The combination of Cl-IB-MECA with paclitaxel: a new anti-metastatic therapeutic strategy for melanoma

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Ana S Soares (Author) Other; Vera M Costa (Author) Other; Carmen Diniz (Author) FFUP; Paula Fresco (Author) FFUP

Journal

Title: Cancer Chemotherapy and Pharmacology

Vol. 74

Pages: 847-860

ISSN: 0344-5704

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 8 Citations

Scientific classification

FOS: Medical and Health sciences > Clinical medicine

Other information

Authenticus ID: P-009-VY7

DOI: 10.1007/s00280-014-2557-y

Abstract (EN): Metastatic melanoma is considered one of the most aggressive malignant tumours, representing the deadliest form of skin cancer. Melanoma progression is associated with the abrogation of normal controls that limit cell proliferation, migration, and invasion, eventually leading to metastasis. Based on the variety of cellular mechanisms involved in metastatic progression, we aimed to evaluate the effect of inosine (50 mu M) and of the combination of Cl-IB-MECA (10 mu M) with paclitaxel (10 ng/mL) on several stages of melanoma progression. Proliferation, migration, adhesion, invasion, and colony formation assays were performed on human C32 and A375 metastatic melanoma cells. Levels of ERK1/2 were also determined using an ELISA kit. Moreover, mouse aortic rings were treated with vascular endothelial growth factor in order to assess the microvessel sprouting (an indicator of angiogenesis) in the presence of the referred compounds. We demonstrate that inosine induced, through A(3) adenosine receptor activation, proliferation, migration, adhesion, and invasion on C32 and A375 melanoma cells, although with dissimilar importance on the two melanoma cell lines. Inosine also increased colony formation on A375 cells. Levels of ERK1/2 were increased after inosine exposure and that increase was dependent on A(3) adenosine receptor activation in both cell lines. Moreover, microvessel sprouting stimulated by inosine was decreased by the combination of Cl-IB-MECA with paclitaxel. Cl-IB-MECA combined with paclitaxel was able to impair almost all of the referred metastatic related mechanisms induced by inosine, making this approach a valuable tool for combinatory therapy against metastatic melanoma.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14