Vibration Induces BAFF Overexpression and Aberrant O-Glycosylation of IgA1 in Cultured Human Tonsillar Mononuclear Cells in IgA Nephropathy.
Objective. To investigate the influence ofin vitrovibratory stimulation of human tonsillar mononuclear cells (TMCs).Methods. Fourteen IgA nephropathy (IgAN) patients with chronic tonsillitis (CT) and 12 CT patients with no renal pathology were enrolled. Group A TMCs were collected after 24 hours of culture and used to determine baseline levels. TMCs in groups B, C, D, E, and F were exposed to vibratory stimulation (60 Hz) for 0 (as the control group), 1, 3, 5, and 10 minutes, respectively.Results. Baseline concentrations of B-cell-activation factor (BAFF) and IgA1, BAFF mRNA expression, and aberrant O-glycosylation IgA1 level were higher in the IgAN group as compared to that in the CT group, and all increased after vibratory stimulation. Baseline mRNA expressions of coreβ1,3-galactosyltransferase (C1GALT1) and coreβ1,3GalT-specific molecular chaperone (Cosmc) were lower in the IgAN group; the levels decreased further after vibratory stimulation.Conclusion. In patients with IgAN, vibratory stimulation of TMCs appears to induce IgA1 secretion through activation of BAFF release and to aberrant O-glycosylation IgA1 by suppressing C1GALT1 and Cosmc expression.In vitrovibratory stimulation of human TMCs mimics the vibratory simulation of palatine tonsils produced by vocal cords during phonation.
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Muyao
M
Ye
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Youming
0000-0003-0489-8324
Y
Peng
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Chan
C
Liu
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Wenzhe
W
Yan
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Xiaofei
X
Peng
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Liyu
L
He
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Hong
H
Liu
Nephrology Department, 2nd Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification, Changsha, Hunan 410011, China.
Fuyou
F
Liu
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