Effect of HDGFRP3 siRNAs on different MCL cell lines. A total of 6 MCL cell lines were electroporated with 100 pmol of a pool of siRNAs targeting the HDGFRP3 (□), negative control siRNA (▩), or Eg5⁺ control (■). At 72 hours after transfection, the proliferation of each cell line was determined.