Animal Cells and SystemsPub Date : 2025-09-15eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2542162
Eunji Im, Jinah Ha, Jeongha Kim, Hyunwon Yang
{"title":"Differential effects of nesfatin-1 on proliferation and migration in normal and cancerous human lung cells via the PI3K/AKT pathway.","authors":"Eunji Im, Jinah Ha, Jeongha Kim, Hyunwon Yang","doi":"10.1080/19768354.2025.2542162","DOIUrl":"10.1080/19768354.2025.2542162","url":null,"abstract":"<p><p>Nesfatin-1, initially identified as an appetite-regulating hormone, has also been detected in various cancer tissues and implicated in tumorigenesis. However, its role in the proliferation and migration of lung cancer cells remains unclear. This study aims to investigate the effects of nesfatin-1 on the proliferation and migration of human lung cancer cells and elucidate the underlying molecular mechanisms. The expression of nesfatin-1 protein and NUCB2 mRNA was detected in the immortalized normal human bronchial cell line BEAS-2B and the non-small-cell lung cancer cell line H1299. Immunohistochemical staining revealed the localization of nesfatin-1 binding sites in both cell lines. Nesfatin-1 treatment significantly increased the proliferation and migration of BEAS-2B cells but not of H1299 cells. The expression levels of cell proliferation-related genes, such as TGFα, PXN, MTOR, and CCND1, were upregulated in BEAS-2B cells, with no significant changes observed in H1299 cells. In addition, phosphorylation of FAK, PI3 K, and AKT was increased in BEAS-2B cells, whereas only FAK phosphorylation was increased in H1299 cells. To further assess the role of endogenous nesfatin-1, NUCB2 expression was silenced using small interfering RNA. Knockdown of NUCB2 suppressed proliferation and migration of BEAS-2B cells, as well as their expression of TGFα, PXN, MTOR, and CCND1; however, it had no significant effect on H1299 cells. These results suggest that nesfatin-1 promotes proliferation and migration in normal lung epithelial cells but not in lung cancer cells. Further research is needed to elucidate the molecular mechanisms underlying the differential effects of nesfatin-1 on normal and cancerous lung cells.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"570-583"},"PeriodicalIF":3.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12439810/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145079524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-08-28eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2548936
Jae Yeon Hwang
{"title":"A comparative study of capacitation-mediated changes in whole mouse sperm proteome.","authors":"Jae Yeon Hwang","doi":"10.1080/19768354.2025.2548936","DOIUrl":"10.1080/19768354.2025.2548936","url":null,"abstract":"<p><p>Mammalian spermatozoa acquire fertilizing ability in response to environmental factors enriched in the female reproductive tract, a process called capacitation. During capacitation, sperm undergo physiological changes that are accompanied by functional regulation of sperm proteins. However, the mechanism by which capacitation orchestrates sperm protein functions to modulate physiological characteristics remains unclear. Here, I analyzed capacitation-mediated global proteomic changes in mouse spermatozoa to unravel the underlying molecular association with the biological processes in sperm capacitation. I quantitatively compared 4,587 proteins identified by liquid chromatography-tandem mass spectrometry. Among them, the amounts of 47 and 180 proteins were reduced to over 1.5-fold (<i>p</i> < 0.05) and 1.3-fold (<i>p</i> < 0.1), respectively, and those of 11 and 60 proteins were increased over 1.5-fold (<i>p</i> < 0.05) and 1.3-fold (<i>p</i> < 0.1), respectively, in capacitated mouse sperm. Functional annotation of proteins reduced in capacitated sperm revealed that these proteins could be associated with lipid metabolism, RNA processing, and remodeling of the nuclear envelope structure. This result suggests that reactive oxygen species might be more generated for cholesterol efflux and the nucleus might undergo decondensation to form pronucleus in sperm during capacitation. In addition, functional annotation of proteins of which levels are increased in capacitated sperm represents that they could be involved in sperm structure. This study expands the molecular contribution to modulation of sperm functions and provides new insights into potential biological processes involving regulatory molecular machinery in capacitated sperm.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"556-569"},"PeriodicalIF":3.2,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12395628/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-08-25eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2548253
Jiwon Jeong, Sunjoo Jeong
{"title":"The RNA revolution in medicine: from gene regulation to clinical therapeutics.","authors":"Jiwon Jeong, Sunjoo Jeong","doi":"10.1080/19768354.2025.2548253","DOIUrl":"10.1080/19768354.2025.2548253","url":null,"abstract":"<p><p>Breakthrough discoveries in RNA biology have led to a paradigm shift in our understanding of RNA-from passive intermediates to active regulators of gene expression. Technological innovations and deeper insights into RNA regulation have transformed the field, positioning RNA as a powerful tool for therapeutic development. Recent advances in RNA technologies have revolutionized medicine by enabling the precise targeting of specific mRNAs to modulate aberrant transcripts, correct genetic defects, and reprogram cellular behavior. This review provides an overview of the coordinated regulation of mRNA processing and its application to RNA-based therapeutics, including antisense oligonucleotides (ASOs), splice-switching oligonucleotides (SSOs), small interfering RNAs (siRNAs), and Aptamers. We focus on clinically approved RNA therapeutics, emphasizing their biological mechanisms such as RNA stability and splicing regulation. The expanding repertoire of RNA technologies underscores the translational potential of RNA biology and its growing clinical impact. Future developments are expected to yield highly specific, modular, and programmable RNA medicines capable of treating a wide range of previously intractable diseases.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"523-543"},"PeriodicalIF":3.2,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12379706/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-08-22eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2549756
Hyemin Kim, Saebyeol Lee, Hak Kyun Kim, Sang-Kyu Park
{"title":"Xanthoxyline prevents aging and neuronal damage by activating autophagy and DAF-16 expression in <i>Caenorhabditis elegans</i>.","authors":"Hyemin Kim, Saebyeol Lee, Hak Kyun Kim, Sang-Kyu Park","doi":"10.1080/19768354.2025.2549756","DOIUrl":"10.1080/19768354.2025.2549756","url":null,"abstract":"<p><p>Xanthoxyline, a plant-derived phytochemical, has anti-bacterial, anti-fungal, and anti-cancer activities. We intended to investigate the effect of xanthoxyline on the response to oxidative stress, aging, and Parkinson's disease. The effects of dietary supplementation with xanthoxyline on stress response and aging were examined <i>in vivo</i> using <i>Caenorhabditis elegans</i> as a model system. Genetic analysis using mutants, RNAi, and quantitative RT-PCR was performed to identify underlying mechanism involved in xanthoxyline-induced longevity. Animal disease models were employed to examine the effect of xanthoxyline on Parkinson's disease. Xanthoxyline increased resistance to the oxidative stress induced by H<sub>2</sub>O<sub>2</sub>. The mean lifespan of worms was significantly increased by supplementation with xanthoxyline. The lifespan-extending activity of xanthoxyline was not accompanied by reduced fertility. Xanthoxyline delayed the age-related decline in motility. Interestingly, the expression of two longevity-assuring genes, <i>hsp-16.2</i>, and <i>sod-3</i>, was increased by xanthoxyline supplementation. Genetic analysis suggested that lifespan extension by xanthoxyline was mediated by activation of autophagy and required DAF-16. In a model of Parkinson's disease, degeneration of dopaminergic neurons was prevented by supplementation with xanthoxyline, in a manner dependent on DAF-16. Taken together, we concluded that xanthoxyline exerts an anti-aging activity, possibly by activating the DAF-16-dependent stress response, and reduces the risk of Parkinson's disease, in a manner mediated by DAF-16. Xanthoxyline shows promise for the development of novel nutraceuticals against aging and Parkinson's disease.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"544-555"},"PeriodicalIF":3.2,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12377130/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-08-11eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2542168
Jiyoon Seo, Seungyeon Ryu, Wei Zhang, Eun Kyung Lee, Seung Min Jeong
{"title":"RNA binding protein HuD regulates fatty acid oxidation in pancreatic β-cells by modulating long-chain acyl-CoA dehydrogenase expression.","authors":"Jiyoon Seo, Seungyeon Ryu, Wei Zhang, Eun Kyung Lee, Seung Min Jeong","doi":"10.1080/19768354.2025.2542168","DOIUrl":"10.1080/19768354.2025.2542168","url":null,"abstract":"<p><p>RNA binding proteins (RBPs) play crucial roles in the post-transcriptional regulation of metabolic pathways. Although the RBP HuD has been extensively studied in pancreatic β-cells, its role in cellular metabolism remains poorly understood. In this study, we uncover a novel function of HuD in regulating fatty acid oxidation (FAO) in mouse insulinoma βTC6 cells. Through genetic knockdown and overexpression approaches, we demonstrate that HuD modulates the expression of long-chain acyl-CoA dehydrogenase (LCAD), a key enzyme in FAO, by binding to the 3'-untranslated region of its mRNA. Loss of HuD impaired FAO, leading to lipid droplet accumulation, elevated reactive oxygen species production, and increased lipotoxicity under lipid-stress conditions. These findings reveal a previously unrecognized role for HuD in maintaining fatty acid homeostasis and suggest that the HuD-LCAD regulatory axis may represent a promising therapeutic target for preserving β-cell integrity and function.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"512-522"},"PeriodicalIF":3.2,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12340947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144833778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-08-04eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2542172
Enkhzul Amarsanaa, Jung-Min Oh, Seon Young Lee, Saikat Maiti, Sung You Hong, Kyungjae Myung
{"title":"Targeting MMR-deficient colorectal cancer with a potent small molecule UNI110.","authors":"Enkhzul Amarsanaa, Jung-Min Oh, Seon Young Lee, Saikat Maiti, Sung You Hong, Kyungjae Myung","doi":"10.1080/19768354.2025.2542172","DOIUrl":"10.1080/19768354.2025.2542172","url":null,"abstract":"<p><p>Mismatch repair (MMR) deficiency is a hallmark of microsatellite instability (MSI) in hereditary non-polyposis colorectal cancer, Lynch syndrome, contributing to resistance against conventional chemotherapy and posing a significant therapeutic challenge. In this study, we introduce UNI110, a novel small molecule derived from Baicalein, engineered for enhanced selectivity against MMR-deficient cancer cells. UNI110 exhibits a remarkable sevenfold increase in potency over Baicalein, demonstrating significantly lower IC50 values and heightened cytotoxic effects in MMR-deficient cell lines. Mechanistically, UNI110 selectively induces DNA damage in MMR-deficient cancer cells, ultimately resulting in cell death. Furthermore, UNI110 disrupts homologous recombination (HR) repair by inhibiting the MSH2-MSH3 complex, specifically blocking the interaction between MSH2 and EXO1, thereby impairing long-range end resection during double-strand break (DSB) repair. These findings establish UNI110 as a promising lead compound for the targeted treatment of MMR-deficient colorectal cancers, offering a potential breakthrough in overcoming chemotherapy resistance and improving patient outcomes.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"502-511"},"PeriodicalIF":3.2,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12326383/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144793296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-08-04eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2542176
Seungtae Moon, Nackhyuong Kim, A-Reum Kim, Kyeong Hwan Moon, Jin Woo Kim, Soo-Jong Um
{"title":"Asxl1 regulates optic cup development through interaction with Lhx2 and epigenetic modulation of Wnt signaling.","authors":"Seungtae Moon, Nackhyuong Kim, A-Reum Kim, Kyeong Hwan Moon, Jin Woo Kim, Soo-Jong Um","doi":"10.1080/19768354.2025.2542176","DOIUrl":"10.1080/19768354.2025.2542176","url":null,"abstract":"<p><p>The <i>additional sex combs-like 1</i> (<i>Asxl1</i>) gene is a chromatin regulator involved in transcriptional activation and repression. While Asxl1 plays a crucial role in various organ development, its role in ocular development remains unclear. Here, we analyzed <i>Asxl1</i> knockout (KO) mice and observed disrupted optic cup formation at embryonic day 10.5 (E10.5). RNA-seq of the E10.5 optic cup revealed dysregulation of Wnt signaling and early eye development genes. In further investigation using isolated cell from E10.5 retinal region, neuroepithelial stem cells from <i>Asxl1</i> KO embryos exhibited impaired proliferation and spheroid formation. To elucidate the transcriptional mechanism by Asxl1 in optic cup formation, biochemical assays demonstrated that Asxl1 binds the LIM domain of Lhx2, facilitating repression of Wnt1, Wnt2, and Wnt8b. Following ChIP analysis showed that the gain of function of Asxl1 increased repressive histone marks (H3K27me3, H3K9me3) and reduced active marks (H3K4me3) at Lhx2-binding motifs within the cis-regulatory regions of canonical Wnt ligand genes. These findings establish Asxl1 as a key epigenetic regulator of optic cup development by modulating Lhx2-mediated Wnt signaling, providing insights into congenital eye disorders.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"488-501"},"PeriodicalIF":3.2,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12322997/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144788081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Troponin I - a comprehensive review of its function, structure, evolution, and role in muscle diseases.","authors":"Dongju Han, Younghyun Lim, Soah Lee, Seong-Il Eyun","doi":"10.1080/19768354.2025.2533821","DOIUrl":"10.1080/19768354.2025.2533821","url":null,"abstract":"<p><p>The troponin complex is a critical component of thin filaments and plays an essential role in the calcium-mediated regulation of contraction and relaxation in striated muscles, including both cardiac and skeletal muscle. Troponin I, a subunit of this complex, inhibits actomyosin interactions during muscle relaxation. Its function is finely tuned by posttranslational modifications, particularly phosphorylation, which influence calcium sensitivity and actin affinity, thus impacting muscle contraction. Mutations in troponin I are closely associated with various human diseases. Specifically, several mutations in cardiac troponin I have been linked to cardiomyopathies, such as hypertrophic, dilated, and restrictive cardiomyopathies, which affect heart contractility and calcium handling. In this review, we explore the multifaceted aspects of troponin I, including its structure, functional role in muscle contraction, evolution, and the complex interactions between posttranslational modifications and genetic mutations that alter its function and contribute to disease progression.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"446-468"},"PeriodicalIF":3.2,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12305882/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-07-25eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2536022
Jiseok Lee, Bo-Ram Kim, Kyeoungtae Park, Eunbin Kim, Jin-Woo Jeong, Jung Jin Kim, Sung-Suk Suh, Jong Bae Seo
{"title":"<i>Zanthoxylum schinifolium</i> extracts enhance 3T3-L1 adipocyte differentiation via CHOP inhibition and PPARγ activation.","authors":"Jiseok Lee, Bo-Ram Kim, Kyeoungtae Park, Eunbin Kim, Jin-Woo Jeong, Jung Jin Kim, Sung-Suk Suh, Jong Bae Seo","doi":"10.1080/19768354.2025.2536022","DOIUrl":"10.1080/19768354.2025.2536022","url":null,"abstract":"<p><p><i>Zanthoxylum schinifolium</i> (ZS), which is widely used as a seasoning and traditional medicine in East Asia, has demonstrated pharmacological potential. This study investigated the effects of the leaf and twig extracts of ZS (LZSE and TZSE, respectively), which are native to the Honam region of Korea, on adipocyte differentiation and assessed the ligand-binding energy score of their components to bind peroxisome proliferator-activated receptor gamma (PPARγ), a critical regulator of adipogenesis and metabolic health. LZSE and TZSE were prepared using 70% ethanol, and their molecular effects on adipocyte differentiation were evaluated in 3T3-L1 preadipocytes. Single compounds from the extracts were identified using UPLC-ESI-Q-TOF-MS, and their ligand-binding energy scores were calculated via in silico molecular docking studies. PPARγ activity was further confirmed through reporter assays. LZSE and TZSE significantly promoted adipocyte differentiation, as demonstrated by morphological changes and the increased mRNA and protein levels of key adipogenic and lipogenic genes, such as PPARγ and CCAAT-enhancer-binding protein alpha (C/EBPα). LZSE specifically enhanced adipogenesis without inducing cytotoxicity, attributed to the inhibition of C/EBP homologous protein (CHOP) and stimulation of mitotic expansion. Additionally, UPLC-ESI-Q-TOF-MS identified several active compounds in LZSE and TZSE, and in silico docking revealed the high binding affinity of these compounds for the full-agonist ligand-binding domain of PPARγ. LZSE and TZSE could emerge as novel antidiabetic drug candidates based on their effects on adipocyte differentiation and PPARγ activation. Furthermore, the active compounds identified in these extracts hold promise as tentative PPARγ agonists, highlighting their therapeutic potential in the treatment of metabolic disorders.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"469-487"},"PeriodicalIF":3.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12302382/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Animal Cells and SystemsPub Date : 2025-07-16eCollection Date: 2025-01-01DOI: 10.1080/19768354.2025.2533823
Minjoo Kim, Hyun-Kyung Lee, Hongchan Lee, Hyun-Shik Lee
{"title":"Prdx6 regulates <i>in vivo</i> myeloid cell development via redox control during <i>Xenopus</i> embryogenesis.","authors":"Minjoo Kim, Hyun-Kyung Lee, Hongchan Lee, Hyun-Shik Lee","doi":"10.1080/19768354.2025.2533823","DOIUrl":"10.1080/19768354.2025.2533823","url":null,"abstract":"<p><p>Peroxiredoxin6 (Prdx6) is a bifunctional antioxidant enzyme with both peroxidase and phospholipase A₂ activities. Although its molecular roles are well established, the developmental role of Prdx6 remains poorly understood. To address this gap in the literature, this study aimed to examine the <i>in vivo</i> function of Prdx6 in primitive myelopoiesis using <i>Xenopus laevis</i> embryos. We found that <i>prdx6</i> is specifically expressed in myeloid progenitors originating from the anterior ventral blood island during early embryogenesis. Knockdown of <i>prdx6</i> significantly reduced the number of myeloid cells, without affecting their migration ability. Embryos depleted of <i>prdx6</i> exhibited elevated levels of reactive oxygen species (ROS) and decreased cellular proliferation. Co-injection of morpholino (MO)-resistant <i>prdx6</i> mRNA or treatment with N-acetylcysteine (NAC) successfully restored both ROS levels and myeloid cell numbers, suggesting that Prdx6 supports primitive myeloid cell development by maintaining redox homeostasis. These findings reveal a novel role of Prdx6 in ROS-dependent proliferation of myeloid progenitors during early vertebrate development.</p>","PeriodicalId":7804,"journal":{"name":"Animal Cells and Systems","volume":"29 1","pages":"438-445"},"PeriodicalIF":2.5,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12269089/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144658169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}