Genetic alteration in carcinoid tumors of the lung.

Kenji Sugio, Toshihiro Osaki, Tsunehiro Oyama, Mitsuhiro Takenoyama, Takeshi Hanagiri, Masaru Morita, Koji Yamazaki, Akira Nagashima, Hisashi Nakahashi, Yoshihiko Maehara, Kosei Yasumoto

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Abstract

Surgically resected specimens of 13 carcinoid tumors of the lung including nine typical carcinoids and four atypical carcinoids, and eight salivary gland type carcinomas (six mucoepidermoid carcinomas and two adenoid cystic carcinomas) were analyzed regarding p53 expression, loss of heterozygosity (LOH) in chromosome 3p, 9p, and K-ras mutation. The overexpression of p53 was identified in four atypical carcinoid tumors, one mucoepidermoid carcinoma, and one adenoid cystic carcinoma, however, none of typical carcinoids showed p53 immunoreactivity. LOH in 3p14 was demonstrated in three of seven informative cases in all tumors. LOH in 9p was demonstrated in two of five informative cases in all tumors. Two of three cases with LOH at 3p14 had a poor prognosis, one of which also had LOH at 9p. No mutation of the K-ras gene was observed in any of these tumors. These data thus indicate that p53 overexpression might distinguish atypical carcinoid tumors from typical tumors and might therefore be useful as an adjunct modality in the differential diagnosis of pulmonary carcinoid tumors. The presence of LOH at 3p14 or 9p may thus help to identify lung cancer patients with a poor prognosis.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalAnnals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia
Volume9
Issue number3
Publication statusPublished - Jan 1 2003

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Carcinoid Tumor
Loss of Heterozygosity
Lung
Mucoepidermoid Carcinoma
Adenoid Cystic Carcinoma
Neoplasms
Mutation
ras Genes
Salivary Glands
Lung Neoplasms
Differential Diagnosis
Chromosomes
Carcinoma

All Science Journal Classification (ASJC) codes

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine
  • Gastroenterology

Cite this

Genetic alteration in carcinoid tumors of the lung. / Sugio, Kenji; Osaki, Toshihiro; Oyama, Tsunehiro; Takenoyama, Mitsuhiro; Hanagiri, Takeshi; Morita, Masaru; Yamazaki, Koji; Nagashima, Akira; Nakahashi, Hisashi; Maehara, Yoshihiko; Yasumoto, Kosei.

In: Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia, Vol. 9, No. 3, 01.01.2003, p. 149-154.

Research output: Contribution to journalArticle

Sugio, K, Osaki, T, Oyama, T, Takenoyama, M, Hanagiri, T, Morita, M, Yamazaki, K, Nagashima, A, Nakahashi, H, Maehara, Y & Yasumoto, K 2003, 'Genetic alteration in carcinoid tumors of the lung.', Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia, vol. 9, no. 3, pp. 149-154.
Sugio, Kenji ; Osaki, Toshihiro ; Oyama, Tsunehiro ; Takenoyama, Mitsuhiro ; Hanagiri, Takeshi ; Morita, Masaru ; Yamazaki, Koji ; Nagashima, Akira ; Nakahashi, Hisashi ; Maehara, Yoshihiko ; Yasumoto, Kosei. / Genetic alteration in carcinoid tumors of the lung. In: Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia. 2003 ; Vol. 9, No. 3. pp. 149-154.
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