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Photo-activated microtubule targeting drugs: Advancing therapies for colorectal cancer

World Journal of Gastroenterology 2024年第26期30卷 3257-3260页

作者： Naresh Singh Samantha Sharma Department of Medical and molecular genetics Indiana University School of MedicineIndianapolisIN 46202United States

Over the years immunotherapy has demonstrably improved the field of cancer ***,achieving long-term survival for colorectal cancer(CRC)patients remains a significant unmet *** immunotherapies incor-porating targeted drugs like MEK or multi-kinase inhibitors have offered some palliative ***,substantial gaps remain in the current therapeutic armamentarium for *** recent years,there has been a surge of interest in exploring novel treatment strategies,including the application of light-activated drugs in conjunction with optical *** approach holds promise for achie-ving localized and targeted delivery of cytotoxic agents,such as microtubule-targeting drugs,directly to cancerous cells within the colon.

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Dysregulation of RNA modification systems in clinical populations with neurocognitive disorders

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Neural Regeneration Research 2024年第6期19卷 1256-1261页

作者： Helen M.Knight Merve Demirbugen ?z Adriana PerezGrovas-Saltijeral Division of Cells Organisms and Molecular Genetics School of Life Sciences University of Notingham Department of Pharmaceutical Toxicology Faculty of Pharmacy Ankara University

The study of modified RNA known as epitranscriptomics has become increasingly relevant in our understanding of disease-modifying mechanisms. Methylation of N6 adenosine(m6A) and C5 cytosine(m5C) bases occur on mRNAs, tRNA, mt-tRNA, and rRNA species as well as non-coding RNAs. With emerging knowledge of RNA binding proteins that act as writer, reader, and eraser effector proteins, comes a new understanding of physiological processes controlled by these systems. Such processes when spatiotemporally disrupted within cellular nanodomains in highly specialized tissues such as the brain, give rise to different forms of disease. In this review, we discuss accumulating evidence that changes in the m6A and m5C methylation systems contribute to neurocognitive disorders. Early studies first identified mutations within FMR1 to cause intellectual disability Fragile X syndromes several years before FMR1 was identified as an m6A RNA reader protein. Subsequently, familial mutations within the m6A writer gene METTL5, m5C writer genes NSUN2, NSUN3, NSUN5, and NSUN6, as well as THOC2 and THOC6 that form a protein complex with the m5C reader protein ALYREF, were recognized to cause intellectual development disorders. Similarly, differences in expression of the m5C writer and reader effector proteins, NSUN6, NSUN7, and ALYREF in brain tissue are indicated in individuals with Alzheimer’s disease, individuals with a high neuropathological load or have suffered traumatic brain injury. Likewise, an abundance of m6A reader and anti-reader proteins are reported to change across brain regions in Lewy bodies diseases, Alzheimer’s disease, and individuals with high cognitive reserve. m6A-modified RNAs are also reported significantly more abundant in dementia with Lewy bodies brain tissue but significantly reduced in Parkinson’s disease tissue, whilst modified RNAs are misplaced within diseased cells, particularly where synapses are located. In parahippocampal brain tissue, m6A modification is en

关键词： 5-methylcytosine methylation Alzheimer's disease cognitive diseases epitranscriptomics intellectual disability Lewy body diseases N6 adenosine RNA modification

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J-family genes redundantly regulate flowering time and increase yield in soybean

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The Crop Journal 2024年第3期12卷 944-949页

作者： Haiyang Li Zheng Chen Fan Wang Hongli Xiang Shuangrong Liu Chuanjie Gou Chao Fang Liyu Chen Tiantian Bu Fanjiang Kong Xiaohui Zhao Baohui Liu Xiaoya Lin Guangdong Key Laboratory of Plant Adaptation and molecular Design/Guangzhou Key Laboratory of Crop Gene Editing/Innovative Center of molecular genetics and Evolution School of Life SciencesGuangzhou UniversityGuangzhou 510006GuangdongChina

Soybean(Glycine max)is a short-day crop whose flowering time is regulated by *** longjuvenile trait extends its vegetative phase and increases yield under short-day *** variation in J,the major locus controlling this trait,modulates flowering *** report that the three J-family genes influence soybean flowering time,with the triple mutant Guangzhou Mammoth-2 flowering late under short days by inhibiting transcription of E1-family genes.J-family genes offer promising allelic combinations for breeding.

关键词： Soybean Flowering time Yield J-family genes

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Cell-type resolved transcriptomic approaches for dissecting selective vulnerability in neurodgeneration

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Neural Regeneration Research 2024年第7期19卷 1411-1413页

作者： Caleb A.Wood Nicholas M.Tran Department of Neuroscience Baylor College of MedicineHoustonTXUSA Department of molecular and Human genetics Baylor College of MedicineHoustonTXUSA

A common feature among neurodegenerative conditions is that ce rtain neuronal populations are selectively vulnerable to loss(Fu et al.,2018).By corollary,other neurons are selectively resilient,suggesting they may possess unique features that support their survival.U nderstanding the basis of neuronal resilience or vulnerability would provide a logical strategy to identify factors that could be targeted therapeutically.

关键词： selective targeted

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Phylogenetic, phylogeographic and divergence time analysis of Anopheles subpictus species complex using ITS2 and COI sequences

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Asian Pacific Journal of Tropical Medicine 2024年第5期17卷 214-225,I0004-I0038页

作者： Lihini Sandaleka Muthukumarana Methsala Madurangi Wedage Samanthika Rathnayake Nissanka Kolitha De Silva Department of Zoology Faculty of Applied SciencesUniversity of Sri JayewardenepuraGangodawilaNugegodaSri Lanka genetics and molecular Biology unit Faculty of Applied SciencesUniversity of Sri JayewardenepuraGangodawilaNugegodaSri Lanka Sri Lanka Institute of Biotechnology PitipanaHomagamaSri Lanka

Objective:To address the phylogenetic and phylogeographic relationship between different lineages of Anopheles(An.)subpictus species complex in most parts of the Asian continent by maximum utilization of Internal Transcriber Spacer 2(ITS2)and cytochrome C oxidase I(COI)sequences deposited at the ***:Seventy-five ITS2,210 COI and 26 concatenated sequences available in the NCBI database were *** analysis was performed using Bayesian likelihood trees,whereas median-joining haplotype networks and time-scale divergence trees were generated for phylogeographic *** diversity indices and genetic differentiation were also ***:Two genetically divergent molecular forms of *** species complex corresponding to sibling species A and B are *** A evolved around 37-82 million years ago in Sri Lanka,India,and the Netherlands,and species B evolved around 22-79 million years ago in Sri Lanka,India,and ***,Thailand,and Cambodia have two molecular forms:one is phylogenetically similar to species *** forms differ from species A and B and evolved recently in the above mentioned countries,Indonesia and the *** subdivision among Sri Lanka,India,and the Netherlands is almost absent.A substantial genetic differentiation was obtained for some populations due to isolation by large geographical *** diversity indices reveal the presence of a long-established stable mosquito population,at mutation-drift equilibrium,regardless of population ***:*** species complex consists of more than two genetically divergent molecular *** A is highly divergent from the *** Lanka and India contain only species A and B.

关键词： molecular systematics ITS2 COI DNA sequences Phylogeny Phylogeography

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The piRNA size matters

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National Science Review 2024年第2期11卷 96-98页

作者： Jingwen Liu Falong Lu State Key Laboratory of molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences University of Chinese Academy of Sciences

Small RNAs, including small interfering RNAs(siRNAs), microRNAs(miRNAs) and PIWI-interacting RNAs(piRNAs), serve as pivotal agents in the post-transcriptional regulation of gene expression [1–3]. Among these,piRNAs t... 详细信息

关键词： PIWI

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Genetic investigation of the ubiquitin-protein ligase E3A gene as putative target in Angelman syndrome

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World Journal of Clinical Cases 2024年第3期12卷 503-516页

作者： Wiem Manoubi Marwa Mahdouani Dorra Hmida Ameni Kdissa Aida Rouissi Ilhem Turki Neji Gueddiche Najla Soyah Ali Saad Christian Bouwkamp Ype Elgersma Soumaya Mougou-Zerelli Moez Gribaa Laboratory of Human cytogenetics Molecular Genetics and Reproductive BiologyFarhat Hached University HospitalSousse 4000Tunisia Higher Institute of Biotechnology of Monastir University of MonastirMonastir 3000Tunisia Department of Neuropediatry La Rabta HospitalTunis 2000Tunisia Department of Pediatric Farhat Hached University HospitalSousse 4000Tunisia Department of Neuroscience Erasmus MCthe NetherlandsRotterdam 3112 tdNetherlands

BACKGROUND Angelman syndrome(AS)is caused by maternal chromosomal deletions,imprinting defects,paternal uniparental disomy involving chromosome 15 and the ubiquitin-protein ligase UBE3A gene *** the genetic basis remains unclear for several *** To investigate the involvement of UBE3A gene in AS and identifying new potential genes using exome *** We established a cohort study in 50 patients referred to Farhat Hached University Hospital between 2006 and 2021,with a strong suspicion of AS and absence of chromosomal *** UBE3A gene was screened for mutation *** unrelated patients issued from consanguineous families were subjected to exome *** We describe seven UBE3A variants among them 3 none previously described including intronic variants c.2220+14T>C(intron14),c.2507+43T>A(Exon15)and insertion in Exon7:c.30-47_*** exome sequencing revealed 22 potential genes that could be involved in AS-like syndromes that should be investigated *** Screening for UBE3A mutations in AS patients has been proven to be useful to confirm the *** exome findings could rise to new potential alternative target genes for genetic counseling.

关键词： Angelman syndrome Ubiquitin-protein ligase E3A Exome Consanguinity Polymorphism

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Wood of trees:Cellular structure,molecular formation,and genetic engineering

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Journal of Integrative Plant Biology 2024年第3期66卷 443-467页

作者： Yingying Zhu Laigeng Li State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems and College of Ecology Lanzhou UniversityLanzhou 730000China National Key Laboratory of Plant molecular genetics CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China

Wood is an invaluable asset to human society due to its renewable nature,making it suitable for both sustainable energy production and material ***,wood derived from forest trees plays a crucial role in sequestering a significant portion of the carbon dioxide fixed during photosynthesis by terrestrial ***,with the expansion of the global population and ongoing industrialization,forest coverage has been substantially decreased,resulting in significant challenges for wood production and *** production practices have changed away from natural forests toward plantation ***,understanding the underlying genetic mechanisms of wood formation is the foundation for developing high-quality,fast-growing plantation *** ideal forest trees for wood production using genetic technologies has attracted the interest of *** studies have been carried out in recent years on the molecular,genetic,and cell-biological mechanisms of wood formation,and considerable progress and findings have been *** studies and findings indicate enormous possibilities and prospects for tree *** review will outline and assess the cellular and molecular mechanisms of wood formation,as well as studies on genetically improving forest trees,and address future development prospects.

关键词： cambium cell wall Populus wood formation xylem

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Transcriptomic and metabolomic analysis provides insights into lignin biosynthesis and accumulation and differences in lodging resistance in hybrid wheat

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Journal of Integrative Agriculture 2024年第4期23卷 1105-1117页

作者： Weibing Yang Shengquan Zhang Qiling Hou Jiangang Gao Hanxia Wang Xianchao Chen Xiangzheng Liao Fengting Zhang Changping Zhao Zhilie Qin Institute of Hybrid Wheat Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China Beijing Municipal Key Laboratory of molecular genetics of Hybrid Wheat Beijing 100097China

The use of hybrid wheat is one way to improve the yield in the ***,greater plant heights increase lodging risk to some *** this study,two hybrid combinations with differences in lodging resistance were used to analyze the stem-related traits during the filling stage,and to investigate the mechanism of the difference in lodging resistance by analyzing lignin synthesis of the basal second internode(BSI).The stem-related traits such as the breaking strength,stem pole substantial degree(SPSD),and rind penetration strength(RPS),as well as the lignin content of the lodging-resistant combination(LRC),were significantly higher than those of the lodgingsensitive combination(LSC).The phenylpropanoid biosynthesis pathway was significantly and simultaneously enriched according to the transcriptomics and metabolomics analysis at the later filling stage.A total of 35 critical regulatory genes involved in the phenylpropanoid pathway were ***,42%of the identified genes were significantly and differentially expressed at the later grain-filling stage between the two combinations,among which more than 80%were strongly up-regulated at that stage in the LRC compared with *** the contrary,the LRC displayed lower contents of lignin intermediate metabolites than the *** results suggested that the key to the lodging resistance formation of LRC is largely the higher lignin synthesis at the later grain-filling ***,breeding strategies for synergistically improving plant height and lodging resistance of hybrid wheat were put forward by comparing the LRC with the conventional wheat applied in large areas.

关键词： gene expression lignin synthesis lodging-resistance hybrid wheat

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Role of renin-angiotensin system/angiotensin converting enzyme-2 mechanism and enhanced COVID-19 susceptibility in type 2 diabetes mellitus

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World Journal of Diabetes 2024年第4期15卷 606-622页

作者： Ashwin Kumar Shukla Komal Awasthi Kauser Usman Monisha Banerjee molecular and Human genetics Laboratory Department of ZoologyUniversity of LucknowLucknow 226007Uttar PradeshIndia Department of Medicine King Georges’Medical UniversityLucknow 226003Uttar PradeshIndia Institute of Advanced molecular genetics and Infectious Diseases(IAMGID)University of LucknowLucknow 226007Uttar PradeshIndia

Coronavirus disease 2019(COVID-19)is a disease that caused a global pandemic and is caused by infection of severe acute respiratory syndrome coronavirus 2 *** has affected over 768 million people worldwide,resulting in approx-imately 6900000 ***-risk groups,identified by the Centers for Disease Control and Prevention,include individuals with conditions like type 2 diabetes mellitus(T2DM),obesity,chronic lung disease,serious heart conditions,and chronic kidney *** indicates that those with T2DM face a hei-ghtened susceptibility to COVID-19 and increased mortality compared to non-diabetic *** the renin-angiotensin system(RAS),a vital regulator of blood pressure and pulmonary stability,reveals the significance of the angiotensin-converting enzyme(ACE)and ACE2 *** converts angiotensin-I to the vasoconstrictor angiotensin-II,while ACE2 counters this by converting angiotensin-II to angiotensin 1-7,a *** ACE2 exp-ression,common in diabetes,intensifies RAS activity,contributing to conditions like inflammation and *** ACE inhibitors and angiotensin receptor blockers can be therapeutically beneficial by increasing ACE2 levels,concerns arise regarding the potential elevation of ACE2 receptors on cell membranes,potentially facilitating COVID-19 *** review explored the role of the RAS/ACE2 mechanism in amplifying severe acute respiratory syndrome cor-onavirus 2 infection and associated complications in *** treatment strategies,including recombinant human ACE2 therapy,broad-spectrum antiviral drugs,and epigenetic signature detection,are discussed as promising avenues in the battle against this pandemic.

关键词： Angiotensin-converting enzyme 2 Angiotensin-converting enzyme inhibitors Angiotensin-II receptor blockers Complex diseases COVID-19 Type 2 diabetes

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