Developmental cellPub Date : 2026-05-13DOI: 10.1016/j.devcel.2026.04.009
Eduardo Mateo-Bonmatí
{"title":"A chromatin reader connects salicylic acid signaling to the RNA polymerase II gearbox in plants.","authors":"Eduardo Mateo-Bonmatí","doi":"10.1016/j.devcel.2026.04.009","DOIUrl":"10.1016/j.devcel.2026.04.009","url":null,"abstract":"<p><p>Plant hormone signaling is often framed as a linear pathway ending in transcriptional activation. A recent Developmental Cell paper by Yu et al. identifies the H3K4me3 reader RGSA1 as a salicylic acid-inducible factor that recruits P-TEFb to promoter-proximal chromatin, promoting RNA polymerase II pause release and transcription elongation.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"61 5","pages":"969-970"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13Epub Date: 2026-03-02DOI: 10.1016/j.devcel.2026.02.003
Zhen Zhang, Ben Jin, Chenyu You, Ya Li, Li Lin, Jianlong Sun
{"title":"Hematopoietic stem cells activate a latent differentiation pathway to facilitate recovery after 5-fluorouracil-induced myeloablation.","authors":"Zhen Zhang, Ben Jin, Chenyu You, Ya Li, Li Lin, Jianlong Sun","doi":"10.1016/j.devcel.2026.02.003","DOIUrl":"10.1016/j.devcel.2026.02.003","url":null,"abstract":"<p><p>Myeloablative chemotherapy induces hematopoietic regeneration, a process orchestrated by hematopoietic stem cells (HSCs). Although prior studies have documented enhanced HSC differentiation during this process, the temporal changes in HSC fate in response to such stress remain unclear. Here, we employed lineage tracing and mathematical modeling to investigate the cell-fate dynamics of Endothelial Protein C Receptor (EPCR)-high HSCs following 5-fluorouracil (5-FU)-induced myeloablation. Our analysis revealed a transient surge in HSC differentiation immediately after 5-FU treatment, generating primarily myeloid-biased multipotent progenitors (MPPs)-subsets that typically receive limited HSC input under steady-state conditions. Following this initial cell-fate switch, elevated HSC differentiation persisted but rapidly reverted to the homeostatic differentiation pattern observed in unperturbed hematopoiesis. Additionally, our data highlight a substantial contribution of MPPs to myeloid and lymphoid lineage regeneration following 5-FU challenge. Together, these findings delineate the sequential fate transitions adopted by HSCs during severe myeloablation and identify stage-specific differentiation patterns of HSCs in stress hematopoiesis.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":" ","pages":"1044-1060.e7"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147347535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13DOI: 10.1016/j.devcel.2026.04.002
Sergio Moreno, Sandra Lopez-Aviles
{"title":"Chromatin-associated PP1 subcomplexes: Together, but not in each other's pockets.","authors":"Sergio Moreno, Sandra Lopez-Aviles","doi":"10.1016/j.devcel.2026.04.002","DOIUrl":"10.1016/j.devcel.2026.04.002","url":null,"abstract":"<p><p>In this issue of Developmental Cell, Stamatiou et al.<sup>1</sup> dissect the role of three chromatin-associated PP1 regulatory subunits during mitotic exit. Using rapid degradation and multi-omics approaches they reveal distinct, non-overlapping functions of Ki-67, Repo-Man, and PNUTS in genome stability and the establishment of the G1 nucleus.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"61 5","pages":"963-965"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13DOI: 10.1016/j.devcel.2026.04.007
Johanna M Gorol, Florian R Greten
{"title":"CD155-CD96 keeps quiescent persister tumor cells in check.","authors":"Johanna M Gorol, Florian R Greten","doi":"10.1016/j.devcel.2026.04.007","DOIUrl":"10.1016/j.devcel.2026.04.007","url":null,"abstract":"<p><p>In this issue of Developmental Cell, Geng et al. show that quiescent persister tumor cells (PTCs) in colorectal cancer are enriched after neoadjuvant chemotherapy and exhibit increased expression of CD155, leading to dysfunction of tumor-infiltrating CD96<sup>+</sup>CD8<sup>+</sup> T cells. Anti-tumor activity can be restored through CD96-targeted monoclonal antibody therapy.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"61 5","pages":"966-968"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13Epub Date: 2026-03-17DOI: 10.1016/j.devcel.2026.02.016
Konstantinos Stamatiou, Florentin Huguet, Marta Budzinska, Jose I de Las Heras, Denise Ragusa, Ines J deCastro, Christos Spanos, Juri Rappsilberg, Paola Vagnarelli
{"title":"Multi-omic analyses reveal a differential contribution of chromatin-associated PP1 holoenzymes to mitotic exit and G1 re-establishment.","authors":"Konstantinos Stamatiou, Florentin Huguet, Marta Budzinska, Jose I de Las Heras, Denise Ragusa, Ines J deCastro, Christos Spanos, Juri Rappsilberg, Paola Vagnarelli","doi":"10.1016/j.devcel.2026.02.016","DOIUrl":"10.1016/j.devcel.2026.02.016","url":null,"abstract":"<p><p>Mitotic exit is an important part of the cell cycle, requiring the coordination of many chromatin and cytoskeleton remodeling events to successfully complete cell division and maintain cell identity. Protein dephosphorylation is a key step in directing mitotic exit, and protein phosphatase 1 (PP1) is essential to this process; however, the specific contribution of its numerous targeting subunits is still unknown. Here, we have investigated the function of three chromatin-associated PP1-targeting subunits in mitosis exit: Repo-Man, Ki-67, and protein phosphatase 1 nuclear targeting subunit (PNUTS). We generated endogenously tagged, auxin-degradable alleles for each subunit in the human cell line HCT116 and used a multi-omic approach to address their specific contributions toward transcription resumption, chromatin accessibility, and protein dephosphorylation at the transition from mitosis to G1. This approach identified their distinct role in mitotic exit, provided datasets for the cell-cycle community, and highlighted functions for Ki-67 and Repo-Man in genome stability and organization.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":" ","pages":"1127-1145.e8"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147480052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13DOI: 10.1016/j.devcel.2026.04.008
Hannah Weber, Birgit Kemmerling
{"title":"Additional layers of systemic plant immunity: Apoplastic pH and uORF peptides.","authors":"Hannah Weber, Birgit Kemmerling","doi":"10.1016/j.devcel.2026.04.008","DOIUrl":"10.1016/j.devcel.2026.04.008","url":null,"abstract":"<p><p>Plants coordinate systemic immunity through mobile signals that prime distal tissues for enhanced defense. Two recent studies show that an upstream ORF-encoded peptide induces systemic stomatal closure, whereas apoplastic alkalinization enhances immune responsiveness, revealing complementary, systemic acquired resistance-independent mechanisms that integrate peptide signaling and extracellular pH dynamics.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"61 5","pages":"973-975"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13DOI: 10.1016/j.devcel.2026.04.010
Nikki K Lytle, Laura D Wood
{"title":"The want for Wnt: Pancreatic cancer assembles a self-sustaining Wnt-signaling ecosystem.","authors":"Nikki K Lytle, Laura D Wood","doi":"10.1016/j.devcel.2026.04.010","DOIUrl":"10.1016/j.devcel.2026.04.010","url":null,"abstract":"<p><p>In this issue of Developmental Cell, Torborg et al. identify cooperative Wnt signaling between pancreatic cancer cells that is heterogeneous, spatially organized, and required for tumor growth. These results have important implications for our understanding of pancreatic cancer vulnerabilities as well as future treatment approaches targeting the Wnt pathway.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"61 5","pages":"971-972"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-05-13DOI: 10.1016/j.devcel.2026.03.011
Rajini Chandrasegaram, Sara Gottardo, Abhilesh Dhawanjewar, Antony M Hynes-Allen, Beitong Gao, Suvagata Roy Chowdhury, Luis-Carlos Tábara, Michele Frison, Stavroula Petridi, Patrick F Chinnery, Julien Prudent, Hansong Ma, Jelle van den Ameele
{"title":"Single-molecule mitochondrial DNA imaging reveals heteroplasmy dynamics shaped by developmental bottlenecks and selection in vivo.","authors":"Rajini Chandrasegaram, Sara Gottardo, Abhilesh Dhawanjewar, Antony M Hynes-Allen, Beitong Gao, Suvagata Roy Chowdhury, Luis-Carlos Tábara, Michele Frison, Stavroula Petridi, Patrick F Chinnery, Julien Prudent, Hansong Ma, Jelle van den Ameele","doi":"10.1016/j.devcel.2026.03.011","DOIUrl":"10.1016/j.devcel.2026.03.011","url":null,"abstract":"<p><p>Mitochondrial DNA (mtDNA) exists in many copies per cell, with cell-to-cell variability in mutation load, which is known as heteroplasmy. Developmental and age-related expansion of heteroplasmic mtDNA mutations contributes to the pathogenesis of mitochondrial and neurodegenerative diseases. Here, we describe an approach for in situ sequence-specific detection of single mtDNA molecules (mtDNA-single-molecule fluorescent in situ hybridization [smFISH]). We apply this method to visualize and measure mtDNA and heteroplasmy levels in situ at single-cell resolution in whole-mount Drosophila tissue and cultured human cells. In Drosophila, we identify a somatic mtDNA bottleneck during neurogenesis. This amplifies heteroplasmy variability between neurons, as predicted by a mathematical bottleneck model, predisposing individual neurons to a high mutation load. However, both during neurogenesis and oogenesis, mtDNA segregation is accompanied by purifying selection, promoting wild-type (WT) over pathogenic mtDNA. mtDNA-smFISH thus elucidates how developmental cell-fate transitions, accompanied by changes in cell morphology, behavior, and metabolism, can shape the transmission and selection of deleterious mtDNA variants.</p>","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"61 5","pages":"1146-1161.e8"},"PeriodicalIF":9.2,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7619573/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-04-21DOI: 10.1016/j.devcel.2026.03.010
Silvia Campanario, Mercedes Grima-Terrén, Megan Rommelfanger, Stefania Dell’ Orso, Xuesong Feng, Andrés Cisneros, Ignacio Ramírez-Pardo, Aina Calls-Cobos, Benjamin A. Yang, Kyung Dae Ko, Esther García-Domínguez, Laura Pena-Couso, Grace Chou, Yuewen Zheng, Nasun Hah, Davide Randazzo, Alberto Pérez-Garcia, Tovah E. Markowitz, Jose Milisenda, Iago Pinal-Fernandez, Pura Muñoz-Cánoves
{"title":"A skeletal muscle atlas shows neuromuscular junction adaptations to growth and atrophy","authors":"Silvia Campanario, Mercedes Grima-Terrén, Megan Rommelfanger, Stefania Dell’ Orso, Xuesong Feng, Andrés Cisneros, Ignacio Ramírez-Pardo, Aina Calls-Cobos, Benjamin A. Yang, Kyung Dae Ko, Esther García-Domínguez, Laura Pena-Couso, Grace Chou, Yuewen Zheng, Nasun Hah, Davide Randazzo, Alberto Pérez-Garcia, Tovah E. Markowitz, Jose Milisenda, Iago Pinal-Fernandez, Pura Muñoz-Cánoves","doi":"10.1016/j.devcel.2026.03.010","DOIUrl":"https://doi.org/10.1016/j.devcel.2026.03.010","url":null,"abstract":"The molecular basis underlying muscle atrophy, as it occurs during disuse or aging, and activity-induced hypertrophy remain poorly understood. A major challenge has been defining the diverse cellular and niche environments within skeletal muscle, which is mostly composed of multinucleated myofibers. Here, we present a single-nucleus and single-cell transcriptomic atlas, coupled with spatial profiling, of mouse limb skeletal muscle under resting conditions and during experimentally induced atrophy or hypertrophy. We identify condition-dependent shifts in muscle-resident cell populations and fiber-type-specific transcriptional responses. We also uncover extensive remodeling of the neuromuscular junction (NMJ), including the emergence of specialized synaptic myonuclei (SynM) and terminal Schwann cells (tSCs) associated with atrophic or hypertrophic states. High-resolution 3D imaging and spatial transcriptomics confirm these changes at the tissue level. Similar NMJ alterations are observed in denervated and exercised human muscle, supporting the translational relevance of this atlas for studying muscle plasticity and identifying therapeutic targets in muscle-related diseases.","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"136 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147726414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developmental cellPub Date : 2026-04-13DOI: 10.1016/j.devcel.2026.03.008
Irene Basili, Francesca Bufalieri, Marilisa Conenna, Shirin Navacci, Yue-Ru Li, Jacob Torrejon, Flavia Bernardi, Ludovica Lospinoso Severini, Veronique Marsaud, Gabriele Cancila, Guillaume Bourmeau, Hua Yu, Valentina Lo Re, Julie Talbot, Gennaro Adabbo, Alberico Di Pinto, Francesca Agnoli, Daniela Giovannini, Simona Leonardi, Rosa Bordone, Lucia Di Marcotullio
{"title":"AMBRA1 enhances Sonic Hedgehog signaling during cerebellar development and in medulloblastoma","authors":"Irene Basili, Francesca Bufalieri, Marilisa Conenna, Shirin Navacci, Yue-Ru Li, Jacob Torrejon, Flavia Bernardi, Ludovica Lospinoso Severini, Veronique Marsaud, Gabriele Cancila, Guillaume Bourmeau, Hua Yu, Valentina Lo Re, Julie Talbot, Gennaro Adabbo, Alberico Di Pinto, Francesca Agnoli, Daniela Giovannini, Simona Leonardi, Rosa Bordone, Lucia Di Marcotullio","doi":"10.1016/j.devcel.2026.03.008","DOIUrl":"https://doi.org/10.1016/j.devcel.2026.03.008","url":null,"abstract":"AMBRA1 (autophagy and beclin 1 regulator 1) is primarily recognized as a tumor suppressor. However, its role as a tumor promoter has garnered increasing attention. Here, leveraging clinical data of an international multi-omic medulloblastoma (MB) cohort, we identified that elevated AMBRA1 protein levels, independently of its mRNA expression, correlate with poor prognosis in the Sonic Hedgehog subgroup (MB<sub>SHH</sub>). Mechanistically, AMBRA1 enhances SHH signaling by stabilizing GLI1, the pathway’s final effector, via inhibition of its βTrCP-mediated degradation. Additionally, AMBRA1 protein stability is modulated by the REN E3 ubiquitin ligase, a tumor suppressor gene lost in MB<sub>SHH</sub>. Inhibition of AMBRA1 blocks MB<sub>SHH</sub> growth in murine and patient-derived preclinical models. Moreover, combining <em>AMBRA1</em> knockdown with FDA-approved SHH inhibitors enhances antitumor efficacy. These findings identify the AMBRA1/βTrCP/REN axis as a key regulatory mechanism in SHH signaling and discover an unrecognized function of AMBRA1 in MB<sub>SHH</sub>, providing actionable insights into brain tumor biology.","PeriodicalId":11157,"journal":{"name":"Developmental cell","volume":"5 1","pages":""},"PeriodicalIF":11.8,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147666430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}