SAMHD1 Research Digest — 2026-07-29¶
Generated by samhd1_monitor | Model: claude-sonnet-5
Summary: 12 papers evaluated | 3 high-relevance (≥7) | 8 medium (5–6) | 1 low (3–4) | 0 scored <3
🔴 High Relevance (Score 7–10)¶
Auto-added to Zotero (threshold ≥6)
Mitophagy mitigates mitochondrial DNA-induced activation of cGAS-STING in autoimmune thyroiditis (from Endocrinology/Rheumatology—autoimmune thyroiditis model provides orthogonal evidence for cGAS-STING-driven tissue-specific autoimmunity that bridges to systemic interferonopathy phenotype in multi-system SAMHD1 families.)
Xiao-Chen Xie; Yang Guo; Ran Guo; Yong-Ze Li; Shan-Shan Wang — Nature Communications 2026
Score: 8/10 | Pathways: cGAS-STING, VDAC1, ISG15-mitophagy, POLG-mtDNA, mito-ROS-NF-kB, treatment-target, clinical-phenotype
Directly demonstrates mtDNA-cGAS-STING axis driving autoimmune disease via impaired mitophagy (PINK1/Parkin/TAX1BP1), mechanistically overlapping with the RED and BLUE loops in SAMHD1 A565T haploinsufficiency; identifies STING inhibition as therapeutic target applicable to convergent interferonopathy.
DOI: 10.1038/s41467-026-76047-9
NLRP3 Inhibitor KBD3536 Attenuates Acute Inflammation, Radiation-Induced Skin Injury, and Early Metabolic Dysfunction in Preclinical Models. (from Pharmacology/medicinal chemistry (NLRP3 inhibitor drug discovery and preclinical efficacy testing))
Qian Xinying; Ye Fei; Li Zhiyong; Chu Hongzhu; Xu Zeng — Pharmaceuticals (Basel, Switzerland) 2026
Score: 7/10 | Pathways: urate-NLRP3, NLRP3, NF-kB-IKK, treatment-target, clinical-phenotype
KBD3536 is a novel NLRP3 inhibitor with demonstrated efficacy in MSU-induced acute inflammation (gouty arthritis) and HFD-induced metabolic dysfunction—two pathologies directly implicated in the SAMHD1 A565T family phenotype (dGTP → purine catabolism → uric acid → MSU-NLRP3 axis; hepatic steatosis via IRF7-metabolic reprogramming); the paper provides preclinical validation of NLRP3 inhibition as a therapeutic strategy for this converged interferonopathy-metabolic syndrome.
DOI: 10.3390/ph19071083
CRISPR screening identifies GNPTAB as a noncanonical STING activator driving cellular senescence. (from Cell biology/gerontology—lysosomal biology and senescence mechanotransduction, not traditionally part of immunology or rheumatology training.)
Yin Jian; Gao Yizhou; Jing Yaobin; Jiang Xiaoyu; Wang Feibo — Protein & cell 2026
Score: 7/10 | Pathways: cGAS-STING, NF-kB-IKK, mTOR-lysosomal, treatment-target
GNPTAB-STING noncanonical activation via direct protein-protein interaction (E1119 interface) provides a novel upstream STING priming mechanism independent of canonical cGAS-mtDNA sensing; this represents an alternative route to STING/TBK1/NF-κB axis hyperactivation relevant to the BLUE and NF-κB crosstalk loops in A565T interferonopathy, with actionable therapeutic potential (STING-GNPTAB interface antagonism) for suppressing senescence-associated STING amplification.
DOI: 10.1093/procel/pwag049
🟡 Medium Relevance (Score 5–6)¶
Score ≥6 auto-added to Zotero; lower scores: review manually
DNAJB12/14 redox switching directs chaperone- and Bax/Bak-dependent ER protein reflux. (from Cell biology / ER stress and proteostasis; redox biochemistry)
Abu Madegam Laila; Gavriel Noa; Adebisi Raifu Tolulope; Igbaria Aeid — Redox biology 2026
Score: 6/10 | Pathways: BIK-cancer, mTOR-lysosomal, NF-kB-IKK, apoptosis-autophagy switch
BIK-mediated BAX/BAK recruitment to ER during severe ER stress mechanistically overlaps with the apoptosis-autophagy switch dysregulated in SAMHD1 haploinsufficiency, where ISGylation of BH3-only proteins and mitochondrial damage drive cell death; redox-sensitive DNAJB chaperone control of proteostasis and ER-to-cytosol signaling may modulate the severity of interferonopathy-driven ER stress in this family.
DOI: 10.1016/j.redox.2026.104324
Pectolinarigenin Attenuates LPS-Induced Lung Inflammation and Injury with Reduced HDAC3/NF-κB/NLRP3 Signaling. (from Pulmonology/immunotoxicology; plant natural products pharmacology)
Kim Danbee; Lee Dong-Keon; Park Jeong-Ran — Antioxidants (Basel, Switzerland) 2026
Score: 6/10 | Pathways: NLRP3, NF-kB-IKK, NF-kB-NLRP3-priming, treatment-target
Pectolinarigenin directly modulates the HDAC3/NF-κB/NLRP3 axis in LPS-induced inflammation, addressing two key steps in the proband's pathophysiology: NF-κB transcriptional priming of NLRP3 (Signal 1) and NLRP3 inflammasome activation (Signal 2); HDAC3 inhibition is a mechanistically novel approach to breaking the NF-κB–NLRP3 feed-forward loop and reducing mitochondrial ROS-driven inflammation, though the study uses acute LPS challenge rather than the chronic mitochondrial dNTP–oxMtDNA–NLRP3 circuit specific to SAMHD1 haploinsufficiency.
DOI: 10.3390/antiox15070898
Evolutionary history and recombination in the mitochondrial carrier SLC25 superfamily analyzed by similarities in the exon and transmembrane α‐helix sequences (from Evolutionary biology / structural proteomics)
Magnus Monné; D. V. Miniero; R. Calvello; A. Cianciulli; Luigi Palmieri — Protein Science : A Publication of the Protein Society 2026
Score: 6/10 | Pathways: mito-dNTP-transport, nucleotide-rewiring, other
This evolutionary/structural analysis of SLC25 superfamily (including PNC1/PNC2 nucleotide carriers) provides mechanistic foundation for understanding how substrate-specific subfamilies arose, directly relevant to the PNC1/2-mediated mitochondrial dNTP import bypass that drives NLRP3 hyperactivation in SAMHD1 haploinsufficiency; exon recombination patterns could illuminate functional specialization of dNTP transporters.
DOI: 10.1002/pro.70727
Synthetic Toll-Like Receptors for Control of Innate Immunity With Far-Red Light. (from Synthetic optogenetics/photobiology—a tool discipline offering potential mechanistic insight and future targeting strategy for the NF-κB and interferon regulatory axis but without direct mitochondrial, dNTPase, or disease-specific validation.)
Leopold Anna V; Verkhusha Vladislav V — Advanced science (Weinheim, Baden-Wurttemberg, Germany) 2026
Score: 6/10 | Pathways: NF-kB-IKK, IRF7-metabolic, treatment-target
Synthetic TLR optogenetics with MyD88→NF-κB/IRF3/IRF7 axis reprogramming is mechanistically adjacent to the NF-κB priming of NLRP3 and the dual IKKε-driven NF-κB + IRF7 crosstalk that sustains the convergent interferon–mitochondrial syndrome in SAMHD1 p.A565T haploinsufficiency; optical dissection of TLR→MyD88→NF-κB/IRF signaling could reveal druggable nodes in the IKK-NEMO complex and IRF7-metabolic amplification loop.
DOI: 10.1002/advs.202520640
Targeting the NLRP3/Caspase-1 pyroptotic pathway exacerbates insulin resistance upon exposure to nanoplastics with different surface chemistries. (from Environmental toxicology and metabolic disease; bridges to rare disease through convergent NLRP3-inflammasome-insulin-resistance axis and mitochondrial dysfunction phenocopy of SAMHD1 haploinsufficiency.)
Yao Xinxin; Cao Yu; Lin Sue; Chen Shihua; Xie Feiqin — Journal of hazardous materials 2026
Score: 6/10 | Pathways: NLRP3, mitochondrial-ROS-NF-kB, oxidative-stress-mtDNA, metabolic-dysfunction-insulin-resistance, inflammasome-pyroptosis, other
Paper demonstrates NLRP3/caspase-1 pyroptotic activation downstream of nanoplastic-induced mitochondrial dysfunction and cytosolic mtDNA accumulation in metabolic stress (hyperglycemia/insulin resistance), directly modeling the PURPLE-loop mechanism (ox-mtDNA → NLRP3) and BLUE-loop (mtDNA escape → inflammasome) operative in SAMHD1 A565T haploinsufficiency; validates NLRP3 inhibition as partial rescue strategy for metabolic phenotypes, but lacks SAMHD1, dNTPase, or dNTP-mediated mechanism, and uses exogenous environmental trigger rather than genetic haploinsufficiency.
DOI: 10.1016/j.jhazmat.2026.143078
Astilbin Alleviates Gouty Arthritis via Regulating NLRP3 Inflammasome and NF-κB Signaling Pathway: A Comprehensive Study on In Vitro and In Vivo Experimental Models. (from Rheumatology/Pharmacology (natural product anti-inflammatory); mechanism-of-action study demonstrating dual NLRP3–NF-κB inhibition in gouty arthritis model, transferable to dNTP-driven NLRP3 hyperactivation in SAMHD1-deficient states.)
Zhang Xiaoxi; Fu Gaoyang; Zhao Xinyu; Huang Yan; Li Fenfen — Nutrients 2026
Score: 6/10 | Pathways: urate-NLRP3, NLRP3, NF-kB-IKK, NF-kB-NLRP3-priming, treatment-target
Astilbin suppresses MSU-crystal–induced NLRP3 inflammasome and NF-κB signaling (P-p65, P-IKKα, P-IκBα, cleaved-caspase-1), directly targeting the GOLD pathway (dGTP → uric acid → MSU → NLRP3) and the NF-κB priming axis that sustains IL-1β autocrine amplification in SAMHD1 haploinsufficiency; relevant as a potential adjunctive therapeutic for the inflammatory arm of convergent interferon–mitochondrial syndrome in this family.
DOI: 10.3390/nu18142360
Blood transcriptome bridges orthogonal immunotypes and gut microbiome enterotypes in humans. (from Microbiome/Metabolomics)
Affaticati Fabio; Ha My K; Gehrmann Thies; De Boeck Ilke; Kuznetsova Mariia — Cell reports 2026
Score: 6/10 | Pathways: NF-kB-IKK, JAK-STAT, NLRP3, clinical-phenotype
Blood transcriptome integration identifies two distinct inflammatory profiles—interferon-driven versus NF-κB/IL-6-driven—that directly map to the divergent activation streams (BLUE interferon loop vs. PURPLE/GOLD NLRP3 loops) in SAMHD1 A565T haploinsufficiency; gut microbiota-immune axis bridging is relevant to family's reported gastrointestinal heterogeneity and immunotype stratification in interferonopathy populations.
DOI: 10.1016/j.celrep.2026.117752
Evaluation of Zebularine as a Potential DNA Methyltransferase 1 Inhibitor Associated With SAMHD1 Expression in Cancer Cells (from Oncology)
Muhammad Zeeshan Ahmed; Mahnoor Fatima; Ayesha Shahbaz; Zeeshan Mutahir — ChemistrySelect 2026
Score: 5/10 | Pathways: BIK-cancer, SAMHD1, treatment-target
Zebularine modulates SAMHD1 expression in prostate cancer cells (relevant to BIK-prostate axis and SAMHD1 as tumor suppressor in family phenotype), but mechanistic connection is via DNMT1 epigenetic silencing rather than dNTPase activity, mitochondrial dysfunction, or interferonopathy pathways central to A565T haploinsufficiency.
DOI: 10.1002/slct.73893
🟢 Low Relevance (Score 3–4)¶
Potential specialty bridges — skim titles
VRK3 promotes KSHV infection by suppressing the antiviral type I interferon response. (from Virology/Oncology (KSHV tropism and persistent infection pathogenesis, not immunometabolic or rare disease))
Yu Caroline J; Damania Blossom — PLoS pathogens 2026
Score: 3/10 | Pathways: IRF3, cGAS-STING, JAK-STAT, other
VRK3 suppresses IRF3 and TBK1 activation in KSHV infection, which intersects the cGAS-STING→IRF3→IFN-I axis (BLUE Loop), but lacks SAMHD1 involvement, mitochondrial pathology, dNTP metabolism, NLRP3, or direct relevance to the A565T haploinsufficiency mechanism driving the convergent interferon–mitochondrial syndrome.
DOI: 10.1371/journal.ppat.1014400
Pathway Coverage This Week¶
treatment-target: 7 papersNF-kB-IKK: 7 papersNLRP3: 5 paperscGAS-STING: 3 papersclinical-phenotype: 3 papersother: 3 papersurate-NLRP3: 2 papersmTOR-lysosomal: 2 papersBIK-cancer: 2 papersNF-kB-NLRP3-priming: 2 papersJAK-STAT: 2 papersVDAC1: 1 papersISG15-mitophagy: 1 papersPOLG-mtDNA: 1 papersmito-ROS-NF-kB: 1 papersapoptosis-autophagy switch: 1 papersmito-dNTP-transport: 1 papersnucleotide-rewiring: 1 papersIRF7-metabolic: 1 papersmitochondrial-ROS-NF-kB: 1 papersoxidative-stress-mtDNA: 1 papersmetabolic-dysfunction-insulin-resistance: 1 papersinflammasome-pyroptosis: 1 papersSAMHD1: 1 papersIRF3: 1 papers
↩ Re-run 08:33 UTC | Model: claude-sonnet-5¶
Summary: 1 new papers | 0 high-relevance (≥7) | 1 medium (5–6) | 0 low (3–4)
🟡 Medium Relevance¶
Multiple Roles of G3BP1 in Regulating STING-Dependent Interferon and Cytokine Induction by Cytosolic dsDNA and HSV-1 Infection. (from Virology/cell stress biology)
Trupti Devale; Praveen Manivannan; K. Malathi — Viruses 2026
Score: 6/10 | Pathways: cGAS-STING, treatment-target
Details G3BP1 as a regulator of cGAS-STING signaling (STING Golgi trafficking, IFN/cytokine output) directly relevant to the BLUE loop mechanism underlying the SAMHD1 interferonopathy, though it does not involve SAMHD1 itself.
DOI: 10.3390/v18070719