
伤口世界

- 星期五, 18 7月 2025
The Type 1 Diabetes T Cell Receptor and B Cell Receptor Repository in the AIRR Data Commons: a practical guide for access, use and contributions through the Type 1 Diabetes AIRR Consortium
Stephanie J. Hanna1 · Rachel H. Bonami2,3,4,5 · Brian Corrie6,7 · Monica Westley8 · Amanda L. Posgai9 · Eline T. Luning Prak10 · Felix Breden6,7 · Aaron W. Michels11 · Todd M. Brusko9,12,13 · Type 1 Diabetes AIRR Consortium
Received: 26 May 2024 / Accepted: 19 August 2024 / Published online: 29 October 2024
© The Author(s) 2024
Extended author information available on the last page of the article
Abstract
Human molecular genetics has brought incredible insights into the variants that confer risk for the development of tissuespecific autoimmune diseases, including type 1 diabetes. The hallmark cell-mediated immune destruction that is characteristic of type 1 diabetes is closely linked with risk conferred by the HLA class II gene locus, in combination with a broad array of additional candidate genes influencing islet-resident beta cells within the pancreas, as well as function, phenotype and trafficking of immune cells to tissues. In addition to the well-studied germline SNP variants, there are critical contributions conferred by T cell receptor (TCR) and B cell receptor (BCR) genes that undergo somatic recombination to yield the Adaptive Immune Receptor Repertoire (AIRR) responsible for autoimmunity in type 1 diabetes. We therefore created the T1D TCR/ BCR Repository (The Type 1 Diabetes T Cell Receptor and B Cell Receptor Repository) to study these highly variable and dynamic gene rearrangements. In addition to processed TCR and BCR sequences, the T1D TCR/BCR Repository includes detailed metadata (e.g. participant demographics, disease-associated parameters and tissue type). We introduce the Type 1 Diabetes AIRR Consortium goals and outline methods to use and deposit data to this comprehensive repository. Our ultimate goal is to facilitate research community access to rich, carefully annotated immune AIRR datasets to enable new scientific inquiry and insight into the natural history and pathogenesis of type 1 diabetes.
Keywords AIRR · AIRR Data Commons · Autoantibodies · B cell receptors · FAIR data · Next-generation sequencing · Single-cell RNA-seq · T cell receptors · Type 1 diabetes
Abbreviations
AAb Autoantibody/autoantibodies
ADC AIRR Data Commons
AIM Activation-induced marker
AIRR Adaptive Immune Receptor Repertoire
AIRR-seq AIRR sequencing
BCR B cell receptor
CDR3 Complementarity determining region 3
FAIR Findable, Accessible, Interoperable, Reusable
GEO Gene Expression Omnibus
HPAP Human Pancreas Analysis Program
IEDB Immune Epitope Database
MiAIRR Minimal information about AIRR
ML Machine learning
pLN Pancreatic lymph node(s)
SARS-CoV-2 Severe acute respiratory syndrome coronavirus 2
scRNA-seq Single-cell RNA-seq
SRA Sequence Read Archive
T1D TCR/BCR Repository The Type 1 Diabetes T Cell Receptor and B Cell Receptor Repository
TCR T cell receptor
TCRβ T cell receptor β chain
Tfh T follicular helper
Treg Regulatory T cell(s)
VDJ Variable, diversity and joining gene segments
Stephanie J. Hanna and Rachel H. Bonami contributed equally to this work. Aaron W. Michels and Todd M. Brusko contributed equally as joint senior authors.
Members of the Type 1 Diabetes AIRR Consortium are listed in the Acknowledgements.

- 星期三, 16 7月 2025
Unmet needs of Italian centers for pediatric diabetes care: analysis of a survey among pediatric diabetologists facing the national screening program for Type 1 Diabetes
Marco Marigliano1,11*† , Roberto Franceschi2†, Enza Mozzillo3†, Valentina Tiberi4†, Monica Marino4 , Giada Boccolini4 , Malgorzata Wasniewska5 , Maria Elizabeth Street6 , Maria Rosaria Licenziati7 , Riccardo Bonfanti8 , Felice Citriniti9 , Giuseppe D’Annunzio10, Maria Carolina Salerno3 , Valentino Cherubini4 and the Diabetes Study Group of the Italian Society of Pediatric Endocrinology and Diabetology (ISPED)
† Marco Marigliano, Roberto Franceschi, Enza Mozzillo and Valentina Tiberi contributed equally to this work.
Abstract
Backgrounds The incidence of Type 1 Diabetes (T1D) in children and adolescents is increasing by 3–4% per year. Children and adolescents with T1D (CwD) should receive person-centered, specialized treatment from a multidisciplinary team to ensure appropriate care. Italy is the first to implement a countrywide T1D screening program, which will raise the need for funding for specialized pediatric care. The study aims to update the organization of the Italian Centers for pediatric diabetes care.
Methods In 2022, members of the 59 Italian Centers following CwD were invited to complete an email survey regarding the Centers’ organization, characteristics, and activities. The questionnaire included information on responders, department organization, team composition, activities, and the organizational structures: department, ambulatory care services (AC), simple operational units (UOS), simple departmental operational units (UOSd), and complex operational units (UOC).
Results The data collected referred to the year 2022. According to the results, 21,318 people with diabetes were treated. Of these, 19,643 subjects (92.1%) have T1D (16,672 were CwD), 387 (1,8%) have Type 2 Diabetes, and 1,288 (6,1%) have other forms of diabetes. Compared to the 2012 survey, a 13% decrease (from 68 to 59 Centers) in the number of pediatric Centers caring for CwD was observed with a parallel increase of total (+6.6%) and average (+22%) number of CwD per Center. The estimated prevalence of T1D has increased (1.4 vs. 1.7 per 1,000 CwD—2012 vs. 2022). A reduction in numbers for AC (-22%) and UOS (-35%) was observed, whereas UOSd/UOC increased by 50%. Almost 35% of the dietitians and 40% of the psychologists were not permanent members of the multidisciplinary diabetes team.
Conclusions The observed decrease in the overall number of pediatric diabetes Centers, the reduction in specialized and dedicated HCPs, and the concurrent increase in the number of treated CwD in the last ten years indicate an alarming situation for pediatric diabetes treatment in Italy. Furthermore, the projected rise in CwD due to the National T1D screening program emphasizes the need for increased resources for specialized pediatric care of CwD at all stages.
Keywords Type 1 diabetes, Care, Children, Adolescents, Benchmarking, Team, Screening, Technology

- 星期二, 15 7月 2025
Simultaneous CRISPR screening and spatial transcriptomics reveal intracellular, intercellular, and functional transcriptional circuits
Loϊc Binan,1,2 Aiping Jiang,3,4,5 Serwah A. Danquah,1,6,12 Vera Valakh,1,6,13 Brooke Simonton,2,14 Jon Bezney,2,15 Robert T. Manguso,3,4,5 Kathleen B. Yates,3,4,5 Ralda Nehme,6 Brian Cleary,7,8,9,10,11,* and Samouil L. Farhi1,16,*
1 Spatial Technology Platform, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
2 Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
3 Cancer Program, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
4 Krantz Family Center for Cancer Research, Massachusetts General Hospital, Boston, MA 02144, USA
5 Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
6 Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
7 Faculty of Computing and Data Sciences, Boston University, Boston, MA 02215, USA
8 Department of Biology, Boston University, Boston, MA 02215, USA
9 Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
10 Program in Bioinformatics, Boston University, Boston, MA 02215, USA
11 Biological Design Center, Boston University, Boston, MA 02215, USA
12 Present address: Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
13 Present address: Stoke Therapeutics, Bedford, MA, USA
14 Present address: The Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
15 Present address: Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
16 Lead contact
*Correspondence: 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (B.C.), 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (S.L.F.)
https://doi.org/10.1016/j.cell.2025.02.012
SUMMARY
Pooled optical screens have enabled the study of cellular interactions, morphology, or dynamics at massive scale, but they have not yet leveraged the power of highly plexed single-cell resolved transcriptomic readouts to inform molecular pathways. Here, we present a combination of imaging spatial transcriptomics with parallel optical detection of in situ amplified guide RNAs (Perturb-FISH). Perturb-FISH recovers intracellular effects that are consistent with single-cell RNA-sequencing-based readouts of perturbation effects (Perturb-seq) in a screen of lipopolysaccharide response in cultured monocytes, and it uncovers intercellular and density-dependent regulation of the innate immune response. Similarly, in three-dimensional xenograft models, Perturb-FISH identifies tumor-immune interactions altered by genetic knockout. When paired with a functional readout in a separate screen of autism spectrum disorder risk genes in human-induced pluripotent stem cell (hIPSC) astrocytes, Perturb-FISH shows common calcium activity phenotypes and their associated genetic interactions and dysregulated molecular pathways. Perturb-FISH is thus a general method for studying the genetic and molecular associations of spatial and functional biology at single-cell resolution.

- 星期五, 11 7月 2025
Resurrection of endogenous retroviruses during aging reinforces senescence
Xiaoqian Liu,1,5,6,7,21 Zunpeng Liu,1,5,7,21 Zeming Wu,2,5,7,21 Jie Ren,3,5,7,21 Yanling Fan,3,7 Liang Sun,9 Gang Cao,8 Yuyu Niu,11,12,13 Baohu Zhang,1,7 Qianzhao Ji,2,7 Xiaoyu Jiang,2,7 Cui Wang,3,7 Qiaoran Wang,3,7 Zhejun Ji,1,5,7 Lanzhu Li,2,7 Concepcion Rodriguez Esteban,18 Kaowen Yan,2,5,7 Wei Li,4 Yusheng Cai,2,5,7 Si Wang,4,5,7,15,16 Aihua Zheng,7,19 Yong E. Zhang,7,14 Shengjun Tan,14 Yingao Cai,7,14 Moshi Song,2,5,6,7 Falong Lu,7,10 Fuchou Tang,17 Weizhi Ji,11,12,20 Qi Zhou,1,5,6,7,20 Juan Carlos Izpisua Belmonte,18,20 Weiqi Zhang,3,5,7,* Jing Qu,1,5,6,7,* and Guang-Hui Liu2,4,5,6,7,22,*
1State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
2 State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
3 CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
4 Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China
5 Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
6 Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
7 University of Chinese Academy of Sciences, Beijing 100049, China
8 State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
9 NHC Beijing Institute of Geriatrics, NHC Key Laboratory of Geriatrics, Institute of Geriatric Medicine of Chinese Academy of Medical Sciences, National Center of Gerontology/Beijing Hospital, Beijing 100730, China
10 State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100101, China
11 State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
12 Yunnan Key Laboratory of Primate Biomedical Research, Kunming, Yunnan 650500, China
13 Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
14 Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
15 Aging Translational Medicine Center, International Center for Aging and Cancer, Xuanwu Hospital, Capital Medical University, Beijing Municipal Geriatric Medical Research Center, Beijing 100053, China
16 The Fifth People’s Hospital of Chongqing, Chongqing 400062, China
17 Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
18 Altos Labs, Inc., San Diego, CA 94022, USA
19 State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
20 Senior author
21 These authors contributed equally
22 Lead contact
*Correspondence: 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (W.Z.), 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (J.Q.), 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。 (G.-H.L.)
https://doi.org/10.1016/j.cell.2022.12.017
SUMMARY
Whether and how certain transposable elements with viral origins, such as endogenous retroviruses (ERVs) dormant in our genomes, can become awakened and contribute to the aging process is largely unknown. In human senescent cells, we found that HERVK (HML-2), the most recently integrated human ERVs, are unlocked to transcribe viral genes and produce retrovirus-like particles (RVLPs). These HERVK RVLPs constitute a transmissible message to elicit senescence phenotypes in young cells, which can be blocked by neutralizing antibodies. The activation of ERVs was also observed in organs of aged primates and mice as well as in human tissues and serum from the elderly. Their repression alleviates cellular senescence and tissue degeneration and, to some extent, organismal aging. These findings indicate that the resurrection of ERVs is a hallmark and driving force of cellular senescence and tissue aging.
- 星期五, 04 7月 2025
Motor and vestibular signals in the visual cortex permit the separation of self versus externally generated visual motion
Mateo Ve´ lez-Fort,1,3 Lee Cossell,1,3 Laura Porta,1 Claudia Clopath,1,2 and Troy W. Margrie1,4,*
1 Sainsbury Wellcome Centre, University College London, London, UK
2 Bioengineering Department, Imperial College London, London, UK
3 These authors contributed equally
4 Lead contact
*Correspondence: 该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。
https://doi.org/10.1016/j.cell.2025.01.032
SUMMARY
Knowing whether we are moving or something in the world is moving around us is possibly the most critical sensory discrimination we need to perform. How the brain and, in particular, the visual system solves this motion-source separation problem is not known. Here, we find that motor, vestibular, and visual motion signals are used by the mouse primary visual cortex (VISp) to differentially represent the same visual flow information according to whether the head is stationary or experiencing passive versus active translation. During locomotion, we find that running suppresses running-congruent translation input and that translation signals dominate VISp activity when running and translation speed become incongruent. This cross-modal interaction between the motor and vestibular systems was found throughout the cortex, indicating that running and translation signals provide a brain-wide egocentric reference frame for computing the internally generated and actual speed of self when moving through and sensing the external world.