האתר הלא רשמי של כפר האמנים עין הוד Ein Hod Artists Village Casual Site
[Gene silencing RNAi technology: possible application to therapy]
Vestin A, Weinstein J, Davidov E, Sidi Y, Yakobson EA
Harefuah 2006 Feb; 145(2)
RNA interference (RNAi), i.e. gene silencing, or gene expression down-regulation is the process whereby a double-stranded RNA (dsRNA) induces the homology-dependent degradation of cognate messenger RNA (mRNA). When dsRNA is introduced into cells, an ... expand abstractRNA-induced silencing complex (RISC) is assembled. RISC serves as cellular machinery that is responsible for the specific mRNA degradation. This process results in the subsequent reduction of the specific protein translated from appropriate mRNA. Short RNA duplexes (21 nucleotide), called small interfering RNA (siRNA), have become the major tool for induction of gene silencing. With the human genome mapped and sequenced, attempts are currently being made to manipulate the expression of genes involved in viral diseases, carcinogenesis and other disorders with the aim of developing novel therapies. collapse abstract
Search for germline alterations in CDKN2A/ARF and CDK4 of 42 Jewish melanoma families with or without neural system tumours.
Marian C, Scope A, Laud K, Friedman E, Pavlotsky F, Yakobson E, Bressac-de paillerets B, Azizi E
British journal of cancer 2005 Jun; 92(12)
To gain insight into the molecular mechanisms involved in the inherited predisposition to melanoma and associated neural system tumours, 42 Jewish, mainly Ashkenazi, melanoma families with or without neural system tumours were genotyped for germline ... expand abstractpoint mutations and genomic deletions at the CDKN2A/ARF and CDK4 loci. CDKN2A/ARF deletion detection was performed using D9S1748, an intragenic microsatellite marker. Allele dosage at the p14ARF locus was analysed by quantitative real-time PCR employing a TaqMan probe that anneals specifically to exon 1beta of the p14ARF gene. For detecting point mutations, dHPLC and direct sequencing of the coding sequences of CDKN2A/ARF and CDK4 was used. No germline alterations in any of the tested genes were detected among the families under study. We conclude that in the majority of Ashkenazi Jewish families, the genes tested are unlikely to be implicated in the predisposition to melanoma and associated neural system tumours. collapse abstract
Search for genetic variants associated with cutaneous malignant melanoma in the Ashkenazi Jewish population.
Loo JC, Paterson AD, Hao A, Shennan M, Peretz H, Sidi Y, Hogg D, Yakobson E
Journal of medical genetics 2005 May; 42(5)
A single Mediterranean, possibly Jewish, origin for the Val59Gly CDKN2A mutation in four melanoma-prone families.
Yakobson E, Eisenberg S, Isacson R, Halle D, Levy-lahad E, Catane R, Safro M, Sobolev V, Huot T, Peters G, Ruiz A, Malvehy J, Puig S, Chompret A, Avril MF, Shafir R, Peretz H, Bressac-de paillerets B
European journal of human genetics : EJHG 2003 Apr; 11(4)
We have screened for CDKN2A germline mutations in 49 Jewish families with two or more cases of melanoma. The Val59Gly mutation, one of the three different alterations identified among these families, was also detected independently in two kindreds fr... expand abstract