Abstract
Chromosomal homogeneous staining region (hsr), which is a cytogenetic indication of gene amplification, was found in the pleural effusion (BHII) of a patient with small cell lung cancer (SCLC) after failure of multiple drug treatments. Amplification of band 11q13 was identified as the origin of the hsr by means of chromosomal microdissection combined with G-banding, DNA amplification by polymerase chain reaction, and fluorescence in situ hybridization (micro-FISH). In situ hybridization with the biotin-labeled DNA probe generated from the hsrs of BHII to the cell line BHI, which was established from the lymph node metastasis prior to chemotherapy, revealed the preexistence of 11q13 amplification. This ruled out the possibility of therapeutic induction of the 11q13 amplification. However, the hsr-bearing marker chromosomes were identified by the micro-FISH approach as der(21)(Xqter-→Xq24::hsr(II)(q13)::21p11→21qter) in BHII but as der(11)t(3;11)(q21;q13)hsr(11)(q13) in BHI. This suggests that 11q13 DNA sequence amplification may occur first and is then followed by various types of structural rearrangements. FISH analysis with INT2/FGF3 and HST1/FGF4 probes revealed that these protooncogenes were coamplified in the hsrs of BHI and BHII. The results obtained suggest that 11q13 amplification and the successive structural rearrangement may play an important role in the progression of the disease and its therapeutic response.
| Original language | English |
|---|---|
| Pages (from-to) | 172-178 |
| Number of pages | 7 |
| Journal | Genes Chromosomes and Cancer |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - Nov 1 1996 |
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ASJC Scopus subject areas
- Cancer Research
- Genetics
Cite this
Detection of 11q13 amplification as the origin of a homogeneously staining region in small cell lung cancer by chromosome microdissection. / Xu, Jia; Tyan, Tina; Cedrone, Edward; Savaraj, Niramol; Wang, Nancy.
In: Genes Chromosomes and Cancer, Vol. 17, No. 3, 01.11.1996, p. 172-178.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Detection of 11q13 amplification as the origin of a homogeneously staining region in small cell lung cancer by chromosome microdissection
AU - Xu, Jia
AU - Tyan, Tina
AU - Cedrone, Edward
AU - Savaraj, Niramol
AU - Wang, Nancy
PY - 1996/11/1
Y1 - 1996/11/1
N2 - Chromosomal homogeneous staining region (hsr), which is a cytogenetic indication of gene amplification, was found in the pleural effusion (BHII) of a patient with small cell lung cancer (SCLC) after failure of multiple drug treatments. Amplification of band 11q13 was identified as the origin of the hsr by means of chromosomal microdissection combined with G-banding, DNA amplification by polymerase chain reaction, and fluorescence in situ hybridization (micro-FISH). In situ hybridization with the biotin-labeled DNA probe generated from the hsrs of BHII to the cell line BHI, which was established from the lymph node metastasis prior to chemotherapy, revealed the preexistence of 11q13 amplification. This ruled out the possibility of therapeutic induction of the 11q13 amplification. However, the hsr-bearing marker chromosomes were identified by the micro-FISH approach as der(21)(Xqter-→Xq24::hsr(II)(q13)::21p11→21qter) in BHII but as der(11)t(3;11)(q21;q13)hsr(11)(q13) in BHI. This suggests that 11q13 DNA sequence amplification may occur first and is then followed by various types of structural rearrangements. FISH analysis with INT2/FGF3 and HST1/FGF4 probes revealed that these protooncogenes were coamplified in the hsrs of BHI and BHII. The results obtained suggest that 11q13 amplification and the successive structural rearrangement may play an important role in the progression of the disease and its therapeutic response.
AB - Chromosomal homogeneous staining region (hsr), which is a cytogenetic indication of gene amplification, was found in the pleural effusion (BHII) of a patient with small cell lung cancer (SCLC) after failure of multiple drug treatments. Amplification of band 11q13 was identified as the origin of the hsr by means of chromosomal microdissection combined with G-banding, DNA amplification by polymerase chain reaction, and fluorescence in situ hybridization (micro-FISH). In situ hybridization with the biotin-labeled DNA probe generated from the hsrs of BHII to the cell line BHI, which was established from the lymph node metastasis prior to chemotherapy, revealed the preexistence of 11q13 amplification. This ruled out the possibility of therapeutic induction of the 11q13 amplification. However, the hsr-bearing marker chromosomes were identified by the micro-FISH approach as der(21)(Xqter-→Xq24::hsr(II)(q13)::21p11→21qter) in BHII but as der(11)t(3;11)(q21;q13)hsr(11)(q13) in BHI. This suggests that 11q13 DNA sequence amplification may occur first and is then followed by various types of structural rearrangements. FISH analysis with INT2/FGF3 and HST1/FGF4 probes revealed that these protooncogenes were coamplified in the hsrs of BHI and BHII. The results obtained suggest that 11q13 amplification and the successive structural rearrangement may play an important role in the progression of the disease and its therapeutic response.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029955068&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1098-2264(199611)17:3<172::AID-GCC5>3.0.CO;2-1
DO - 10.1002/(SICI)1098-2264(199611)17:3<172::AID-GCC5>3.0.CO;2-1
M3 - Article
C2 - 8946196
AN - SCOPUS:0029955068
VL - 17
SP - 172
EP - 178
JO - Genes Chromosomes and Cancer
JF - Genes Chromosomes and Cancer
SN - 1045-2257
IS - 3
ER -