Excel · study · 2026
MiR-30d-5p modulation induces expression changes related to β-cell function, survival and regeneration
Listed in NCBI GEO
Type 1 diabetes is an autoimmune disease characterized by the destruction of insulin-producing β-cells, leading to hyperglycemia.
Description
A temporary partial remission (PR) phase often follows diagnosis, marked by improved glycemic control and reduced autoimmunity. This study investigates the role of miR-30d-5p, a microRNA highly expressed during PR, on beta-cell recovery and regeneration.
Remarkably, human pancreatic slices were successfully transfected with oligonucleotides (miR-30d-5p inhibitor or mimic), enabling exploration of post-transcriptional regulation in a human context. Bulk RNA sequencing on human pancreatic slices from 3 non-diabetic donors confirmed the regulation of gene networks linked to both β-cell function and regeneration. PCA revealed clustering by donor, indicating strong inter-donor variability; this was corrected using ComBat, allowing clearer separation of treatment groups.
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Differential expression analysis identified 273 DEGs for miR-30d-5p inhibition, 518 for overexpression, and 480 between the two treatments. Key gene changes reflected biological roles aligned with the miRNA’s proposed regulatory function: inhibition of miR-30d-5p upregulated genes linked to stress, immune activation, and metabolism (e.g., GLUT6, TGFB3, CYP4F8), while overexpression enhanced β-cell function and insulin secretion genes (e.g., HOOK1, ISL1, TTR, CACNB3).
GO analysis showed that miR-30d-5p inhibition enriched pathways related to protein stress and impaired differentiation, whereas overexpression activated processes involved in ion homeostasis, morphogenesis, and β-cell maintenance. Transcription factor analysis highlighted FOXO3, NOTCH3, JUND, and NR1H2 as potential regulators. Overall, miR-30d-5p promotes β-cell survival, insulin synthesis, and immunoregulation.
Links
Get the data
- GEO FTP directory ftp.ncbi.nlm.nih.gov/geo/series/GSE316nnn/GSE316801 ↗
download · from NCBI GEO
Where it is published
- GEO accession page ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE316801 ↗
landing page · from NCBI GEO
Documentation and papers
- PRJNA1404233 ncbi.nlm.nih.gov/bioproject/PRJNA1404233 ↗
project · from NCBI GEO
- PubMed 42375328 pubmed.ncbi.nlm.nih.gov/42375328 ↗
publication · from NCBI GEO
Topics
- Stated by source
- Expression profiling by high throughput sequencing · Homo sapiens
- From keywords
- Life Sciences
- Inferred from text
- Disease 75% · RNA sequencing 75% · Sequencing 75%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NCBI GEO | GSE316801 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| concepts[disease].local:disease:disease | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[field].local:field:life-sciences | mapping · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencing | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /gdstype |
| concepts[modality].local:modality:rna-seq | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:sequencing | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[organism].NCBITaxon:9606 | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /taxon |
| description | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /summary |
| publication_date | source · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| title | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /title |