Immunohistochemical study of NGF and its receptors in the synovial membrane of the ankle joint of adjuvant-induced arthritic rats

Hiro Take, Kengo Nagata, Tadahiko Iijima

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

To study the role of nerve growth factor (NGF) in local inflammation, we investigated the expression of NGF and its receptors, trkA and p75, in the ankle joints of adjuvant-induced arthritic rats. Infiltrated mononuclear cells revealed a positive immunoreactivity for NGF and trkA; they were also positive for immunostaining for W3/25 and ED1, which mainly stain T cells and macrophages, respectively. Changes in the ratios of NGF-positive cells to mononuclear cells showed a relatively similar pattern for trkA-positive cells, which peaked at weeks 2 to 3 after the adjuvant injection. In double-immunofluorescence staining, 80% and 65% of NGF-positive cells stained for W3/25 and ED1, respectively. Similarly, 67% and 80% of trkA-positive cells also corresponded to W3/25- and ED1-positive cells, respectively. However, p75 immunoreactivity localized on the nerve fibers but not on the cells of the ankle joints. Dense meshworks of p75-positive nerve fibers with numerous terminal varicosities were observed at weeks 2 to 4. The present findings suggest that infiltrated mononuclear cells may secrete NGF in an autocrine or paracrine manner in the inflamed synovium. An upregulation of NGF in these mononuclear cells and an increase in density of the synovial nerve fibers may be involved in the development of adjuvant arthritis in rats.

Original languageEnglish
Pages (from-to)453-459
Number of pages7
JournalHistochemistry and Cell Biology
Volume114
Issue number6
Publication statusPublished - Dec 1 2000

Fingerprint

Nerve Growth Factor Receptors
Experimental Arthritis
Ankle Joint
Synovial Membrane
nerves
rats
Rats
membranes
Membranes
Nerve Growth Factor
nerve fibers
Cells
cells
Nerve Fibers
Fibers
arthritis
macrophages
T-cells
Macrophages
staining

All Science Journal Classification (ASJC) codes

  • Cell Biology
  • Instrumentation

Cite this

@article{0323ff54e3cb4414941c8aefa2b2bad7,
title = "Immunohistochemical study of NGF and its receptors in the synovial membrane of the ankle joint of adjuvant-induced arthritic rats",
abstract = "To study the role of nerve growth factor (NGF) in local inflammation, we investigated the expression of NGF and its receptors, trkA and p75, in the ankle joints of adjuvant-induced arthritic rats. Infiltrated mononuclear cells revealed a positive immunoreactivity for NGF and trkA; they were also positive for immunostaining for W3/25 and ED1, which mainly stain T cells and macrophages, respectively. Changes in the ratios of NGF-positive cells to mononuclear cells showed a relatively similar pattern for trkA-positive cells, which peaked at weeks 2 to 3 after the adjuvant injection. In double-immunofluorescence staining, 80{\%} and 65{\%} of NGF-positive cells stained for W3/25 and ED1, respectively. Similarly, 67{\%} and 80{\%} of trkA-positive cells also corresponded to W3/25- and ED1-positive cells, respectively. However, p75 immunoreactivity localized on the nerve fibers but not on the cells of the ankle joints. Dense meshworks of p75-positive nerve fibers with numerous terminal varicosities were observed at weeks 2 to 4. The present findings suggest that infiltrated mononuclear cells may secrete NGF in an autocrine or paracrine manner in the inflamed synovium. An upregulation of NGF in these mononuclear cells and an increase in density of the synovial nerve fibers may be involved in the development of adjuvant arthritis in rats.",
author = "Hiro Take and Kengo Nagata and Tadahiko Iijima",
year = "2000",
month = "12",
day = "1",
language = "English",
volume = "114",
pages = "453--459",
journal = "Histochemistry and Cell Biology",
issn = "0948-6143",
publisher = "Springer Verlag",
number = "6",

}

TY - JOUR

T1 - Immunohistochemical study of NGF and its receptors in the synovial membrane of the ankle joint of adjuvant-induced arthritic rats

AU - Take, Hiro

AU - Nagata, Kengo

AU - Iijima, Tadahiko

PY - 2000/12/1

Y1 - 2000/12/1

N2 - To study the role of nerve growth factor (NGF) in local inflammation, we investigated the expression of NGF and its receptors, trkA and p75, in the ankle joints of adjuvant-induced arthritic rats. Infiltrated mononuclear cells revealed a positive immunoreactivity for NGF and trkA; they were also positive for immunostaining for W3/25 and ED1, which mainly stain T cells and macrophages, respectively. Changes in the ratios of NGF-positive cells to mononuclear cells showed a relatively similar pattern for trkA-positive cells, which peaked at weeks 2 to 3 after the adjuvant injection. In double-immunofluorescence staining, 80% and 65% of NGF-positive cells stained for W3/25 and ED1, respectively. Similarly, 67% and 80% of trkA-positive cells also corresponded to W3/25- and ED1-positive cells, respectively. However, p75 immunoreactivity localized on the nerve fibers but not on the cells of the ankle joints. Dense meshworks of p75-positive nerve fibers with numerous terminal varicosities were observed at weeks 2 to 4. The present findings suggest that infiltrated mononuclear cells may secrete NGF in an autocrine or paracrine manner in the inflamed synovium. An upregulation of NGF in these mononuclear cells and an increase in density of the synovial nerve fibers may be involved in the development of adjuvant arthritis in rats.

AB - To study the role of nerve growth factor (NGF) in local inflammation, we investigated the expression of NGF and its receptors, trkA and p75, in the ankle joints of adjuvant-induced arthritic rats. Infiltrated mononuclear cells revealed a positive immunoreactivity for NGF and trkA; they were also positive for immunostaining for W3/25 and ED1, which mainly stain T cells and macrophages, respectively. Changes in the ratios of NGF-positive cells to mononuclear cells showed a relatively similar pattern for trkA-positive cells, which peaked at weeks 2 to 3 after the adjuvant injection. In double-immunofluorescence staining, 80% and 65% of NGF-positive cells stained for W3/25 and ED1, respectively. Similarly, 67% and 80% of trkA-positive cells also corresponded to W3/25- and ED1-positive cells, respectively. However, p75 immunoreactivity localized on the nerve fibers but not on the cells of the ankle joints. Dense meshworks of p75-positive nerve fibers with numerous terminal varicosities were observed at weeks 2 to 4. The present findings suggest that infiltrated mononuclear cells may secrete NGF in an autocrine or paracrine manner in the inflamed synovium. An upregulation of NGF in these mononuclear cells and an increase in density of the synovial nerve fibers may be involved in the development of adjuvant arthritis in rats.

UR - http://www.scopus.com/inward/record.url?scp=0034519862&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034519862&partnerID=8YFLogxK

M3 - Article

VL - 114

SP - 453

EP - 459

JO - Histochemistry and Cell Biology

JF - Histochemistry and Cell Biology

SN - 0948-6143

IS - 6

ER -