Pub Date : 2025-08-20DOI: 10.1016/S1016-8478(25)00091-3
{"title":"Cover and caption","authors":"","doi":"10.1016/S1016-8478(25)00091-3","DOIUrl":"10.1016/S1016-8478(25)00091-3","url":null,"abstract":"","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 9","pages":"Article 100267"},"PeriodicalIF":6.5,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-14DOI: 10.1016/j.mocell.2025.100265
Jee Yoon Bang , Yongjin Yoo
Microglial biology in Alzheimer’s disease (AD) has become a major focus of investigation, aiming to define how these cells contribute to neurodegeneration and to develop new therapeutic strategies. Once regarded as passive responders, microglia are now recognized as active regulators of brain homeostasis, immune signaling, and synaptic remodeling. Their interactions with genetic risk variants and age-related changes are increasingly understood to play central roles in AD pathogenesis. In this mini-review, we summarize recent progress in identifying microglial contributions to AD through genetic and transcriptomic studies. We discuss how microglia respond to amyloid-β and tau pathology by shifting into diverse functional disease-associated states, which may either protect or harm the brain depending on context and disease stage. We also outline the rationale for targeting microglia through replacement strategies and review emerging approaches using circulation-derived myeloid cells (CDMCs), and human pluripotent stem cell–derived microglia-like cells. These replacement methods have shown potential to rectify microglial functions and modify AD-related pathology in preclinical models, offering a novel therapeutic direction for neurodegenerative diseases.
{"title":"Rationale and emerging evidence for microglial replacement in Alzheimer’s disease","authors":"Jee Yoon Bang , Yongjin Yoo","doi":"10.1016/j.mocell.2025.100265","DOIUrl":"10.1016/j.mocell.2025.100265","url":null,"abstract":"<div><div>Microglial biology in Alzheimer’s disease (AD) has become a major focus of investigation, aiming to define how these cells contribute to neurodegeneration and to develop new therapeutic strategies. Once regarded as passive responders, microglia are now recognized as active regulators of brain homeostasis, immune signaling, and synaptic remodeling. Their interactions with genetic risk variants and age-related changes are increasingly understood to play central roles in AD pathogenesis. In this mini-review, we summarize recent progress in identifying microglial contributions to AD through genetic and transcriptomic studies. We discuss how microglia respond to amyloid-β and tau pathology by shifting into diverse functional disease-associated states, which may either protect or harm the brain depending on context and disease stage. We also outline the rationale for targeting microglia through replacement strategies and review emerging approaches using circulation-derived myeloid cells (CDMCs), and human pluripotent stem cell–derived microglia-like cells. These replacement methods have shown potential to rectify microglial functions and modify AD-related pathology in preclinical models, offering a novel therapeutic direction for neurodegenerative diseases.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 10","pages":"Article 100265"},"PeriodicalIF":6.5,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144862338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-06DOI: 10.1016/j.mocell.2025.100264
Yawen Jiang , Ligang Zhang , Yuandong Lin , Xiangxing Zhu , Tao Wang , Zhu Zhu , Yingshan Chen , Dongsheng Tang
Ferroptosis is an iron-dependent and regulated form of cell death, characterized by lipid peroxidation and oxidative stress. The progressive development of pulmonary fibrosis (PF) is closely linked to the ferroptosis pathway. Although the underlying mechanisms remain incompletely defined, this field has drawn intense research attention. Notable progress has been made in identifying ferroptosis-related metabolic pathways and key targets during PF development. In this review, we first summarize the basic regulation of iron metabolism in the human lung, iron metabolic imbalance, and the activation of ferroptosis. Second, we focus on elaborating the mechanistic connections between ferroptosis and PF, encompassing the clinical features, pathological manifestations, and core pathogenic mechanisms of PF, as well as the interplay between ferroptosis and 3 specific cell types in PF: alveolar epithelial cells, macrophages, and fibroblasts. Third, the research progress in the pharmacotherapy of PF is categorized into 3 categories: drugs already approved for PF and those under clinical trials; ferroptosis-targeted therapeutic strategies, including inhibitors, natural compounds, gene therapy, and combination strategies. This review, grounded in key metabolic pathways and therapeutic targets, systematically explores the complex relationships among iron metabolic disorders, ferroptosis, and PF progression. Our aim is to provide a theoretical and practical foundation for ferroptosis-targeted PF treatment.
{"title":"Iron metabolism dysregulation and ferroptosis: Emerging drivers in pulmonary fibrosis pathogenesis and therapy","authors":"Yawen Jiang , Ligang Zhang , Yuandong Lin , Xiangxing Zhu , Tao Wang , Zhu Zhu , Yingshan Chen , Dongsheng Tang","doi":"10.1016/j.mocell.2025.100264","DOIUrl":"10.1016/j.mocell.2025.100264","url":null,"abstract":"<div><div>Ferroptosis is an iron-dependent and regulated form of cell death, characterized by lipid peroxidation and oxidative stress. The progressive development of pulmonary fibrosis (PF) is closely linked to the ferroptosis pathway. Although the underlying mechanisms remain incompletely defined, this field has drawn intense research attention. Notable progress has been made in identifying ferroptosis-related metabolic pathways and key targets during PF development. In this review, we first summarize the basic regulation of iron metabolism in the human lung, iron metabolic imbalance, and the activation of ferroptosis. Second, we focus on elaborating the mechanistic connections between ferroptosis and PF, encompassing the clinical features, pathological manifestations, and core pathogenic mechanisms of PF, as well as the interplay between ferroptosis and 3 specific cell types in PF: alveolar epithelial cells, macrophages, and fibroblasts. Third, the research progress in the pharmacotherapy of PF is categorized into 3 categories: drugs already approved for PF and those under clinical trials; ferroptosis-targeted therapeutic strategies, including inhibitors, natural compounds, gene therapy, and combination strategies. This review, grounded in key metabolic pathways and therapeutic targets, systematically explores the complex relationships among iron metabolic disorders, ferroptosis, and PF progression. Our aim is to provide a theoretical and practical foundation for ferroptosis-targeted PF treatment.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 10","pages":"Article 100264"},"PeriodicalIF":6.5,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144804373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-05DOI: 10.1016/j.mocell.2025.100263
Jamin Ku , Eunjin Jeong , Jeong-Ryeol Gong , Kwang-Hyun Cho , Chang Ohk Sung , Seok-Hyung Kim
While tumor-restraining cancer-associated fibroblasts (Tr-CAFs) have been investigated in various cancers, their existence in colorectal cancer remains unexplored. We performed a comprehensive analysis of diverse colorectal cancer datasets, including single-cell RNA-seq/ATAC-seq data from colorectal samples, TCGA RNA-seq, and histological samples. We identified a fibroblast subpopulation uniquely expressing ADAMDEC1, CXCL14, EDNRB, and PROCR, strongly associated with favorable patient outcomes, implicating their role as Tr-CAFs. Pseudotime trajectory analysis suggested these cells as terminally differentiated mucosal fibroblasts. Pathway analysis indicated that this subpopulation was significantly associated with tumor-suppressive functions, such as reduced extracellular matrix secretion, augmented immune response, and enhanced responsiveness to immunotherapy. Single-cell ATAC-seq analysis revealed that this putative Tr-CAF subset exhibited unique epigenetic profiles characterized by superenhancer-regulated tumor-suppressive genes, thereby supporting its identity as a stable lineage rather than a transient phenotypic state induced by external stimuli. Immunohistochemistry showed that key markers identifying this putative Tr-CAF subset—CXCL14, ADAMDEC1, EDNRB, and PROCR—were predominantly localized to fibroblasts within normal colonic mucosa and less frequently in cancer-associated fibroblasts (CAFs). Their expression levels exhibited statistically significant associations with favorable clinicopathological indicators, including prolonged disease-free survival. Notably, ADAMDEC1 expression in CAFs was significantly correlated with T-cell infiltration within the tumor microenvironment. In conclusion, our investigation elucidates the characteristics and clinical relevance of Tr-CAFs in colorectal cancer, suggesting novel avenues for targeted anti-CAF therapy.
{"title":"Identification of a unique subpopulation of mucosal fibroblasts in colorectal cancer with tumor-restraining characteristics","authors":"Jamin Ku , Eunjin Jeong , Jeong-Ryeol Gong , Kwang-Hyun Cho , Chang Ohk Sung , Seok-Hyung Kim","doi":"10.1016/j.mocell.2025.100263","DOIUrl":"10.1016/j.mocell.2025.100263","url":null,"abstract":"<div><div>While tumor-restraining cancer-associated fibroblasts (Tr-CAFs) have been investigated in various cancers, their existence in colorectal cancer remains unexplored. We performed a comprehensive analysis of diverse colorectal cancer datasets, including single-cell RNA-seq/ATAC-seq data from colorectal samples, TCGA RNA-seq, and histological samples. We identified a fibroblast subpopulation uniquely expressing ADAMDEC1, CXCL14, EDNRB, and PROCR, strongly associated with favorable patient outcomes, implicating their role as Tr-CAFs. Pseudotime trajectory analysis suggested these cells as terminally differentiated mucosal fibroblasts. Pathway analysis indicated that this subpopulation was significantly associated with tumor-suppressive functions, such as reduced extracellular matrix secretion, augmented immune response, and enhanced responsiveness to immunotherapy. Single-cell ATAC-seq analysis revealed that this putative Tr-CAF subset exhibited unique epigenetic profiles characterized by superenhancer-regulated tumor-suppressive genes, thereby supporting its identity as a stable lineage rather than a transient phenotypic state induced by external stimuli. Immunohistochemistry showed that key markers identifying this putative Tr-CAF subset—CXCL14, ADAMDEC1, EDNRB, and PROCR—were predominantly localized to fibroblasts within normal colonic mucosa and less frequently in cancer-associated fibroblasts (CAFs). Their expression levels exhibited statistically significant associations with favorable clinicopathological indicators, including prolonged disease-free survival. Notably, ADAMDEC1 expression in CAFs was significantly correlated with T-cell infiltration within the tumor microenvironment. In conclusion, our investigation elucidates the characteristics and clinical relevance of Tr-CAFs in colorectal cancer, suggesting novel avenues for targeted anti-CAF therapy.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 10","pages":"Article 100263"},"PeriodicalIF":6.5,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144784856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-28DOI: 10.1016/j.mocell.2025.100262
Jing Zhang , Seong Eun Lee , Jiyeon Yoon , Bon Jeong Ku , Junyoung O. Park , Da Hyun Kang , Jun Young Heo , Yea Eun Kang
Serine hydroxymethyltransferase (SHMT) is a key enzyme in 1-carbon metabolism, a biochemical pathway critical for cellular growth, proliferation, and survival. One-carbon metabolism integrates the folate and methionine cycles to produce essential intermediates necessary for nucleotide synthesis, methylation reactions, and redox homeostasis. SHMT exists in 2 isoforms, SHMT1, which is localized in the cytoplasm, and SHMT2, which is localized in the mitochondria. SHMT1 and SHMT2 have distinct yet complementary functions. Both are involved in serine and glycine metabolism, ensuring a continuous supply of the 1-carbon units required for biosynthetic and epigenetic processes. SHMT dysregulation has been implicated in cancer progression and metabolic disorders, including cardiovascular diseases, diabetes, and neurological abnormalities. In cancer, the abnormal expression of SHMT has been associated with tumor growth, metabolic reprogramming, and treatment resistance, and has also been shown to correlate with poor patient outcomes. Considering its critical role in both cancer and metabolic diseases, SHMT has emerged as a potential therapeutic target in cancer. Recent studies have shown that SHMT inhibitors can reduce tumor proliferation and restore metabolic homeostasis. This review provides a comprehensive overview of the role of SHMT in the regulation of metabolic pathways and its role in tumor progression and metabolic diseases. In this review, we aimed to highlight the therapeutic potential of targeting SHMT and offer insights into the development of innovative treatment strategies in oncology and metabolic medicine. These insights support the hypothesis that targeting SHMT, particularly isoform-specific inhibition, may provide novel therapeutic avenues in both oncology and metabolic medicine.
{"title":"Multifaceted role of serine hydroxymethyltransferase in health and disease","authors":"Jing Zhang , Seong Eun Lee , Jiyeon Yoon , Bon Jeong Ku , Junyoung O. Park , Da Hyun Kang , Jun Young Heo , Yea Eun Kang","doi":"10.1016/j.mocell.2025.100262","DOIUrl":"10.1016/j.mocell.2025.100262","url":null,"abstract":"<div><div>Serine hydroxymethyltransferase (SHMT) is a key enzyme in 1-carbon metabolism, a biochemical pathway critical for cellular growth, proliferation, and survival. One-carbon metabolism integrates the folate and methionine cycles to produce essential intermediates necessary for nucleotide synthesis, methylation reactions, and redox homeostasis. SHMT exists in 2 isoforms, SHMT1, which is localized in the cytoplasm, and SHMT2, which is localized in the mitochondria. SHMT1 and SHMT2 have distinct yet complementary functions. Both are involved in serine and glycine metabolism, ensuring a continuous supply of the 1-carbon units required for biosynthetic and epigenetic processes. SHMT dysregulation has been implicated in cancer progression and metabolic disorders, including cardiovascular diseases, diabetes, and neurological abnormalities. In cancer, the abnormal expression of SHMT has been associated with tumor growth, metabolic reprogramming, and treatment resistance, and has also been shown to correlate with poor patient outcomes. Considering its critical role in both cancer and metabolic diseases, SHMT has emerged as a potential therapeutic target in cancer. Recent studies have shown that SHMT inhibitors can reduce tumor proliferation and restore metabolic homeostasis. This review provides a comprehensive overview of the role of SHMT in the regulation of metabolic pathways and its role in tumor progression and metabolic diseases. In this review, we aimed to highlight the therapeutic potential of targeting SHMT and offer insights into the development of innovative treatment strategies in oncology and metabolic medicine. These insights support the hypothesis that targeting SHMT, particularly isoform-specific inhibition, may provide novel therapeutic avenues in both oncology and metabolic medicine.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 9","pages":"Article 100262"},"PeriodicalIF":6.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144753855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-18DOI: 10.1016/S1016-8478(25)00082-2
{"title":"Cover and caption","authors":"","doi":"10.1016/S1016-8478(25)00082-2","DOIUrl":"10.1016/S1016-8478(25)00082-2","url":null,"abstract":"","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 8","pages":"Article 100258"},"PeriodicalIF":3.7,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144657190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-11DOI: 10.1016/j.mocell.2025.100254
Hyun-Oh Gu , Seung Wan Noh , Ok-Hee Kim , Byung-Chul Oh
Calcium (Ca²⁺) serves as a pivotal intracellular messenger, influencing a diverse array of cellular processes, including muscle contraction, neurotransmission, and hormone secretion. It also plays a critical role in the regulation of gene expression. Intracellular Ca²⁺ levels are stringently controlled and maintained within a narrow physiological range, primarily by plasma membrane Ca2+-ATPases, sarco-/endoplasmic reticulum Ca2+-ATPases, and secretory pathway Ca2+-ATPases. These ATPases orchestrate the influx, efflux, and sequestration of Ca²⁺ across cellular compartments, thereby ensuring cellular functionality and survival. This review delves into the intricate interplay between Ca²⁺ and phosphoinositides, essential lipid signaling molecules that modulate Ca2+-ATPase activities and link Ca²⁺ signaling to a wide range of cellular functions. By examining the molecular dynamics of Ca2+-ATPases and their regulatory interactions with phosphoinositides, we discuss their roles under both physiological and pathological conditions, highlighting how disturbances in these interactions contribute to disease. Furthermore, we explore the potential of targeting these Ca²⁺ regulatory mechanisms as a therapeutic strategy for diseases characterized by Ca²⁺ dysregulation, providing insights into future research directions and clinical applications.
{"title":"Crucial roles of calcium ATPases and phosphoinositides: Insights into pathophysiology and therapeutic strategies","authors":"Hyun-Oh Gu , Seung Wan Noh , Ok-Hee Kim , Byung-Chul Oh","doi":"10.1016/j.mocell.2025.100254","DOIUrl":"10.1016/j.mocell.2025.100254","url":null,"abstract":"<div><div>Calcium (Ca²⁺) serves as a pivotal intracellular messenger, influencing a diverse array of cellular processes, including muscle contraction, neurotransmission, and hormone secretion. It also plays a critical role in the regulation of gene expression. Intracellular Ca²⁺ levels are stringently controlled and maintained within a narrow physiological range, primarily by plasma membrane Ca<sup>2+</sup>-ATPases, sarco-/endoplasmic reticulum Ca<sup>2+</sup>-ATPases, and secretory pathway Ca<sup>2+</sup>-ATPases. These ATPases orchestrate the influx, efflux, and sequestration of Ca²⁺ across cellular compartments, thereby ensuring cellular functionality and survival. This review delves into the intricate interplay between Ca²⁺ and phosphoinositides, essential lipid signaling molecules that modulate Ca<sup>2+</sup>-ATPase activities and link Ca²⁺ signaling to a wide range of cellular functions. By examining the molecular dynamics of Ca<sup>2+</sup>-ATPases and their regulatory interactions with phosphoinositides, we discuss their roles under both physiological and pathological conditions, highlighting how disturbances in these interactions contribute to disease. Furthermore, we explore the potential of targeting these Ca²⁺ regulatory mechanisms as a therapeutic strategy for diseases characterized by Ca²⁺ dysregulation, providing insights into future research directions and clinical applications.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 9","pages":"Article 100254"},"PeriodicalIF":6.5,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144626726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-07DOI: 10.1016/j.mocell.2025.100253
Xiang Li , Bo Chen , Jiajing Zhou , Chunling Li , Yue Yu , Erdi Zhao , Xingli Wu , Changzhu Jin , Minjing Li , Jiankai Feng , Leilei Lin , Yancun Yin
CD84, a member of the signaling lymphocyte activation molecule immunoglobulin superfamily, has been identified as playing a significant role in regulating various immune cell activities. However, its intrinsic role in cancer cells remains largely unknown. We aim to explore the direct role of CD84 in acute myeloid leukemia (AML) progression and to clarify the underlying molecular mechanisms involved in nonhomologous end-joining (NHEJ) repair. Herein, we found that CD84 is frequently upregulated in various types of AML and leukemia initiation cells (LICs)-enriched cells. Knockdown or blocking of CD84 significantly inhibits the growth and induces the apoptosis of AML cells. Moreover, knockdown of CD84 significantly delays AML progression and prolongs the survival of the xenografted mice in vivo. Mechanistically, CD84 promotes the expression of NHEJ core factors by recruiting SAP and activating the AKT signaling pathway. Knockdown of CD84 inhibits NHEJ repair in AML cells via regulating the expression of NHEJ core factors, including PRKDC, LIG4, XRCC5, and DCLRE1C. Subsequently, this leads to double-strand breaks accumulation and cell apoptosis. Importantly, CD84 is required for the proliferation and self-renewal of human LICs. In conclusion, CD84 plays important roles in AML growth and progression through promoting NHEJ repair. Targeting CD84 may be a potential approach for inhibiting AML development and eliminating LICs.
{"title":"Tumor-derived CD84 promotes growth of acute myeloid leukemia cells via regulating nonhomologous DNA end-joining pathway","authors":"Xiang Li , Bo Chen , Jiajing Zhou , Chunling Li , Yue Yu , Erdi Zhao , Xingli Wu , Changzhu Jin , Minjing Li , Jiankai Feng , Leilei Lin , Yancun Yin","doi":"10.1016/j.mocell.2025.100253","DOIUrl":"10.1016/j.mocell.2025.100253","url":null,"abstract":"<div><div>CD84, a member of the signaling lymphocyte activation molecule immunoglobulin superfamily, has been identified as playing a significant role in regulating various immune cell activities. However, its intrinsic role in cancer cells remains largely unknown. We aim to explore the direct role of CD84 in acute myeloid leukemia (AML) progression and to clarify the underlying molecular mechanisms involved in nonhomologous end-joining (NHEJ) repair. Herein, we found that CD84 is frequently upregulated in various types of AML and leukemia initiation cells (LICs)-enriched cells. Knockdown or blocking of CD84 significantly inhibits the growth and induces the apoptosis of AML cells. Moreover, knockdown of <em>CD84</em> significantly delays AML progression and prolongs the survival of the xenografted mice in vivo. Mechanistically, CD84 promotes the expression of NHEJ core factors by recruiting SAP and activating the AKT signaling pathway. Knockdown of <em>CD84</em> inhibits NHEJ repair in AML cells via regulating the expression of NHEJ core factors, including <em>PRKDC</em>, <em>LIG4</em>, <em>XRCC5</em>, and <em>DCLRE1C.</em> Subsequently, this leads to double-strand breaks accumulation and cell apoptosis. Importantly, CD84 is required for the proliferation and self-renewal of human LICs. In conclusion, CD84 plays important roles in AML growth and progression through promoting NHEJ repair. Targeting CD84 may be a potential approach for inhibiting AML development and eliminating LICs.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 9","pages":"Article 100253"},"PeriodicalIF":3.7,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144601023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-04DOI: 10.1016/j.mocell.2025.100252
Youbong Hyun
Cyclotides are a group of plant-derived small peptides, characterized by a head-to-tail cyclic backbone and 3 conserved cysteine knots. The unique structure endows cyclotides with exceptional chemical stability and intrinsic cell-penetrating capacities, allowing them to serve as orally active agents for host defense. These properties also position cyclotides as ideal scaffolds for the design of novel edible drugs. This review provides a comprehensive overview of the discovery, distribution, and evolutionary divergence of cyclotides in flowering plants, while also discussing their classification and applications in structure-based engineering for various purposes. Additionally, recent advancements in the biological and pharmaceutical activities of both naturally occurring and synthetic “designer” cyclotides are summarized. The complexities of the cyclotide biosynthetic pathway have posed challenges for their synthesis in non-native organisms. Thus, the article concludes by exploring the latest strategies for large-scale cyclotide production in plants, highlighting Viola species as rich sources for future cyclotide engineering.
{"title":"Cyclotides as novel plant-derived scaffolds for orally active cyclic peptide therapeutics","authors":"Youbong Hyun","doi":"10.1016/j.mocell.2025.100252","DOIUrl":"10.1016/j.mocell.2025.100252","url":null,"abstract":"<div><div>Cyclotides are a group of plant-derived small peptides, characterized by a head-to-tail cyclic backbone and 3 conserved cysteine knots. The unique structure endows cyclotides with exceptional chemical stability and intrinsic cell-penetrating capacities, allowing them to serve as orally active agents for host defense. These properties also position cyclotides as ideal scaffolds for the design of novel edible drugs. This review provides a comprehensive overview of the discovery, distribution, and evolutionary divergence of cyclotides in flowering plants, while also discussing their classification and applications in structure-based engineering for various purposes. Additionally, recent advancements in the biological and pharmaceutical activities of both naturally occurring and synthetic “designer” cyclotides are summarized. The complexities of the cyclotide biosynthetic pathway have posed challenges for their synthesis in non-native organisms. Thus, the article concludes by exploring the latest strategies for large-scale cyclotide production in plants, highlighting <em>Viola</em> species as rich sources for future cyclotide engineering.</div></div>","PeriodicalId":18795,"journal":{"name":"Molecules and Cells","volume":"48 9","pages":"Article 100252"},"PeriodicalIF":3.7,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}