Finally, long-waited paper was published and available online. Thanks a lot for @Brian74534732 and my PI AGO, and everyone who were involved in this project at @AGOcanaLab_COH for guiding and supporting this whole project.
https://t.co/gtnVjmcjlg
Drum rolls for our top post of 2025! 🥁
Through human pancreatic α-cell heterogeneity and trajectory inference analyses, Randy Kang (@randystyle) and team uncovered SMOC1 as a β-cell dedifferentiation gene.
https://t.co/x09Xpm89TA
🥼 Randy Kang and scientists at @cityofhope used single-cell and single-nucleus RNA-seq, RNA velocity, PAGA/cell trajectory inference, and gene commonality, interrogating α-β-cell fate switching in human islets.
@NatureComms | https://t.co/pZSJOCmnLl
5. Experimentally increasing SMOC1 in human β-cells reduces insulin expression & secretion, impairs β-cell identity, and induces α-cell–like features.
6. A possible feedback loop is suggested: T2D stress → FOXO1 up → SMOC1 up → worsening β-cell dysfunctional.
1. Using single-cell & single-nucleus RNA sequencing, the we defined five α-cell subtypes in human pancreatic islets.
2. In healthy islets, we modeled cell to cell transition using deep learning, and found out trajectories between α- and β-cells appear bidirectional.
Finally, long-waited paper was published and available online. Thanks a lot for @Brian74534732 and my PI AGO, and everyone who were involved in this project at @AGOcanaLab_COH for guiding and supporting this whole project.
https://t.co/gtnVjmcjlg
Finally, long-waited paper was published and available online. Thanks a lot for @Brian74534732 and my PI AGO, and everyone who were involved in this project at @AGOcanaLab_COH for guiding and supporting this whole project.
https://t.co/gtnVjmcjlg
3. In type 2 diabetes (T2D), trajectories favor a one-way transition from β → α, consistent with β-cell dedifferentiation.
4. Among genes implicated in this β→α shift, SMOC1 stands out: it is normally α-cell–selective but is upregulated in β-cells in T2D.
5. Experimentally increasing SMOC1 in human β-cells reduces insulin expression & secretion, impairs β-cell identity, and induces α-cell–like features.
6. A possible feedback loop is suggested: T2D stress → FOXO1 up → SMOC1 up → worsening β-cell dysfunctional.
3. In type 2 diabetes (T2D), trajectories favor a one-way transition from β → α, consistent with β-cell dedifferentiation.
4. Among genes implicated in this β→α shift, SMOC1 stands out: it is normally α-cell–selective but is upregulated in β-cells in T2D.
Excited to share our latest findings today at 2 PM!
We uncover how mitophagy regulates β-cell identity and immunogenicity in T1D.
Looking forward to great discussions on diabetes research—see you there!
Our new preprint presents 3D light-sheet imaging of the intact islet, focusing on β-cell subpopulations that lead and coordinate islet Ca2+ oscillations. Great collaboration between Erli Jin, @JenniferKBriggs, and @BennyScience . https://t.co/1j7mCFDrZP
Our lab is recruiting for three (!) postdoc positions:
1. First is a joint postdoc with @pdhsu to work on v cool (imo) syn bio projects bridging molecular & genome scales. Those with experience in either experimental syn bio or in ML (or both!) are welcome to apply! 1/n