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PMID |
Sentence |
1 |
10806114
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The LIM and SH3 domain-containing protein, lasp-1, may link the cAMP signaling pathway with dynamic membrane restructuring activities in ion transporting epithelia.
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2 |
10806114
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Lasp-1 is a unique LIM and src homology 3 (SH3) domain-containing protein that was initially identified as a 40 kDa cAMP-dependent phosphoprotein in the HCl-secreting gastric parietal cell.
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3 |
10806114
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In addition, elevation of intracellular cAMP concentrations appear to induce a partial redistribution of lasp-1 from the cell cortex, where it predominates along with the gamma-isoform of actin in unstimulated cells, to the beta-actin enriched, apically-directed intracellular canalicular region, which is the site of active proton transport in the parietal cell.
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4 |
10806114
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The LIM and SH3 domain-containing protein, lasp-1, may link the cAMP signaling pathway with dynamic membrane restructuring activities in ion transporting epithelia.
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5 |
10806114
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Lasp-1 is a unique LIM and src homology 3 (SH3) domain-containing protein that was initially identified as a 40 kDa cAMP-dependent phosphoprotein in the HCl-secreting gastric parietal cell.
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6 |
10806114
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In addition, elevation of intracellular cAMP concentrations appear to induce a partial redistribution of lasp-1 from the cell cortex, where it predominates along with the gamma-isoform of actin in unstimulated cells, to the beta-actin enriched, apically-directed intracellular canalicular region, which is the site of active proton transport in the parietal cell.
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7 |
11956244
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LMX1B encodes a LIM-homeodomain transcription factor.
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8 |
11956244
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Using antibodies to podocyte proteins important for podocyte function, we found that Lmx1b(-/-) podocytes express near-normal levels of nephrin, synaptopodin, ZO-1, alpha3 integrin, and GBM laminins.
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9 |
11956244
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However, mRNA and protein levels for CD2AP and podocin were greatly reduced, suggesting a cooperative role for these molecules in foot process and slit diaphragm formation.
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10 |
11956244
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We identified several LMX1B binding sites in the putative regulatory regions of both CD2AP and NPHS2 (podocin) and demonstrated that LMX1B binds to these sequences in vitro and can activate transcription through them in cotransfection assays.
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11 |
11956245
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The LIM-homeodomain transcription factor Lmx1b plays a crucial role in podocytes.
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12 |
11956245
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Expression of the alpha4 chain of collagen IV and of podocin was also severely reduced.
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13 |
11956245
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Using gel shift assays, we demonstrated that LMX1B bound to two AT-rich sequences in the promoter region of NPHS2, the gene encoding podocin.
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14 |
11956245
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Our results demonstrate that Lmx1b regulates important steps in glomerular development and establish a link between three hereditary kidney diseases: nail-patella syndrome (Lmx1b), steroid-resistant nephrotic syndrome (podocin), and Alport syndrome (collagen IV alpha4).
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15 |
11978876
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Our studies of a skeletal malformation syndrome, nail-patella syndrome, have shown how the LIM homeodomain transcription factor, Lmx1b, contributes to transcriptional regulation of glomerular basement membrane collagen expression by podocytes.
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16 |
12819019
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NPS is inherited as an autosomal dominant trait and caused by heterozygous loss of function mutations in LMX1B, a member of the LIM homeodomain protein family.
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17 |
12819019
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Strong reduction in the glomerular expression of the alpha3 and alpha4 chains of type IV collagen, and of podocin and CD2AP, two podocyte proteins critical for glomerular function, has been observed in Lmx1b null mice.
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18 |
12819019
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The glomerular basement membrane fibrillar material was specifically labeled with anti-type III collagen antibodies, suggesting a possible regulation of type III collagen expression by LMX1B.
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19 |
12819019
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The expression of the alpha3 and alpha4 chains of type IV collagen, and of podocin and CD2AP, was found to be normal in the seven patients.
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20 |
12819019
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These findings indicate that heterozygous mutations of LMX1B do not appear to dramatically affect the expression of type IV collagen chains, podocin, or CD2AP in NPS patients.
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21 |
14736876
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A yeast two-hybrid assay identified a novel, WT1-interacting protein (WTIP) that maps to human chromosome 19q13.1, a region with genes linked to familial focal segmental glomerulosclerosis.
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22 |
14736876
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The domain structure of WTIP is similar to the zyxin subfamily of cytosolic LIM domain-containing proteins, which contain three carboxyl-terminal LIM protein-protein interaction domains and a proline-rich, pre-LIM region with a nuclear export signal.
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23 |
14736876
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Other LIM domain-containing proteins (zyxin and mouse muscle LIM protein) did not interact with WT1 in two-hybrid assays, and WTIP did not interact with an unrelated transcription factor, LMX1B.
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24 |
14736876
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The partial WTIP clone, which interacted with WTIP in the two-hybrid assay, co-localized with WT1 in nuclei, co-precipitated with WT1, and inhibited WT1-dependent transcriptional activation of the amphiregulin promoter.
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25 |
14736876
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Epitope-tagged WTIP co-localized with the adaptor protein CD2AP (CMS) in podocyte actin spots and with Mena at cell-cell junctions.
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26 |
14736876
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A yeast two-hybrid assay identified a novel, WT1-interacting protein (WTIP) that maps to human chromosome 19q13.1, a region with genes linked to familial focal segmental glomerulosclerosis.
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27 |
14736876
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The domain structure of WTIP is similar to the zyxin subfamily of cytosolic LIM domain-containing proteins, which contain three carboxyl-terminal LIM protein-protein interaction domains and a proline-rich, pre-LIM region with a nuclear export signal.
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28 |
14736876
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Other LIM domain-containing proteins (zyxin and mouse muscle LIM protein) did not interact with WT1 in two-hybrid assays, and WTIP did not interact with an unrelated transcription factor, LMX1B.
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29 |
14736876
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The partial WTIP clone, which interacted with WTIP in the two-hybrid assay, co-localized with WT1 in nuclei, co-precipitated with WT1, and inhibited WT1-dependent transcriptional activation of the amphiregulin promoter.
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30 |
14736876
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Epitope-tagged WTIP co-localized with the adaptor protein CD2AP (CMS) in podocyte actin spots and with Mena at cell-cell junctions.
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31 |
16314921
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Both alpha-parvin (PARVA) and beta-parvin (PARVB) localize to focal adhesions and function in cell adhesion, spreading, motility and survival through interactions with partners, such as integrin-linked kinase (ILK), paxillin, alpha-actinin and testicular kinase 1.
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32 |
16314921
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A complex of PARVA with ILK and the LIM protein PINCH-1 is critical for cell survival in a variety of cells, including certain cancer cells, kidney podocytes and cardiac myocytes.
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33 |
16314921
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While PARVA inhibits the activities of Rac1 and testicular kinase 1 and cell spreading, PARVB binds alphaPIX and alpha-actinin, and can promote cell spreading.
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34 |
16314921
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In contrast to PARVA, PARVB inhibits ILK activity and reverses some of its oncogenic effects in cancer cells.
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35 |
17466922
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In this review, the role of Wilms tumor 1 (WT1), LIM homeobox transcription factor 1, beta (Lmx1b), pod1, pax-2, kreisler, nuclear factor-kappa B (NF-kappaB), smad7, and zinc fingers and homeoboxes (ZHX) proteins in the development of podocyte disease is outlined.
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36 |
17570941
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In the kidney, the LIM homeodomain transcription factor LMX1B is specifically synthesized in podocytes, and mutations in LMX1B lead to nail-patella syndrome and the associated nephropathy.
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37 |
17570941
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Other transcription factors such as hypoxia-inducible factors and PAX2 are likely to play a role in podocytes, whereas the significance of others, e.g. of POD1 and CITED2, is more speculative at this point.
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38 |
18253764
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These characteristic symptoms are caused by mutations in the gene encoding the transcription factor LMX1B, a member of the LIM-homeodomain gene family.
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39 |
18253764
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In contrast, however, podocin and the alpha3 and alpha4 chains of collagen IV are absent in the glomeruli of Lmx1b knockout mice.
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40 |
18535845
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Although LMX1B is a developmental LIM-homeodomain transcription factor, it is expressed in post-natal life in the glomerular podocyte, suggesting a regulatory role in that cell.
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41 |
18535845
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NPHS2, CD2AP), the transription of which is regulated by LMX1B.
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42 |
21686224
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Out on a LIM: chronic kidney disease, podocyte phenotype and the Wilm's tumor interacting protein (WTIP).
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43 |
21814175
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In an effort to discover novel regulatory proteins of the podocyte foot process, we identified and characterized pdlim2, a member of the actin-associated LIM protein subfamily of cytosolic proteins typified by an N-terminal PDZ domain and a C-terminal LIM domain.
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44 |
21814175
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Mechanistically, pdlim2 interacts with two actin-associated podocyte proteins, α-actinin-4 and angiomotin-like-1, as shown by immunoprecipitation and yeast two-hybrid analyses.
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45 |
21900451
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WT1-interacting protein (Wtip) regulates podocyte phenotype by cell-cell and cell-matrix contact reorganization.
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46 |
21900451
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Wt1-interacting protein (Wtip), an Ajuba family LIM domain scaffold protein expressed in the podocyte, coordinates cell adhesion changes and transcriptional responses to regulate podocyte phenotypic plasticity.
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47 |
21900451
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In shWtip cells, cadherin and β-catenin clustered in irregularly distributed spots that failed to laterally expand.
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48 |
21900451
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Cell surface biotinylation showed diminished plasma membrane cadherin, β-catenin, and α-catenin in shWtip podocytes, although protein expression was similar in shWtip and control cells.
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49 |
21900451
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WTIP directly interacted with Rho guanine nucleotide exchange factor (GEF) 12 (Arhgef12), a RhoA-specific GEF enriched in the glomerulus.
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50 |
21900451
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In conclusion, stable assembly of podocyte adherens junctions and cell-matrix contacts requires Wtip, a process that may be mediated by spatiotemporal regulation of RhoA activity through appropriate targeting of Arhgef12.
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51 |
23046462
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LMX1B, a developmental LIM-homeodomain transcription factor, is widely expressed in vertebrate embryos, and it takes part in the development of diverse structures such as limbs, kidneys, eyes, brains, etc.
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52 |
23046462
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LMX1B contributes to transcriptional regulation of glomerular basement membrane (GBM) collagen expression by podocytes.
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53 |
25855776
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Notably, four-and-a-half LIM domains protein 2 (FHL2) is highly expressed in urogenital systems and has been implicated in Wnt/β-catenin signaling.
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54 |
25855776
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Treatment with high glucose or diabetes-related cytokines, including angiotensin II and TGF-β1, activated FHL2 protein and Wnt/β-catenin signaling in cultured podocytes.
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55 |
25855776
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Genetic deletion of the FHL2 gene mitigated the podocyte dedifferentiation caused by activated Wnt/β-catenin signaling under Wnt-On, but not under Wnt-Off, conditions.
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56 |
25855776
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Therefore, we conclude that FHL2 has both structural and functional protein-protein interactions with β-catenin in the podocyte nucleus and that FHL2 protein inhibition can mitigate Wnt/β-catenin-induced podocytopathy.
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57 |
26385183
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Role of Asxl1 in kidney podocyte development via its interaction with Wtip.
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58 |
26385183
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Here, we identified a LIM domain-containing protein, Wilms tumor 1-interacting protein (WTIP), as an ASXL1-binding partner.
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59 |
26385183
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Biochemical assays confirmed an interaction between the murine homologs Asxl1 and Wtip.
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60 |
26385183
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The suppressive role of Wtip in WT1 function and the expression of Wtip in kidney podocytes prompted us to investigate the role of Asxl1 in the kidney using Asxl1-null mice.
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61 |
26385183
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Furthermore, up-regulation of Wt1/Wtip target genes was observed in the kidneys of Asxl1-null embryos.
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62 |
26385183
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Overall, these findings implicate Asxl1 in the maintenance of podocyte structure via its association with Wtip and in the regulation of WT1 signaling during early kidney development.
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63 |
28059119
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Mutations in the LIM homeobox transcription factor 1-beta (LMX1B) are a cause of nail patellar syndrome, a condition characterized by skeletal changes, glaucoma and focal segmental glomerulosclerosis.
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64 |
28059119
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In this study, using human podocyte cell lines overexpressing either myc-LMX1BWT or myc-LMX1BR246Q, we observed dominant negative and haploinsufficiency effects of the mutation on the expression of podocyte genes such as NPHS1, GLEPP1, and WT1.
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65 |
29138824
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However, FSGS does not result exclusively from podocyte‑associated genes, however also from other genes including collagen IV‑associated genes.
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66 |
29138824
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Patients who carry the collagen type IVA3 chain (COL4A3) or COL4A4 mutations usually exhibit Alport Syndrome (AS), thin basement membrane neuropathy or familial hematuria (FH).
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67 |
29138824
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Genomic DNA of the siblings affected by FH with biopsy‑proven FSGS was analyzed, and their father was screened for 18 gene mutations associated with FSGS [nephrin, podocin, CD2 associated protein, phospholipase C ε, actinin α 4, transient receptor potential cation channel subfamily C member 6, inverted formin, FH2 and WH2 domain containing, Wilms tumor 1, LIM homeobox transcription factor 1 β, laminin subunit β 2, laminin subunit β 3, galactosida α, integrin subunit β 4, scavenger receptor class B member 2, coenzyme Q2, decaprenyl diphosphate synthase subunit 2, mitochondrially encoded tRNA leucine 1 (UUA/G; TRNL1) and SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a like 1] using matrix‑assisted laser desorption/ionization time‑of‑flight mass spectrometry technology.
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68 |
29138824
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Using mass array technology, a TRNL1 missense homozygous mutation (m. 3290T>C) was identified in the probands diagnosed with FH and manifested as FSGS on biopsy.
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69 |
29138824
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In the present study, a mutation in TRNL1 (m. 3290T>C) was identified, which was the first reported variant associated with FSGS.
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70 |
29138824
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The COL4A4 (c. 4195A>T) may co‑segregate with FSGS.
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71 |
30115939
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ROK activates LIM kinases (LIMKs), which phosphorylate and inhibit the actin depolymerizing factor cofilin 1 (CFL1).
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72 |
30115939
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CFL1 is also phosphorylated by testis-specific kinase 1 (TESK1) on the same serine residue.
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73 |
30829647
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Cardiac LIM protein was a CA/CPR-specific filtrate component.
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74 |
30829647
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Cardiac arrest induced plasma release of cardiac LIM protein in mice and critically ill human cardiac arrest survivors, and administration of recombinant cardiac LIM protein to mice altered renal function.
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75 |
30829647
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Cardiac LIM protein was a CA/CPR-specific filtrate component.
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76 |
30829647
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Cardiac arrest induced plasma release of cardiac LIM protein in mice and critically ill human cardiac arrest survivors, and administration of recombinant cardiac LIM protein to mice altered renal function.
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77 |
31040292
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FHL2 mediates podocyte Rac1 activation and foot process effacement in hypertensive nephropathy.
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78 |
31040292
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Four-and-a-half LIM domains protein 2 (FHL2) is highly expressed in podocytes and has been implicated in regulating diverse biological functions.
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79 |
31040292
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Mechanistically, angiotensin II-induced podocyte cytoskeleton reorganization via FAK-Rac1 axis, FHL2 binds with FAK and is an important mediator of Ang II induced Rac1 activation, thus, FHL2 inhibition can selectively block FAK-Rac1 axis in podocyte and prevent proteinuria.
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80 |
32086849
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LIM and SH3 protein 1 (LASP-1): A novel link between the slit membrane and actin cytoskeleton dynamics in podocytes.
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81 |
32086849
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Knockdown of slit membrane components such as Nephrin or Neph1 and cytoskeletal adaptor proteins such as CD2AP in mice leads to breakdown of the filtration barrier with foot process effacement, proteinuria, and early death of the mice.
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82 |
32086849
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We identify CD2AP as a novel LASP-1 binding partner that regulates its association with the actin cytoskeleton.
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83 |
32086849
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Activation of the renin-angiotensin-aldosterone system, which is crucial for podocyte function, leads to phosphorylation and altered localization of LASP-1.
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84 |
32737144
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LIM-Nebulette Reinforces Podocyte Structural Integrity by Linking Actin and Vimentin Filaments.
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85 |
32963778
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NPS is caused by heterozygous loss-of-function mutations in the LMX1B gene, which encodes the LIM homeodomain transcription factor LMX1B.
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86 |
33761352
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Integrin adhesome proteomics reveals that EPB41L5 recruits PDLIM5 and ACTN4 to integrin adhesion complexes (IACs).
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87 |
34076843
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The mutation of LIM homeodomain transcription factor LMX1B gene leads to nail-patella syndrome (NPS), which is characterized by dysplastic nails, hypoplastic patellae, iliac horns and nephropathy.
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88 |
34076843
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We present the case of a male with LMX1B-associated nephropathy (LAN) who showed focal segmental glomerulosclerosis (FSGS) on light microscopy, and myelin figures and slight deposits of collagen fibrils on EM, without findings of glomerular basement membrane abnormality suggestive for NPS.
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