DMBT1 as an archetypal link between infection, inflammation, and cancer
Inmunología (1987)
; Inmunología (1987);26(4): 193-209, oct.-dic. 2007. ilus, tab
Article
en En
| IBECS
| ID: ibc-62534
Biblioteca responsable:
ES15.1
Ubicación: ES15.1 - BNCS
Los estudios epidemiológicos y moleculares indican vínculosentre infección, inflamación y cáncer, que parece que convergena nivel molecular en mecanismos asociados con la inmunidadinnata. Aquí, presentamos un resumen del conocimientosobre la proteína secretada "scavenger receptor cysteine-rich(SRCR)" Deleted in Malignant Brain Tumors 1 (DMBT1), tambiénconocida como glicoproteína-340 o aglutinina de la saliva. DMBT1se expresa diferencialmente en varios tipos de cáncer, en muchoscasos disminuyendo su regulación. Como proteína secretada allumen, tiene funciones en la defensa innata contra los patógenos,y la regulación de la inflamación. En contraste, podría inducir ladiferenciación epitelial y de células madre, como proteína de lamatriz extracelular. Su amplia respuesta a estímulos patofisiológicossugiere un papel general en la protección celular y tisular,probablemente uniendo la defensa contra patógenos y la regulaciónde la respuesta inflamatoria a procesos regenerativos. Existensimilitudes muy interesantes con las funciones de otras proteínasSRCR presentes en metazoos primitivos, como las esponjasy los erizos de mar. Esto sugiere que sus diferentes funcionespodrían basarse en un principio antiguo y simple, que seríala mediación diferencial de adhesión y anti-adhesión. De manerasimilar a las vías de señalización de NF-κB, que también estánreguladas indirectamente por DMBT1, el conocimiento actualindica que DMBT1 no sólo podría tener funciones de prevenciónde enfermedad, sino probablemente también funciones generadorasde enfermedad. En resumen, DMBT1 podría representarun paradigma del vínculo arquetípico entre infección, inflamación,y cáncer. La comprensión de su complejo modo de acciónpromete nuevos puntos de vista sobre el origen y las bases molecularesde las grandes enfermedades humanas
Epidemiological and molecular studies have pointed to linksbetween infection, inflammation and cancer, which appear to convergeat the molecular level in mechanisms associated with innateimmunity. Here, the present knowledge about the secreted scavengerreceptor cysteine-rich (SRCR) protein Deleted in MalignantBrain Tumors 1 (DMBT1), also known as glycoprotein-340or salivary agglutinin, is summarized. DMBT1 is differentially expressed in various cancer types with most of these displayinga downregulation. As a lumenally secreted protein, it exerts functionsin innate pathogen defense and the regulation of inflammation.By contrast, it may trigger epithelial and stem cell differentiationas an extracellular matrix protein. Its broad responsivenessto pathophysiological stimuli points to a general role incell and tissue protection, which possibly is best circumscribedby linking pathogen defense and regulation of the inflammatoryresponse to regenerative processes. Compelling similaritiesto the functions of SRCR proteins in primitive metazoa such assponges and sea urchins exist, which support that its various functionsmay rely on an ancient and simple principle, i.e. the differentialmediation of adhesion and anti-adhesion. Similar to NF-κB signaling pathways, which are also indirectly regulated byDMBT1, the present state of the art indicates that DMBT1 not onlycould exert disease-preventing, but probably also disease-promotingfunctions. Taken together, DMBT1 may represent a paradigmfor an archetypal link between infection, inflammation, andcancer. Understanding its complex mode of action promises novelinsights into the origin and the molecular basis of major humandiseases
Epidemiological and molecular studies have pointed to linksbetween infection, inflammation and cancer, which appear to convergeat the molecular level in mechanisms associated with innateimmunity. Here, the present knowledge about the secreted scavengerreceptor cysteine-rich (SRCR) protein Deleted in MalignantBrain Tumors 1 (DMBT1), also known as glycoprotein-340or salivary agglutinin, is summarized. DMBT1 is differentially expressed in various cancer types with most of these displayinga downregulation. As a lumenally secreted protein, it exerts functionsin innate pathogen defense and the regulation of inflammation.By contrast, it may trigger epithelial and stem cell differentiationas an extracellular matrix protein. Its broad responsivenessto pathophysiological stimuli points to a general role incell and tissue protection, which possibly is best circumscribedby linking pathogen defense and regulation of the inflammatoryresponse to regenerative processes. Compelling similaritiesto the functions of SRCR proteins in primitive metazoa such assponges and sea urchins exist, which support that its various functionsmay rely on an ancient and simple principle, i.e. the differentialmediation of adhesion and anti-adhesion. Similar to NF-κB signaling pathways, which are also indirectly regulated byDMBT1, the present state of the art indicates that DMBT1 not onlycould exert disease-preventing, but probably also disease-promotingfunctions. Taken together, DMBT1 may represent a paradigmfor an archetypal link between infection, inflammation, andcancer. Understanding its complex mode of action promises novelinsights into the origin and the molecular basis of major humandiseases
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Colección:
06-national
/
ES
Base de datos:
IBECS
Asunto principal:
Inmunidad Innata
/
Infecciones
/
Inflamación
/
Neoplasias
Límite:
Humans
Idioma:
En
Revista:
Inmunología (1987)
Año:
2007
Tipo del documento:
Article