Levels of Circulating TIMP-2 and MMP2-TIMP2 Complex Are Decreased in Squamous Cervical Carcinoma

الملخص EN

Background.

The role of matrix metalloproteinase-2 and -9 (MMP-2, MMP-9) in matrix degradation and metastasis has been described in various tumors.

Their action is inhibited by their natural tissue inhibitor molecules TIMP-1 and -2.

Methods.

The study population consisted of 12 squamous cervical carcinoma patients and 27 healthy volunteer control patients.

MMP-9, MMP-2-TIMP-2 complex, TIMP-1, and TIMP-2 were analyzed from serum samples using enzyme-linked immunoassay (ELISA).

Results.

The mean levels of serum TIMP-2 and of MMP-2-TIMP-2 complex were higher in healthy controls compared to patients with a malignant tumor.

Serum TIMP-2 values decreased significantly from healthy controls (median 323 μg/l, range 305–342 μg/l) to malignant (median 136 μg/l, range 120–151 μg/l) squamous cervical carcinoma patients (P<.000).

Also, serum proMMP2-TIMP2 complex values decreased from control patients to squamous cervical carcinoma patients (P<.006).

Conclusion.

This paper shows that the levels of circulating TIMP-2 and that of MMP-2-TIMP-2 complex are lower in squamous cervical carcinoma patients than in healthy women.