MMP9 and Neoplasm of the lung: However, we observed that patients with other lung neoplasms with the -1562CT genotype had a statistically higher MMP-9 concentration (x ̄ = 928.88 ng/mL) than patients with other lung neoplasms with the -1562CC genotype (x ̄ = 821.64 ng/mL, p = 0.023315).