Paradoxical role of the proto-oncogene Axl and Mer receptor tyrosine kinases in colon cancer
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Paradoxical role of the proto-oncogene Axl and Mer receptor tyrosine kinases in colon cancer. / Bosurgi, Lidia; Bernink, Jochem H; Delgado Cuevas, Victor; Gagliani, Nicola; Joannas, Leonel; Schmid, Edward T; Booth, Carmen J; Ghosh, Sourav; Rothlin, Carla V.
in: P NATL ACAD SCI USA, Jahrgang 110, Nr. 32, 06.08.2013, S. 13091-6.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Paradoxical role of the proto-oncogene Axl and Mer receptor tyrosine kinases in colon cancer
AU - Bosurgi, Lidia
AU - Bernink, Jochem H
AU - Delgado Cuevas, Victor
AU - Gagliani, Nicola
AU - Joannas, Leonel
AU - Schmid, Edward T
AU - Booth, Carmen J
AU - Ghosh, Sourav
AU - Rothlin, Carla V
PY - 2013/8/6
Y1 - 2013/8/6
N2 - The receptor tyrosine kinases Axl and Mer, belonging to the Tyro3, Axl and Mer (TAM) receptor family, are expressed in a number of tumor cells and have well-characterized oncogenic roles. The therapeutic targeting of these kinases is considered an anticancer strategy, and various inhibitors are currently under development. At the same time, Axl and Mer are expressed in dendritic cells and macrophages and have an essential function in limiting inflammation. Inflammation is an enabling characteristic of multiple cancer hallmarks. These contrasting oncogenic and anti-inflammatory functions of Axl and Mer posit a potential paradox in terms of anticancer therapy. Here we demonstrate that azoxymethane (AOM) and dextran sulfate sodium (DSS)-induced inflammation-associated cancer is exacerbated in mice lacking Axl and Mer. Ablation of Axl and Mer signaling is associated with increased production of proinflammatory cytokines and failure to clear apoptotic neutrophils in the intestinal lamina propria, thereby favoring a tumor-promoting environment. Interestingly, loss of these genes in the hematopoietic compartment is not associated with increased colitis. Axl and Mer are expressed in radioresistant intestinal macrophages, and the loss of these genes is associated with an increased inflammatory signature in this compartment. Our results raise the possibility of potential adverse effects of systemic anticancer therapies with Axl and Mer inhibitors, and underscore the importance of understanding their tissue and cell type-specific functions in cancer.
AB - The receptor tyrosine kinases Axl and Mer, belonging to the Tyro3, Axl and Mer (TAM) receptor family, are expressed in a number of tumor cells and have well-characterized oncogenic roles. The therapeutic targeting of these kinases is considered an anticancer strategy, and various inhibitors are currently under development. At the same time, Axl and Mer are expressed in dendritic cells and macrophages and have an essential function in limiting inflammation. Inflammation is an enabling characteristic of multiple cancer hallmarks. These contrasting oncogenic and anti-inflammatory functions of Axl and Mer posit a potential paradox in terms of anticancer therapy. Here we demonstrate that azoxymethane (AOM) and dextran sulfate sodium (DSS)-induced inflammation-associated cancer is exacerbated in mice lacking Axl and Mer. Ablation of Axl and Mer signaling is associated with increased production of proinflammatory cytokines and failure to clear apoptotic neutrophils in the intestinal lamina propria, thereby favoring a tumor-promoting environment. Interestingly, loss of these genes in the hematopoietic compartment is not associated with increased colitis. Axl and Mer are expressed in radioresistant intestinal macrophages, and the loss of these genes is associated with an increased inflammatory signature in this compartment. Our results raise the possibility of potential adverse effects of systemic anticancer therapies with Axl and Mer inhibitors, and underscore the importance of understanding their tissue and cell type-specific functions in cancer.
KW - Animals
KW - Apoptosis
KW - Azoxymethane
KW - Colitis
KW - Colon
KW - Colonic Neoplasms
KW - Cytokines
KW - Dextran Sulfate
KW - Female
KW - Flow Cytometry
KW - Gene Expression
KW - Macrophages
KW - Male
KW - Mice
KW - Mice, Inbred Strains
KW - Mice, Knockout
KW - Mucous Membrane
KW - Neutrophils
KW - Phagocytosis
KW - Proto-Oncogene Proteins
KW - Receptor Protein-Tyrosine Kinases
KW - Reverse Transcriptase Polymerase Chain Reaction
KW - Signal Transduction
KW - c-Mer Tyrosine Kinase
KW - Journal Article
KW - Research Support, N.I.H., Extramural
KW - Research Support, Non-U.S. Gov't
KW - Research Support, U.S. Gov't, Non-P.H.S.
U2 - 10.1073/pnas.1302507110
DO - 10.1073/pnas.1302507110
M3 - SCORING: Journal article
C2 - 23878224
VL - 110
SP - 13091
EP - 13096
JO - P NATL ACAD SCI USA
JF - P NATL ACAD SCI USA
SN - 0027-8424
IS - 32
ER -