MMP7 and cervical cancer: In the work of Wu et al. [22] concerning MMP-7, the authors described identical relationships as observed in our study, in that both mRNA expression and MMP-7 protein level in cervical cancer tissues were the lowest in healthy cervical tissues, were higher in the group with no metastases present, and were the highest in the group of high-malignancy tissues with lymph metastases present.