# Mechanisms and therapeutics of insulin signaling transduction genes in diabetic cardiomyopathy: a comprehensive updated review

**Authors:** Yufeng He, Xi Yang, Xinghui He, Guoshuang Wang, Chuang Li, Ping Yuan, Chunhong Li

PMC · DOI: 10.3389/fendo.2025.1589695 · Frontiers in Endocrinology · 2025-07-17

## TL;DR

This review explores how insulin signaling genes contribute to diabetic cardiomyopathy and their potential in developing new treatments.

## Contribution

The paper provides an updated comprehensive review of insulin signaling genes' roles in diabetic cardiomyopathy mechanisms and therapeutics.

## Key findings

- Key genes like IRS1, IRS2, PIK3R1, and GLUT4 are crucial in insulin signaling and glucose metabolism.
- Abnormalities in these genes can lead to impaired insulin signaling and promote diabetic cardiomyopathy.
- Understanding these genes may guide future therapeutic strategies for diabetic cardiomyopathy.

## Abstract

Diabetic cardiomyopathy (DCM), a complication of type 2 diabetes mellitus (T2DM), is closely associated with key genes in the insulin signaling pathway. Insulin regulates cellular metabolism and growth under normal conditions by activating downstream signaling pathways through its receptors. Nonetheless, insulin resistance, which compromises the insulin signaling pathway and impairs cardiovascular system performance, is common in individuals with T2DM. The key insulin signaling genes include IRS1, IRS2, PIK3R1, and GLUT4 play important roles in insulin receptor signaling, PI3K complex assembly, and glucose transport, respectively. Mutations or abnormal expression of these genes may lead to disorders in the insulin signaling pathway, affecting the normal regulation of glucose metabolism and impairment of myocardial function, thereby promoting the development of DCM. This review delves into the specific roles of these genes in the pathogenic mechanisms and treatment of DCM, with the aim of providing scientific evidence and guidance for future research endeavors.

## Linked entities

- **Genes:** IRS1 (insulin receptor substrate 1) [NCBI Gene 3667], IRS2 (insulin receptor substrate 2) [NCBI Gene 8660], PIK3R1 (phosphoinositide-3-kinase regulatory subunit 1) [NCBI Gene 5295], SLC2A4 (solute carrier family 2 member 4) [NCBI Gene 6517]
- **Diseases:** type 2 diabetes mellitus (MONDO:0005148)

## Full-text entities

- **Genes:** PPARGC1A (PPARG coactivator 1 alpha) [NCBI Gene 10891] {aka LEM6, PGC-1(alpha), PGC-1alpha, PGC-1v, PGC1, PGC1A}, SIRT5 (sirtuin 5) [NCBI Gene 23408] {aka SIR2L5}, Junb (jun B proto-oncogene, AP-1 transcription factor subunit) [NCBI Gene 16477], GLP1R (glucagon like peptide 1 receptor) [NCBI Gene 2740] {aka GLP-1, GLP-1-R, GLP-1R}, TGFB1 (transforming growth factor beta 1) [NCBI Gene 7040] {aka CAEND1, CED, DPD1, IBDIMDE, LAP, TGF-beta1}, HIF1A (hypoxia inducible factor 1 subunit alpha) [NCBI Gene 3091] {aka HIF-1-alpha, HIF-1A, HIF-1alpha, HIF1, HIF1-ALPHA, MOP1}, MIR155 (microRNA 155) [NCBI Gene 406947] {aka MIRN155, miRNA155, mir-155}, IGF1 (insulin like growth factor 1) [NCBI Gene 3479] {aka IGF, IGF-I, IGFI, MGF}, CYP2E1 (cytochrome P450 family 2 subfamily E member 1) [NCBI Gene 1571] {aka CPE1, CYP2E, P450-J, P450C2E}, EP300 (EP300 lysine acetyltransferase) [NCBI Gene 2033] {aka KAT3B, MKHK2, RSTS2, p300}, Slc2a4 (solute carrier family 2 (facilitated glucose transporter), member 4) [NCBI Gene 20528] {aka GT2, Glut-4, Glut4, twgy}, GSK3B (glycogen synthase kinase 3 beta) [NCBI Gene 2932], Mtor (mechanistic target of rapamycin kinase) [NCBI Gene 56718] {aka Frap1, RAFT1}, GAPDH (glyceraldehyde-3-phosphate dehydrogenase) [NCBI Gene 2597] {aka G3PD, GAPD, HEL-S-162eP}, FGF21 (fibroblast growth factor 21) [NCBI Gene 26291], Mlxipl (MLX interacting protein-like) [NCBI Gene 58805] {aka ChREBP, Mlx, WS-bHLH, Wbscr14, bHLHd14}, INS (insulin) [NCBI Gene 3630] {aka IDDM, IDDM1, IDDM2, ILPR, IRDN, MODY10}, SMAD3 (SMAD family member 3) [NCBI Gene 4088] {aka HSPC193, HsT17436, JV15-2, LDS1C, LDS3, MADH3}, TNF (tumor necrosis factor) [NCBI Gene 7124] {aka DIF, IMD127, TNF-alpha, TNFA, TNFSF2, TNLG1F}, CCN4 (cellular communication network factor 4) [NCBI Gene 8840] {aka WISP1, WISP1-OT1, WISP1-UT1, WISP1c, WISP1i, WISP1tc}, NPPB (natriuretic peptide B) [NCBI Gene 4879] {aka BNP, Iso-ANP}, PRKAB1 (protein kinase AMP-activated non-catalytic subunit beta 1) [NCBI Gene 5564] {aka AMPK, HAMPKb}, BCL2 (BCL2 apoptosis regulator) [NCBI Gene 596] {aka Bcl-2, PPP1R50}, SLC2A1 (solute carrier family 2 member 1) [NCBI Gene 6513] {aka CSE, DYT17, DYT18, DYT9, EIG12, GLUT}, TXK (TXK tyrosine kinase) [NCBI Gene 7294] {aka BTKL, PSCTK5, PTK4, RLK, TKL}, Pik3r1 (phosphoinositide-3-kinase regulatory subunit 1) [NCBI Gene 18708] {aka PI3K, p50alpha, p55alpha, p85alpha}, Gdnf (glial cell line derived neurotrophic factor) [NCBI Gene 14573] {aka ATF}, AKT1 (AKT serine/threonine kinase 1) [NCBI Gene 207] {aka AKT, PKB, PKB-ALPHA, PRKBA, RAC, RAC-ALPHA}, EIF4EBP1 (eukaryotic translation initiation factor 4E binding protein 1) [NCBI Gene 1978] {aka 4E-BP1, 4EBP1, BP-1, PHAS-I}, Mtor (mechanistic target of rapamycin kinase) [NCBI Gene 56717] {aka 2610315D21Rik, FRAP, FRAP2, Frap1, RAFT1, RAPT1}, SLC2A4 (solute carrier family 2 member 4) [NCBI Gene 6517] {aka GLUT4}, HDAC9 (histone deacetylase 9) [NCBI Gene 9734] {aka HD7, HD7b, HD9, HDAC, HDAC7B, HDAC9B}, IRS1 (insulin receptor substrate 1) [NCBI Gene 3667] {aka HIRS-1}, Creb1 (cAMP responsive element binding protein 1) [NCBI Gene 12912] {aka 2310001E10Rik, 3526402H21Rik, Creb, Creb-1}, PIK3R1 (phosphoinositide-3-kinase regulatory subunit 1) [NCBI Gene 5295] {aka AGM7, GRB1, IMD36, p85, p85-ALPHA, p85alpha}, TFAP2B (transcription factor AP-2 beta) [NCBI Gene 7021] {aka AP-2B, AP-2beta, AP2-B, PDA2}, PDPK1 (3-phosphoinositide dependent protein kinase 1) [NCBI Gene 5170] {aka PDK1, PRO0461}, EPHB2 (EPH receptor B2) [NCBI Gene 2048] {aka BDPLT22, CAPB, DRT, EK5, EPHT3, ERK}, Slc2a4 (solute carrier family 2 member 4) [NCBI Gene 25139] {aka Glut4}, Atf3 (activating transcription factor 3) [NCBI Gene 11910] {aka LRG-21}, Irs1 (insulin receptor substrate 1) [NCBI Gene 25467] {aka IRS1IRM}, Ifng (interferon gamma) [NCBI Gene 15978] {aka IFN-g, If2f, Ifg}, Insr (insulin receptor) [NCBI Gene 16337] {aka 4932439J01Rik, CD220, D630014A15Rik, IR, IR-A, IR-B}, EIF4E (eukaryotic translation initiation factor 4E) [NCBI Gene 1977] {aka AUTS19, CBP, EIF4E1, EIF4EL1, EIF4F, eIF-4E}, Mapk3 (mitogen-activated protein kinase 3) [NCBI Gene 26417] {aka Erk-1, Erk1, Ert2, Esrk1, Mnk1, Mtap2k}, Scd1 (stearoyl-Coenzyme A desaturase 1) [NCBI Gene 20249] {aka Scd, Scd-1, ab}, IRS2 (insulin receptor substrate 2) [NCBI Gene 8660] {aka IRS-2}, FOXO1 (forkhead box O1) [NCBI Gene 2308] {aka FKH1, FKHR, FOXO1A}, Rela (Rela proto-oncogene, NFKB subunit) [NCBI Gene 19697] {aka p65, p65 NF-kappa B, p65 NFkB}, Hdac1 (histone deacetylase 1) [NCBI Gene 433759] {aka HD1, Hdac1-ps, MommeD5, RPD3}, MEF2A (myocyte enhancer factor 2A) [NCBI Gene 4205] {aka ADCAD1, RSRFC4, RSRFC9, mef2}, NFKB1 (nuclear factor kappa B subunit 1) [NCBI Gene 4790] {aka CVID12, EBP-1, KBF1, NF-kB, NF-kB1, NF-kappa-B1}, Jun (Jun proto-oncogene, AP-1 transcription factor subunit) [NCBI Gene 16476] {aka AP-1, Junc, c-jun}, CD36 (CD36 molecule (CD36 blood group)) [NCBI Gene 948] {aka BDPLT10, CHDS7, FAT, GP3B, GP4, GPIV}, PTK2B (protein tyrosine kinase 2 beta) [NCBI Gene 2185] {aka CADTK, CAKB, FADK2, FAK2, PKB, PTK}, IGF1R (insulin like growth factor 1 receptor) [NCBI Gene 3480] {aka CD221, IGFIR, IGFR, JTK13}, Tlr4 (toll-like receptor 4) [NCBI Gene 29260], Ctnnb1 (catenin beta 1) [NCBI Gene 12387] {aka Bfc, Catnb, Mesc}, KCNQ1OT1 (KCNQ1 opposite strand/antisense transcript 1) [NCBI Gene 10984] {aka KCNQ1-AS2, KCNQ10T1, Kncq1, KvDMR1, KvLQT1-AS, LIT1}, AKT2 (AKT serine/threonine kinase 2) [NCBI Gene 208] {aka HIHGHH, PKBB, PKBBETA, PRKBB, RAC-BETA}
- **Diseases:** glioblastoma (MESH:D005909), diabetic heart disease (MESH:D003925), hypertension (MESH:D006973), apoptosis (MESH:D065703), hypoglycemia (MESH:D007003), cardiovascular death (MESH:D002318), Hyperglycemia (MESH:D006943), atrial fibrillation (MESH:D001281), hypertrophy (MESH:D006984), dyslipidemia (MESH:D050171), short stature (MESH:D006130), DCM (MESH:D058065), CL (MESH:D002971), cardiomyocyte damage (MESH:D020263), advanced glycation end (MESH:D003643), diastolic dysfunction (MESH:D018487), diabetic complications (MESH:D048909), obesity (MESH:D009765), CAD (MESH:D003324), myocardial infarction (MESH:D009203), ocular pitting (MESH:C536528), congenital heart disease (MESH:D006330), weight loss (MESH:D015431), tooth eruption (MESH:D014079), glucose intolerance (MESH:D018149), ischemia (MESH:D007511), myocardial structural and functional lesions (MESH:D020914), Mitochondrial dysfunction (MESH:D028361), multisystem disorder (MESH:D019578), metabolic abnormalities (MESH:D008659), HFpEF (MESH:D054144), myocardial energy deficiency (MESH:D011502), cancer (MESH:D009369), beta-cell insufficiency (MESH:D051437), Chronic inflammation (MESH:D007249), ovarian abnormalities (MESH:D010049), cytotoxicity (MESH:D064420), hyperglycemic (MESH:D006944), prostate cancer (MESH:D011471), T2DM (MESH:D003924), hyperinsulinemia (MESH:D006946), impaired (MESH:D060825), SHORT syndrome (MESH:C537327), Rieger's anomaly (MESH:C535679), impaired diastolic function (MESH:D006337), cardiac fibrosis (MESH:D005355), HF (MESH:D006333), cardiac remodeling (MESH:D020257), atherosclerosis (MESH:D050197), endothelial dysfunction (MESH:D014652), PCOS (MESH:D011085), impairment of myocardial function (MESH:D003072), metabolic disturbances (MESH:D024821), fluid retention (MESH:D016055), myocardial damage (MESH:D009202), hypoxia (MESH:D000860), breast cancer (MESH:D001943), restrictive (MESH:D002313), coronary microvascular dysfunction (MESH:D003327), hypertrophic (MESH:D002312)
- **Chemicals:** blood glucose (MESH:D001786), alpelisib (MESH:C585539), polymers (MESH:D011108), SeNPs (MESH:C059702), phloridzin (MESH:D010695), PLGA (MESH:D000077182), free fatty acid (MESH:D005230), saxagliptin (MESH:C502994), phosphatidylinositol 3,4,5-trisphosphate (MESH:C060974), Na+ (MESH:D012964), thiazide (MESH:D049971), alginate (MESH:D000464), metal (MESH:D008670), ROS (MESH:D017382), glycogen (MESH:D006003), Zn (MESH:D015032), lipid (MESH:D008055), Silver (MESH:D012834), NO (MESH:D009569), triglyceride (MESH:D014280), ceramides (MESH:D002518), gold (MESH:D006046), glycolipid (MESH:D006017), thiazolidinedione (MESH:C089946), Metformin (MESH:D008687), Carvacrolone (-), aloperine (MESH:C062701), PIP2 (MESH:D019269), testosterone (MESH:D013739), sulfonylureas (MESH:D013453), beta-hydroxybutyrate (MESH:D020155), Cardamonin (MESH:C436747), cGMP (MESH:D006152), AGEs (MESH:D017127), empagliflozin (MESH:C570240), oxygen (MESH:D010100), Flavonoids (MESH:D005419), fatty acid (MESH:D005227), lactate (MESH:D019344), Pioglitazone (MESH:D000077205), ATP (MESH:D000255), canagliflozin (MESH:D000068896), atrial natriuretic peptide (MESH:D009320), succinyl-CoA (MESH:C012046), ethyl acetate (MESH:C007650), Glucose (MESH:D005947), calcium (MESH:D002118), cholesterol (MESH:D002784)
- **Species:** Rattus norvegicus (brown rat, species) [taxon 10116], Mus musculus (house mouse, species) [taxon 10090], Canis lupus familiaris (dog, subspecies) [taxon 9615], Homo sapiens (human, species) [taxon 9606], Syzygium cumini (jaman, species) [taxon 260142]
- **Mutations:** GlyAsp, Arg972, T608R, A1C, Arg649Trp, p.His713Tyr, Gly1057Asp, K465E
- **Cell lines:** L6 — Mus musculus (Mouse), Hybridoma (CVCL_XK50), 3T3-L1 — Mus musculus (Mouse), Spontaneously immortalized cell line (CVCL_0123), H9C2 — Rattus norvegicus (Rat), Spontaneously immortalized cell line (CVCL_0286), HepG2 — Homo sapiens (Human), Hepatoblastoma, Cancer cell line (CVCL_0027)

## Full text

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## Figures

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## References

211 references — full list in the complete paper: https://tomesphere.com/paper/PMC12310498/full.md

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Source: https://tomesphere.com/paper/PMC12310498