T. Akiyama

Establishing a method for the cryopreservation of viable peripheral blood mononuclear cells in the International Space Station

This study develops a cryopreservation method for blood cells under ISS constraints, demonstrating viability recovery and subset analysis using flow cytometry.

Heart generation via blastocyst complementation in Mesp1/2-deficient mice

This study generates functional adult hearts in Mesp1/2-deficient mice using blastocyst complementation with pluripotent stem cells, showing successful derivation of all cardiovascular lineages from exogenous cells.

Mitochondrial protein C15ORF48 is a stress-independent inducer of autophagy that regulates oxidative stress and autoimmunity

This study identifies C15ORF48 as a mitochondrial protein that induces stress-independent autophagy, reducing oxidative stress and autoimmunity in thymic epithelial cells.

Pseudoirreversible inhibition elicits persistent efficacy of a sphigosine-1-phosphate receptor-1 antagonist

This study identifies KSI-6666 as a pseudoirreversible S1PR1 antagonist that suppresses inflammation through interaction with a methionine residue.

Acute irradiation alters the heterogeneity among medullary thymic epithelial cells 2

This study shows acute irradiation reduces AIRE-expressing mTECs and a unique Ccl25+ TSA-high mTEC cluster, altering mTEC heterogeneity and potentially impairing T cell self-tolerance.

TCR Repertoire Analysis of CD4-Positive T Cells from Blood and an Affected Organ in an Autoimmune Mouse Model

This study examines TCR repertoires in CD4+ T cells from blood and stomachs of AIRE KO mice to correlate TCR diversity with autoimmune symptom variation and organ-specific disease manifestations.

Functional and long-lived melanocytes from human pluripotent stem cells with transient ectopic expression of JMJD3

This study generates functional and long-lived melanocytes from human pluripotent stem cells using transient JMJD3 expression, showing melanogenesis and engraftability in mice.

Metalloproteinase-dependent and TMPRSS2-independnt cell surface entry pathway of SARS-CoV-2 requires the furin-cleavage site and the S2 domain of spike protein

This study identifies a TMPRSS2-independent metalloproteinase-dependent entry pathway for SARS-CoV-2 that requires the furin cleavage site and S2 domain of the spike protein, highlighting new therapeutic targets.

Integrative analysis of scRNAs-seq and scATAC-seq revealed transit-amplifying thymic epithelial cells expressing autoimmune regulator

The paper identifies transit-amplifying thymic epithelial cells expressing Aire and CD80 through integrative scRNA-seq and scATAC-seq analysis.

Adaptive fitness in APC-mutant cells requires chromosome rearrangements

The paper shows that APC-mutant cells gain adaptive fitness through chromosome rearrangements that restore AURKA activity and counteract mitotic defects.

Quantitative analysis reveals reciprocal regulations underlying recovery dynamics of thymocytes and thymic environment

The paper quantitatively analyzes thymic crosstalk dynamics during recovery from irradiation, identifying regulatory interactions and predicting a new regulation of CD4+CD8+ thymocytes.