Dear Editor, Renal cell carcinoma (RCC) is among the most common human cancers in the United States, with approximately 63,990 new patients and 14,400 deaths annually [1]. However, RCC is not among the top 10 malignan...Dear Editor, Renal cell carcinoma (RCC) is among the most common human cancers in the United States, with approximately 63,990 new patients and 14,400 deaths annually [1]. However, RCC is not among the top 10 malignancies in China in terms of incidence and mortality [2]. The clini-cal and molecular features of RCC differ among distinct pathological types, mainly clear cell renal cell carcinoma (ccRCC), papillary renal cell carcinoma (PRCC), and chromophobe renal cell carcinoma (ChRCC). The most common subtype of RCC is ccRCC worldwide. Accord-ing to The Cancer Genome Atlas (TCGA), the somatic mutation landscape of RCC has been revealed by whole- exome sequencing (WES) or whole-genome sequencing (WGS). In our previous WES study, we validated most of the significantly mutated genes reported by the TCGA and identified several novel somatically altered genes [3]. The TCGA study showed that only somatic mutations in BRCA1-associated protein 1 (BAP1) were associated with patients’ poor survival outcomes among all significantly mutated genes [4]. In our previous WES study, BAP1 was somatically mutated in 2 of 15 ccRCC samples [3]. Never-theless, all of these RCC patients lacked follow-up infor-mation. Hence, further analysis is needed to determine whether there are any somatically mutated genes associ-ated with the prognosis of Chinese patients with RCC. However, WES or WGS is time-consuming and costly. Furthermore, compared with targeted sequencing, WES was more likely to generate false positives and false nega-tives due to insufficient base coverage [5].展开更多
Dear Editor： Gao et al. published data in Nature Biotechnology （Nat Biotechnol. 2016 May 2） showing that DNA-guided genome editing using the Natronobacterium gregoryi Argonaute （NgAgo） protein targeted 47 mammali...Dear Editor： Gao et al. published data in Nature Biotechnology （Nat Biotechnol. 2016 May 2） showing that DNA-guided genome editing using the Natronobacterium gregoryi Argonaute （NgAgo） protein targeted 47 mammalian genomic loci with a 100% success rate and an efficiency of 21.3%-41.3% at various targets. This report led us to test NgAgo＇s utility in various cells and organisms such as mouse and zebrafish for gene editing.展开更多
基金The study was funded by the National Natural Science Foundation of China(Grant No.81272829)
文摘Dear Editor, Renal cell carcinoma (RCC) is among the most common human cancers in the United States, with approximately 63,990 new patients and 14,400 deaths annually [1]. However, RCC is not among the top 10 malignancies in China in terms of incidence and mortality [2]. The clini-cal and molecular features of RCC differ among distinct pathological types, mainly clear cell renal cell carcinoma (ccRCC), papillary renal cell carcinoma (PRCC), and chromophobe renal cell carcinoma (ChRCC). The most common subtype of RCC is ccRCC worldwide. Accord-ing to The Cancer Genome Atlas (TCGA), the somatic mutation landscape of RCC has been revealed by whole- exome sequencing (WES) or whole-genome sequencing (WGS). In our previous WES study, we validated most of the significantly mutated genes reported by the TCGA and identified several novel somatically altered genes [3]. The TCGA study showed that only somatic mutations in BRCA1-associated protein 1 (BAP1) were associated with patients’ poor survival outcomes among all significantly mutated genes [4]. In our previous WES study, BAP1 was somatically mutated in 2 of 15 ccRCC samples [3]. Never-theless, all of these RCC patients lacked follow-up infor-mation. Hence, further analysis is needed to determine whether there are any somatically mutated genes associ-ated with the prognosis of Chinese patients with RCC. However, WES or WGS is time-consuming and costly. Furthermore, compared with targeted sequencing, WES was more likely to generate false positives and false nega-tives due to insufficient base coverage [5].
文摘Dear Editor： Gao et al. published data in Nature Biotechnology （Nat Biotechnol. 2016 May 2） showing that DNA-guided genome editing using the Natronobacterium gregoryi Argonaute （NgAgo） protein targeted 47 mammalian genomic loci with a 100% success rate and an efficiency of 21.3%-41.3% at various targets. This report led us to test NgAgo＇s utility in various cells and organisms such as mouse and zebrafish for gene editing.
