title: [Clinical significance of HIF-1 alpha,VEGF and VEGF-C expression in papillary thyroid carcinoma].
abstract: OBJECTIVE
  To evaluate clinical significance of HIF-1 alpha,VEGF and VEGF-C expression in papillary thyroid carcinoma.
  
  
  METHODS
  HIF-1a,VEGF and VEGF-C expression were detected by immunohistochemical method in 73 patients of papillary thyroid carcinoma(group I ), 32 patients of thyroid adenoma(group II) and 35 patients of nodular goiter(group II ) respectively.
  
  
  RESULTS
  The expression of HIF-1 alpha in group I (75. 3%) was higher than that in group I (18. 8% ) and in group III (14. 3%) ( P <0. 01). The similar results were also observed about VEGF and VEGF-C. The positive rate of VEGF and VEGF-C (72. 6% and 65. 8%) in group I were markedly increased, compared with that in group II (18. 8% and 15. 6%, P<0. 01) or III (20. 0% and 11. 4%, P <0. 01) . In carcinoma patients with lymph node metastasis, the higher expressions of HIF-1a,VEGF and VEGF-C were observed as compared with those without metastasis( P <0. 05,respectively). VEGF and VEGF-C expression had a positive correlation with HIF-1 alpha ( P <0. 05).
  
  
  CONCLUSIONS
  In papillary thyroid carcinoma, HIF-1 alpha, VEGF and VEGF-C expression are significantly increased. Furthermore,VEGF and VEGF-C expression may be regulated by HIF-1 alpha, involving in the process of cancer cell spreading to lymph nodes.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
authors.forename: Yaqiu
authors.initials: Y
authors.lastname: Wang
authors.forename: Qingquan
authors.initials: Q
authors.lastname: Hua
mesh_terms: D000293:Adolescent; D000328:Adult; D002291:Carcinoma, Papillary / Q000378:metabolism* / Q000473:pathology; D002648:Child; D005260:Female; D006801:Humans; D051795:Hypoxia-Inducible Factor 1, alpha Subunit / Q000378:metabolism*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D013964:Thyroid Neoplasms / Q000378:metabolism* / Q000473:pathology; D042461:Vascular Endothelial Growth Factor A / Q000378:metabolism*; D042582:Vascular Endothelial Growth Factor C / Q000378:metabolism*; D055815:Young Adult
chemical_list: C497442:HIF1A protein, human; D051795:Hypoxia-Inducible Factor 1, alpha Subunit; C467484:VEGFA protein, human; C467486:VEGFC protein, human; D042461:Vascular Endothelial Growth Factor A; D042582:Vascular Endothelial Growth Factor C