How Omental Stem Cells Affect Gastric Cancer Growth and Treatment Resistance
Author Information
Author(s): Kinoshita Jun, Doden Kenta, Sakimura Yusuke, Hayashi Saki, Saito Hiroto, Tsuji Toshikatsu, Yamamoto Daisuke, Moriyama Hideki, Minamoto Toshinari, Inaki Noriyuki
Primary Institution: Kanazawa University
Hypothesis
Do adipose-derived stem cells from the omentum contribute to peritoneal metastasis and chemotherapy resistance in gastric cancer?
Conclusion
Omental adipose-derived stem cells promote gastric cancer stemness and resistance to chemotherapy, suggesting new treatment strategies targeting these cells.
Supporting Evidence
- ASCs express cancer-associated fibroblast markers and promote desmoplasia in cancer stroma.
- Co-culturing ASCs with gastric cancer cells enhances sphere-forming efficiency and IL-6 secretion.
- Xenograft models show that ASCs reduce apoptosis in gastric cancer cells treated with chemotherapy.
Takeaway
This study shows that special cells from belly fat can help stomach cancer grow and make it harder to treat, which could lead to better ways to fight the cancer.
Methodology
The study involved isolating adipose-derived stem cells from human omental tissues and co-culturing them with gastric cancer cells to analyze their effects on cancer behavior.
Potential Biases
Potential bias due to the lack of comparison between different ASC sources and the complexity of the tumor microenvironment.
Limitations
The study lacks direct in vivo evidence linking IL-6 secretion to chemotherapy resistance and did not compare omental ASCs with subcutaneous ASCs.
Participant Demographics
Five patients who underwent gastrectomy for gastric cancer, none of whom had peritoneal metastases at the time of surgery.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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