| 1994 |
Identification of LTBR (lymphotoxin-beta receptor) as a receptor specific for the LT-alpha/LT-beta heteromeric complex on the cell surface, distinct from the p60 and p80 TNF receptors that bind secreted LT-alpha homotrimers. |
Receptor binding assay / protein biochemistry |
Science |
High |
8171323
|
| 1995 |
TRAF2 (LAP1) and TRAF1 (EBI6) associate with the cytoplasmic domain of LTBR; EBV LMP1 co-immunoprecipitates with these TRAF proteins and causes them to localize to LMP1 clusters in the plasma membrane, linking LMP1 transformation to TNFR-family signaling including LTBR. |
Co-immunoprecipitation, immunofluorescence localization |
Cell |
High |
7859281
|
| 1996 |
TRAF5 binds specifically to the cytoplasmic region of LTBR (but not CD40, TNFR1, TNFR2, Fas, or NGFR) in vitro and co-immunoprecipitates with LTBR when overexpressed in COS7 cells; TRAF5 overexpression activates NF-κB and a dominant-negative truncated TRAF5 partially inhibits LTbetaR-induced NF-κB activation. |
In vitro translation binding assay, co-immunoprecipitation in COS7 cells, NF-κB reporter assay |
The Journal of biological chemistry |
High |
8663299
|
| 1997 |
TRAF3 is rapidly recruited to the LTBR cytoplasmic domain upon LT-alpha1/beta2 or agonistic anti-LTBR antibody treatment; dominant-negative TRAF3 (lacking RING and zinc finger domains) specifically inhibits LTBR-mediated cell death but not NF-κB activation, establishing TRAF3 as a critical component of the LTBR death-signaling complex and demonstrating two independent signaling pathways downstream of LTBR. |
Co-immunoprecipitation, stable overexpression of dominant-negative mutant, cell death assay |
Proceedings of the National Academy of Sciences of the United States of America |
High |
9122217
|
| 1997 |
HCV core protein directly binds the cytoplasmic tail of LTBR; the binding site on LTBR was mapped to a 58-amino-acid region of its cytoplasmic tail and the HCV core binding site was localized to residues 36–91 (hydrophilic region); association was confirmed in mammalian cells by co-immunoprecipitation. |
Yeast two-hybrid screen, GST pull-down assay, protein-protein blotting, mammalian co-immunoprecipitation |
Journal of virology |
High |
8995654
|
| 1998 |
LIGHT (TNFSF14), a new TNF superfamily member produced by activated T cells, binds both HVEM and LTBR (the LT-alpha/beta heterotrimer receptor); LIGHT does not form complexes with LT-alpha or LT-beta and HSV gD inhibits HVEM-LIGHT interaction, establishing LIGHT as a dual-receptor ligand in the lymphotoxin system. |
Receptor-ligand binding assays, transfection, functional blocking studies |
Immunity |
High |
9462508
|
| 1999 |
Decoy receptor 3 (TR6/DcR3) specifically binds LIGHT and FasL; TR6 inhibits LIGHT-induced cytotoxicity by blocking LIGHT interactions with both LTBR and HVEM, suppressing LIGHT-mediated apoptosis in HT29 cells that express both receptors. |
Immunoprecipitation of recombinant proteins, flow cytometry, cytotoxicity assay |
The Journal of biological chemistry |
High |
10318773
|
| 2000 |
LTBR (not HVEM) is necessary and sufficient for LIGHT-mediated apoptosis and ICAM-1 induction; LIGHT mutants with selective HveA binding cannot trigger cell death; LTBR (not HveA) recruits TRAF3, and dominant-negative TRAF3 blocks LIGHT-induced death, establishing TRAF3 recruitment as the mechanism propagating LTBR death signals. |
Point mutagenesis of LIGHT, receptor-specific antibody blocking, dominant-negative TRAF3 overexpression, cell death assay |
The Journal of biological chemistry |
High |
10799510
|
| 2002 |
LTBR ligation activates two distinct NF-κB pathways: (1) canonical IKKβ/NEMO-dependent NF-κB driving proinflammatory genes (VCAM-1, MIP-1β, MIP-2) and expression of p100; (2) non-canonical NIK/IKKα-dependent processing of NF-κB2/p100 to p52 (independent of NEMO/IKKγ), driving lymphoid organogenesis chemokines (SLC, BLC, ELC, SDF1, BAFF). |
Genetic epistasis using IKK-deficient cells, dominant-negative kinase mutants, NF-κB reporter assays, chemokine/cytokine expression analysis |
Immunity |
High |
12387745
|
| 2002 |
NIK and IKKα mediate LTBR-induced NF-κB activation through phosphorylation of the p65 subunit at serine 536 in its transactivation domain 1 (TA1); this phosphorylation is required for transcriptional activation without altering IκB phosphorylation levels or p65 nuclear localization, revealing a distinct mechanism for LTBR-driven NF-κB activity. |
Dominant-negative kinase mutants (NIK, IKKα), Gal4-fusion transactivation reporter assay, site-directed mutagenesis of p65-Ser536, phosphorylation detection following LTbetaR stimulation |
The Journal of biological chemistry |
High |
12419817
|
| 2006 |
LTBR signaling controls the development and maintenance of tertiary lymphoid organs (TLO) in the pancreas; blockade of TNFSF14 (LIGHT) signaling reduces LTBR-controlled migration factor expression and disrupts TLO organization, preventing diabetes in NOD mice; transgenic TNFSF14 expression in islets rapidly promotes TLO formation even without draining lymph nodes. |
In vivo blockade of TNFSF14, transgenic mouse model, gene expression analysis, histology |
Immunity |
High |
16934497
|
| 2009 |
Hepatic LT-alpha/LT-beta overexpression drives liver inflammation and HCC in mice; HCC development depends on lymphocytes and hepatocyte IKKβ but not TNFR1; in vivo LTbetaR stimulation implicates hepatocytes as the major LT-responsive liver cells; LTbetaR inhibition suppresses HCC formation in LT-transgenic mice with hepatitis. |
Liver-specific LTalphabeta transgenic mouse model, genetic knockout (IKKβ, TNFR1), in vivo LTbetaR blocking, histopathology |
Cancer cell |
High |
19800575
|
| 2016 |
LIGHT activates LTBR signaling in tumors, leading to production of chemokines that recruit T cells; antibody-guided tumor targeting of LIGHT creates a T cell-inflamed microenvironment and overcomes resistance to PD-L1 checkpoint blockade, establishing LTBR signaling as a driver of T cell infiltration and anti-tumor immunity. |
Antibody-LIGHT fusion protein, in vivo tumor models, T cell infiltration analysis, combination immunotherapy |
Cancer cell |
High |
26977880
|
| 2020 |
LTbetaR signaling promotes non-canonical NF-κB activation and TGFβ signaling in lung epithelial cells, driving COPD pathology; therapeutic inhibition of LTbetaR disrupts inducible bronchus-associated lymphoid tissue (iBALT), prevents epithelial cell death, activates WNT/β-catenin signaling in alveolar epithelial progenitor cells, and induces lung tissue regeneration and reversion of airway fibrosis in mice. |
In vivo LTbetaR blocking in mouse models (young and aged, cigarette smoke-exposed), signaling pathway analysis, cell death assays, WNT reporter assays, patient tissue analysis |
Nature |
High |
33149305
|
| 2022 |
CREB1 transcriptionally activates LTBR expression in lung epithelial cells; LTBR mediates NF-κB pathway activation downstream of hyperoxia; silencing LTBR rescues hyperoxia-induced suppression of cell viability and promotion of apoptosis in A549 and ATII cells, establishing a CREB1/LTBR/NF-κB axis in bronchopulmonary dysplasia. |
Luciferase reporter assay, ChIP assay, siRNA knockdown, cell viability assay (CCK-8), flow cytometry apoptosis assay |
Computational and mathematical methods in medicine |
Medium |
36118831
|
| 2023 |
TRAF5 interacts with LTBR in HCC cells (confirmed by co-immunoprecipitation and immunofluorescence); TRAF5 silencing downregulates LTBR expression and suppresses LTBR-mediated NF-κB signaling, enhancing necroptosis (phosphorylation of RIP1 and MLKL); LTBR overexpression rescues the pro-necroptotic and anti-proliferative effects of TRAF5 knockdown. |
Co-immunoprecipitation, immunofluorescence, siRNA knockdown, overexpression rescue, western blotting, xenograft model |
PeerJ |
Medium |
37366426
|
| 2024 |
LTBR maintains immunosuppressive M2 phenotype of tumor-associated macrophages (TAMs) through non-canonical NF-κB and Wnt/β-catenin signaling pathways; macrophage-specific knockout of LTBR hinders tumor growth and prolongs survival in vivo by blocking TAM immunosuppressive activity; TAM-targeted LTBR siRNA delivery improves ICI therapeutic response. |
Macrophage-specific conditional knockout, siRNA delivery, in vivo tumor models, signaling pathway analysis, immunofluorescence, single-cell RNA-seq analysis |
iMeta |
Medium |
39429877
|
| 2024 |
Lymphotoxin-beta (LTβ) ligand activates the LTBR/NIK/RelB non-canonical NF-κB axis in cholangiocarcinoma cells, promoting proliferation; NIK inhibitor B022 suppresses RelB expression in patient-derived CCA organoids and blocks nuclear co-translocation of RelB and p52 stimulated by LTα1/β2. |
LTα1/β2 stimulation, NIK small-molecule inhibitor, patient-derived organoids, real-time impedance measurement, immunoblot, RNA sequencing, in vivo murine CCA models |
Liver international |
Medium |
39164890
|
| 2013 |
Recombinant rabbit TNFSF14 (OcsTNFSF14) and extracellular LTBR (OceLTBR) proteins bind splenic T cells in vitro, confirming that the TNFSF14-LTBR ligand-receptor interaction is conserved in Oryctolagus cuniculus. |
Recombinant protein expression, confocal laser microscopy binding assay, SDS-PAGE, Western blot |
Molecular immunology |
Low |
23370464
|
| 2026 |
FAP-targeted LTBR agonist (FAP-LTBR) selectively activates endothelial cells via LTBR signaling in a FAP-dependent manner, inducing chemokine secretion, T cell adhesion and extravasation, HEV differentiation, TLS-like immune aggregate formation, and increased B and T cell (including stem-like TCF1+ CD8+) infiltration in murine tumor models. |
FAP-LTBR bispecific agonist, primary human endothelial cells, 3D microfluidic vascular models, multiple murine tumor models, spatial transcriptomics, 3D immunophenotyping |
Clinical cancer research |
Medium |
42012453
|
| 2025 |
LTβR and IFN sensing pathways are necessary and sufficient for HLA class I-independent cancer cell lysis by CD8+ TIL; whole-genome CRISPR loss-of-function screen nominated LTBR as a key determinant of TIL-mediated killing; expanded CD8+ TIL express high LTB and upregulate LTA upon co-culture with cancer cells. |
Whole-genome CRISPR loss-of-function screen, patient-derived TIL-melanoma co-cultures, scRNA-seq, scTCR-seq, validation knockouts |
bioRxivpreprint |
Medium |
|