Ultrastructural localization of three major basement membrane components: Type iv collagen, heparan sulfate proteoglycan and laminin in the normal human GBM

Toshinori Haramoto, Hirofumi Makino

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Abstract

Human glomerular basement membrane (GBM) is known to contain type IV collagen, heparan sulfate proteoglycan (HS-PG) and laminin in the extracellular matrix. in this study, ultrastructural distribution of these antigens was investigated in normal human glomeruli using the immunogold technique. Type IV collagen was present throughout the GBM, mainly on the lamina densa, and all over the mesangial region. HS-PG was present on the laminae rarae, predominantly on the lamina rara externa, and periphery of the mesangial region. Laminin was present throughout the GBM and peripheral region of the mesangial matrix. Our study demonstrated the preferential localization of each component in the GBM.

Original languageEnglish
Pages (from-to)933-939
Number of pages7
JournalThe Japanese Journal of Nephrology
Volume35
Issue number8
DOIs
Publication statusPublished - Jan 1 1993

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Heparan Sulfate Proteoglycans
Glomerular Basement Membrane
Laminin
Basement Membrane
Collagen
Collagen Type IV
Extracellular Matrix
Immunohistochemistry
Antigens

Keywords

  • glomerular basement membrane
  • heparan sulfate proteoglycan
  • immunoelectron microscopy
  • laminin
  • type IV collagen

ASJC Scopus subject areas

  • Nephrology

Cite this

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abstract = "Human glomerular basement membrane (GBM) is known to contain type IV collagen, heparan sulfate proteoglycan (HS-PG) and laminin in the extracellular matrix. in this study, ultrastructural distribution of these antigens was investigated in normal human glomeruli using the immunogold technique. Type IV collagen was present throughout the GBM, mainly on the lamina densa, and all over the mesangial region. HS-PG was present on the laminae rarae, predominantly on the lamina rara externa, and periphery of the mesangial region. Laminin was present throughout the GBM and peripheral region of the mesangial matrix. Our study demonstrated the preferential localization of each component in the GBM.",
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