The aim of this study was to investigate whether so far unknown chromosomal alterations in pleomorphic adenoma (PA) exist. To this end, tissue samples from 18 patients with parotid gland PA were studied by comparative genomic hybridization (CGH) using Phi-29-DNA-polymerase for DNA amplification. The most common aberrations were losses of chromosomal material of 19p (6/18), 9q, 16p, and 19q (in 3 out of 18 patients each). Additional losses were observed on 4p, 5q, and 17q (2 / 18 each). Gains involved chromosomes 2p, 4p, 6p, 17q, and 21q (2 / 18 each). Losses of 19p have been associated with inactivation of tumor-suppressor genes in carcinomas previously. As a result, pleomorphic adenomas show a considerable diversity of chromosomal gains and losses detected by CGH. The 19p arm, and particularly its 19p13 region, need be further studied to elucidate the potential impact of associated lost tumor suppressor genes on PA development.
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Univ Oklahoma, Hlth Sci Ctr, Genet Lab, 1122 NE 13th St,Suite 1400, Oklahoma City, OK 73104 USAUniv Oklahoma, Hlth Sci Ctr, Genet Lab, 1122 NE 13th St,Suite 1400, Oklahoma City, OK 73104 USA
Li, Wenfu
Wang, Xianfu
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Univ Oklahoma, Hlth Sci Ctr, Genet Lab, 1122 NE 13th St,Suite 1400, Oklahoma City, OK 73104 USAUniv Oklahoma, Hlth Sci Ctr, Genet Lab, 1122 NE 13th St,Suite 1400, Oklahoma City, OK 73104 USA
Wang, Xianfu
Li, Shibo
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Univ Oklahoma, Hlth Sci Ctr, Genet Lab, 1122 NE 13th St,Suite 1400, Oklahoma City, OK 73104 USAUniv Oklahoma, Hlth Sci Ctr, Genet Lab, 1122 NE 13th St,Suite 1400, Oklahoma City, OK 73104 USA
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Univ Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Mateo, Elvis Cueva
Lorea, Cecilia F.
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Univ Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Lorea, Cecilia F.
Duarte, Antonio A.
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Univ Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Duarte, Antonio A.
Moreno, Daniel
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Univ Sao Paulo, Dept Genet, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Moreno, Daniel
Neder, L.
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Univ Sao Paulo, Dept Pathol, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Neder, L.
Tucci Junior, Silvio
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Univ Sao Paulo, Dept Anat & Surg, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Tucci Junior, Silvio
Scrileli, Carlos A.
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Univ Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil
Scrileli, Carlos A.
Tone, Luiz G.
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Univ Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, BrazilUniv Sao Paulo, Dept Pediat, Div Pediat Oncol, Sch Med Ribeirao Preto, Sao Paulo, Brazil