Kiyonari Kato1, Tomoki Kosugi1, Waichi Sato2, Hanayo Arata-Kawai1, Takenori Ozaki1, Naotake Tsuboi1, Isao Ito1, Hideo Tawada3, Yukio Yuzawa1, Seiichi Matsuo1, Kenji Kadomatsu4, Shoichi Maruyama1. 1. Division of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, Aichi, 466-8550, Japan. 2. Division of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, Aichi, 466-8550, Japan. waichi@med.nagoya-u.ac.jp. 3. Tawada Clinic, 2-15-23 Kaminagoya Nishi-ku, Nagoya, Aichi, 451-0025, Japan. 4. Division of Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
Abstract
BACKGROUND: Growth factor Midkine (MK), which expresses on endothelial cells and renal proximal tubules, has been implicated in inflammation-related kidney diseases such as ischemic reperfusion-induced tubulointerstitial injury and diabetic nephropathy. The biological actions of MK are elicited through its chemotactic activity and chemokine-driven inflammatory pathway. Post-infectious glomerulonephritis is caused by the deposition of immune complexes into glomeruli by infiltrating a number of inflammatory cells. Therefore, we investigated whether MK might be involved in the pathogenesis of acute glomerulonephritis. METHODS: We induced endocapillary proliferative glomerulonephritis in 129/SV mice using intraperitoneal injections of a large amount of protein. RESULTS: In contrast to mice deficient in MK (Mdk (-/-)), Mdk (+/+) mice induced by protein overload demonstrated more diffuse cellular proliferation in the mesangial areas and capillary lumens, eventually leading to glomerular damage and tubulointerstitial injury. This pathological observation could be attributable to neutrophil infiltration through the chemotaxis and stimulation of the MK-macrophage inflammatory protein (MIP)-2 pathway, but appeared to be due to the MK-related immunoglobulin (Ig)G deposition and C3 activation. These findings are often seen in infectious-related glomerular injury. Furthermore, the profile of MK expression was strongly consistent with that of glomerular damage and tubulointersititial injury. CONCLUSION: This study might provide a new insight into understanding the deleterious role of MK in endocapillary proliferative glomerulonephritis induced by protein overload.
BACKGROUND: Growth factor Midkine (MK), which expresses on endothelial cells and renal proximal tubules, has been implicated in inflammation-related kidney diseases such as ischemic reperfusion-induced tubulointerstitial injury and diabetic nephropathy. The biological actions of MK are elicited through its chemotactic activity and chemokine-driven inflammatory pathway. Post-infectious glomerulonephritis is caused by the deposition of immune complexes into glomeruli by infiltrating a number of inflammatory cells. Therefore, we investigated whether MK might be involved in the pathogenesis of acute glomerulonephritis. METHODS: We induced endocapillary proliferative glomerulonephritis in 129/SVmice using intraperitoneal injections of a large amount of protein. RESULTS: In contrast to mice deficient in MK (Mdk (-/-)), Mdk (+/+) mice induced by protein overload demonstrated more diffuse cellular proliferation in the mesangial areas and capillary lumens, eventually leading to glomerular damage and tubulointerstitial injury. This pathological observation could be attributable to neutrophil infiltration through the chemotaxis and stimulation of the MK-macrophage inflammatory protein (MIP)-2 pathway, but appeared to be due to the MK-related immunoglobulin (Ig)G deposition and C3 activation. These findings are often seen in infectious-related glomerular injury. Furthermore, the profile of MK expression was strongly consistent with that of glomerular damage and tubulointersititial injury. CONCLUSION: This study might provide a new insight into understanding the deleterious role of MK in endocapillary proliferative glomerulonephritis induced by protein overload.
Authors: E Nakamura; K Kadomatsu; S Yuasa; H Muramatsu; T Mamiya; T Nabeshima; Q W Fan; K Ishiguro; T Igakura; S Matsubara; T Kaname; M Horiba; H Saito; T Muramatsu Journal: Genes Cells Date: 1998-12 Impact factor: 1.891
Authors: Jeffrey W Pippin; Paul T Brinkkoetter; Fionnualla C Cormack-Aboud; Raghu V Durvasula; Peter V Hauser; Jolanta Kowalewska; Ronald D Krofft; Christine M Logar; Caroline B Marshall; Takamoto Ohse; Stuart J Shankland Journal: Am J Physiol Renal Physiol Date: 2008-09-10
Authors: Jolanta Malyszko; Hanna Bachorzewska-Gajewska; Ewa Koc-Zorawska; Jacek S Malyszko; Grazyna Kobus; Slawomir Dobrzycki Journal: Biomed Res Int Date: 2015-01-05 Impact factor: 3.411