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Report for Clinical Trial NCT01281722

Developed by Shray Alag, 2020.
SNP Clinical Trial Gene

Role of SLURP-1 in Melanoma and Melanoma Stem Cells

Melanoma is the most aggressive skin cancer, with a propensity to metastasize, and is resistant to most of the current therapeutic regimens. Incidence rate of melanoma in patients with MDM (Mal De Maleda, with SLURP-1 mutation) is much higher than normal counterpart. SLURP-1 (lymphocyte antigen 6/urokinase-type plasminogen activator receptor related protein-1) is an allosteric agonist to the nicotinic acetylcholine receptor (nAchR) and it regulates epidermal homeostasis and T-cell function. The preliminary results of comparing human peripheral blood mononuclear cells (PBMCs) from 4 affected and 15 unaffected members from the family with MDM revealed that T-cell activation was impaired in PBMCs with the heterozygous and homozygous SLURP-1 G86R mutation. (2 of affected members developed melanoma.) Since there is currently no effective treatment for metastatic melanoma, identifying novel molecular mechanisms may lead to development of new treatments for metastatic melanomas. Previous study showed that melanoma stem cells (MSCs) are crucial in melanoma pathogenesis: 1.Melanoma contains ABCB5, CD133 and ABCG2 positive cells had enhanced tumorigenic potential. 2.Higher frequencies of cells capable of initiating melanoma xenografts when using IL2Rγ-/- NOD SCID mice. These data confirmed the interaction between T cells and MSCs. In this project, we will investigate the roles of SLURP-1 in melanoma and MSCs. Investigating and verifying the interaction between T-cells from patients with MDM and melanoma cells to confirm the SLURP-1 function of tumorigenesis in xenotransplant mice (IL2Rγ-/- NOD SCID) model. To reveal the role of SLURP-1 silencing in melanoma cell lines by using not only A2058 , A375 and MeWo mwlanima cell lines but also ABCB5+ melanoma cells and ABCB5- melanoma cells through the tumorigenesis, apoptosis,angiogenesis, proliferation, melanosphere formation assays. The aim of this project is to investigate the roles and molecular mechanisms of SLURP-1 in melanoma carcinogenesis, which may improve the development of novel treatments for melanoma.

NCT01281722 Melanoma;
MeSH: Melanoma
HPO: Cutaneous melanoma Melanoma



Time Perspective: Prospective

Case Control


There is one SNP

SNPs


1 G86R

The preliminary results of comparing human peripheral blood mononuclear cells (PBMCs) from 4 affected and 15 unaffected members from the family with MDM revealed that T-cell activation was impaired in PBMCs with the heterozygous and homozygous SLURP-1 G86R mutation. --- G86R ---

The previous study showed that peripheral blood mononuclear cells (PBMCs) with the heterozygous and homozygous SLURP-1 G86R mutation had defective T-cell activation. --- G86R ---



HPO Nodes


HPO:
Cutaneous melanoma
Genes 15
HRAS MITF CDKN2A BRAF NRAS NRAS WRN CDKN2A CXCR4 BAP1 POLH CDK4 ERCC3 XPC MC1R
Melanoma
Genes 98
MGMT NRAS POT1 NRAS XPA CTSC BRCA1 SDHC ERCC4 CXCR4 RAD51C CDKN2B ERCC3 XPC PALLD ERCC2 ERCC2 CHEK2 CDKN2A RAD51D GNAQ SDHD KRAS MBTPS2 BAP1 BAP1 CYSLTR2 RNF43 BAP1 CDKN2A PTPN11 CDK4 BRCA2 ERCC3 MITF TERF2IP ERCC4 CHEK2 BRCA1 TRPV3 POT1 OCA2 TERT CDKN2A AKT1 CDKN2A SF3B1 ERCC6 ERCC5 ERCC5 MDM2 BRCA2 BAP1 GNA11 ACD BRIP1 HRAS MRE11 BRAF TYR TP53 KLLN SEC23B PTEN PIK3CA XPA PERP MITF RAF1 BRAF POLH TP53 BARD1 NRAS SMAD4 RAD50 DDB2 ERCC2 NBN TERT MC1R SLC45A2 WRN PALB2 DDB2 PALB2 CDKN2A SDHB MC1R RAD51 TP53 XPC ERCC3 PTEN CDKN2A POLH CDK4 MC1R