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Original Article
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Volume 317:1109-1113 October 29, 1987 Number 18
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Molecular analysis of the short arm of chromosome 3 in small-cell and non-small-cell carcinoma of the lung
H Brauch, B Johnson, J Hovis, T Yano, A Gazdar, OS Pettengill, S Graziano, GD Sorenson, BJ Poiesz, J Minna, and et al.

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Abstract

Previous studies have suggested that the loss of DNA sequences on the short arm of chromosome 3 (3p) is associated with small-cell lung carcinoma. We therefore looked for loss of 3p alleles in tumor tissue from 42 patients with either small-cell or non-small-cell lung carcinoma. All 13 patients with small-cell lung carcinoma who were heterozygous for one or more alleles at 3p in normal tissue had the loss of at least one codominant allele in the tumor tissue. Cell lines of small-cell lung carcinoma from an additional eight patients were homozygous for 3p alleles; this result was significantly different from the predicted frequency of homozygosity. The tumor tissue studied included cell lines of small-cell lung carcinoma obtained from biopsy specimens, an autopsy sample, and an excised lymph node containing tumor cells. Loss of alleles at 3p was observed in tumor samples obtained before and after chemotherapy. Four of 15 evaluable patients with non-small-cell carcinoma of the lung had loss of 3p alleles. We conclude that loss of alleles at 3p is a change found consistently in small-cell lung carcinoma and occasionally in non-small-cell lung carcinoma.


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Laboratory of Immunobiology, National Cancer Institute-Frederick Cancer Research Facility, MD 21701.


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