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Geneste A, Duong MN, Molina L, Conilh L, Beaumel S, Cleret A, Chettab K, Lachat M, Jordheim LP, Matera EL, Dumontet C. Adipocyte-conditioned medium induces resistance of breast cancer cells to lapatinib. BMC Pharmacol Toxicol 2020; 21:61. [PMID: 32795383 PMCID: PMC7427918 DOI: 10.1186/s40360-020-00436-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 07/27/2020] [Indexed: 12/22/2022] Open
Abstract
Background The existence of a cross-talk between peritumoral adipocytes and cancer cells has been increasingly investigated. Several studies have shown that these adipocytes protect tumor cells from the effect of anticancer agents. Methods To investigate a potential protective effect of adipocyte-conditioned medium on HER2 positive breast cancer cells exposed to tyrosine kinase inhibitors (TKI) such as lapatinib, we analyzed the sensitivity of HER2 positive breast cancer models in vitro and in vivo on SCID mice in the presence or absence of adipocytes or adipocyte-conditioned medium. Results Conditioned medium from differentiated adipocytes reduced the in vitro sensitivity of the HER2+ cell lines BT474 and SKBR3 to TKI. Particularly, conditioned medium abrogated P27 induction in tumor cells by lapatinib but this was observed only when conditioned medium was present during exposure to lapatinib. In addition, resistance was induced with adipocytes derived from murine NIH3T3 or human hMAD cells but not with fibroblasts or preadipocytes. In vivo studies demonstrated that the contact of the tumors with adipose tissue reduced sensitivity to lapatinib. Soluble factors involved in this resistance were found to be thermolabile. Pharmacological modulation of lipolysis in adipocytes during preparation of conditioned media showed that various lipolysis inhibitors abolished the protective effect of conditioned media on tumor cells, suggesting a role for adipocyte lipolysis in the induction of resistance of tumor cells to TKI. Conclusions Overall, our results suggest that contact of tumor cells with proximal adipose tissue induces resistance to anti HER2 small molecule inhibitors through the production of soluble thermolabile factors, and that this effect can be abrogated using lipolysis inhibitors.
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Affiliation(s)
- A Geneste
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - M N Duong
- Department of Oncology, Lausanne University Hospital Center (CHUV) and University of Lausanne, Epalinges, Switzerland
| | - L Molina
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - L Conilh
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France.
| | - S Beaumel
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - A Cleret
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - K Chettab
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - M Lachat
- Hospices Civils de Lyon, Banque de tissus et cellules, 5 place d'Arsonval, 69003, Lyon, France
| | - L P Jordheim
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - E L Matera
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France
| | - C Dumontet
- Centre de Recherche en Cancérologie de Lyon (CRCL), INSERM UMR 1052, CNRS 5286, 8 Avenue Rockefeller, 69008, Lyon, France.,Hospices Civils de Lyon, Services d'Hématologie, 165 Chemin du Grand Revoyet, 69310, Pierre-Bénite, France
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Mestas JL, Chettab K, Roux S, Prieur F, Lafond M, Dumontet C, Lafon C. Development of a confocal ultrasound device using an inertial cavitation control for transfection in-vitro. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/1742-6596/656/1/012003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Thieblemont C, Chettab K, Felman P, Callet-Bauchu E, Traverse-Glehen A, Berger F, Dumontet C, Cerutti C, Baseggio L, Salles G, Paultre C, Coiffier B, McGregor JL. Identification and validation of seven genes, as potential markers, for the differential diagnosis of small B cell lymphomas (small lymphocytic lymphoma, marginal zone B cell lymphoma and mantle cell lymphoma) by cDNA macroarrays analysis. Leukemia 2002; 16:2326-9. [PMID: 12399979 DOI: 10.1038/sj.leu.2402691] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2002] [Accepted: 06/05/2002] [Indexed: 11/09/2022]
MESH Headings
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Physiological Phenomena
- DNA, Neoplasm/analysis
- Diagnosis, Differential
- Gene Expression Profiling
- Humans
- Immunophenotyping
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Lymphoma, B-Cell/diagnosis
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/metabolism
- Lymphoma, Mantle-Cell/diagnosis
- Lymphoma, Mantle-Cell/genetics
- Lymphoma, Mantle-Cell/metabolism
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Oligonucleotide Array Sequence Analysis
- Reverse Transcriptase Polymerase Chain Reaction
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Puente Navazo MD, Chettab K, Duhault J, Koenig-Berard E, McGregor JL. Glucose and insulin modulate the capacity of endothelial cells (HUVEC) to express P-selectin and bind a monocytic cell line (U937). Thromb Haemost 2001; 86:680-5. [PMID: 11522022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Diabetes mellitus is associated with increased prevalence of endothelial cell dysfunction and vascular diseases. Mechanisms leading to alterations in endothelial cell function are poorly understood. We report here that hyperglycaemia results in the expression of endothelial adhesion molecules involved in leukocyte adhesion and extravasation. Incubation of human umbilical cord endothelial cells (HUVEC) with 25 mM glucose induced the expression of P-selectin. This effect was reversed by the addition of 1 nM insulin. Moreover, increased ICAM-1 expression was observed upon HUVEC incubation with 25 mM glucose. Increased adhesion of U937 cells (a monocytic cell line) to endothelial cells cultured with 25 mM glucose was observed. High glucose-induced monocytes cell adhesion was inhibited by an anti-P-selectin monoclonal antibody (LYP20). These results show that high glucose concentration activates endothelial cells leading to monocytes adhesion providing further evidence that hyperglycaemia might be implicated in vessel wall lesions contributing to diabetic vascular disease.
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Affiliation(s)
- M D Puente Navazo
- Centre Pluridisciplinaire d'Oncologie, ISREC, Epalinges, Switzerland.
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Zibara K, Chettab K, McGregor B, Poston R, McGregor J. Increased ICAM-1 and PECAM-1 transcription levels in the heart of Apo-E deficient mice in comparison to wild type (C57BL6). Thromb Haemost 2001; 85:908-14. [PMID: 11372687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Adhesion molecules and chemoattractants are thought to play a critical role in the homing of leukocytes to sites of vascular lesions. Apo-E deficiency in mice creates an atherosclerotic model that mimics vascular lesions in man. Little is known on the effect of Apo-E deficiency on expression of adhesion molecules in the hearts of these animals. In this study, male C57BL6 and Apo-E deficient mice were fed a chow diet over periods of time (0 to 20 weeks). The transcription levels of major adhesion molecules (ICAM-1, PECAM-1), present in the heart, were followed by northern blots. Immunohistochemistry was used to localize these adhesion molecules in the heart. Results show a significant increase in gene transcription levels of ICAM-1 and PECAM-1 in Apo-E animals, but not wild type, at 16 and 20 weeks of chow diet. Such increase in levels of transcription was not observed in younger Apo-E and C57BL6 animals (0, 6 weeks of diet). ICAM-1 and PECAM-1 were strongly expressed in the endocardium and heart microvessels. In contrast, VCAM-1 was poorly stained, with only an occasional expression on the endocardium and arterioles. Enhanced gene expression levels of heart ICAM-1 and PECAM-1 observed in Apo-E deficient mice, but not in control animals, appears to induce the initial stages of an inflammatory reaction. Such observations, not previously reported, may induce heart vascular remodeling.
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Affiliation(s)
- K Zibara
- Thrombosis Research Institute, Post Genomics Atherothrombosis Laboratory, London, UK.
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Mselli-Lakhal L, Favier C, Da Silva Teixeira MF, Chettab K, Legras C, Ronfort C, Verdier G, Mornex JF, Chebloune Y. Defective RNA packaging is responsible for low transduction efficiency of CAEV-based vectors. Arch Virol 1998; 143:681-95. [PMID: 9638141 DOI: 10.1007/s007050050323] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Replication defective retroviral vectors are regularly used for transfer and expression of exogenous genes into dividing cells and in animals. Since lentiviruses are able to infect terminally differentiated and non-dividing cells, their use to produce replication defective vectors may overcome this limitation. We developed two replication-defective lentiviral vectors based on the genome of Caprine Arthritis Encephalitis Virus (CAEV). The first vector (pBNL2) carries the neo and lacZ marker genes. Neo gene is expressed from a genomic RNA and lacZ gene from a subgenomic RNA. The second vector (pCSHL) carries a single fusion gene encoding both phleomycin resistance and beta-galactosidase activity. Replication-competent CAEV was used as helper virus to provide the viral proteins for transcomplementation of these vectors. Our data demonstrated that the genomes of both vectors were packaged into CAEV virions and transduced into goat synovial membrane cells following infection. However, the vector titers remained 3 to 4 logs lower than those of CAEV. Further analysis showed a lack of accumulation of unspliced pBNL2 RNA into the cytoplasm of producer cells resulting in the packaging of pBNL2 sub-genomic RNA only. In contrast, RNA produced from pCSHL vector was correctly transported to the cytoplasm and more efficiently packaged than the pBNL2 sub-genomic RNA as revealed by slot-blot and quantitative RT/PCR analyses. However this higher packaging efficiency of pCSHL genome did not result in a higher transduction efficiency of lacZ gene.
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Affiliation(s)
- L Mselli-Lakhal
- Laboratoire Associé de Recherches sur les Lentivirus chez les Petits Ruminants INRA-ENVL, Marcy l'Etoile, France
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