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Article
Han Feng et al.
Through single-cell transcriptomic analysis, Feng et al. identified a novel T follicular helper cell subset with stem cell–like transcriptional features and long-term survival ability, which gave rise to effector Tfh cells in recall immune responses.
Article
Victor G. Lui et al.
Lui et al. describe a human LCK variant causing partial loss-of-function (LOF), including defective TCR signaling and T cell development. Using mouse models, they show that while complete LCK LOF results in SCID, partial LCK LOF causes CID with autoimmunity.
Article
Mohamed A. ElTanbouly et al.
We show in polyclonal settings that GC B cell differentiation into plasma cells is affinity dependent, resulting in the generation of high-affinity serum responses. We profile GC cells poised for PC differentiation compared with GC B cells selected for further affinity maturation.
Article
Jung Hwa Lim et al.
We established an Arl6ip1−/− mouse model mimicking HSP with severe spastic paralysis and gait abnormalities. Neuroinflammation was identified as a key pathophysiological change. AAV9-ARL6IP1 delivery reduced limb paraplegia and gait abnormality, making ARL6IP1 a potential target for HSP gene therapy.
Article
Vincent Fregona et al.
The work demonstrates that a primary oncogene of B-ALL (i.e., PAX5-ELN) confers stem cell–like features to a subset of committed B cell progenitors, converting them to quiescent/resistant pre-LSCs. Moreover, EGR1 represents a strong candidate to control the quiescence/resistance of murine pre-LSCs and of blasts from patients.
Article
Michael Solomon et al.
Solomon et al. establish that the Flt3+ multipotent progenitor (MPP4) compartment contains a quiescent/slow-cycling cell subpopulation, which has a prolonged in vivo hematopoietic potential and which constitutes a key transitional cell population between the hematopoietic stem cell and the lineage-biased MPP compartments.
Brief Definitive Report
Esther Bernaldo-de-Quirós et al.
The authors describe the first patient treated with a new cell therapy consisting of Tregs purified from pediatric thymus (thyTreg). 2 years after thyTreg administration in a heart-transplant child, no adverse effects have been reported and the peripheral Treg pool is preserved.
Issue Cover
Current Issue
Volume 220,
Issue 12,
4 December 2023
Reviews & Opinions
Review
Jeremiah Bernier-Latmani et al.
This review highlights classic and recent findings detailing molecular mechanisms of organ-specific functions of blood and lymphatic intestinal vessels, including nutrient absorption, epithelial cell maintenance, and immune cell recruitment. It also proposes future research directions for the field.
Insights
David Dominguez-Sola
In this issue of JEM, Yada et al. demonstrate that effective antibody affinity selection in germinal centers relies on the store-operated calcium entry (SOCE) component of the B cell receptor (BCR) signaling network.
Review
Angelina De Martin et al.
Lymphoid organ fibroblasts, known as fibroblastic reticular cells (FRCs), generate specialized niches in the tissue and coordinate immune cell interactions. De Martin and colleagues discuss basic concepts of FRC biology and how FRCs determine activation or attenuation of immune responses.

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