title: [Effects of matrine on the expression of NKG2D ligands in leukemia cells].
abstract: This study was aimed to analyze the expression of NKG2D ligands in human leukemic cells and to investigate the effects of matrine on NKG2D ligand expression. The expressions of NKG2D ligand MICA/B, ULBP1-3 in several human leukemia cell lines (K562, OUN-1, U937 and K562/AO2), as well as primary leukemic cells isolated from malignant leukemia patients were analyzed by flow cytometry. After treatment with different doses of matrine, the expression level of NKG2D ligands in these leukemic cells was detected by FCM. The results indicated that NKG2D ligand expression was detected in both the leukemia cell lines and primary malignant leukemic cells. Generally, the expression of ULBP was high or obviously higher than that of MICA/B in leukemia cell lines and primary leukemic cells. The expression pattern of NKG2D ligands was different among these cells, possibly due to the different types of leukemia. Not all the expression of NKG2D ligands was upregulated after matrine treatment. Much higher expressions of ULBP2 and ULBP3 were found in K562 cells, compared to the other cell lines, which partly contributes to the higher sensitivity of K562 cells to NK cytotoxicity as target cells. It is concluded that there is universal expression of NKG2D ligand in leukemia cells. The high ULBP expression is prevalent in human leukemia cells. Matrine has the potential to induce the expression of NKG2D ligands in leukemia cells.
authors.affiliation: Lab Center, Changzhou No.2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China. E-mail: lingdima@gmail.com.
authors.forename: Ling-Di
authors.initials: LD
authors.lastname: Ma
authors.affiliation: Department of Hematology, Changzhou No.2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China.
authors.forename: Xu-Zhang
authors.initials: XZ
authors.lastname: Lu
authors.affiliation: Lab Center, Changzhou No.2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China.
authors.forename: Zhi-Chao
authors.initials: ZC
authors.lastname: Zhu
authors.affiliation: Lab Center, Changzhou No.2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China.
authors.forename: Li-Jia
authors.initials: LJ
authors.lastname: Jiang
authors.affiliation: Department of Hematology, Changzhou No.2 People's Hospital, The Affiliated Hospital of Nanjing Medical University, Changzhou 213000, Jiangsu Province, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.affiliation: Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China.
authors.forename: Si-Xuan
authors.initials: SX
authors.lastname: Qian
authors.affiliation: Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China. E-mail: lijianyonglm@medmail.com.cn.
authors.forename: Jian-Yong
authors.initials: JY
authors.lastname: Li
mesh_terms: D000470:Alkaloids / Q000494:pharmacology*; D045744:Cell Line, Tumor; D058851:GPI-Linked Proteins / Q000378:metabolism; D015973:Gene Expression Regulation, Leukemic; D015395:Histocompatibility Antigens Class I / Q000378:metabolism; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000378:metabolism*; D020014:K562 Cells; D055655:NK Cell Lectin-Like Receptor Subfamily K / Q000378:metabolism*; D011807:Quinolizines / Q000494:pharmacology*; D014407:Tumor Cells, Cultured; D000093842:Matrines
chemical_list: D000470:Alkaloids; D058851:GPI-Linked Proteins; D015395:Histocompatibility Antigens Class I; D036341:Intercellular Signaling Peptides and Proteins; C099187:MHC class I-related chain A; C098080:MICB antigen; D055655:NK Cell Lectin-Like Receptor Subfamily K; D011807:Quinolizines; C423230:ULBP2 protein, human; C423229:ULBP3 protein, human; D000093842:Matrines