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Isolation of Cancer Stem Cells From Human Prostate Cancer Samples

Isolation of Cancer Stem Cells From Human Prostate Cancer Samples

Published on: March 14, 2014

ILs-3, 6 and 11 increase, but ILs-10 and 24 decrease stemness of human prostate cancer cells in vitro.

Dandan Yu¹, Yali Zhong¹, Xiaoran Li²

¹Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Henan, China.

|November 4, 2015

Summary

Certain interleukins (ILs) impact prostate cancer cell growth and metastasis. IL-3, IL-6, and IL-11 promote cancer stemness and tumor growth, while IL-10 and IL-24 act as tumor suppressors, affecting chemotherapy sensitivity.

Keywords:

CD44 and ABCG2 cancer stem cells chemotherapy cytokines interleukin

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Area of Science:

Oncology
Cell Biology
Molecular Biology

Background:

Cancer stem cells (CSCs) drive tumor recurrence and metastasis, particularly in prostate cancer bone metastasis.
The tumor microenvironment, rich in cytokines, influences cancer cell survival and progression.

Purpose of the Study:

To investigate the in vitro effects of specific interleukins (IL-3, IL-6, IL-10, IL-11, IL-24) on prostate cancer cell stemness, proliferation, migration, and invasion.
To determine the influence of these interleukins on chemotherapy sensitivity.

Main Methods:

Utilized human prostate cancer cell lines (LNCaP, PC-3).
Assessed cell proliferation (SRB, EdU assays), migration/invasion (wound healing, Transwell assays), and colony formation.
Analyzed stemness factor expression (SOX2, CD44, ABCG2) via Western blotting and flow cytometry.
Evaluated chemotherapy sensitivity to docetaxel.

Main Results:

IL-3, IL-6, and IL-11 stimulated proliferation, invasion, migration, and colony formation, while increasing stemness markers (SOX2, CD44, ABCG2).
IL-10 and IL-24 inhibited these processes and decreased stemness markers.
IL-3, IL-6, and IL-11 reduced docetaxel sensitivity, whereas IL-10 and IL-24 enhanced it.

Conclusions:

IL-3, IL-6, and IL-11 act as tumor promoters in prostate cancer cells by enhancing stemness.
IL-10 and IL-24 function as tumor suppressors, potentially sensitizing cells to chemotherapy.
These findings highlight distinct roles of interleukins in prostate cancer progression and treatment response.