ABSTRACT
Sialyltransferase gene expression is altered in several cancers, including examples in the cervix. Transcriptional regulation of the responsible genes depends on different promoters. We aimed to determine the association of single-nucleotide polymorphisms in the B3 promoter of the ST3GAL4 gene and the P1 promoter of the ST6GAL1 gene with cervical premalignant lesions or cervical cancer. A blood sample and/or cervical scrapes were obtained from 104 women with normal cytology, 154 with premalignant lesions and 100 with cervical cancer. We also included 119 blood samples of random donors. The polymorphisms were identified by sequencing from PCR products. For the B3 promoter, a fragment of 506 bp (from nucleotide -408 to +98) was analyzed, and for the P1 promoter a 490 bp (-326 to +164) fragment. The polymorphism analysis showed that at SNP rs10893506, genotypes CC and CT of the ST3GAL4 B3 promoter were associated with the presence of premalignant lesions (OR=2.89; 95%CI 1.72-4.85) and cervical cancer (OR=2.23; 95%CI 1.27-3.91). We detected only one allele of each polymorphism in the ST6GAL1 P1 promoter. We did not detect any genetic variability in the P1 promoter region in our study population. Our results suggest that the rs10893506 polymorphism -22C/T may increase susceptibility to premalignant and malignant lesions of the cervix.
Subject(s)
Antigens, CD/genetics , Cervix Uteri/pathology , Precancerous Conditions/genetics , Sialyltransferases/genetics , Uterine Cervical Neoplasms/genetics , Antigens, CD/blood , Base Sequence , Female , Genetic Predisposition to Disease , Humans , Polymorphism, Single Nucleotide , Precancerous Conditions/pathology , Promoter Regions, Genetic , Protein Isoforms/genetics , Sequence Analysis, DNA , Sialyltransferases/blood , Uterine Cervical Neoplasms/blood , beta-Galactoside alpha-2,3-SialyltransferaseABSTRACT
Se presenta la experiencia con 72 pacientes con diferentes patologías, en quienes se realizó tratamiento endovascular con embolización selectiva. Se discuten la técnica, diferentes materiales utilizados, resultados y complicaciones. Se concluye que la EE constituye una excelente alternativa terapéutica pre-quirúrgica, paliativa o definitiva, de fácil realización en centros especialmente entrenados
Subject(s)
Humans , Male , Female , Embolization, Therapeutic/methods , Aneurysm/therapy , Angiography , Contrast Media , Embolization, Therapeutic/adverse effects , Embolization, Therapeutic/instrumentation , Epistaxis/therapy , Gelatin Sponge, Absorbable/therapeutic use , Hematuria/therapy , Hemoptysis/therapy , Iodates , Kidney Neoplasms/therapy , Methylcellulose/therapeutic use , Palliative Care , Varicocele/therapyABSTRACT
Se presenta la experiencia con 72 pacientes con diferentes patologías, en quienes se realizó tratamiento endovascular con embolización selectiva. Se discuten la técnica, diferentes materiales utilizados, resultados y complicaciones. Se concluye que la EE constituye una excelente alternativa terapéutica pre-quirúrgica, paliativa o definitiva, de fácil realización en centros especialmente entrenados
