A small number of cancer cells express stem cell markers (e.g. CD133 and ATP-binding cassette transporters). So cancers contain stem cell-like cancer cells, called "cancer stem cells (CSCs)". But cancer cell lines do not have any contaminating normal stem cells.
Finally it means: Stem Like Cancer cells, are cancer cells and not normal cells but have similarity to stem cells.
Stem cells and cancer cells, both are capable of unlimited proliferation. Some stem cells have similarity to cancer cells and called Cancer like-stem cells.
Finally it means: cancer Like stem cells, are not cancer cells and normal stem cells but have similarity to cancer cells.
Cancer stem cells are stem cells found within tumor and they are tumor forming. Stem like cancer cells are cells that resistance to cancer therapy..... I hope I was of use.
please go to this site which could be of use:- http://www.macrogenics.com/content/file/MacroGenics_Factsheet_CSCs.pdf