Words similar to gcts
Example sentences for: gcts
How can you use “gcts” in a sentence? Here are some example sentences to help you improve your vocabulary:
3 region to which RASSF1A maps undergoes deletions in many solid tumor types, including GCTs [ 9 ] . RASSF1A encodes a splice variant of human RAS effector homologue, which interacts with the XPA protein and functions as a negative regulator of cell growth [ 16 17 ] . RASSF1A has been shown to be inactivated by promoter methylation in a variety of tumor types [ 16 17 18 19 ] . The 17q21 and 17p13 regions, to which BRCA1 and HIC1 map, respectively, also have been characterized by high frequency of LOH in GCT [ 9 ] . The BRCA 1 gene plays critical roles in DNA repair and recombination, cell cycle checkpoint control, and transcription and has been shown to be hypermethylated in breast-ovarian cancer [ 4 ] . The HIC1 gene is also often hypermethylated in many human cancers [ 20 21 22 ] . The DNA repair gene MGMT encodes O(6)-methylguanine-DNA methyltransferase and this enzyme effectively removes DNA adducts formed by alkylating agents [ 23 ] . Epigenetic inactivation of the MGMT gene was reported in a wide variety of cancers [ 24 25 ] . Also, a low frequency of methylation of the APC , RARB , and FHIT genes was detected in NSGCTs.
Lack of MGMT expression in the majority of GCTs suggests a potential role for this protein in lack of repair of cisplatin-induced DNA damage that may result in exquisite sensitivity in this tumor.
The data presented here show that promoter hypermethylation is an important molecular signature differentiating seminomatous and nonseminomatous GCTs.
It has been shown that engineered over-expression of wild-type p53 in vitro causes inhibition of MGMT transcription in human tumor cells [ 29 ] . Abundant over-expression of wild-type p53, owing to their stage of origin, is a characteristic feature of GCTs [ 30 ] . A possibility also exists that the MGMT expression may, in general, be down regulated in tumors arising from embryonic-type cells.
7%) GCTs studied with an individual gene frequency of: RASSF1A , 21.
Loading...