MEG3 and cancer: Compared with that in cancer-free volunteers (with or without HPV infection), the expression of exosomal lncRNAs hox transcript antisense intergenic RNA (HOTAIR) and metastasis-associated lung carcinoma transcript 1 (MALAT1) was upregulated, whereas the expression of exosomal lncRNA maternally expressed gene 3 (MEG3) was downregulated in the cervicovaginal lavage fluid of cervical cancer patients.131