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The CD73 is induced by TGF-ß1 triggered by nutrient deprivation and highly expressed in dedifferentiated human melanoma.
Giraulo, Caterina; Turiello, Roberta; Orlando, Lavinia; Leonardelli, Sonia; Landsberg, Jennifer; Belvedere, Raffaella; Rolshoven, Georg; Müller, Christa E; Hölzel, Michael; Morello, Silvana.
Afiliación
  • Giraulo C; Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.
  • Turiello R; Institute of Experimental Oncology, University Hospital Bonn (UKB), University of Bonn, Bonn, Germany.
  • Orlando L; Department of Pharmacy, University of Salerno, Fisciano, SA, Italy; PhD Program in Drug Discovery and Development, University of Salerno, Fisciano, Italy.
  • Leonardelli S; Institute of Experimental Oncology, University Hospital Bonn (UKB), University of Bonn, Bonn, Germany.
  • Landsberg J; Laboratory of Experimental Dermatology, Department of Dermatology and Allergy, University of Bonn, Bonn, Germany.
  • Belvedere R; Department of Pharmacy, University of Salerno, Fisciano, SA, Italy.
  • Rolshoven G; PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, Bonn, Germany.
  • Müller CE; PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, Bonn, Germany.
  • Hölzel M; Institute of Experimental Oncology, University Hospital Bonn (UKB), University of Bonn, Bonn, Germany.
  • Morello S; Department of Pharmacy, University of Salerno, Fisciano, SA, Italy. Electronic address: smorello@unisa.it.
Biomed Pharmacother ; 165: 115225, 2023 Sep.
Article en En | MEDLINE | ID: mdl-37517292
CD73 is the key enzyme in the generation of extracellular adenosine, a mediator involved in tumor progression, tumor immune escape and resistance to anti-cancer therapeutics. Microenvironmental conditions influence the expression of CD73 in tumor cells. However how CD73 expression and activity is regulated in a stress condition of lower nutrient availability are largely unknown. Our results indicate that serum starvation leads to a marked up-regulation of CD73 expression on A375 melanoma cells in a time-dependent manner. The cell-surface expression of CD73 is associated with an increased release of TGF-ß1 by starved cells. Blockade of TGF-ß1 receptors or TGFß/SMAD3 signaling pathway significantly reduce the expression of CD73 induced by starvation. Treatment of cells with rTGF-ß1 up-regulates the expression of CD73 in a concentration-dependent manner, confirming the role of this pathway in regulating CD73 in melanoma A375 cells. The increased expression of CD73 is associated with enhanced AMPase activity, which is selectively reduced by inhibitors of CD73 activity, APCP and PSB-12489. Pharmacological blockade of CD73 significantly inhibits invasion of melanoma cells in a transwell system. Furthermore, using multiplex immunofluorescence imaging we found that, within human melanoma metastases, tumor cells at the dedifferentiated stage show the highest CD73 protein expression. In summary, our data provide new insights into the mechanism regulating the expression/activity of CD73 in melanoma cells in a condition of lower availability of nutrients, which is a common feature of the tumor microenvironment. Within human metastatic melanoma tissues elevated protein expression of CD73 is associated with an invasive-like phenotype.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: 5'-Nucleotidasa / Factor de Crecimiento Transformador beta1 / Melanoma Límite: Humans Idioma: En Revista: Biomed Pharmacother Año: 2023 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Francia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: 5'-Nucleotidasa / Factor de Crecimiento Transformador beta1 / Melanoma Límite: Humans Idioma: En Revista: Biomed Pharmacother Año: 2023 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Francia