NDLI: PpGalNacT2 participating in vanadium-induced HL-60 cell differentiation

Content Provider	Springer Nature Link
Author	Gao, Yuan Tu, You Bin Guo, Yi Yang, Ling Yan Guo, Xiang Hong Xu, Lan Xu, Zheng Rong Wu, Shi Liang
Copyright Year	2010
Abstract	The current study demonstrates vanadium plays the role of antitumor, and its antitumor effect is dosage-dependent. N-acetyl-galactosamine-transferase 2 (polypeptide: N-acetyl-α-galactosaminyl-transferases 2, ppGalNAc-T2) is a member of ppGalNAcTs (polypeptide: N-acetyl-α-galactosaminyl-transferases) family, which proves to play a vital role in the tumor emergence and development process. In this study, we focused on ppGalNAc-T2 and vanadium and aimed to determine whether ppGalNAc-T2 is correlated with vanadium’s antitumor effect. We discovered that ppGalNAc-T2 changed with the variation of HL-60 cell growth induced by vanadium at mRNA level. Peanut agglutinin (PNA) is an exogenous lectin. PpGalNacT2 can be indirectly recognized by PNA. By means of flow cytometry and immunofluorescent staining, we found the deviation of PNA binding increased significantly at high concentration vanadium. Then we docked one of the possible compound substances of vanadium onto the body, VO$_{3}$ (molecular formula O$_{13}$V$_{4}$, partial vanadate tetramer) and ppGalNAcT2, and simulated them via molecular dynamics, which showed that VO$_{3}$ may inhibit the activity of the enzyme by stemming conformational changes of a key loop of ppGalNAcT2. To sum up, our results suggested that ppGalNacT2 participated in vanadium induced HL-60 cell differentiation, which might be able to provide a new mechanism of vanadium’s antitumor effect.
Starting Page	1483
Ending Page	1489
Page Count	7
File Format	PDF
ISSN	03014851
Journal	Molecular Biology Reports
Volume Number	38
Issue Number	3
e-ISSN	15734978
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-09-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polypeptide N-acetyl-galactosaminyl-transferase 2 (ppGalNac-T2) Vanadium PNA Leukemic cell Hl-60 Molecular dynamics Animal Biochemistry Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology

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