transcription (Qiagen) according to the manufacturer's instruction. Quantitative
PCR (qPCR) was performed using SYBR green PCR master mix and ABI 7900HT (Applied
Biosystems). Human tata-box binding protein (hTBP) was used as internal control and the
primers for all tested genes were listed in
expression was calculated as described previously 61 . Cellular proteins were extracted using RIPA buffer (Life
Technologies) and dissolved in SDS-PAGE reducing buffer (Life Technologies). Immunoblots
were developed using rabbit anti-human NRP1 antibody and mouse anti-β actin
antibody. IRDye secondary antibodies were used to detect the primary antibodies and the
blots were imaged with Odyssey (Li-Cor).