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012024-10-31 Nature | Hu Zheng, He Xionglei and He Zhen labs reveal a new evolutionary model of early tumour transition from polyclonal to monoclonalNature | 胡政/贺雄雷/何真团队揭示早期肿瘤从多克隆至单克隆转变的演化新模式
Understanding the early mechanisms of tumour development is crucial for early prevention and treatment. The traditional…理解肿瘤的早期发生机制,对实现肿瘤的早期预防和治疗至关重要。传统的 Nowell 克隆演化理论认为,肿瘤是由一个发生致癌突变的单一细胞引起,经过不断的细胞扩增和筛选,最终形成恶性肿瘤。这一理论强调肿瘤具有“单克隆起源”,即肿瘤由一个细胞起源…
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022024-05-24 Advanced Biotechnology | He lab at Sun Yat-sen University uses a new quantitative method to explore the link between somatic clonal expansion and cancer riskAdvanced Biotechnology | 中山大学贺雄雷教授团队采用定量评估新方法探究体细胞克隆扩增与癌症风险的相关性
Somatic clonal expansion is an important form of cell proliferation in multicellular organisms and has long been conside…体细胞克隆扩增是多细胞生物体内细胞增殖的一种重要形式,长期以来被认为与癌症的发生和发展密切相关。尤其是在血液系统中,驱动突变导致的克隆扩增被视为白血病等血液系统肿瘤发生的重要标志。癌症的本质是细胞的失控增殖,而体细胞克隆扩增也具备增殖的表现…
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032024-02-23 Nature Methods | He lab at Sun Yat-sen University proposes a statistical method to quantify progenitor cells, revealing incipient cell fate commitmentsNat Methods | 中山大学贺雄雷团队提出一种量化祖细胞的统计方法,揭示了早期细胞命运的承诺
Quantifying the number of progenitor cells in an organ, tissue or cell population is crucial for understanding the devel…对一个器官、组织或细胞群中祖细胞的数量进行量化,对于理解多细胞生物的发育和体内平衡至关重要。以前的研究依赖于在祖细胞中特异性表达的标记基因。然而,这种策略常常因缺乏理想的标记而受阻。
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042023-10-31 Science Bulletin | The tree of life at two levels: from species to cellScience Bulletin | 两种尺度的生命之树:从物种到细胞
All species on Earth originate from a common ancestor. Their evolutionary history can be represented as a tree-like stru…所有生物种类均源自一个共同的祖先。它们的进化历史可以被呈现为一种树状结构,也即所谓的物种树。在这颗树上,根代表着这个共同的祖先,分支则代表了过去的物种分化事件,而叶子则代表了现代的各个物种。
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052021-12-19 National Science Review | New result from Sun Yat-sen University: 99.9% similarity — mutation signatures trace the natural host of SARS-CoV-2National Science Review | 中山大学最新成果:99.9%相似性!突变特征追溯新冠病毒的自然宿主
Since the outbreak of COVID-19, the origin of SARS-CoV-2 has been debated, one main reason being that RaTG13, the closes…自 COVID-19 爆发以来 SARS-CoV-2 的起源一直争论不休,其中一个主要原因是迄今为止发现与 SARS-CoV-2 最接近的近亲 RaTG13,与 SARS-CoV-2 只有 96.1% 的核苷酸相似性。而本世纪爆发的前两次冠…
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062021-12-03 Nature Methods | He lab develops an efficient lineage-tracing system to build the developmental cell lineage tree of DrosophilaNature Methods | 贺雄雷团队开发高效谱系追踪系统构建果蝇发育细胞谱系树
The phylogenetic tree of species reveals the evolutionary relationships among extant species on Earth. At the microscopi…物种的系统发育树可以展现地球上现存物种间的进化关系。微观尺度上,一个生物个体所有细胞的亲缘关系可以用细胞谱系树来描述。细胞谱系对于理解多细胞生物的胚胎发育、细胞类型的分化、器官的维持与衰老等生理病理过程具有重要意义,是分子进化生物学与发育生…

