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Isolation of Normal and Cancer-associated Fibroblasts from Fresh Tissues by Fluorescence Activated Cell Sorting (FACS)
Published on: January 14, 2013
THE FUNDAMENTAL PROPERTIES OF THE FIBROBLAST AND THE MACROPHAGE : III. THE MALIGNANT FIBROBLAST OF SARCOMA 10 OF THE
1Laboratories of The Rockefeller Institute for Medical Research.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Malignant rat fibroblasts, isolated from Sarcoma 10, exhibit enhanced growth in specific media and liquefy plasma, unlike normal fibroblasts. These findings offer insights into tumor cell proliferation and survival mechanisms.
Area of Science:
- Cell Biology
- Oncology
- Biochemistry
Background:
- Fibroblasts are crucial connective tissue cells.
- Cancer research often involves in vitro cell line studies.
- Understanding tumor cell behavior is key to developing treatments.
Purpose of the Study:
- To isolate and characterize a pure strain of malignant fibroblasts from Sarcoma 10.
- To compare the in vitro behavior of these malignant fibroblasts with normal rat fibroblasts.
- To identify factors influencing the growth and survival of sarcoma fibroblasts.
Main Methods:
- Isolation and long-term in vitro cultivation of sarcoma fibroblasts.
- Morphological and functional comparison with normal rat fibroblasts.
- Growth assays using various nutrient media, including chick embryo juice, rat serum, and calf liver digest.
Main Results:
- Malignant fibroblasts showed enhanced growth in chick embryo juice and calf liver digest, unlike normal fibroblasts.
- Sarcoma fibroblasts liquefied rat plasma coagulum and altered phenol red indicator, while normal fibroblasts did not.
- Bone marrow significantly increased sarcoma fibroblast growth rate in rat serum.
- Malignant cells were larger, coarser, and more refringent than normal cells but shared morphological characteristics.
Conclusions:
- Sarcoma fibroblasts possess distinct metabolic and growth properties compared to normal fibroblasts.
- Specific nutrient compositions and cellular factors (e.g., bone marrow, macrophages) significantly influence tumor cell proliferation.
- These findings contribute to understanding the in vitro characteristics of tumor fibroblasts and their potential in vivo growth factors.
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