Journal: Tumour Biology
Article Title: CXCL12-CXCR4 axis promotes the natural selection of breast cancer cell metastasis
doi: 10.1007/s13277-014-1816-1
Figure Lengend Snippet: The expression patterns of CXCL12 and CXCR4 in breast cancer cell lines. Total RNA and proteins were extracted from wild-type MCF-7, wild-type MDA-MB-435s, wild-type MDA-MB-231, MDA-MB-231–CXCL12 and MDA-MB-231–ZsGreen1. Then they were subjected to RT-PCR and western blot analysis, respectively, for CXCL12 and CXCR4. Both mRNA ( a ) and protein ( b ) expression of CXCR4 and very weak expression of CXCL12 were observed consistently in MDA-MB-231. CXCR4 and CXCL12 mRNA ( a ) and protein ( b ) expression was found in MDA-MB-435s. MCF-7 has very weak CXCR4 and CXCL12 mRNA and protein expression ( a and b ). So we picked MDA-MB-231 to be transfected with CXCL12. CXCL12 mRNA ( a ) and protein ( b ) expression was observed in MDA-MB-231–CXCL12 cells, but very weak in MDA-MB-231–ZsGreen1 or wild-type MDA-MB-231 cells. It is indicated that the stable CXCL12 transfection in MDA-MB-231 was successfully constructed
Article Snippet: Immunohistochemical staining for CXCL12 (sc-28876, 1:100, Santa Cruz, USA) and CXCR4 (sc-53534, 1:500, Santa Cruz, USA) was performed using UltraSensitiveTM S-P kits (Maixin-Bio, China) according to the manufacturer's instructions and using the reagent supplied with the kit.
Techniques: Expressing, Reverse Transcription Polymerase Chain Reaction, Western Blot, Transfection, Construct