[Relationship between VEGF and MMP-2, MMP-9 in 82 patients with acute myeloid leukemia].
In order to investigate the relationship between VEGF and matrix metalloproteinase (MMP)-2, -9 in acute myeloid leukemia patients, and evaluate the significance of them in extramedullary leukemic invasion, the expressions of MMP-2 mRNA, MMP-9 mRNA, VEGF mRNA in bone marrow from 86 patients with acute myeloid leukemia (AML), as well as human hematopoietic cell lines were analyzed by reverse transcription-polymerase chain reaction (RT-PCR). The proteolytic activities of MMP-2 and MMP-9 in the supernatants were measured by zymography. The VEGF protein in serum of all samples was detected by ELISA. All these results were analyzed for determination of the relationship between VEGF and MMP-2, MMP-9. The results showed that there was a positive correlation between expressions of MMP-2 mRNA or MMP-9 mRNA and VEGF mRNA or protein. But no such correlation was demonstrated in the AML (CR) and normal control (NC) groups. A higher expression level of MMP-2 and MMP-9 in the VEGF positive group was found, as compared with the negative group (P < 0.05). More extramedullary infiltration occurred in VEGF positive groups than that in VEGF negative groups of AML. The expression of bcl-2 in HL-60 cells was upregulated by VEGF. It is concluded that there are significantly positive correlations between the expression of MMP-2 and MMP-9 with VEGF mRNA or protein levels in AML patients. VEGF can upregulate the expression of MMP-2, MMP-9 in HL-60 and a part of the primary leukemic cells. VEGF and MMP-2, MMP-9 may participate in the extramedullary leukemic invasion of AML patients.
Department of Hematology, The Second Hospital of Heibei Medical University, Shijiazhuang 050000, China.
Lin
L
Yang
Zuo-Ren
ZR
Dong
Shu-Peng
SP
Wen
Ling
L
Pan
Xue-Jun
XJ
Zhang
Jian-Min
JM
Luo
Shi-Rong
SR
Xu
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D018922:HL-60 Cells; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000378:metabolism* / Q000473:pathology; D017254:Leukemic Infiltration; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis* / Q000235:genetics; D020780:Matrix Metalloproteinase 9 / Q000096:biosynthesis* / Q000235:genetics; D008875:Middle Aged; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D042461:Vascular Endothelial Growth Factor A / Q000096:biosynthesis* / Q000235:genetics
D012333:RNA, Messenger; D042461:Vascular Endothelial Growth Factor A; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9