| 2014 |
THC2-associated mutations in the 5' UTR of ANKRD26 disrupt binding of transcription factors RUNX1 and FLI1, which normally silence ANKRD26 during late megakaryopoiesis. Persistent ANKRD26 expression increases signaling via the thrombopoietin/MPL pathway and impairs proplatelet formation; ERK inhibition completely rescues the proplatelet formation defect in vitro. |
Primary megakaryocytes from THC2 patients and healthy subjects; ChIP/binding assays for RUNX1 and FLI1; functional proplatelet formation assays; pharmacological ERK inhibition |
The Journal of clinical investigation |
High |
24430186
|
| 2020 |
ANKRD26 is a centriolar distal appendage protein that interacts with and recruits the PIDDosome component PIDD1 to centriole distal appendages. This interaction is required for PIDDosome activation following centrosome amplification in non-transformed cells, limiting cell proliferation. A recurrent tumor-associated ANKRD26 mutation disrupts PIDD1 localization and PIDDosome activation. |
Genome-wide screen; Co-IP; super-resolution and confocal microscopy; genetic loss-of-function; quantification of PIDDosome activation after centrosome amplification |
The EMBO journal |
High |
33350486 33350495
|
| 2020 |
PIDD1 is recruited to mature centrosomes by the centriolar distal appendage protein ANKRD26. PIDDosome-dependent Caspase-2 activation requires both PIDD1 centrosomal localization (mediated by ANKRD26) and PIDD1 autoproteolysis. Following cytokinesis failure, supernumerary centrosome clustering appears necessary for PIDDosome activation. |
Immunofluorescence localization; ANKRD26 depletion/rescue; Caspase-2 activation assays; cytokinesis failure models |
The EMBO journal |
High |
33350486
|
| 2020 |
In C. elegans, ANKR-26 (ANKRD26 homolog) and TALP-3 (TALPID3 homolog) form a complex with the cilia gating component DYF-19 (FBF1 homolog) at transition fibers; co-depletion of TALP-3 and ANKR-26 specifically impairs FBF1/DYF-19 recruitment to transition fibers. In mammalian cells, TALPID3 and ANKRD26 play a conserved role in recruiting FBF1 to transition fibers. |
Forward genetic screen in C. elegans; co-immunoprecipitation; fluorescence microscopy; RNAi co-depletion in mammalian cells |
Nature communications |
High |
32366837
|
| 2007 |
Partial inactivation of Ankrd26 in mice causes extreme obesity, insulin resistance, increased body size, and hyperphagia without reduction in energy expenditure. The ANKRD26 protein is expressed in the arcuate and ventromedial hypothalamic nuclei, ependyma, and circumventricular organs. In enlarged hearts of mutant mice, phospho-Akt and mTOR levels are elevated. |
Mutant mouse model (partial gene inactivation); metabolic phenotyping; immunohistochemistry; western blotting for phospho-Akt and mTOR |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
18162531
|
| 2011 |
Ankrd26 knockout MEFs show higher spontaneous and induced adipogenesis than wild-type MEFs. ERK is constitutively activated in Ankrd26-/- MEFs, and MEK inhibitors block ERK activation, decrease adipogenesis, and reduce expression of C/EBPδ, KLF15, PPARγ2, CD34, and Pref-1, indicating that ERK activation downstream of Ankrd26 loss drives adipocyte differentiation. |
Mouse embryonic fibroblasts from Ankrd26-/- mice; adipogenesis induction assays; lipid droplet staining; qPCR for adipogenic markers; MEK inhibitor treatment; western blotting for phospho-ERK |
The Journal of biological chemistry |
Medium |
21669876
|
| 2012 |
ANKRD26 interacts with TRIO, GPS2, DIPA, and HMMR as identified by yeast two-hybrid and co-immunoprecipitation. Selective knockdown of each partner (Ankrd26, Trio, Gps2, Hmmr, or Dipa) increases adipogenesis in 3T3-L1 cells. Introducing the C-terminus of ANKRD26 into cells causes GPS2 and DIPA to translocate from the nucleus to the cytoplasm. |
Yeast two-hybrid; co-immunoprecipitation; siRNA knockdown; adipogenesis assays in 3T3-L1 cells; subcellular localization by microscopy |
PloS one |
Medium |
22666460
|
| 2011 |
The luciferase reporter assay indicates that THC2-associated 5' UTR mutations in ANKRD26 enhance ANKRD26 expression, suggesting the pathomechanism involves overexpression rather than haploinsufficiency. |
Luciferase reporter assay with wild-type and mutant 5' UTR sequences |
American journal of human genetics |
Medium |
21211618
|
| 2014 |
Ankrd26 knockout mice display defects in primary cilia in CNS regions controlling appetite and energy homeostasis (arcuate nucleus and related areas), identifying a ciliopathy-like mechanism underlying the hyperphagia phenotype. |
Ankrd26-/- mouse model; immunofluorescence microscopy of primary cilia in brain sections |
Brain structure & function |
Medium |
24633808
|
| 2011 |
Partial inactivation of Ankrd26 in mice on a pair-feeding diet results in better glucose tolerance and enhanced phosphorylation of the insulin receptor specifically in white adipose tissue, demonstrating a direct role of ANKRD26 in regulating insulin responsiveness of adipose tissue independently of obesity. |
Ankrd26 mutant mice under pair-feeding dietary regimen; glucose tolerance tests; western blotting for phospho-insulin receptor |
Diabetologia |
Medium |
21842266
|
| 2017 |
N-terminal truncating mutations of ANKRD26 (c.3G>A and c.105C>G) produce stable N-terminal truncated isoforms that strongly activate the MAPK/ERK signaling pathway. One such mutation is associated with strong ANKRD26 overexpression in vivo, consistent with the proposed AML predisposition mechanism. |
Cell transfection; western blotting for truncated isoforms; ERK pathway activation assays; patient sample analysis |
Journal of hematology & oncology |
Medium |
28100250
|
| 2023 |
ANKRD26 is expressed during early erythroid, megakaryocyte, and granulocyte differentiation and is required for progenitor cell proliferation; its expression is progressively silenced as differentiation proceeds. ANKRD26 interacts with and modulates the activity of the type I cytokine receptors MPL, EPOR, and G-CSFR; higher than normal ANKRD26 levels prevent receptor internalization, leading to increased downstream signaling and cytokine hypersensitivity. |
In vitro differentiation models (cell lines, primary patient cells, patient-derived iPSCs); Co-IP for receptor interactions; receptor internalization assays; proliferation/differentiation assays with gain- and loss-of-function |
Haematologica |
High |
36794499
|
| 2024 |
ANKRD26 is a plasma membrane-binding and -shaping protein that uses an N-terminal amphipathic structure for membrane binding and bending. In response to retinoic acid, ANKRD26 self-associates and forms clusters at the plasma membrane. An AML-associated N-terminal truncating ANKRD26 mutant lacks this amphipathic structure and loses membrane association and shaping abilities, rendering it inactive in retinoic acid/BDNF-induced neuroblastoma differentiation in both gain-of-function and loss-of-function/rescue studies. |
Live-cell imaging; membrane fractionation; mutagenesis of amphipathic helix; gain-of-function and loss-of-function/rescue differentiation assays; comparison of wild-type and AML-mutant ANKRD26 |
Cell reports |
High |
38493476
|
| 2024 |
ANKRD26 interacts with ETV6 and retains it in the cytoplasm, phenocopying ETV6-RT-related mutants. GPS2 (a component of the NCoR complex) binds both ANKRD26 and ETV6 and mediates this interaction. ANKRD26 overexpression deregulates ETV6 transcriptional repression, suggesting a common ANKRD26-ETV6-GPS2 pathogenic axis across related thrombocytopenias. |
Co-immunoprecipitation; subcellular localization by microscopy; transcriptional reporter assays; overexpression studies in cell lines |
Cells |
Medium |
39791724
|
| 2021 |
A large complex structural variant (paired-duplication inversion) produces a pathogenic gain-of-function WAC-ANKRD26 fusion transcript that phenocopies THC2, demonstrating that ectopic/sustained ANKRD26 expression driven by a WAC promoter is sufficient to cause the thrombocytopenia phenotype. |
Long-read whole-genome sequencing; functional studies of fusion transcript in patient cells |
The Journal of experimental medicine |
Medium |
33857290
|
| 2017 |
CpG hypermethylation at specific sites (-436 and -431 bp) in the Ankrd26 promoter in visceral adipose tissue of diet-induced obese mice impairs p300 binding, causes histone H4 hypoacetylation, and reduces RNA Pol II occupancy at the TSS, thereby silencing Ankrd26 expression. Ankrd26 downregulation enhances secretion of pro-inflammatory mediators by adipocytes. |
Bisulfite sequencing; ChIP for p300, DNMT3a/3b, MBD2, histone H4 acetylation, RNA Pol II; 3T3-L1 adipocyte functional assays; high-fat diet mouse model |
Scientific reports |
Medium |
28266632
|
| 2024 |
The FLI1 binding site within the 5' UTR of ANKRD26 (at position c.-107) is required for ANKRD26 silencing during megakaryocyte differentiation. A c.-107C>T variant predicted to disrupt FLI1 binding causes sustained ANKRD26 expression, impaired megakaryocyte maturation, and impaired proplatelet formation in patient-derived PBMCs; a reporter assay confirms increased ANKRD26 promoter activity with this variant. |
Sequencing; luciferase reporter assay; qPCR for ANKRD26 expression in differentiated PBMCs; proplatelet formation assays |
Clinical genetics |
Medium |
38757516
|
| 2026 |
In the ANKRD26-RET papillary thyroid carcinoma fusion, ANKRD26 provides plasma membrane anchoring (via its N-terminal membrane-association domain) and self-association (via its coiled-coil domain), which together with RET kinase domain activity lead to constitutive RET phosphorylation (Y905, Y981, Y1015, Y1062), strongly increased cell proliferation, and colony formation. These effects are suppressible by RET inhibitors agerafenib and pralsetinib, though with partial efficacy on proliferation. |
Cell transfection with ANKRD26-RET construct and domain mutants; phosphorylation analysis by western blot; cell proliferation and colony formation assays; pharmacological inhibitor treatment |
Biomedicine & pharmacotherapy |
Medium |
42127640
|
| 2026 |
Single-cell transcriptomics of THC2 patient bone marrow revealed that elevated ANKRD26 expression induces apoptosis in polyploid megakaryocytes via JUNB-mediated transcriptional activation of CDKN1A (p21), independently of the canonical p53-PIDDosome axis. Confocal imaging localized ANKRD26 to the centrosome in megakaryocytes, implicating it in mitotic regulation during maturation. |
Single-cell transcriptomics of primary bone marrow from 4 THC2 patients; confocal imaging; ex vivo functional profiling; genetic/transcriptional pathway analysis |
Blood |
Medium |
41538704
|
| 2024 |
PIDDosome activation requires ANKRD26 targeting of PIDD1 to mother centrioles in cardiomyocytes during postnatal heart development. In this context, PIDDosome-imposed ploidy restriction is p53-independent but requires p21/Cdkn1a, as demonstrated by nuclear RNA sequencing and genetic deletion experiments in mice. |
Mouse genetic KO of PIDDosome components; DNA content analysis; nuclear RNA sequencing; genetic deletion of p21 |
bioRxivpreprint |
Medium |
|