People's Hospital, Kunming, Yunnan 650032, P.R. China
| | - Jin-Hui Yang
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Lin-Kun Ma
- Department of Ophthamology, The 2nd Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650033, P.R. China
| | - Jing Yang
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Ying Xu
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Li-Hong Yang
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Feng Sha
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Zhi-Yuan Xu
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Hua-Mei Wu
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Wei Zhou
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Yan Li
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
| | - Yu-Hua Li
- Department of Gastroenterology, The 2nd Affiliated Hospital of Kunming Medical University, Yunnan Research Center for Liver Diseases, Kunming, Yunnan 650033, P.R. China
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The Oncologic Safety of Breast Fat Grafting and Contradictions Between Basic Science and Clinical Studies: A Systematic Review of the Recent Literature. Ann Plast Surg 2016; 75:471-9. [PMID: 26360655 DOI: 10.1097/sap.0000000000000604] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Fat grafting is increasingly popular and is becoming a common practice in plastic surgery for postmastectomy breast reconstruction and aesthetic breast augmentation; however, concerns over the oncologic safety remains a controversial and hot topic among scientists and surgeons. Basic science and laboratory research repeatedly show a potentially dangerous effect of adipose-derived stem cells on breast cancer cells; however, clinical research, although limited, continually fails to show an increase in breast cancer recurrence after breast fat grafting, with the exception of 1 small study on a subset patient population with intraepithelial neoplasm of the breast. The aim of this review is to summarize the recent conflicting basic science and clinical data to better understand the safety of breast fat grafting from an oncological perspective.
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Nicolay NH, Lopez Perez R, Debus J, Huber PE. Mesenchymal stem cells – A new hope for radiotherapy-induced tissue damage? Cancer Lett 2015; 366:133-40. [DOI: 10.1016/j.canlet.2015.06.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 06/17/2015] [Accepted: 06/18/2015] [Indexed: 12/11/2022]
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22
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Lost signature: progress and failures in in vivo tracking of implanted stem cells. Appl Microbiol Biotechnol 2015; 99:9907-22. [DOI: 10.1007/s00253-015-6965-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/25/2015] [Accepted: 08/27/2015] [Indexed: 01/01/2023]
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23
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Li T, Zhang C, Ding Y, Zhai W, Liu K, Bu F, Tu T, Sun L, Zhu W, Zhou F, Qi W, Hu J, Chen H, Sun X. Umbilical cord-derived mesenchymal stem cells promote proliferation and migration in MCF-7 and MDA-MB-231 breast cancer cells through activation of the ERK pathway. Oncol Rep 2015; 34:1469-77. [PMID: 26151310 DOI: 10.3892/or.2015.4109] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/03/2015] [Indexed: 11/05/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are known to migrate to tumor tissues and to play an important role in cancer progression. However, the effects of MSCs on tumor progression remain controversial. The purpose of the present study was to detect the effects of human umbilical cord-derived MSCs (hUC‑MSCs) on the human breast cancer cell lines MDA-MB‑231 and MCF-7 in vitro and the underlying mechanisms. MSCs were isolated and identified from umbilical cord tissues. MDA-MB‑231 and MCF-7 cells were treated with conditioned medium (CM) from 10 and 20% umbilical cord MSCs (UC-MSCs), and the resulting changes in proliferation and migration were investigated. The 3-(4,5-dimethyl-2-thiazolyl)‑2,5-diphenyl‑2-H-tetrazolium bromide (MTT) and plate clone formation assays were used to assess the effect on proliferation, and the effects of CM on MDA-MB-231 and MCF-7 migration were assessed through scratch wound and Transwell migration assays. The expression of cell proliferation- and metastasis-related genes and proteins and activation of the ERK signaling pathway were analyzed by RT-PCR and western blot assays. UC-MSCs are characteristically similar to bone marrow MSCs (BM-MSCs) and exhibit multipotential differentiation capability (i.e., osteoblasts and adipocytes). The MTT, plate clone formation, scratch wound and Transwell migration assay results revealed that 10 and 20% CM promoted the proliferation and migration to higher levels than those observed in the control group. Our findings showed that UC-MSC-CM inhibited E-cadherin expression, increased the expression of N-cadherin and proliferating cell nuclear antigen (PCNA) and enhanced the expression of ZEB1, a transcription factor involved in epithelial‑to‑mesenchymal transition (EMT), through activation of the ERK pathway. U0126, an inhibitor of ERK, reversed the effects of UC-MSC-CM on breast cancer cell proliferation and migration. We conclude that UC-MSCs promote the proliferation and migration of breast cancer cell lines via activation of the ERK pathway.
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Affiliation(s)
- Tao Li
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Chunfu Zhang
- The Second People's Hospital of Kunshan, Kunshan, Jiangsu 215300, P.R. China
| | - Yanling Ding
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wei Zhai
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Kui Liu
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Fan Bu
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Tao Tu
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Lingxian Sun
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wei Zhu
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Fangfang Zhou
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wenkai Qi
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Jiabo Hu
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Huabiao Chen
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
| | - Xiaochun Sun
- School of Medicine, Jiangsu University, Jiangsu Key Laboratory of Clinical Laboratory Medicine, Zhenjiang, Jiangsu 212013, P.R. China
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Nasser MW, Elbaz M, Ahirwar DK, Ganju RK. Conditioning solid tumor microenvironment through inflammatory chemokines and S100 family proteins. Cancer Lett 2015; 365:11-22. [PMID: 25963887 DOI: 10.1016/j.canlet.2015.05.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 04/23/2015] [Accepted: 05/04/2015] [Indexed: 12/13/2022]
Abstract
Recently, there has been growing attention to the role of the tumor microenvironment (TME) in cancer growth, metastasis and emergence of chemotherapy resistance. Stromal and tumor cells make up the TME and interact with each other through a complex cross-talk manner. This interaction is facilitated by a variety of growth factors, cytokines, chemokines and S100 proteins. In this review, we focus on chemokines and their cognate receptors in regulating the tumorigenic process. Chemokines are cytokines that have chemotactic potential. Chemokine receptors are expressed on tumor cells and stromal cells. Chemokines and their cognate receptors modulate tumor growth and metastasis in a paracrine and autocrine manner. They play a major role in the modulation of stromal cell recruitment, angiogenic potential, cancer cell proliferation, survival, adhesion, invasion and metastasis to distant sites. In addition, a new class of calcium binding family S100 proteins has been getting attention as they play significant roles in tumor progression and metastasis by modulating TME. Here, we highlight recent developments regarding the inflammatory chemokine/S100 protein systems in the TME. We also focus on how chemokines/S100 proteins, through their role in the TME, modulate cancer cell ability to grow, proliferate, invade and metastasize to different organs. This review highlights the possibility of using the chemokine/chemokine receptor axis as a promising strategy in cancer therapy, the current difficulties in achieving this goal, and how it could be overcome for successful future therapeutic intervention.
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Affiliation(s)
- Mohd W Nasser
- Department of Pathology, Comprehensive Cancer Center, The Ohio State Medical Center, Columbus, OH, USA.
| | - Mohamad Elbaz
- Department of Pathology, Comprehensive Cancer Center, The Ohio State Medical Center, Columbus, OH, USA
| | - Dinesh K Ahirwar
- Department of Pathology, Comprehensive Cancer Center, The Ohio State Medical Center, Columbus, OH, USA
| | - Ramesh K Ganju
- Department of Pathology, Comprehensive Cancer Center, The Ohio State Medical Center, Columbus, OH, USA
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The role of adipose-derived stem cells in breast cancer progression and metastasis. Stem Cells Int 2015; 2015:120949. [PMID: 26000019 PMCID: PMC4427098 DOI: 10.1155/2015/120949] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/26/2014] [Indexed: 12/15/2022] Open
Abstract
Conventional breast cancer extirpation involves resection of parts of or the whole gland, resulting in asymmetry and disfiguration. Given the unsatisfactory aesthetic outcomes, patients often desire postmastectomy reconstructive procedures. Autologous fat grafting has been proposed for reconstructive purposes for decades to restore form and anatomy after mastectomy. Fat has the inherent advantage of being autologous tissue and the most natural-appearing filler, but given its inconsistent engraftment and retention rates, it lacks reliability. Implementation of autologous fat grafts with cellular adjuncts, such as multipotent adipose-derived stem cells (ADSCs), has shown promising results. However, it is pertinent and critical to question whether these cells could promote any residual tumor cells to proliferate, differentiate, or metastasize or even induce de novo carcinogenesis. Thus far, preclinical and clinical study findings are discordant. A trend towards potential promotion of both breast cancer growth and invasion by ADSCs found in basic science studies was indeed not confirmed in clinical trials. Whether experimental findings eventually correlate with or will be predictive of clinical outcomes remains unclear. Herein, we aimed to concisely review current experimental findings on the interaction of mesenchymal stem cells and breast cancer, mainly focusing on ADSCs as a promising tool for regenerative medicine, and discuss the implications in clinical translation.
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26
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Abstract
Multicolored proteins have allowed the color-coding of cancer cells growing in vivo and enabled the distinction of host from tumor with single-cell resolution. Non-invasive imaging with fluorescent proteins enabled the dynamics of metastatic cancer to be followed in real time in individual animals. Non-invasive imaging of cancer cells expressing fluorescent proteins has allowed the real-time determination of efficacy of candidate antitumor and antimetastatic agents in mouse models. The use of fluorescent proteins to differentially label cancer cells in the nucleus and cytoplasm can visualize the nuclear-cytoplasmic dynamics of cancer cells in vivo including: mitosis, apoptosis, cell-cycle position, and differential behavior of nucleus and cytoplasm that occurs during cancer-cell deformation and extravasation. Recent applications of the technology described here include linking fluorescent proteins with cell-cycle-specific proteins such that the cells change color from red to green as they transit from G1 to S phases. With the macro- and micro-imaging technologies described here, essentially any in vivo process can be imaged, giving rise to the new field of in vivo cell biology using fluorescent proteins.
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Affiliation(s)
- Robert M. Hoffman
- AntiCancer, Inc., Dept. of Surgery, University of California San Diego
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Meleshina AV, Cherkasova EI, Shirmanova MV, Klementieva NV, Kiseleva EV, Snopova LВ, Prodanets NN, Zagaynova EV. Influence of mesenchymal stem cells on metastasis development in mice in vivo. Stem Cell Res Ther 2015; 6:15. [PMID: 25888992 PMCID: PMC4415299 DOI: 10.1186/s13287-015-0003-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 02/03/2015] [Accepted: 02/03/2015] [Indexed: 02/10/2023] Open
Abstract
INTRODUCTION In recent years, mesenchymal stem cells (MSCs) have been demonstrated to play an important role in carcinogenesis. However, the effect of MSCs on tumor and metastasis development and the mechanisms underlying the interaction of cancer and stem cells are not completely understood. This study investigated the effect of MSCs on breast cancer metastasis formation by using the methods of in vivo fluorescence and luminescence imaging. METHODS MSCs were isolated from bone marrow of normal donors, characterized, and genetically labeled with luciferase (luc2). The effects of MSCs on MDA-MB-231 cancer cell proliferation were evaluated in conditioned medium from MSCs. To generate lung metastases, MDA-MB-231 cells stably expressing red fluorescent protein Turbo FP650 were injected intravenously into nude mice. On day 10 after the cancer cell injection, mice were injected via the tail vein with MSCs-luc2 cells (the MET+MSCs group). Animals that received the injection of MDA-MB-231-Turbo FP650 alone (the MET group) and no injections (the intact control group) served as controls. Fluorescence and bioluminescence imaging was performed for monitoring of the metastasis formation and MSC distribution in the recipient's body. RESULTS We found that the proliferative activity of the cancer cells in the presence of MSC conditioned medium was lower than that of the cells grown in conventional culture medium. The metastasis formation in the MET+MSCs group was delayed in time as compared with the MET group. Macroscopic and histological examination of isolated lungs 8 weeks after cancer cell injection showed that the total number of metastases in animals of the MET+MSCs group was significantly lower. Using bioluminescence imaging in vivo, we found that MSCs-luc2 cells survived in the host animal for at least 7 weeks and re-migrated to the lung 6 to 7 weeks after injection. Immunohistochemical analysis revealed the presence of MSCs-luc2 in metastases and lung tissue. CONCLUSIONS Long-term in vivo bioluminescence imaging of intravenously injected MSCs-luc2 cells showed distribution of MSCs to the lungs and abdominal organs within the first 2 to 3 weeks and re-migration to the lungs in weeks 6 to 7. It was found that MSCs reduced the proliferative activity of cancer cells in vitro and lung metastasis formation in mice.
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Affiliation(s)
- Aleksandra V Meleshina
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia. .,Nizhny Novgorod State University, Gagarin Avenue, 23, Nizhny, Novgorod, 603950, Russia.
| | - Elena I Cherkasova
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia. .,Nizhny Novgorod State University, Gagarin Avenue, 23, Nizhny, Novgorod, 603950, Russia.
| | - Marina V Shirmanova
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia.
| | - Natalia V Klementieva
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia.
| | - Ekaterina V Kiseleva
- Koltzov Institute of Developmental Biology of Russian Academy of Science, Vavilova st., 26, Moscow, 119334, Russia.
| | - Ludmila В Snopova
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia.
| | - Natalia N Prodanets
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia.
| | - Elena V Zagaynova
- Nizhny Novgorod State Medical Academy, Minin and Pozharsky Square, 10/1, Nizhny, Novgorod, 603005, Russia. .,Nizhny Novgorod State University, Gagarin Avenue, 23, Nizhny, Novgorod, 603950, Russia.
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Zhang Y, Miwa S, Zhang N, Hoffman RM, Zhao M. Tumor-targeting Salmonella typhimurium A1-R arrests growth of breast-cancer brain metastasis. Oncotarget 2015; 6:2615-22. [PMID: 25575815 PMCID: PMC4413605 DOI: 10.18632/oncotarget.2811] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 11/14/2014] [Indexed: 12/20/2022] Open
Abstract
Brain metastasis is a morbid, treatment-resistant, end-stage frequent occurrence in breast cancer patients. The aim of this study was to evaluate the efficacy of tumor-targeting Salmonella typhimurium A1-R on breast cancer brain metastases. High brain-metastatic variants of murine 4T1 breast cancer cells expressing red fluorescent protein (RFP) were injected orthotopically in the mammary fat pad in non-transgenic nude mice or in the left ventricle of non-transgenic nude mice and transgenic nude mice expressing nestin-driven green fluorescent protein (ND-GFP). ND-GFP mice express GFP in nascent blood vessels. In the orthotopically-injected mice, the primary tumor was surgically-resected in order to allow brain metastasis to develop. At various time points, the tumors and vasculature in the brain were imaged by confocal and stereo fluorescence microscopy. Some of the breast cancer cells that reached the brain extravasated and grew perivascularly and some of the cells proliferated within the vasculature. S. typhimurium A1-R significantly inhibited brain metastasis in both metastatic models and increased survival of the orthotopically-transplanted, primary-tumor-resected mice (p<0.05). The results of the present study suggest the clinical potential of bacterial therapy of breast cancer brain metastasis.
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Affiliation(s)
| | - Shinji Miwa
- AntiCancer, Inc., San Diego, CA, USA
- Department of Surgery, University of California San Diego, San Diego, CA, USA
| | - Nan Zhang
- AntiCancer, Inc., San Diego, CA, USA
| | - Robert M. Hoffman
- AntiCancer, Inc., San Diego, CA, USA
- Department of Surgery, University of California San Diego, San Diego, CA, USA
| | - Ming Zhao
- AntiCancer, Inc., San Diego, CA, USA
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Abstract
In addition to their stem/progenitor properties, mesenchymal stromal cells (MSCs) possess broad immunoregulatory properties that are being investigated for potential clinical application in treating immune-based disorders. An informed view of the scope of this clinical potential will require a clear understanding of the dynamic interplay between MSCs and the innate and adaptive immune systems. In this Review, we outline current insights into the ways in which MSCs sense and control inflammation, highlighting the central role of macrophage polarization. We also draw attention to functional differences seen between vivo and in vitro contexts and between species. Finally, we discuss progress toward clinical application of MSCs, focusing on GvHD as a case study.
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Affiliation(s)
- Maria Ester Bernardo
- Department of Pediatric Hematology and Oncology, IRCCS Bambino Gesù Children Hospital, 00165 Rome, Italy
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