First-in-Human (FIH) Trial
**What it means:** This is the **very first time a drug is given to people** — never humans before, only animals (and cell cultures). It's essentially Phase 1a. The goals are: 1. **Safety** — does the...
Explainers
Plain-English explanations of MEF2C research terms, concepts, and scientific mechanisms.
Longitudinal Data / Longitudinal Study
**What it means:** Longitudinal data is collected from the **same subjects repeatedly over time** — like taking photos of the same tree every year to watch it grow. This is different from a cross-sect...
KRAS Pathway / MAPK/ERK Signaling Pathway
First: What Even Is a "Pathway"?Cells aren't just blobs of jelly. They're incredibly organized — like a giant office building where every department needs to know what to do, when to do it, and who's ...
Germline Mosaicism (rare inheritance mechanism)
**What it means:** Germline mosaicism is a rare phenomenon where a parent has a mutation in some of their reproductive cells (sperm or eggs) but NOT in their body cells. This means the parent tested "...
MicroRNA Therapeutic Advantage (why MUSC chose RNA over gene therapy)
**What it means:** The MUSC team evaluated multiple approaches (gene therapy, micro-RNA therapeutics) and chose the RNA-based approach because it "offered several advantages." These likely include: - ...
Inpart (Industry Partnering Platform)
**What it means:** Inpart is a **global scientific partnering platform** used by 90% of the world's top 50 pharmaceutical companies. Think of it as LinkedIn for drug development — it tracks which acad...
FDA Approval Precedent (for gene therapy)
**What it means:** The fact that seven AAV-based gene therapies have received FDA approval provides a regulatory pathway that the MEF2C gene therapy team can follow. FDA has extensive experience revie...
De Novo Mutation
**What it means:** A de novo (Latin for "from new") mutation is a genetic change that occurs **for the first time** in a person — it wasn't inherited from either parent. The parents' DNA is normal; th...
Natural History Study
**What it means:** A natural history study systematically tracks a disease **without giving any treatment**. It's like creating a detailed map of a territory before you try to change it — you need to ...
Retrospective Study
**What it means:** A retrospective study looks **backward in time** at existing data — reviewing past patient records, genetic test results, and clinical outcomes to find patterns. It's less rigorous ...
iPSC (Induced Pluripotent Stem Cell)
**What it means:** iPSCs are adult cells (like skin cells) that have been **reprogrammed** back to an embryonic-like state — they can become any cell type in the body. It's like hitting the "reset but...
Phase 1a/b Clinical Trial
**What the phases mean:** - **Phase 1a:** First-in-human testing. The primary goal is **safety** — "Is this drug safe in humans at all?" A small group of patients receives escalating doses to find the...
NEDHSIL (Neurodevelopmental Disorder with Hypotonia, Stereotypic Hand Movements, and Impaired Language)
**What it means:** NEDHSIL is the **alternative name** for MEF2C-associated syndrome. It describes the core clinical features without naming the gene. You might see it in older papers or clinical note...
Retinal (eye) in the context of gene therapy
**What it means:** The retina (the light-sensitive layer at the back of the eye) was actually the **first tissue** where gene therapy succeeded (Luxturna, 2017). The eye is "immune-privileged" — meani...