Abstract:
The present invention relates to methods, kits, and compositions for detecting and/or diagnosing metastatic potential of cancer cells or for evaluating prognosis in a patient with cancer by detection of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule. The present invention also relates to the use of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule as a prognosis biomarker and metastasis predictive biomarker of cancer.
Abstract:
The present invention provides a method for constructing a high-throughput sequencing library, which comprises: fragmenting genomic DNA; end-repairing the DNA fragments; adding a base A to the 3′ end of the end-repaired DNA fragments; connecting the DNA fragments having cohesive end A with a methylated adapter; carrying out hybrid capture on the connection products by using specific probes to obtain object fragments; treating the object fragments with bisulfite, to convert non-methylated cytosines to uracils; PCR amplifying the converted object fragments; and separating and purifying the amplification products, wherein the amplification products constitute the high-throughput sequencing library. The present invention also provides a method and an apparatus for identifying methylation information in specified genome regions of a sample.
Abstract:
The present disclosure discloses an amplification primer design and ligation method for DNA molecules, particularly a library preparation method for increasing the throughput of data available for sequencing Pacbio amplicons, which includes designing different primer pairs for the DNA molecule and performing PCR amplification on the template DNA using the different primer pairs respectively in different amplification systems. In the present disclosure, shorter PCR products are ligated to obtain a longer library, and the ligated library is used for sequencing, which can greatly improve data utilization while ensuring data quality.
Abstract:
The present invention provides a method for constructing a high-throughput sequencing library, which comprises: fragmenting genomic DNA; end-repairing the DNA fragments; adding a base A to the 3′ end of the end-repaired DNA fragments; connecting the DNA fragments having cohesive end A with a methylated adapter; carrying out hybrid capture on the connection products by using specific probes to obtain object fragments; treating the object fragments with bisulfite, to convert non-methylated cytosines to uracils; PCR amplifying the converted object fragments; and separating and purifying the amplification products, wherein the amplification products constitute the high-throughput sequencing library. The present invention also provides a method and an apparatus for identifying methylation information in specified genome regions of a sample.
Abstract:
A method for detecting hydroxymethylation modification in nucleic acid comprises: glycosylating the nucleic acid, digesting with MspI, ligating the digested fragments to a biotin-labeled linker at both ends thereof, digesting with NlaIII; capturing the digested fragments using streptavidin magnetic beads to produce fragments having the biotin-labeled linker at one end and a CATG 4-base sticky end at the other end, wherein these fragments reveal modification information of their adjacent CCGG sites; ligating the CATG sticky end to a linker containing a recognition site of MmeI or Ecop15I, digesting with corresponding restriction endonuclease to produce short sequence fragments that can reveal modification information of their adjacent CCGG sites; and performing a tag number comparison to obtain information about methylation and hydroxymethylation modification relative levels. A use of the method is also provided.
Abstract:
A method for detecting hydroxymethylation modification in nucleic acid comprises: glycosylating the nucleic acid, digesting with MspI, ligating the digested fragments to a biotin-labeled linker at both ends thereof, digesting with NlaIII; capturing the digested fragments using streptavidin magnetic beads to produce fragments having the biotin-labeled linker at one end and a CATG 4-base sticky end at the other end, wherein these fragments reveal modification information of their adjacent CCGG sites; ligating the CATG sticky end to a linker containing a recognition site of MmeI or Ecop15I, digesting with corresponding restriction endonuclease to produce short sequence fragments that can reveal modification information of their adjacent CCGG sites; and performing a tag number comparison to obtain information about methylation and hydroxymethylation modification relative levels. A use of the method is also provided.
Abstract:
The present invention relates to methods, kits, and compositions for detecting and/or diagnosing metastatic potential of cancer cells or for evaluating prognosis in a patient with cancer by detection of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule. The present invention also relates to the use of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule as a prognosis biomarker and metastasis predictive biomarker of cancer.
Abstract:
The present invention relates to methods, kits, and compositions for detecting and/or diagnosing metastatic potential of cancer cells or for evaluating prognosis in a patient with cancer by detection of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule. The present invention also relates to the use of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule as a prognosis biomarker and metastasis predictive biomarker of cancer.
Abstract:
The present invention relates to methods, kits, and compositions for detecting and/or diagnosing metastatic potential of cancer cells or for evaluating prognosis in a patient with cancer by detection of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule. The present invention also relates to the use of the protein expression level of an HLA class I molecule and/or the copy number variation of a polynucleotide encoding the HLA class I molecule as a prognosis biomarker and metastasis predictive biomarker of cancer.