Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy

Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy. The present in vivo and in vitro experiments were performed to test the hypothesis that in rats with glomerular proteinuria, the bioactive growth factors transforming growth factor-β (T...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Kidney international 2000-03, Vol.57 (3), p.1002-1014
Hauptverfasser: Wang, Shi-Nong, Lapage, Janine, Hirschberg, Raimund
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 1014
container_issue 3
container_start_page 1002
container_title Kidney international
container_volume 57
creator Wang, Shi-Nong
Lapage, Janine
Hirschberg, Raimund
description Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy. The present in vivo and in vitro experiments were performed to test the hypothesis that in rats with glomerular proteinuria, the bioactive growth factors transforming growth factor-β (TGF-β) and hepatocyte growth factor (HGF) are ultrafiltered into tubular fluid, can interact with respective receptors in apical tubular cell membranes, increase the expression and basolateral secretion of C-C-chemokines, which interact with cells in the renal interstitium and indirectly cause myofibroblasts to increase the expression of extracellular matrix proteins. HGF and TGF-β were measured by Western blot and bioassay in glomerular ultrafiltrate that was collected by nephron micropuncture from rats with diabetic nephropathy and control rats. Proximal tubular and collecting duct cells were incubated with diluted proximal tubular fluid or recombinant human HGF (rhHGF) or rhTGF-β and expression of C-C-chemokines was measured by RT-PCR and ELISA. Interactions of tubular cell chemokines with macrophages and indirectly with myofibroblasts were also examined using cell culture models. In rats with glomerular proteinuria due to diabetic nephropathy mature, bioactive HGF as well as active and latent TGF-β were detected in early proximal tubular fluid. Specific HGF-and TGF-β type II receptors were expressed in apical tubular membranes more in diabetic compared to control rats. Incubation of cultured mouse proximal tubular cells (mPTC) or medullary collecting duct cells (mIMCD-3) with diabetic rat proximal tubular fluid increased MCP-1 and RANTES mRNA levels as well as secreted peptide up to threefold. In contrast, high glucose (450 mg/dL), bovine serum albumin (BSA) or rat albumin (each at 100 μg/mL) or 10 nmol/L insulin-like growth factor-I (IGF-I; which was also present in glomerular ultrafiltrate in rats with diabetic nephropathy) did not affect expression of these chemokines. Recombinant human TGF-β as well as rhHGF each increased MCP-1 and RANTES mRNA as well as peptide levels several-fold. In cultured macrophages MCP-1 raised the secretion of TGF-β, which in turn increased the expression of collagen type I and III as well as fibronectin in renal interstitial myofibroblasts about 2.5 to 4-fold. Proteinuria-induced progressive renal interstitial fibrosis may be caused by glomerular ultrafiltration of high molecular weight bioactive growth factors, HGF and TGF-β,
doi_str_mv 10.1046/j.1523-1755.2000.00928.x
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_70990557</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0085253815468322</els_id><sourcerecordid>980860981</sourcerecordid><originalsourceid>FETCH-LOGICAL-c542t-89a35620016b972b0485b94c6fb8b8fc6bd651303d187550871f622d4770c0eb3</originalsourceid><addsrcrecordid>eNqFkU-LFDEQxYMo7rj6FaQR8dZtJd3pTh918R8sCKLnkKQrOxkyndkkve5-e9Mzg4oXLylC_aqo9x4hFYWGQte_3TWUs7amA-cNA4AGYGSiuX9ENr8bj8kGQPCa8VZckGcp7QooxhaekgsKA4ORtxty-y14rIKtbnzYY1y8itXic1TWrW92YT52Y_iZt5VVJoeYKjdXhxhuIqbk7rB8M8aUXXbKV9bpGJI7QpNTGrMz1YyHbQwHlbcPz8kTq3zCF-d6SX58_PD96nN9_fXTl6t317XhHcu1GFXL-yKO9nocmIZOcD12prdaaGFNr6ee0xbaiYqiFsRAbc_Y1A0DGEDdXpI3p73l0tsFU5Z7lwx6r2YMS5IDjCNwPhTw1T_gLixxLrdJRoGC6HhbIHGCTBGXIlp5iG6v4oOkINdM5E6u1svVerlmIo-ZyPsy-vK8f9F7nP4aPIVQgNdnQCWjvI1qNi794ZhgYmQFe3_CsLh25zDKZBzOBicX0WQ5Bff_Y34BzAKrVA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>210108453</pqid></control><display><type>article</type><title>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy</title><source>MEDLINE</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Alma/SFX Local Collection</source><creator>Wang, Shi-Nong ; Lapage, Janine ; Hirschberg, Raimund</creator><creatorcontrib>Wang, Shi-Nong ; Lapage, Janine ; Hirschberg, Raimund</creatorcontrib><description>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy. The present in vivo and in vitro experiments were performed to test the hypothesis that in rats with glomerular proteinuria, the bioactive growth factors transforming growth factor-β (TGF-β) and hepatocyte growth factor (HGF) are ultrafiltered into tubular fluid, can interact with respective receptors in apical tubular cell membranes, increase the expression and basolateral secretion of C-C-chemokines, which interact with cells in the renal interstitium and indirectly cause myofibroblasts to increase the expression of extracellular matrix proteins. HGF and TGF-β were measured by Western blot and bioassay in glomerular ultrafiltrate that was collected by nephron micropuncture from rats with diabetic nephropathy and control rats. Proximal tubular and collecting duct cells were incubated with diluted proximal tubular fluid or recombinant human HGF (rhHGF) or rhTGF-β and expression of C-C-chemokines was measured by RT-PCR and ELISA. Interactions of tubular cell chemokines with macrophages and indirectly with myofibroblasts were also examined using cell culture models. In rats with glomerular proteinuria due to diabetic nephropathy mature, bioactive HGF as well as active and latent TGF-β were detected in early proximal tubular fluid. Specific HGF-and TGF-β type II receptors were expressed in apical tubular membranes more in diabetic compared to control rats. Incubation of cultured mouse proximal tubular cells (mPTC) or medullary collecting duct cells (mIMCD-3) with diabetic rat proximal tubular fluid increased MCP-1 and RANTES mRNA levels as well as secreted peptide up to threefold. In contrast, high glucose (450 mg/dL), bovine serum albumin (BSA) or rat albumin (each at 100 μg/mL) or 10 nmol/L insulin-like growth factor-I (IGF-I; which was also present in glomerular ultrafiltrate in rats with diabetic nephropathy) did not affect expression of these chemokines. Recombinant human TGF-β as well as rhHGF each increased MCP-1 and RANTES mRNA as well as peptide levels several-fold. In cultured macrophages MCP-1 raised the secretion of TGF-β, which in turn increased the expression of collagen type I and III as well as fibronectin in renal interstitial myofibroblasts about 2.5 to 4-fold. Proteinuria-induced progressive renal interstitial fibrosis may be caused by glomerular ultrafiltration of high molecular weight bioactive growth factors, HGF and TGF-β, which “activate” tubular cells through apical membranes. These apical signals are translated into basolateral events that are recognized by cells in the interstitium, such as the basolateral secretion of the C-C-chemokines MCP-1 and RANTES, which may (via macrophages) stimulate interstitial myofibroblasts, and thus lead to accumulation of extracellular matrix proteins and progressive interstitial fibrosis.</description><identifier>ISSN: 0085-2538</identifier><identifier>EISSN: 1523-1755</identifier><identifier>DOI: 10.1046/j.1523-1755.2000.00928.x</identifier><identifier>PMID: 10720953</identifier><identifier>CODEN: KDYIA5</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Animals ; Associated diseases and complications ; Biological and medical sciences ; Body Fluids - metabolism ; Chemokine CCL2 - metabolism ; Chemokine CCL5 - metabolism ; Diabetes. Impaired glucose tolerance ; Diabetic Nephropathies - metabolism ; Diabetic Nephropathies - pathology ; diabetic nephropathy ; Disease Progression ; Endocrine pancreas. Apud cells (diseases) ; Endocrinopathies ; Extracellular Matrix Proteins - metabolism ; fibronectin ; Fibrosis - metabolism ; Glomerulonephritis ; hepatocyte growth factor ; Hepatocyte Growth Factor - metabolism ; Humans ; Kidney - cytology ; Kidney - metabolism ; Kidney Glomerulus - metabolism ; Kidney Tubules, Proximal - metabolism ; MCP-1 ; Medical sciences ; Mice ; Nephrology. Urinary tract diseases ; Nephropathies. Renovascular diseases. Renal failure ; proteinuria ; Proto-Oncogene Proteins c-met - metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, Transforming Growth Factor beta - metabolism ; TGF-β ; Transforming Growth Factor beta - metabolism</subject><ispartof>Kidney international, 2000-03, Vol.57 (3), p.1002-1014</ispartof><rights>2000 International Society of Nephrology</rights><rights>2000 INIST-CNRS</rights><rights>Copyright Nature Publishing Group Mar 2000</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c542t-89a35620016b972b0485b94c6fb8b8fc6bd651303d187550871f622d4770c0eb3</citedby><cites>FETCH-LOGICAL-c542t-89a35620016b972b0485b94c6fb8b8fc6bd651303d187550871f622d4770c0eb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,310,314,776,780,785,786,23909,23910,25118,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=1282892$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/10720953$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Shi-Nong</creatorcontrib><creatorcontrib>Lapage, Janine</creatorcontrib><creatorcontrib>Hirschberg, Raimund</creatorcontrib><title>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy</title><title>Kidney international</title><addtitle>Kidney Int</addtitle><description>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy. The present in vivo and in vitro experiments were performed to test the hypothesis that in rats with glomerular proteinuria, the bioactive growth factors transforming growth factor-β (TGF-β) and hepatocyte growth factor (HGF) are ultrafiltered into tubular fluid, can interact with respective receptors in apical tubular cell membranes, increase the expression and basolateral secretion of C-C-chemokines, which interact with cells in the renal interstitium and indirectly cause myofibroblasts to increase the expression of extracellular matrix proteins. HGF and TGF-β were measured by Western blot and bioassay in glomerular ultrafiltrate that was collected by nephron micropuncture from rats with diabetic nephropathy and control rats. Proximal tubular and collecting duct cells were incubated with diluted proximal tubular fluid or recombinant human HGF (rhHGF) or rhTGF-β and expression of C-C-chemokines was measured by RT-PCR and ELISA. Interactions of tubular cell chemokines with macrophages and indirectly with myofibroblasts were also examined using cell culture models. In rats with glomerular proteinuria due to diabetic nephropathy mature, bioactive HGF as well as active and latent TGF-β were detected in early proximal tubular fluid. Specific HGF-and TGF-β type II receptors were expressed in apical tubular membranes more in diabetic compared to control rats. Incubation of cultured mouse proximal tubular cells (mPTC) or medullary collecting duct cells (mIMCD-3) with diabetic rat proximal tubular fluid increased MCP-1 and RANTES mRNA levels as well as secreted peptide up to threefold. In contrast, high glucose (450 mg/dL), bovine serum albumin (BSA) or rat albumin (each at 100 μg/mL) or 10 nmol/L insulin-like growth factor-I (IGF-I; which was also present in glomerular ultrafiltrate in rats with diabetic nephropathy) did not affect expression of these chemokines. Recombinant human TGF-β as well as rhHGF each increased MCP-1 and RANTES mRNA as well as peptide levels several-fold. In cultured macrophages MCP-1 raised the secretion of TGF-β, which in turn increased the expression of collagen type I and III as well as fibronectin in renal interstitial myofibroblasts about 2.5 to 4-fold. Proteinuria-induced progressive renal interstitial fibrosis may be caused by glomerular ultrafiltration of high molecular weight bioactive growth factors, HGF and TGF-β, which “activate” tubular cells through apical membranes. These apical signals are translated into basolateral events that are recognized by cells in the interstitium, such as the basolateral secretion of the C-C-chemokines MCP-1 and RANTES, which may (via macrophages) stimulate interstitial myofibroblasts, and thus lead to accumulation of extracellular matrix proteins and progressive interstitial fibrosis.</description><subject>Animals</subject><subject>Associated diseases and complications</subject><subject>Biological and medical sciences</subject><subject>Body Fluids - metabolism</subject><subject>Chemokine CCL2 - metabolism</subject><subject>Chemokine CCL5 - metabolism</subject><subject>Diabetes. Impaired glucose tolerance</subject><subject>Diabetic Nephropathies - metabolism</subject><subject>Diabetic Nephropathies - pathology</subject><subject>diabetic nephropathy</subject><subject>Disease Progression</subject><subject>Endocrine pancreas. Apud cells (diseases)</subject><subject>Endocrinopathies</subject><subject>Extracellular Matrix Proteins - metabolism</subject><subject>fibronectin</subject><subject>Fibrosis - metabolism</subject><subject>Glomerulonephritis</subject><subject>hepatocyte growth factor</subject><subject>Hepatocyte Growth Factor - metabolism</subject><subject>Humans</subject><subject>Kidney - cytology</subject><subject>Kidney - metabolism</subject><subject>Kidney Glomerulus - metabolism</subject><subject>Kidney Tubules, Proximal - metabolism</subject><subject>MCP-1</subject><subject>Medical sciences</subject><subject>Mice</subject><subject>Nephrology. Urinary tract diseases</subject><subject>Nephropathies. Renovascular diseases. Renal failure</subject><subject>proteinuria</subject><subject>Proto-Oncogene Proteins c-met - metabolism</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Receptors, Transforming Growth Factor beta - metabolism</subject><subject>TGF-β</subject><subject>Transforming Growth Factor beta - metabolism</subject><issn>0085-2538</issn><issn>1523-1755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqFkU-LFDEQxYMo7rj6FaQR8dZtJd3pTh918R8sCKLnkKQrOxkyndkkve5-e9Mzg4oXLylC_aqo9x4hFYWGQte_3TWUs7amA-cNA4AGYGSiuX9ENr8bj8kGQPCa8VZckGcp7QooxhaekgsKA4ORtxty-y14rIKtbnzYY1y8itXic1TWrW92YT52Y_iZt5VVJoeYKjdXhxhuIqbk7rB8M8aUXXbKV9bpGJI7QpNTGrMz1YyHbQwHlbcPz8kTq3zCF-d6SX58_PD96nN9_fXTl6t317XhHcu1GFXL-yKO9nocmIZOcD12prdaaGFNr6ee0xbaiYqiFsRAbc_Y1A0DGEDdXpI3p73l0tsFU5Z7lwx6r2YMS5IDjCNwPhTw1T_gLixxLrdJRoGC6HhbIHGCTBGXIlp5iG6v4oOkINdM5E6u1svVerlmIo-ZyPsy-vK8f9F7nP4aPIVQgNdnQCWjvI1qNi794ZhgYmQFe3_CsLh25zDKZBzOBicX0WQ5Bff_Y34BzAKrVA</recordid><startdate>20000301</startdate><enddate>20000301</enddate><creator>Wang, Shi-Nong</creator><creator>Lapage, Janine</creator><creator>Hirschberg, Raimund</creator><general>Elsevier Inc</general><general>Nature Publishing</general><general>Elsevier Limited</general><scope>6I.</scope><scope>AAFTH</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PJZUB</scope><scope>PKEHL</scope><scope>PPXIY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope></search><sort><creationdate>20000301</creationdate><title>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy</title><author>Wang, Shi-Nong ; Lapage, Janine ; Hirschberg, Raimund</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c542t-89a35620016b972b0485b94c6fb8b8fc6bd651303d187550871f622d4770c0eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Animals</topic><topic>Associated diseases and complications</topic><topic>Biological and medical sciences</topic><topic>Body Fluids - metabolism</topic><topic>Chemokine CCL2 - metabolism</topic><topic>Chemokine CCL5 - metabolism</topic><topic>Diabetes. Impaired glucose tolerance</topic><topic>Diabetic Nephropathies - metabolism</topic><topic>Diabetic Nephropathies - pathology</topic><topic>diabetic nephropathy</topic><topic>Disease Progression</topic><topic>Endocrine pancreas. Apud cells (diseases)</topic><topic>Endocrinopathies</topic><topic>Extracellular Matrix Proteins - metabolism</topic><topic>fibronectin</topic><topic>Fibrosis - metabolism</topic><topic>Glomerulonephritis</topic><topic>hepatocyte growth factor</topic><topic>Hepatocyte Growth Factor - metabolism</topic><topic>Humans</topic><topic>Kidney - cytology</topic><topic>Kidney - metabolism</topic><topic>Kidney Glomerulus - metabolism</topic><topic>Kidney Tubules, Proximal - metabolism</topic><topic>MCP-1</topic><topic>Medical sciences</topic><topic>Mice</topic><topic>Nephrology. Urinary tract diseases</topic><topic>Nephropathies. Renovascular diseases. Renal failure</topic><topic>proteinuria</topic><topic>Proto-Oncogene Proteins c-met - metabolism</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Receptors, Transforming Growth Factor beta - metabolism</topic><topic>TGF-β</topic><topic>Transforming Growth Factor beta - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Shi-Nong</creatorcontrib><creatorcontrib>Lapage, Janine</creatorcontrib><creatorcontrib>Hirschberg, Raimund</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest Health &amp; Medical Research Collection</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Health &amp; Nursing</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><jtitle>Kidney international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Shi-Nong</au><au>Lapage, Janine</au><au>Hirschberg, Raimund</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy</atitle><jtitle>Kidney international</jtitle><addtitle>Kidney Int</addtitle><date>2000-03-01</date><risdate>2000</risdate><volume>57</volume><issue>3</issue><spage>1002</spage><epage>1014</epage><pages>1002-1014</pages><issn>0085-2538</issn><eissn>1523-1755</eissn><coden>KDYIA5</coden><abstract>Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy. The present in vivo and in vitro experiments were performed to test the hypothesis that in rats with glomerular proteinuria, the bioactive growth factors transforming growth factor-β (TGF-β) and hepatocyte growth factor (HGF) are ultrafiltered into tubular fluid, can interact with respective receptors in apical tubular cell membranes, increase the expression and basolateral secretion of C-C-chemokines, which interact with cells in the renal interstitium and indirectly cause myofibroblasts to increase the expression of extracellular matrix proteins. HGF and TGF-β were measured by Western blot and bioassay in glomerular ultrafiltrate that was collected by nephron micropuncture from rats with diabetic nephropathy and control rats. Proximal tubular and collecting duct cells were incubated with diluted proximal tubular fluid or recombinant human HGF (rhHGF) or rhTGF-β and expression of C-C-chemokines was measured by RT-PCR and ELISA. Interactions of tubular cell chemokines with macrophages and indirectly with myofibroblasts were also examined using cell culture models. In rats with glomerular proteinuria due to diabetic nephropathy mature, bioactive HGF as well as active and latent TGF-β were detected in early proximal tubular fluid. Specific HGF-and TGF-β type II receptors were expressed in apical tubular membranes more in diabetic compared to control rats. Incubation of cultured mouse proximal tubular cells (mPTC) or medullary collecting duct cells (mIMCD-3) with diabetic rat proximal tubular fluid increased MCP-1 and RANTES mRNA levels as well as secreted peptide up to threefold. In contrast, high glucose (450 mg/dL), bovine serum albumin (BSA) or rat albumin (each at 100 μg/mL) or 10 nmol/L insulin-like growth factor-I (IGF-I; which was also present in glomerular ultrafiltrate in rats with diabetic nephropathy) did not affect expression of these chemokines. Recombinant human TGF-β as well as rhHGF each increased MCP-1 and RANTES mRNA as well as peptide levels several-fold. In cultured macrophages MCP-1 raised the secretion of TGF-β, which in turn increased the expression of collagen type I and III as well as fibronectin in renal interstitial myofibroblasts about 2.5 to 4-fold. Proteinuria-induced progressive renal interstitial fibrosis may be caused by glomerular ultrafiltration of high molecular weight bioactive growth factors, HGF and TGF-β, which “activate” tubular cells through apical membranes. These apical signals are translated into basolateral events that are recognized by cells in the interstitium, such as the basolateral secretion of the C-C-chemokines MCP-1 and RANTES, which may (via macrophages) stimulate interstitial myofibroblasts, and thus lead to accumulation of extracellular matrix proteins and progressive interstitial fibrosis.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>10720953</pmid><doi>10.1046/j.1523-1755.2000.00928.x</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0085-2538
ispartof Kidney international, 2000-03, Vol.57 (3), p.1002-1014
issn 0085-2538
1523-1755
language eng
recordid cdi_proquest_miscellaneous_70990557
source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection
subjects Animals
Associated diseases and complications
Biological and medical sciences
Body Fluids - metabolism
Chemokine CCL2 - metabolism
Chemokine CCL5 - metabolism
Diabetes. Impaired glucose tolerance
Diabetic Nephropathies - metabolism
Diabetic Nephropathies - pathology
diabetic nephropathy
Disease Progression
Endocrine pancreas. Apud cells (diseases)
Endocrinopathies
Extracellular Matrix Proteins - metabolism
fibronectin
Fibrosis - metabolism
Glomerulonephritis
hepatocyte growth factor
Hepatocyte Growth Factor - metabolism
Humans
Kidney - cytology
Kidney - metabolism
Kidney Glomerulus - metabolism
Kidney Tubules, Proximal - metabolism
MCP-1
Medical sciences
Mice
Nephrology. Urinary tract diseases
Nephropathies. Renovascular diseases. Renal failure
proteinuria
Proto-Oncogene Proteins c-met - metabolism
Rats
Rats, Sprague-Dawley
Receptors, Transforming Growth Factor beta - metabolism
TGF-β
Transforming Growth Factor beta - metabolism
title Role of glomerular ultrafiltration of growth factors in progressive interstitial fibrosis in diabetic nephropathy
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-16T08%3A10%3A46IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Role%20of%20glomerular%20ultrafiltration%20of%20growth%20factors%20in%20progressive%20interstitial%20fibrosis%20in%20diabetic%20nephropathy&rft.jtitle=Kidney%20international&rft.au=Wang,%20Shi-Nong&rft.date=2000-03-01&rft.volume=57&rft.issue=3&rft.spage=1002&rft.epage=1014&rft.pages=1002-1014&rft.issn=0085-2538&rft.eissn=1523-1755&rft.coden=KDYIA5&rft_id=info:doi/10.1046/j.1523-1755.2000.00928.x&rft_dat=%3Cproquest_cross%3E980860981%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=210108453&rft_id=info:pmid/10720953&rft_els_id=S0085253815468322&rfr_iscdi=true