| 1994 |
Hic-5 (TGFB1I1) is induced by TGF-β1 and H2O2, encodes a protein with four LIM motifs (zinc fingers), and overexpression exerts a cytostatic effect on cellular growth in a cell-type-dependent manner, implicating it in TGF-β1 growth-inhibitory signaling and cellular senescence. |
Differential cDNA screening, colony formation assay, Northern blot |
The Journal of biological chemistry |
Medium |
7929412
|
| 1997 |
Forced expression of Hic-5 in immortalized human fibroblasts induces senescence-like phenotypes including growth retardation, increased p21/WAF1/Cip1, and altered extracellular matrix gene expression; antisense Hic-5 delayed senescence in normal diploid fibroblasts. Hic-5 was localized to nuclei and had DNA affinity. |
Stable transfection with Hic-5 expression vector, antisense RNA expression, immunofluorescence, DNA binding assays |
Molecular and cellular biology |
Medium |
9032249
|
| 1998 |
Hic-5 localizes to focal adhesions in fibroblasts via its C-terminal LIM domains; the N-terminal domain of Hic-5 directly associates in vitro with the extreme C-terminal region of CAKβ (PYK2), and CAKβ co-immunoprecipitates with Hic-5 from cell lysates. Hic-5 is tyrosine-phosphorylated in Src-transformed cells and in response to osmotic stress. |
Co-immunoprecipitation, in vitro binding assay, immunofluorescence, Myc-tag localization |
The Journal of biological chemistry |
High |
9422762
|
| 1998 |
Hic-5 protein binds to focal adhesion kinase (FAK) via its N-terminal domain and is recruited to focal adhesions by its C-terminal LIM domains; overexpression of Hic-5 reduces tyrosine phosphorylation of paxillin, suggesting competitive inhibition. |
Co-immunoprecipitation, yeast two-hybrid, immunofluorescence, overexpression in COS cells |
The Journal of biological chemistry |
High |
9756887
|
| 1998 |
The LIM domains of Hic-5 bind DNA in a zinc-dependent manner in vitro; all four LIM domains contribute to DNA binding in distinctive ways, and the protein preferentially binds genomic fragments rich in G+A or with long A/T tracts. |
In vitro DNA binding assay, immunoprecipitation of protein-DNA complexes, PCR, truncation/domain analysis |
Nucleic acids research |
Medium |
9722648
|
| 1998 |
Hic-5 is expressed in human platelets instead of paxillin; its LIM domains target GFP to focal contacts, and GST-Hic-5 precipitates FAK and talin from platelet extracts. |
Cloning from bone marrow cDNA library, GFP targeting assay, GST pulldown from platelet extracts, RT-PCR |
Journal of cell science |
Medium |
9664039
|
| 1999 |
Hic-5 localizes to focal adhesions and interacts with FAK, FRNK, vinculin, and CSK (but not CRK); focal adhesion targeting is mediated primarily by the LIM domains but sequences outside LIM domains also contribute. |
Co-immunoprecipitation, immunofluorescence, domain deletion analysis in REF52 cells |
Journal of cell science |
High |
9858471
|
| 1999 |
Hic-5 interacts with PTP-PEST through its LIM3 domain; PTP-PEST's Pro-2 proline-rich sequence is the binding site on PTP-PEST. This interaction was demonstrated by yeast two-hybrid and in vitro binding with deletion/point mutants. |
Yeast two-hybrid screening, in vitro binding with deletion/point mutants, co-immunoprecipitation |
The Journal of biological chemistry |
High |
10092676
|
| 1999 |
Hic-5 functions as a ligand-dependent coactivator of androgen receptor (AR); the C-terminal half containing three LIM motifs is sufficient for AR interaction. Hic-5 enhances AR transcriptional activity in prostate cancer cells in response to DHT and also to antiandrogens such as hydroxyflutamide and 17β-estradiol. |
Yeast two-hybrid, mammalian two-hybrid, co-immunoprecipitation, transient transfection reporter assay in DU145 cells |
The Journal of biological chemistry |
High |
10075738
|
| 1999 |
Hic-5 (mammalian ortholog of Drosophila/Lepidoptera DALP) blocks muscle differentiation and induces apoptosis in C2C12 myoblasts when ectopically expressed; these effects are overcome by MyoD expression or contact with normal myoblasts, placing Hic-5 upstream of MyoD. |
Ectopic expression, C2C12 differentiation assay, epistasis by MyoD co-expression |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
10468589
|
| 2000 |
Hic-5 interacts with the tau2 transcriptional activation domain and nuclear matrix-targeting signal of glucocorticoid receptor (GR); a fraction of endogenous Hic-5 associates with the nuclear matrix; the C-terminal LIM domains are required for interactions with focal adhesions, nuclear matrix, and steroid receptors; the N-terminal region harbors a transcriptional activation domain essential for coactivator activity. |
Yeast two-hybrid, transient transfection reporter assay, biochemical fractionation, indirect immunofluorescence, domain mapping |
Molecular biology of the cell |
High |
10848625
|
| 2000 |
Hic-5 phosphorylation at tyrosine 60 by CAKβ and Fyn (but not FAK) was established; Y60 phospho-Hic-5 binds specifically to the SH2 domain of Csk; CAKβ-mediated phosphorylation requires both kinase activation and binding of Hic-5 to CAKβ. |
Overexpression in COS-7 cells, site-directed mutagenesis (Y60F), SH2 domain binding assay, osmotic stress stimulation |
FEBS letters |
Medium |
10838081
|
| 2001 |
Hic-5 overexpression sequesters FAK from paxillin, reduces tyrosine phosphorylation of paxillin and FAK, and inhibits integrin-mediated cell spreading on fibronectin in a FAK-dependent manner; this inhibition was not observed in FAK-/- MEFs, establishing competitive interference with paxillin–FAK interaction as the mechanism. |
Overexpression, co-immunoprecipitation, spreading assay on fibronectin, FAK-/- MEFs, dominant-active Rac1/Cdc42 rescue experiments |
Molecular and cellular biology |
High |
11463817
|
| 2001 |
Hic-5 is identified as an hsp27-binding protein; interaction is mediated by the LIM domains of Hic-5 (specifically LIM4) and the C-terminal domain of hsp27; Hic-5 inhibits hsp27-mediated protection against heat-induced cell death in an interaction-dependent manner. |
Yeast two-hybrid screen, co-immunoprecipitation, domain mapping with truncation mutants, heat shock survival assay in co-transfected 293T cells |
The Journal of biological chemistry |
Medium |
11546764
|
| 2002 |
Hic-5 interacts with DAT (dopamine transporter) via the N-terminal intracellular tail of DAT and the LIM region of Hic-5; Hic-5 reduces DAT uptake activity by decreasing cell-surface levels of the transporter; the LIM fragment alone binds DAT but lacks the ability to reduce surface DAT and acts as a dominant negative. Co-immunoprecipitation confirmed endogenous Hic-5–DAT association in brain striatal extracts. |
Yeast two-hybrid, co-immunoprecipitation from brain striata, surface biotinylation/uptake assay, domain mapping, immunostaining |
The Journal of neuroscience |
High |
12177201
|
| 2002 |
Hic-5 interacts with GIT1 via its LD3 motif (Hic-5-specific sequence) and the C-terminal paxillin-binding subdomain of GIT1; Hic-5/GIT1 complex contains less PIX than the paxillin/GIT1 complex; GIT1 C-terminal fragment perturbs Hic-5–GIT1 interaction and restores cell spreading inhibited by Hic-5. |
Yeast two-hybrid, overexpression co-immunoprecipitation, domain mapping, cell spreading assay |
Journal of biochemistry |
Medium |
12153727
|
| 2002 |
Hic-5 syndesmos (a syndecan-4 cytoplasmic domain interactor) directly binds to Hic-5 and paxillin; this interaction is triggered by protein kinase C activation, connecting syndecan-4 signaling to focal adhesion scaffolds. |
Yeast two-hybrid, direct binding assay, co-immunoprecipitation |
The Journal of biological chemistry |
Medium |
11805099
|
| 2002 |
Nuclear Hic-5 transactivates the c-fos promoter through GC/Sp1, Ets, and ERE/AP-1 elements around the −1.3 kb region; Hic-5 does not bind these elements directly but acts as a scaffold in transcriptional complexes involving p300. |
Luciferase reporter assay, stable transfectants, deletion/point mutant analysis of c-fos promoter |
Biochemical and biophysical research communications |
Medium |
12445807
|
| 2003 |
Hic-5 accumulates in the nucleus in response to oxidants (H2O2) via an oxidant-sensitive nuclear export signal (NES) located in its N-terminal region; NES consists of a leucine-rich stretch and two cysteines; leptomycin B retains Hic-5 in nucleus; nuclear Hic-5 participates in c-fos gene expression. FAK and PTP-PEST interactions with Hic-5 are sensitive to oxidants and regulate its nuclear translocation. |
Immunofluorescence, leptomycin B treatment, NES mutation analysis, dominant-negative mutant expression, subcellular fractionation |
Molecular biology of the cell |
High |
12631731
|
| 2004 |
Hic-5 binds directly to Smad3 through the MH2 domain of Smad3 and the C-terminus (LIM domains) of Hic-5; this interaction inhibits Smad3-dependent TGF-β transcriptional responses (Smad binding element- and PAI-1 promoter-driven reporters) in prostate cell lines; confirmed by GST pulldown in a cell-free system. |
Co-immunoprecipitation, GST pulldown in cell-free system, luciferase reporter assays, mammalian two-hybrid, domain mapping |
The Journal of biological chemistry |
High |
15561701
|
| 2004 |
Nuclear Hic-5 transactivates the p21 promoter through two Sp1 sites proximal to the TATA box; this effect is mediated via the Sp1 transactivation domain and functional interaction with p300 through the LIM4 domain of Hic-5; Hic-5 also interacts functionally and physically with Smad3 through its LIM domains to potentiate p21 promoter activity. |
Reporter assay, GAL4 fusion system, ChIP (chromatin immunoprecipitation), domain deletion analysis |
Journal of cellular biochemistry |
Medium |
14755691
|
| 2004 |
LIM3 and LIM4 of Hic-5/ARA55 are necessary for maximal GR transactivation; LIM4 functions as a nuclear matrix targeting sequence (NMTS), both necessary and sufficient to target a heterologous protein to the nuclear matrix. |
Yeast two-hybrid, domain deletion mapping, nuclear matrix targeting assay |
Journal of cellular biochemistry |
Medium |
15211577
|
| 2005 |
Hic-5/ARA55 is recruited to glucocorticoid-responsive promoters (MMTV, c-fos, p21) in a hormone-dependent manner; Hic-5 associates with GR-containing complexes that also include TIF2, RAC3, CBP, and p300; ablation of Hic-5 reduces TIF2 and p300 recruitment to GR target promoters; Hic-5 also associates with NCoR on GR-responsive promoters in the absence of hormone. |
Chromatin immunoprecipitation (ChIP) and sequential ChIP, RNA interference knockdown, reporter assay |
Molecular endocrinology |
High |
16141357
|
| 2005 |
PPARγ interacts with Hic-5; Hic-5 and PPARγ co-localize in gut villus epithelium; Hic-5 enhances PPARγ-mediated induction of intestinal differentiation markers (L-FABP, KLF4, keratin 20); siRNA against Hic-5 reduces PPARγ-mediated gut epithelial gene induction; forced Hic-5 expression during adipocyte differentiation inhibits adipogenesis and induces gut epithelial gene expression. |
Co-immunoprecipitation, siRNA knockdown, forced expression, reporter assay, ex vivo gut differentiation model |
Genes & development |
High |
15687259
|
| 2005 |
FAK and PTP-PEST, interacting partners of Hic-5, act as inhibitors of Hic-5 nuclear translocation; interaction of Hic-5 with FAK is regulated by specific cysteines near the binding site and decreases under oxidative conditions; interaction with PTP-PEST is also oxidant-sensitive. |
Subcellular fractionation, immunofluorescence, co-immunoprecipitation under oxidative conditions, cysteine mutation analysis |
Antioxidants & redox signaling |
Medium |
15706082
|
| 2005 |
Hic-5 is tyrosine-phosphorylated at residues Y38 and Y60 following EGF treatment; tyrosine-phosphorylated Hic-5 suppresses EGF-induced lamellipodia formation and Rac activation in a focal-adhesion-localization-dependent manner; non-phosphorylatable mutants (Y38F/Y60F) fail to suppress lamellipodia. |
Site-directed mutagenesis, overexpression in COS-7 cells, Rac activation assay, actin staining |
Experimental cell research |
Medium |
16183059
|
| 2005 |
Hic-5 is relocalized from focal adhesions to stress fibers through its C-terminal LIM domains during uni-axial cyclic stretch; Hic-5 (unlike paxillin) co-localizes with CRP2 and GIT1 to stress fibers under mechanical stress; Hic-5 suppresses cellular contractility in 3D collagen gels, an effect augmented by CRP2 co-localization. |
Immunofluorescence during cyclic stretch, domain deletion analysis, 3D collagen gel contraction assay |
Journal of cell science |
Medium |
15713747
|
| 2006 |
ERK8 interacts with Hic-5 through ERK8's C-terminal-independent region binding to LIM3 and LIM4 domains of Hic-5; ERK8 negatively regulates GRα and AR transactivation mediated by Hic-5 in a kinase-independent manner; ERK8 knockdown enhances dexamethasone-stimulated GR transcriptional activity; regulation of GRα by ERK8 is dependent on Hic-5 presence. |
Yeast two-hybrid, co-immunoprecipitation, transcriptional reporter assay, siRNA knockdown, domain mapping |
The Journal of biological chemistry |
Medium |
16624805
|
| 2006 |
SERT (serotonin transporter) redistributes between membrane skeleton and cytoskeletal compartments in platelets; Hic-5 interaction with SERT correlates with transporter inactivation and internalization; Hic-5–SERT associations are present in brain synaptosomes; phorbol ester treatment increases Hic-5–SERT interaction and causes SERT internalization. |
Differential extraction/sedimentation, co-immunoprecipitation, transport activity assay |
The Journal of biological chemistry |
Medium |
16803896
|
| 2006 |
Hic-5 homo-oligomerizes through its LIM4 domain; Hic-5 (but not paxillin) hetero-oligomerizes with PINCH via LIM4 of Hic-5 and the LIM5 region of PINCH; the Hic-5–PINCH complex also incorporates integrin-linked kinase (ILK); Hic-5 directs PINCH nuclear shuttling only in the presence of ILK; disruption of Hic-5–PINCH hetero-oligomerization impairs cellular growth. |
Immunoprecipitation, in vitro cross-linking, gel filtration, domain mapping, functional growth assay |
The Journal of biological chemistry |
High |
16737959
|
| 2006 |
Hic-5 is a LIM C-terminal half-binding protein for LEF/TCF transcription factors (specifically the conserved alternatively spliced exon); HIC-5 acts as a negative regulator of LEF/TCF-activated transcription; LEF/TCF members in turn repress HIC-5-mediated glucocorticoid-driven transcription in a subtype-dependent manner. |
Yeast two-hybrid, domain mapping, reporter gene assays, Xenopus axis induction assay |
The Journal of biological chemistry |
Medium |
16291758
|
| 2002 |
Pyk2 directly phosphorylates ARA55/Hic-5 at tyrosine 43, impairing its coactivator activity; Pyk2 also sequesters ARA55, reducing its interaction with androgen receptor; this results in suppression of AR transactivation. |
Yeast two-hybrid, co-immunoprecipitation, reporter assay, site-directed mutagenesis (Y43) |
The Journal of biological chemistry |
Medium |
11856738
|
| 2003 |
Dominant-negative ARA55 (dARA55) inhibits AR transcriptional activity and reduces agonist activity of antiandrogens; dARA55 suppresses endogenous ARA55-enhanced AR transactivation by interrupting ARA55 homodimerization; confirmed by siRNA-mediated silencing of ARA55. |
Inducible expression system, reporter assay, co-immunoprecipitation (dimerization assay), RNA interference |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
12700349
|
| 2007 |
Hic-5 is required for TGF-β1-induced EMT; siRNA knockdown of Hic-5 suppresses TGF-β1-induced cell migration, actin stress fiber formation, and E-cadherin down-regulation; Hic-5 knockdown suppresses TGF-β1 induction of RhoA activation; forced Hic-5 expression induces ROCK-dependent actin stress fibers; TGF-β1 induction of Hic-5 is RhoA/ROCK I-dependent, suggesting a feed-forward loop. |
siRNA knockdown, forced expression, RhoA activity assay, ROCK inhibitor treatment, immunofluorescence |
Journal of cellular physiology |
High |
17299801
|
| 2007 |
Hic-5 promotes endothelial cell migration toward lysophosphatidic acid (LPA); LPA recruits Hic-5 to focal adhesions and pseudopodia; WT Hic-5 enhances migration via MEK/ERK activation; LIM3 mutant (C369A/C372A) fails to enhance migration, establishing LIM3 dependence; Hic-5 knockdown reduces LPA-stimulated migration. |
Hic-5 knockdown, overexpression of WT and LIM3 mutant constructs, chemotaxis assay, ERK phosphorylation assay, MEK inhibition |
American journal of physiology. Heart and circulatory physiology |
Medium |
17337598
|
| 2008 |
Hic-5 directly binds Smad7 via its LIM3 domain; Hic-5 enhances TGF-β signaling by promoting Smad7 protein degradation (non-proteasomal pathway) without reducing Smad7 mRNA; enforced Hic-5 expression reverses Smad7's suppression of Smad 2/3 phosphorylation; lentiviral shRNA silencing of Hic-5 reduces TGF-β responses. |
Co-immunoprecipitation, direct binding assay, lentiviral shRNA, Western blot for phospho-Smad2/3, PAI-1 reporter assay |
Oncogene |
High |
18762808
|
| 2008 |
Hic-5 is essential for the pathogenic myofibroblast phenotype in hypertrophic scar fibroblasts; Hic-5 siRNA reduces TGF-β1 production, focal adhesion formation, α-SMA expression, collagen contraction, and ECM synthesis, demonstrating Hic-5 regulates autocrine TGF-β1 production. |
siRNA knockdown, TGF-β1 ELISA, collagen contraction assay, immunofluorescence, immunoblot |
The Journal of investigative dermatology |
Medium |
18401422
|
| 2008 |
GnRH receptor signaling induces nuclear translocation of androgen receptor via a pathway involving Pyk2, c-Src, and Hic-5; c-Src phosphorylates Hic-5 and promotes its association with AR; dominant-negative Pyk2 enhanced GnRH-induced AR nuclear translocation; GnRH-induced nuclear AR is transcriptionally inactive, functionally antagonizing testosterone. |
Co-immunoprecipitation, GFP-AR nuclear translocation imaging, dominant-negative constructs, Pyk2 kinase assay, reporter assay |
Neuroendocrinology |
Medium |
17202804
|
| 2008 |
Anchorage dependence of cell growth is regulated by competitive nuclear export of cyclin D1 and Hic-5 via CRM1; PINCH serves as an interface for this competition; on loss of adhesion, elevated ROS modifies the Hic-5 NES and stops its nuclear shuttling, retaining cyclin D1 in cytoplasm and inducing p21Cip1-dependent growth arrest. |
Nuclear export inhibition (leptomycin B), ROS scavengers, ROS-insensitive NES mutant expression, PINCH co-immunoprecipitation, cyclin D1 nuclear localization assay |
Molecular biology of the cell |
High |
18946086
|
| 2011 |
Paxillin and Hic-5 have distinct roles in breast cancer cell migration through 3D ECMs: paxillin depletion promotes elongated mesenchymal morphology with increased Rac1 activity; Hic-5 depletion induces amoeboid phenotype with elevated RhoA and ROCK-induced myosin II activity; Hic-5 is essential for adhesion formation in 3D environments. |
RNAi knockdown, 3D invasion assay, Rac1/RhoA activity assay, myosin II inhibition, live imaging |
Molecular biology of the cell |
High |
21148292
|
| 2011 |
ARA55/Hic-5 functions as a corepressor of TR4 nuclear receptor by recruiting histone acetyltransferase activity to promote TR4 acetylation at K175 and K176 in the DNA-binding domain, reducing TR4 DNA binding and transactivation. |
Co-immunoprecipitation, acetylation assay, reporter assay, site-directed mutagenesis of acetylation sites |
The Journal of biological chemistry |
Medium |
21515881
|
| 2011 |
Hic-5 directly binds Smads 1, 5, and 8 via its LIM3 domain and the MH2 domain of those Smads; this interaction represses BMP4 signaling including Id1 induction and BMP-induced apoptosis in prostate cells; Hic-5 silencing enhances endogenous phospho-Smad1/5/8; GST pulldown confirms direct binding in cell-free system. |
Co-immunoprecipitation, GST pulldown (cell-free), shRNA silencing, reporter assay, domain mapping |
Oncogene |
High |
21996749
|
| 2012 |
TGF-β-induced Hic-5 up-regulation or ectopic Hic-5 expression promotes invadopodia formation and ECM degradation; Hic-5 is tyrosine-phosphorylated by Src after TGF-β stimulation; non-phosphorylatable Y38/60F mutant inhibits matrix degradation; RhoC (not RhoA) is required for TGF-β and Hic-5-induced matrix degradation; Rac1 regulation of p38 MAPK mediates Hic-5-induced migration in the absence of TGF-β. |
Src inhibition, overexpression of phosphorylation mutants, Rho GTPase knockdown, in vitro invasion/degradation assay |
The Journal of cell biology |
High |
22529104
|
| 2012 |
Hic-5 and vinculin interaction is regulated by RhoA activity (in 2D and 3D), while paxillin and vinculin interaction is regulated by Rac1; active vinculin preferentially interacts with Hic-5 in response to RhoA and with paxillin in response to Rac1; Rac1 specifically regulates paxillin and actopaxin dynamics in adhesions. |
FRET, FRAP, co-immunoprecipitation, active/inactive Rac1/RhoA constructs, 3D matrix analysis |
PloS one |
High |
22629471
|
| 2012 |
Hic-5 LIM2 domain interacts with the RING finger of Cbl-c through a zinc-coordinating mechanism; this interaction enhances Cbl-c ubiquitin ligase activity after Src phosphorylation/activation and promotes Cbl-c-mediated ubiquitination of EGFR. |
Co-immunoprecipitation, ubiquitin ligase activity assay, domain mapping with zinc-chelation, EGFR ubiquitination assay |
PloS one |
Medium |
23145173
|
| 2014 |
Hic-5 depletion selectively affects both activation and repression of GR target genes; for some induced genes Hic-5 facilitates Mediator complex recruitment; for many other genes Hic-5 prevents GR occupancy and chromatin remodeling, thereby inhibiting hormone-dependent regulation (acting as an 'on/off switch'). |
siRNA depletion, genome-wide gene expression analysis, ChIP for GR occupancy and chromatin remodeling |
Proceedings of the National Academy of Sciences of the United States of America |
High |
24591583
|
| 2014 |
Hic-5 associates with ubiquitin ligase Cbl-c and ubiquitin-binding protein HSP27; this trimeric interaction is required for ubiquitination of Nox4 and its proteasomal degradation; Hic-5 silencing induces constitutive Nox4 expression by blocking this ubiquitin-proteasomal degradation pathway; this positions Hic-5 as a negative feedback regulator of myofibroblast differentiation. |
Co-immunoprecipitation, ubiquitination assay, siRNA knockdown, proteasome inhibitor treatment |
The Journal of biological chemistry |
Medium |
24831009
|
| 2014 |
Hic-5 rapidly translocates to the nucleus upon androgen stimulation in prostate myofibroblasts, coincident with increased FAK phosphorylation; as a coregulator Hic-5 amplifies or inhibits approximately 50% of AR target genes genome-wide. |
Live cell imaging of nuclear translocation, genome-wide expression analysis after Hic-5 depletion, ChIP |
Molecular and cellular endocrinology |
Medium |
24440747
|
| 2015 |
Hic-5 deficiency attenuates hepatic stellate cell (HSC) activation and liver fibrosis; mechanistically, Hic-5 absence inhibits TGF-β/Smad2 signaling by upregulating Smad7, resulting in reduced collagen and α-SMA in activated HSCs; established in both Hic-5 KO mice and siRNA in vivo. |
Hic-5 KO mouse model, bile duct ligation and CCl4 injury, siRNA in vivo, Western blot for Smad2/Smad7, immunohistochemistry |
Journal of hepatology |
High |
26334580
|
| 2015 |
Hic-5 is required for mechanically dependent stress fiber generation and MRTF-A nuclear accumulation in response to TGF-β; Hic-5 is required for α-SMA induction and cellular contractility; MRTF-A localization by Hic-5 and Hic-5 expression by MRTF-A form a mechanically dependent feed-forward loop for myofibroblast differentiation. |
siRNA knockdown, forced expression, substrate rigidity manipulation, MRTF-A nuclear localization imaging, α-SMA induction, contractility assay |
Journal of cell science |
High |
26759173
|
| 2015 |
Hic-5 mediates endothelial sprouting initiation by forming a complex with MT1-MMP via its LIM2 and LIM3 domains; this complex is enriched in detergent-resistant membrane fractions; Hic-5 depletion lowers surface MT1-MMP levels; Hic-5 also bridges MT1-MMP and FAK; the Hic-5/MT1-MMP/FAK complex is present in angiogenic vessels in vivo. |
siRNA knockdown, rescue by re-expression, co-immunoprecipitation, domain mapping (LIM2/LIM3 deletion mutants), surface protein assay, immunostaining of porcine pregnancy vasculature |
Journal of cell science |
High |
26769900
|
| 2015 |
TGF-β-induced Hic-5 expression and interaction with HSP27 is required for Hic-5 localization to focal adhesions; Hic-5 expression is required for TGF-β-mediated increases in focal adhesion number, adhesive force, and migration in vascular smooth muscle cells; Nox4 downregulation impedes Smad signaling and blocks Hic-5 upregulation; Hic-5 is downstream of Nox4/Smad4. |
Molecular biology techniques, co-immunoprecipitation, Nox4 siRNA, Smad4-deficient cells, traction force microscopy/adhesion assay |
Arteriosclerosis, thrombosis, and vascular biology |
Medium |
25814672
|
| 2016 |
In PyMT breast cancer mouse model, Hic-5 is primarily expressed in cancer-associated fibroblasts (CAFs); Hic-5-/-;PyMT mice have fewer CAFs, reduced ECM deposition, reduced tumor stroma rigidity, and decreased FAK Y397 phosphorylation in tumor cells; isolated Hic-5-/- CAFs show defective stress fiber organization, reduced contractility, and failure to deposit/organize ECM. |
Hic-5 KO mouse crossed with PyMT model, immunohistochemistry, isolated CAF assays, 2D/3D ECM organization assay |
Oncogene |
High |
27893716
|
| 2017 |
Hic-5 blocks GR binding to a subset of gene regulatory sites by selectively inhibiting GR interaction with chromatin remodeling ATPases CHD9 and BRM (SMARCA2); CHD9 and BRM are required for GR occupancy at 'blocked' gene loci but not at other GR target sites; Hic-5 selectively inhibits GR-CHD9 and GR-BRM interactions. |
Depletion of 11 chromatin remodelers by siRNA, ChIP for GR occupancy, chromatin remodeling assay, co-immunoprecipitation |
The Journal of biological chemistry |
High |
28381557
|
| 2017 |
Itch E3 ubiquitin ligase directly binds HIC-5 and targets it for K63-linked ubiquitination; reconstitution with WT Itch but not catalytic mutant (C830A) normalizes IL-17-driven profibrotic gene expression; shRNA inhibition of HIC-5 normalizes profibrotic gene expression in Itch-/- myofibroblasts, placing HIC-5 downstream of Itch in intestinal fibrosis regulation. |
Co-immunoprecipitation, ubiquitination assay, rescue with Itch WT vs C830A mutant, shRNA knockdown |
Mucosal immunology |
Medium |
28612841
|
| 2018 |
Hic-5 promotes fibrillar adhesion formation in CAFs through a newly characterized interaction with tensin1; Src-dependent phosphorylation of Hic-5 facilitates the Hic-5–tensin1 interaction to prevent β1 integrin internalization and lysosomal trafficking; this interaction is mechanosensitive and promotes fibronectin fibrillogenesis in a rigidity-dependent manner. |
Co-immunoprecipitation, Src inhibition, fibrillar adhesion assay, integrin trafficking assay, 2D/3D fibronectin fibrillogenesis, rigidity manipulation |
Oncogene |
High |
29348458
|
| 2019 |
Hic-5 is essential for Src-induced invadopodia rosette formation; FAK kinase activity plus proximity to LD2,3 motifs of Hic-5 is necessary for rosette formation; Rac1, formin, and myosin II activity are required for rosette dynamics; superresolution microscopy revealed formin FHOD1 and INF2-mediated radial F-actin fibers from rosettes. |
Live cell imaging, domain mapping, pharmacological inhibition (FAK, Rac1, formin, myosin II), superresolution microscopy, Hic-5 KO CAFs |
Molecular biology of the cell |
Medium |
30893012
|
| 2019 |
Hic-5 genetic ablation in CAFs promotes collapse of the vimentin intermediate filament network; vimentin collapse correlates with loss of soluble vimentin precursors and decreased vimentin S72/S82 phosphorylation; Cdc42 inhibition rescues vimentin collapse in Hic-5 KO CAFs; pan-formin inhibition reproduces vimentin collapse, placing Hic-5 upstream of Cdc42 and formin-mediated vimentin organization. |
Hic-5 KO CAFs, EGFP-Hic-5 rescue, FRAP of vimentin dynamics, Cdc42 inhibition, SMIFH2 formin inhibition, Western blot |
Molecular biology of the cell |
Medium |
31644368
|