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Updated: Jan 25, 2026

Establishment of Gastric Cancer Patient-derived Xenograft Models and Primary Cell Lines
Published on: July 19, 2019
[Somatostatin receptor subtype 2 mRNA expression in human gastric immortalized cell line and tumor cell lines]
1Department of Gastroenterology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
Objective:
Inhibition of somatostatin on cell proliferation via somatostatin receptor subtype 2 (SS-R2), suggested this receptor subtype may be involved in tumor growth. Present study is to demonstrate whether SS-R2 was expressed in tumor cell lines extensively as well as in human gastric epithelia immortalized cell line. Meanwhile, the effect of p53 mutation on SS-R2 expression in gastric cancer cell line was also elucidated.
Methods:
Full-length human somatostatin receptor subtype 2 cDNA was cloned by RT-PCR. Using cDNA as the probe and RT-PCR, expression of mRNA for SS-R2 in 9 cancer cell lines and human gastric immortalized cell line was detected.
Results:
Data revealed that most cancer cell lines but a pancreatic cancer cell line expressed SS-R2 mRNA.
Conclusion:
Regardless whether p53 mutation or not in human gastric cancer cell lines, SS-R2 mRNA was transcribed.
Insights
Somatostatin receptor subtype 2 (SS-R2) mRNA is expressed in most gastric cancer cell lines, irrespective of p53 mutation status. This finding suggests SS-R2
Area of Science:
- Oncology
- Molecular Biology
- Gastroenterology
Background:
- Somatostatin receptor subtype 2 (SS-R2) is implicated in cell proliferation and tumor growth.
- Understanding SS-R2 expression in gastric cancer is crucial for therapeutic targeting.
Purpose of the Study:
- To investigate the expression of SS-R2 mRNA in various cancer cell lines and a human gastric immortalized cell line.
- To determine the influence of p53 mutation on SS-R2 expression in gastric cancer.
Main Methods:
- Cloning of full-length human SS-R2 cDNA using RT-PCR.
- Detection of SS-R2 mRNA expression via RT-PCR in 9 cancer cell lines and a human gastric immortalized cell line.
Main Results:
- SS-R2 mRNA was detected in the majority of tested cancer cell lines.
- A pancreatic cancer cell line did not express SS-R2 mRNA.
Conclusions:
- SS-R2 mRNA transcription occurs in human gastric cancer cell lines, independent of p53 mutation status.
- The presence of SS-R2 in gastric cancer cells warrants further investigation for its role in tumor development.
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