biotech Open-Science Consortium Peer-reviewed literature • Clinical trial tracking • Translational research audit for Limb-Girdle Muscular Dystrophy R4 (LGMD2E).
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SGCBResearch LGMD R4
description Open Science • PDF Synthesis Dossiers • Peer-Reviewed Literature

Technical Dossiers & Literature Repository

Full-length documentation formatted for clinical consultation, custom solid-phase peptide synthesis (SPPS) manufacturing, and primary peer-reviewed PubMed citations.

Conceptual Working Papers

AI-Generated Synthesis Dossiers (Theoretical Blueprints)

Archival access to the two AI-generated technical synthesis documents created during initial hypothesis exploration. Please read the mandatory scientific audit notice below before downloading.

warning Scientific Audit Notice Regarding Downloadable PDFs (MED-SGCB-2026-CLIN & BIO-DMD-2026-TR8)

These two PDF documents were generated by AI as theoretical, in silico hypothesis papers. While the underlying disease genetics (c.341C>T and c.552T>G) and biological targets are real, the custom modified peptide sequences (Sealant-C20, Stapled NBD-C18, Cyclic Calpastatin 14-mer) and pharmacokinetic/dosing schedules inside these PDFs are unvalidated conceptual proposals that have never been tested in cells, animals, or humans. Do not use these PDFs for clinical treatment or human compounding; refer to our Evidence vs. Hypothesis Audit and the verified PubMed literature below.

DOC ID: MED-SGCB-2026-CLIN AI Conceptual Draft

LGMD R4 Conceptual Synthesis Dossier

4-page AI-generated conceptual blueprint exploring SGCB variant pathophysiology alongside theoretical in silico peptide designs (Sealant-C20, Stapled NBD-C18, Cyclic Calpastatin, and SS-31). Provided strictly for academic critique and hypothesis review.

• Indication Focus: Limb-Girdle Muscular Dystrophy R4 (SGCB)
• Status: Theoretical In Silico Concept (TRL 1)
• Clinical Validation: None (Unvalidated in Animals/Humans)
• Audit Companion: Read Scientific Audit →
download Download Conceptual Draft (PDF)
DOC ID: BIO-DMD-2026-TR8 AI Conceptual Draft

DMD Multi-Tier Conceptual Platform Report

Comparative AI-generated conceptual paper modeling cell-penetrating peptide conjugated morpholinos (PPMO Pip6a) and theoretical downstream cytoprotection concepts in Duchenne muscular dystrophy.

• Comparative Focus: Duchenne Muscular Dystrophy (DGC Axis)
• Status: Theoretical In Silico Concept (TRL 1)
• Clinical Validation: None (For Academic Review Only)
• Scope: Comparative Multi-Tier Hypothesis Baseline
download Download Comparative Draft (PDF)

Verified Scientific Grounding

Primary Peer-Reviewed Bibliography (14 Verified PubMed Studies)

Every citation below has been verified directly against the National Library of Medicine (NCBI Entrez PubMed database) with exact PMIDs, authors, journals, and publication dates:

1. Discovery of β-Sarcoglycan Deficiency in LGMD2E (1995)
Bönnemann CG, Modi R, Noguchi S, et al. β-sarcoglycan (A3b) mutations cause autosomal recessive muscular dystrophy with loss of the sarcoglycan complex. Nat Genet 1995 Nov; 11(3):266–73.
PMID: 7581449 →
2. Phase 1/2 Clinical Trial of Bidridistrogene Xeboparvovec / SRP-9003 (2024)
Mendell JR, Pozsgai ER, Lewis S, et al. Gene therapy with bidridistrogene xeboparvovec for limb-girdle muscular dystrophy type 2E/R4: phase 1/2 trial results. Nat Med 2024 Jan; 30(1):199–206.
PMID: 38177855 →
3. Deep Mutational Scanning of All 6,340 SGCB Coding Variants (2023)
Li C, Wilborn J, Pittman S, Daw J, Alonso-Perez J, Diaz-Manera J, Weihl CC, Haller G. Comprehensive functional characterization of SGCB coding variants predicts pathogenicity in limb-girdle muscular dystrophy type R4/2E. J Clin Invest 2023 Jun 15; 133(12):e168156.
PMID: 37317968 →
4. CFTR Corrector C17 in β-Sarcoglycanopathy Primary Patient Myotubes (2024)
Scano M, Benetollo A, Dalla Barba F, Sandonà D, et al. Efficacy of Cystic Fibrosis Transmembrane Regulator Corrector C17 in Beta-Sarcoglycanopathy—Assessment of Patient's Primary Myotubes. Int J Mol Sci 2024 Dec 11; 25(24):13336.
PMID: 39769077 →
5. ER Quality Control & Mannosidase I Inhibition of Sarcoglycan Mutants (2012)
Soheili T, Gicquel E, Poupiot J, et al. Rescue of sarcoglycan mutations by inhibition of endoplasmic reticulum quality control is associated with minimal structural modifications. Hum Mutat 2012 Feb; 33(2):429–39.
PMID: 22095924 →
6. Clinical & Genetic Spectrum in LGMD2E / R4 (2015)
Semplicini C, Vissing J, Krahn M, et al. Clinical and genetic spectrum in limb-girdle muscular dystrophy type 2E. Neurology 2015 Apr 28; 84(17):1772–81.
PMID: 25862795 →
7. Revised Mutation Spectrum in Sarcoglycanopathies (2008)
Trabelsi M, Kavian N, Daoud F, et al. Revised spectrum of mutations in sarcoglycanopathies. Eur J Hum Genet 2008 Jul; 16(7):793–803.
PMID: 18285821 →
8. Assembly Hierarchy of the Sarcoglycan Complex (1998)
Chan YM, Bönnemann CG, Lidov HG, Kunkel LM. Molecular organization of sarcoglycan complex in mouse myotubes in culture. J Cell Biol 1998 Dec 28; 143(7):2033–44.
PMID: 9864373 →
9. Systemic AAV β-Sarcoglycan Delivery in LGMD2E Mice (2017)
Pozsgai ER, Griffin DA, Heller KN, Mendell JR, Rodino-Klapac LR. Systemic AAV-Mediated β-Sarcoglycan Delivery Targeting Cardiac and Skeletal Muscle Ameliorates Histological and Functional Deficits in LGMD2E Mice. Mol Ther 2017 Apr 5; 25(4):855–69.
PMID: 28284983 →
10. Base Editing Repairs Sarcoglycan Mutation in Human Muscle Stem Cells (2021)
Escobar H, Krause A, Keiper S, et al. Base editing repairs an SGCA mutation in human primary muscle stem cells. JCI Insight 2021 May 24; 6(10):e145994.
PMID: 33848270 →
11. GRASP-LGMD Consortium Clinical Endpoints Study (2024)
Doody A, Alfano L, Diaz-Manera J, et al. Defining clinical endpoints in limb girdle muscular dystrophy: a GRASP-LGMD study. BMC Neurol 2024 Mar 15; 24(1):96.
PMID: 38491364 →
12. Copolymer Membrane Stabilizers in Muscular Dystrophy (2018)
Houang EM, Sham YY, Bates FS, Metzger JM. Muscle membrane integrity in Duchenne muscular dystrophy: recent advances in copolymer-based muscle membrane stabilizers. Skelet Muscle 2018 Oct 10; 8(1):31.
PMID: 30305165 →
13. NBD Peptide NF-κB Blockade & Calpastatin in Dystrophic Muscle
Peterson JM, Kline W, Canan BD, et al. Peptide-based inhibition of NF-κB rescues diaphragm muscle contractile dysfunction in a murine model of Duchenne muscular dystrophy. Mol Med 2011; 17(5-6):508–15 (PMID: 21267511). See also Spencer MJ, Mellgren RL. Hum Mol Genet 2002; 11(21):2645–55 (PMID: 12354790).
PMID: 21267511 & 12354790 →
14. Cardiolipin Protection via SS-31 (2014) & ACMG Standards (2015)
Szeto HH. First-in-class cardiolipin-protective compound as a therapeutic agent to restore mitochondrial bioenergetics. Br J Pharmacol 2014 Apr; 171(8):2029–50 (PMID: 24117165). Variant classification: Richards S, et al. Genet Med 2015; 17(5):405–24 (PMID: 25741868).
PMID: 24117165 & 25741868 →