{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n AKNA is an AT‐hook transcription factor that plays a central role in regulating gene networks critical to immune cell function and inflammation. It modulates the expression of key costimulatory molecules such as CD40 and CD40L in lymphocytes, thereby influencing cell–cell interactions and immune responses."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "3"}]}, {"type": "t", "text": " Mouse knockout studies have demonstrated that loss of AKNA sensitizes animals to pathogen‐induced inflammation, with resultant neutrophil‐driven tissue damage and even neonatal lethality, underscoring its negative regulatory function in acute inflammatory processes."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": " In human disease contexts, decreased AKNA expression has been observed in autoimmune conditions such as Vogt–Koyanagi–Harada syndrome, suggesting that insufficient AKNA activity may contribute to immune dysregulation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "4"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n \n "}, {"type": "p", "children": [{"type": "t", "text": "\n Moreover, genetic studies have linked polymorphisms in the AKNA gene—particularly a missense alteration affecting its AT‐hook DNA binding motif—to an increased risk of cervical cancer. Elevated rates of the risk allele and corresponding alterations in transcriptional regulation reinforce the notion that AKNA serves as a susceptibility factor in tumorigenesis by perturbing the normal control of costimulatory and inflammatory gene expression."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "5"}]}, {"type": "t", "text": ""}]}, {"type": "t", "text": "\n \n "}, {"type": "p", "children": [{"type": "t", "text": "\n In addition to its role in immune regulation and cancer susceptibility, AKNA is subject to modulation by exogenous factors. For instance, exposure to T‑2 toxin activates signaling cascades that culminate in reduced AKNA expression, contributing to growth hormone deficiency and imbalances in proinflammatory cytokines."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "7"}]}, {"type": "t", "text": " Genetic association studies have further implicated AKNA variants in non‐immunologic traits such as altered performance parameters in animal models (e.g., Quarter Horses) and changes in lipid metabolism."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "8"}]}, {"type": "t", "text": " In a broader biological context, homologous gene clusters encoding AT‐hook proteins, as found in actinomycetes (aknA), are involved in the biosynthesis of bioactive antibacterial peptides, highlighting the evolutionary versatility of this family."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "10"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n \n "}, {"type": "p", "children": [{"type": "t", "text": "\n Collectively, these studies delineate a multifaceted function for AKNA in coordinating immune signaling, maintaining inflammatory homeostasis, and influencing cellular differentiation. Its regulation of key receptor–ligand pairs in lymphocytes appears essential not only for proper immune responses but also for limiting pathogenic inflammation and tumorigenesis, thereby positioning AKNA as a potential biomarker and therapeutic target in a range of inflammatory, autoimmune, and oncologic conditions.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Wenbin Ma, Blanca Ortiz-Quintero, Roberto Rangel, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Coordinate activation of inflammatory gene networks, alveolar destruction and neonatal death in AKNA deficient mice."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Cell Res (2011)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/cr.2011.84"}], "href": "https://doi.org/10.1038/cr.2011.84"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "21606955"}], "href": "https://pubmed.ncbi.nlm.nih.gov/21606955"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Jennifer C Sims-Mourtada, Shirley Bruce, Morgan R McKeller, et al. "}, {"type": "b", "children": [{"type": "t", "text": "The human AKNA gene expresses multiple transcripts and protein isoforms as a result of alternative promoter usage, splicing, and polyadenylation."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "DNA Cell Biol (2005)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1089/dna.2005.24.325"}], "href": "https://doi.org/10.1089/dna.2005.24.325"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "15869410"}], "href": "https://pubmed.ncbi.nlm.nih.gov/15869410"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "Abrahán Ramírez-González, Joaquín Manzo-Merino, Carla Olbia Contreras-Ochoa, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Functional Role of AKNA: A Scoping Review."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Biomolecules (2021)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.3390/biom11111709"}], "href": "https://doi.org/10.3390/biom11111709"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "34827707"}], "href": "https://pubmed.ncbi.nlm.nih.gov/34827707"}]}, {"type": "r", "ref": 4, "children": [{"type": "t", "text": "Liming Mao, Peizeng Yang, Shengping Hou, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Label-free proteomics reveals decreased expression of CD18 and AKNA in peripheral CD4+ T cells from patients with Vogt-Koyanagi-Harada syndrome."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "PLoS One (2011)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1371/journal.pone.0014616"}], "href": "https://doi.org/10.1371/journal.pone.0014616"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "21297967"}], "href": "https://pubmed.ncbi.nlm.nih.gov/21297967"}]}, {"type": "r", "ref": 5, "children": [{"type": "t", "text": "Guillermo Perales, Ana I Burguete-García, Jisela Dimas, et al. "}, {"type": "b", "children": [{"type": "t", "text": "A polymorphism in the AT-hook motif of the transcriptional regulator AKNA is a risk factor for cervical cancer."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Biomarkers (2010)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.3109/1354750X.2010.485332"}], "href": "https://doi.org/10.3109/1354750X.2010.485332"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "20507260"}], "href": "https://pubmed.ncbi.nlm.nih.gov/20507260"}]}, {"type": "r", "ref": 6, "children": [{"type": "t", "text": "G A Martínez-Nava, K Torres-Poveda, A Lagunas-Martínez, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Cervical cancer-associated promoter polymorphism affects akna expression levels."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Genes Immun (2015)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/gene.2014.60"}], "href": "https://doi.org/10.1038/gene.2014.60"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "25373726"}], "href": "https://pubmed.ncbi.nlm.nih.gov/25373726"}]}, {"type": "r", "ref": 7, "children": [{"type": "t", "text": "Xianglian Liu, Deyu Huang, Pu Guo, et al. "}, {"type": "b", "children": [{"type": "t", "text": "PKA/CREB and NF-κB pathway regulates AKNA transcription: A novel insight into T-2 toxin-induced inflammation and GH deficiency in GH3 cells."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Toxicology (2017)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.tox.2017.10.013"}], "href": "https://doi.org/10.1016/j.tox.2017.10.013"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "29079362"}], "href": "https://pubmed.ncbi.nlm.nih.gov/29079362"}]}, {"type": "r", "ref": 8, "children": [{"type": "t", "text": "Guilherme L Pereira, Jessica M Malheiros, Alejandra M T Ospina, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Exome sequencing in genomic regions related to racing performance of Quarter Horses."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Appl Genet (2019)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1007/s13353-019-00483-1"}], "href": "https://doi.org/10.1007/s13353-019-00483-1"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "30666567"}], "href": "https://pubmed.ncbi.nlm.nih.gov/30666567"}]}, {"type": "r", "ref": 9, "children": [{"type": "t", "text": "May E Montasser, Stella Aslibekyan, Vinodh Srinivasasainagendra, et al. "}, {"type": "b", "children": [{"type": "t", "text": "An Amish founder population reveals rare-population genetic determinants of the human lipidome."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Commun Biol (2022)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/s42003-022-03291-2"}], "href": "https://doi.org/10.1038/s42003-022-03291-2"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "35393526"}], "href": "https://pubmed.ncbi.nlm.nih.gov/35393526"}]}, {"type": "r", "ref": 10, "children": [{"type": "t", "text": "Cai Chen, Christoph Bartenhagen, Michael Gombert, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Next-generation-sequencing of recurrent childhood high hyperdiploid acute lymphoblastic leukemia reveals mutations typically associated with high risk patients."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Leuk Res (2015)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.leukres.2015.06.005"}], "href": "https://doi.org/10.1016/j.leukres.2015.06.005"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "26189108"}], "href": "https://pubmed.ncbi.nlm.nih.gov/26189108"}]}]}]}