MALAT1 and primary cutaneous T-cell non-Hodgkin lymphoma: In view of the controversy surrounding the oncogenic vs. tumor suppressor role of MALAT1 in human cancers, we started with the quantitation of CTCL in serum of CTCL patients in our cohort and we further employed CTCL cell lines HH and H9 to further characterize the role of MALAT1 in CTCL.