MMP3 and head and neck squamous cell carcinoma: The author's group recently reviewed the molecular functions and single nucleotide polymorphic association of different MMPs such as MMP-1 (-1607 1G/2G), MMP-2 (-1306 C/T), MMP-3 (-1171 5A/6A), MMP-9 (-1562 C/T) and TIMP-2 (-418 G/C or C/C) and it's possible therapeutic aspects of these proteases and they concluded that MMPs may play an association with potentially malignant (OSMF) and malignant head and neck lesions (HNSCC).