Document Detail


Molecular and clinicopathologic comparisons of head and neck squamous carcinoma variants: common and distinctive features of biological significance.
MedLine Citation:
PMID:  15371945     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To investigate, for the first time, the events associated with the phenotypic and clinical diversities of head and neck squamous carcinomas (HNSC), we performed molecular analyses on 92 primary tumors representing the entire spectrum of the morphologic subtypes using microsatellite markers at chromosome 3p, 4p, 8p, 9p, 11q, 17p, and 18q regions and correlated the results with the clinicopathologic features and patients' survival. Loss of heterozygosity (LOH) at D9S168 and D9S171 markers on chromosome 9p regions was commonly identified in all subtypes. Distinctive alterations in certain subtypes were noted at chromosomes 3p, 4p, 8p, and 11p regions. In general, less aggressive types (verrucous, papillary, and well-differentiated conventional) had a significantly lower LOH incidence than the more aggressive (basaloid, sarcomatoid, and high-grade conventional squamous carcinoma) categories. Significant association between LOH and age, stage, nodal status, and patient outcome was found. Survival analysis revealed that pathologic categorization (less versus more aggressive) and LOH at marker D11S4167 and D3S2432 are independent predictors of patients' survival. Our analysis also defined a set of limited markers that account for most of alterations within and across these tumor subtypes. Our study indicates that 1) certain genetic markers are common to all subtypes of HNSC supporting their early involvement in tumorigenesis, 2) inter- and intratumoral genetic differences evolve subsequently and may underlie their morphologic heterogeneity, 3) high incidence of LOH in certain regions characterizes aggressive tumors, 4) categorical classification and LOH at 11p and 3p regions independently correlated with patient survival, and 5) a limited set of markers identify the majority of genetic alterations in these tumors.
Authors:
Hong Ran Choi; Dianna B Roberts; Richard H Johnigan; Erich M Sturgis; David I Rosenthal; Randal S Weber; Mario A Luna; John G Batsakis; Adel K El-Naggar
Related Documents :
11280775 - Mapping the sites of putative tumor suppressor genes at 6p25 and 6p21.3 in cervical car...
15222005 - Laser capture microdissection analysis reveals frequent allelic losses in papillary uro...
11078815 - Genome-wide allelotype analysis of sporadic primary nasopharyngeal carcinoma from south...
11642545 - Clinical significance of molecular genetic changes in sporadic invasive pituitary adeno...
15589155 - Micromanipulation of chromosomes reveals that cohesion release during cell division is ...
16323785 - Measurements of oh reactivity and photochemical ozone production in the urban atmosphere.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of surgical pathology     Volume:  28     ISSN:  0147-5185     ISO Abbreviation:  Am. J. Surg. Pathol.     Publication Date:  2004 Oct 
Date Detail:
Created Date:  2004-09-16     Completed Date:  2004-11-09     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7707904     Medline TA:  Am J Surg Pathol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1299-310     Citation Subset:  IM    
Affiliation:
Department of Pathology, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Carcinoma, Squamous Cell / genetics*,  pathology*
Head and Neck Neoplasms / genetics*,  pathology*
Humans
Loss of Heterozygosity*
Male
Microsatellite Repeats
Middle Aged
Survival Analysis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Basal cell proliferations of the prostate other than usual basal cell hyperplasia: a clinicopatholog...
Next Document:  Endocervical-like mucinous borderline tumors of the ovary: a clinicopathologic analysis of 31 cases.