Attributes of antiangiogenic factor plasminogen kringle 5 in glomerulonephritis

Jin Shuen Chen, Jyh Chang Hwang, Li Chien Chang, Chia Chao Wu, Yuh Feng Lin

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Context: Plasminogen kringle domain (K) 5 is known to inhibit endothelial cell growth, but limited data are available investigating the relationship between K5 and glomerulonephritis (GN). Objective: To understand the relationships among K5, GN, and glomerular endothelial cells in GN mice models and human subjects. Design: Two mice models of GN and 2 categories of human GN biopsy samples were collected to gain insight into the disease mechanism from the laboratory to bedside. In the mechanistic animal study, membranous nephropathy (MN) and focal segmental glomerulosclerosis mice models were used. Kringle domain 5 in the diseased kidney was located by immunofluorescence and quantified by Western blotting. In the kinetic animal study, different MN time points were stained with K5, immunoglobulin G, and C3 by immunofluorescence. CD31 and proliferating cell nuclear antigen were evaluated by immunohistochemical double staining for alterations in the glomerular endothelial cells. Biopsy samples from patients diagnosed with antibody (Ab)-mediated and non-Ab-mediated GN were collected for K5 analysis. Results: The expression level of K5 was found to be significant in MN, but not in focal segmental glomerulosclerosis, and was markedly elevated in the diseased glomeruli along the capillary walls. Kringle domain 5 levels increased steadily with the evolution of MN, appearing after the deposition of Abs. In altered glomerular endothelial cells, CD31 decreased with the evolution of MN. In human subjects, K5 occurred only in patients with Ab GN. Conclusions: Kringle domain 5 might be involved in the progression of Ab-mediated GN and associated with the alteration of MN glomerular endothelial cell growth.

Original languageEnglish
Pages (from-to)1804-1812
Number of pages9
JournalArchives of Pathology and Laboratory Medicine
Volume134
Issue number12
Publication statusPublished - Dec 2010

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Glomerulonephritis
Membranous Glomerulonephritis
Kringles
Endothelial Cells
Focal Segmental Glomerulosclerosis
Fluorescent Antibody Technique
Antibodies
Biopsy
plasminogen kringle 5
Plasminogen
Proliferating Cell Nuclear Antigen
Kidney Diseases
Growth
Immunoglobulin G
Western Blotting
Staining and Labeling

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Medical Laboratory Technology

Cite this

Attributes of antiangiogenic factor plasminogen kringle 5 in glomerulonephritis. / Chen, Jin Shuen; Hwang, Jyh Chang; Chang, Li Chien; Wu, Chia Chao; Lin, Yuh Feng.

In: Archives of Pathology and Laboratory Medicine, Vol. 134, No. 12, 12.2010, p. 1804-1812.

Research output: Contribution to journalArticle

Chen, Jin Shuen ; Hwang, Jyh Chang ; Chang, Li Chien ; Wu, Chia Chao ; Lin, Yuh Feng. / Attributes of antiangiogenic factor plasminogen kringle 5 in glomerulonephritis. In: Archives of Pathology and Laboratory Medicine. 2010 ; Vol. 134, No. 12. pp. 1804-1812.
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