2026 World Down Syndrome Day
Together Against Loneliness

World Down Syndrome Day

March 21, 2026, marks the 15th World Down Syndrome Day, with this year's theme set as "Join hands to combat loneliness" This not only calls for society to offer more inclusion and companionship to individuals with Down syndrome (DS), but also reminds us: Understanding the underlying mechanisms of diseases is key to breaking the cycle of social isolation caused by health issues.

Down syndrome (trisomy 21) is the most common chromosomal numerical abnormality in humans, with affected children often facing multiple challenges such as intellectual disabilities, congenital heart disease, immune system abnormalities, and early-onset Alzheimer's disease. Although its pathogenesis is complex and there is currently no cure, researchers worldwide have never ceased their exploration. From uncovering DYRK1A in the role of cardiac defects, to the discovery GnRH therapy can improve cognition, and further elucidate IL-6 pathway-driven autoimmune mechanisms... each breakthrough brings hope for improving patients' quality of life and promoting their social integration.

CUSABIO has long been focused on DS research and has compiled information related to the core pathological mechanisms of DS. 20 Hot Research Targets and its research reagents (proteins, antibodies, ELISA kits). We believe, precision tools can accelerate scientific discovery. Ultimately, ensuring that every individual with Down syndrome is better understood and more effectively cared for, truly achieving "joining hands to combat loneliness."

Hot Targets in Down Syndrome Research:

Research Direction Core Scientific Questions (Association with Down Syndrome) Key Target
Core Kinases and Drug Targets How do dosage-sensitive genes on chromosome 21 drive the multisystem phenotypes of Down syndrome? Which targets hold the greatest potential for drug development? DYRK1A, RCAN1, APP, SOD1
Cognition and Neurodevelopment How does trisomy lead to intellectual disability and early-onset Alzheimer's disease, and how can cognitive function be improved? APP, APOE, AKT1, MAPT, BDNF, CREB1, MEF2D
Immune Inflammation and Metabolism Why are individuals with Down syndrome prone to autoimmune diseases, chronic inflammation, and metabolic disorders? What is the molecular basis of immune dysregulation? IL6, TNF, IFNG, CRP, CD4, INS, STAT3, PIM1
Cardiovascular and Cellular Signaling How does trisomy 21 lead to congenital heart disease and vascular abnormalities, and how are the key signaling pathways regulated? ACE2, AKT1, DYRK1A, NFATC1, EGFR, RHOA, ROCK
DYRK1A Downstream Signaling Network Through which downstream molecules does DYRK1A kinase affect the neural, cardiac, and metabolic pathologies of Down syndrome? NFATC1, STAT3, EGFR, TOMM70, MAPT, ROCK1, FOXO1

DS Research Hot Target ELISA Kits:

    DS Research Hot Target Recombinant Proteins:

      DS Research Hot Target Antibodies:

      ● Recombinant Antibody

      Product Name Code Target Species Reactivity Tested Applications
      Phospho-AKT1 (T450) Recombinant Monoclonal Antibody CSB-RA001553A450phHU AKT1 Human ELISA, WB
      Phospho-AKT1 (Ser473) Recombinant Monoclonal Antibody CSB-RA001553A473phHU AKT1 Human ELISA, WB, IHC, IF, IP
      AKT1 Recombinant Monoclonal Antibody CSB-RA917625A0HU AKT1 Human, Mouse, Rat ELISA, WB, IHC, IF
      APP Recombinant Monoclonal Antibody CSB-RA994273A0HU APP Human, Mouse, Rat ELISA, WB, IF
      CD4 Recombinant Monoclonal Antibody CSB-RA004935A0HU CD4 Human ELISA, WB, IHC
      CRP Recombinant Monoclonal Antibody CSB-RA988767A0HU CRP Human ELISA, IHC
      GAPDH Recombinant Monoclonal Antibody CSB-RA009232A0HU GAPDH Human, Mouse ELISA, WB
      GAPDH Recombinant Monoclonal Antibody CSB-RA009232MA1HU GAPDH Human ELISA, WB, IHC, IF, FC
      IL10 Recombinant Monoclonal Antibody CSB-RA011580A0HU IL10 Human ELISA
      IL6 Recombinant Monoclonal Antibody CSB-RA011664MA1HU IL6 Human ELISA
      INS Recombinant Monoclonal Antibody CSB-RA584163A0HU INS Human ELISA, IHC
      Phospho-MAPT (T231) Recombinant Monoclonal Antibody CSB-RA013481A231phHU MAPT Human ELISA, WB
      Phospho-MAPT (S396) Recombinant Monoclonal Antibody CSB-RA013481A396phHU MAPT Human ELISA, WB
      Phospho-MAPT (S324) Recombinant Monoclonal Antibody CSB-RA013481A324phHU MAPT Human ELISA, IF
      MAPT Recombinant Monoclonal Antibody CSB-RA246354A0HU MAPT Human ELISA, IHC
      MAPT Recombinant Monoclonal Antibody CSB-RA013481A1HU MAPT Mouse, Macaca mulatta ELISA
      Phospho-MAPT (S199) Recombinant Monoclonal Antibody CSB-RA051594A0HU MAPT Human ELISA, IHC, FC
      Phospho-MAPT (S404) Recombinant Monoclonal Antibody CSB-RA901354A0HU MAPT Human ELISA, IHC
      Phospho-MAPT (S214) Recombinant Monoclonal Antibody CSB-RA050476A0HU MAPT Human ELISA, IHC
      Phospho-MAPT (S202) Recombinant Monoclonal Antibody CSB-RA082445A0HU MAPT Human ELISA, FC
      MAPT Recombinant Monoclonal Antibody CSB-RA013481MA1HU MAPT Human ELISA, FC
      Phospho-MTOR (S2481) Recombinant Monoclonal Antibody CSB-RA008968A2481phHU MTOR Human ELISA, WB, IF
      Phospho-MTOR (S2448) Recombinant Monoclonal Antibody CSB-RA008968A2448phHU MTOR Human ELISA, WB, IHC, IF
      Phospho-TP53 (T55) Recombinant Monoclonal Antibody CSB-RA024077A55phHU TP53 Human ELISA, WB, IF
      Phospho-TP53 (S392) Recombinant Monoclonal Antibody CSB-RA024077A392phHU TP53 Human ELISA, WB
      Phospho-TP53 (S33) Recombinant Monoclonal Antibody CSB-RA024077A33phHU TP53 Human ELISA, IHC, IF
      Phospho-TP53 (S9) Recombinant Monoclonal Antibody CSB-RA024077A09phHU TP53 Human ELISA, IF
      TP53 Recombinant Monoclonal Antibody CSB-RA236796A0HU TP53 Human ELISA, WB, IHC, IF
      TP53 Recombinant Monoclonal Antibody CSB-RA825742A0HU TP53 Human ELISA, WB, IHC, IF
      TP53 Recombinant Monoclonal Antibody CSB-RA214807A0HU TP53 Human ELISA, IHC
      TP53 Recombinant Monoclonal Antibody CSB-RA592348A0HU TP53 Human ELISA, IF
      TP53 Recombinant Monoclonal Antibody CSB-RA024077MA1HU TP53 Human ELISA, WB, IF, FC

      ● Monoclonal Antibody

      Product Name Code Target Species Reactivity Tested Applications
      AKT1 Monoclonal Antibody CSB-MA011037 AKT1 Human, Mouse, Pig, Rat ELISA, WB
      APP Monoclonal Antibody CSB-MA0019501A0m APP Human, Mouse ELISA, WB, IHC, IF
      CD4 Monoclonal Antibody CSB-MA000228 CD4 Human, Mouse, Rat ELISA, IHC
      CD4 Monoclonal Antibody,Purified CSB-MA783233 CD4 Human ELISA, FC
      CRP Monoclonal Antibody CSB-MA027411E0m CRP Human ELISA, IHC
      GAPDH Monoclonal Antibody CSB-MA000071M0m GAPDH Human, Rat, Rabbit ELISA, WB, IHC, IP, IF, FC
      GAPDH Monoclonal Antibody CSB-MA000071M1m GAPDH Human, Mouse, Rabbit ELISA, WB, IHC, IP, IF
      GAPDH Monoclonal Antibody CSB-MA000071M2m GAPDH Human, Rat, Rabbit, Mouse ELISA, WB, IHC, IP, IF
      GAPDH Monoclonal Antibody CSB-MA000184 GAPDH Human, Rat, Mouse, Monkey, Dog, Chicken, Hamster, Rabbit, Pig, Sheep, Insect, Yeast ELISA, WB, IHC
      GAPDH Monoclonal Antibody CSB-MA000195 GAPDH Human, Rat, Mouse, Monkey, Dog, Chicken, Hamster, Rabbit, Pig, Sheep ELISA, WB
      GAPDH Monoclonal Antibody CSB-MA072309 GAPDH Human, Pig, Rat, Mouse ELISA, WB
      IFNG Monoclonal Antibody CSB-MA065241A0m IFNG Human ELISA, IHC
      IL6 Monoclonal Antibody CSB-MA067571A0m IL6 Human ELISA, WB, IHC
      TNF Monoclonal Antibody CSB-MA084771A0m TNF Bovine ELISA
      TNF Monoclonal Antibody CSB-MA080271 TNF Human, Mouse, Rat ELISA, WB, IHC
      TNF Monoclonal Antibody CSB-MA080272 TNF Human, Mouse, Rat ELISA, WB, IHC
      TP53 Monoclonal Antibody CSB-MA0240771A0m TP53 Human ELISA, WB, IHC
      TP53 Monoclonal Antibody CSB-MA000208 TP53 Human ELISA, WB, IHC, IF
      TP53 Monoclonal Antibody CSB-MA989534 TP53 Human ELISA, WB
      TP53 Monoclonal Antibody CSB-MA189580 TP53 Human, Dog, Mouse, Rat ELISA, WB

      ● Polyclonal Antibody

        Frequently Asked Questions (FAQ) on Down Syndrome Research

        Q: How is the theme "Together Against Loneliness" for World Down Syndrome Day 2026 related to scientific research?

        "Together Against Loneliness" not only calls for social inclusion but also emphasizes addressing the core health issues that lead to social isolation in patients through scientific research. Individuals with Down syndrome (DS) often face health challenges such as cognitive impairments, immune dysregulation, and heart defects, which limit their social participation. In-depth research into the mechanisms of targets like DYRK1A, APP, and IL-6, along with the development of intervention strategies to improve cognitive function and regulate immune balance, forms the scientific foundation for helping patients better integrate into society. The research reagents provided by CUSABIO are precisely aimed at supporting such translational research.

        Q: How are the targets on the page screened and classified?

        We select and classify targets based on the following principles:

        • High-Frequency Literature: Selected from high-impact papers in recent DS research (e. g., Science, Nature, Science Translational Medicine)
        • Pathological Correlation: Closely linked to the core phenotypes of DS (neurodevelopmental disorders, immune dysregulation, cardiac abnormalities)
        • Mechanism Depth: Special focus on key genes of chromosome 21 (DYRK1A, RCAN1, APP) and their downstream signaling networks
        • Drug Prospects: Inclusion of targets with therapeutic potential (such as pathways related to DYRK1A inhibitors)

        Five major categories cover the research panorama from basic pathogenic mechanisms to multi-system complications.

        Q: DS research spans multiple fields; how do I select the most suitable target for my research direction?

        Based on your research interests, you may refer to the following suggestions:

        • Neurocognitive/Alzheimer's Disease Risk: Prioritize APP, APOE, Tau, BDNF, AKT1
        • Immune Dysregulation/Autoimmunity: Focus on IL-6, TNF-α, CD4, STAT3, CRP
        • Cardiac Development/Complications: Recommended ACE2, NFATc, DYRK1A, EGFR
        • Drug target screening: Prioritize DYRK1A and its downstream signaling network targets.
        • Oxidative Stress/Metabolism: SOD1, INS, TOM70 can be studied.

        Q: Does CUSABIO provide customized services related to DS research?

        Yes! We offer the following customization services:

        • Target Customization: For DS-related targets not listed in the table (e. g., antibodies for specific phosphorylation sites).
        • Sample Testing: Utilizing ELISA kits for large-scale sample screening services
        • Species Expansion: Existing products primarily cover humans, mice, and rats, with customization available for other species.
        • Custom Labeling: Antibodies can be customized with various labels (FITC, HRP, Biotin, etc.).

        Welcome Contact us for immediate consultation

        Q: Can the products on the page be used for clinical diagnosis?

        All products displayed on the page are research reagents, intended for laboratory research use only (RUO) and are not suitable for clinical diagnosis or treatment. Our quality control system ensures the stability and reproducibility of the products in research applications.

        Q: What are the future trends in DS research? How does CUSABIO support cutting-edge exploration?

        Current trends in DS research include the following:

        • From Gene Dosage to Pathway Regulation: Focusing on the Signaling Networks of Key Kinases such as DYRK1A
        • From Single Target to Multi-System Intervention: Exploring the Cross-Regulation of Immune-Neuro-Metabolism
        • From Basic Mechanisms to Translational Research: Small Molecule Drugs Such as DYRK1A Inhibitors Enter Preclinical Validation

        CUSABIO will continue to track cutting-edge advancements, prioritizing the development of research reagents for hot targets (such as DYRK1A, NFATc, TOM70), providing high-quality tool support for DS researchers.

        References:

        [1] Increased dosage of DYRK1A leads to congenital heart defects in a mouse model of Down syndrome[J].EVA LANA-ELOLA, RIFDAT AOIDI. et al. SCIENCE TRANSLATIONAL MEDICINE. 24 Jan 2024.

        [2] Early chronic fasudil treatment rescues hippocampal alterations in the Ts65Dn model for down syndrome[J]. Rosa Lopez-Hidalgo, Raul Ballestin, et al. Neurochemistry International. Volume 174, March 2024.

        [3] GnRH replacement rescues cognition in Down syndrome[J].MARIA MANFREDI-LOZANO, VALERIE LEYSEN, MICHELA ADAMO, et al. Science.2 Sep 2022 : Vol 377.

        [4] Autoimmunity in Down's syndrome via cytokines, CD4 T cells and CD11c+ B cells[J]. Louise Malle, Roosheel S. Patel. et al. Nature 615, 305-314 (2023).

        [5] Prenatal pharmacotherapy rescues brain development in a Down's syndrome mouse model[J].Sandra Guidi, Fiorenza Stagni. et al. Brain. 2014 Feb;137(Pt 2):380-401.

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