Abstract: A modified cell, a method for preparing a modified cell, and a use thereof in treatment of a disease. The modified cell comprises a polynucleotide that encodes a presenting peptide, wherein the polynucleotide is under the transcriptional regulation of an endogenous B2M gene.

Abstract: Disclosed herein are fusion proteins having a ?2M polypeptide and a presenting peptide, and nucleic acids that encode such fusion proteins. Provided herein are also genetically engineered cells expressing such fusion protein, methods of their production, and their uses in allogeneic transplant. CAR-T cells expressing fusion protein disclosed herein and their uses in cancer treatment are also disclosed.

Abstract: The present invention relates to a proliferation enhancer. The enhancer comprises a protein molecule capable of initiating the cellular STATS and/or STAT3 signaling pathway and comprising the intracellular domain, the transmembrane domain and the extracellular domain. The present invention further relates to a lymphocyte expressing the proliferation enhancer and the use thereof as an immunotherapy drug.

Abstract: An antigen-binding protein targeting CD70. In particular, the present invention relates to a chimeric antigen receptor containing the antigen binding protein and the use thereof, and cells containing or expressing the antigen binding protein. The antigen-binding protein binds to a CD70 protein at 1 nM of a KD value. The chimeric antigen receptor containing the antigen-binding protein has strong specific recognition and binding abilities to the CD70 protein. The cells containing or expressing the antigen-binding protein can secrete cytokines IL-2 and IFN-?.

Abstract: Disclosed is a method for delivering a gene into target cells, wherein immune cells are used as a vector for virus packaging and transportation to complete the delivery of biomacromolecules among cells, and thus change original characteristics of the target cells or generate new characteristics in the target cells. The gene delivery system, on one hand, can kill target cells such as tumor cells by utilizing the specificity of immune cells; and on the other hand, can modify genes of cells in a lesion by gene delivery to target cells, to directly kill the target cells.

Abstract: Endonucleases play an essential role in genetic engineering and molecular biology. A major barrier to the clinical adoption of nucleases and engineered nucleases remain the overall lack of specificity and activity. Off-site cleavage, cleavage at loci other than the target loci, typically occurs resulting in mutations, unexpected gene-knockouts, or translocations. Provided herein are systems and methods for identifying the off-site cleavage loci and predicting the activity of engineered endonucleases for a given genome. It is expected that these tools and methods will be useful for designing nucleases and other related DNA binding domains (e.g. TAL effectors) for genomic therapy and engineering.

Abstract: The present invention relates to a CRISPR/Cas system comprising guide RNAs and a Cas protein, wherein the guide RNAs are composed of the following two parts: the guide RNAs are capable of respectively binding to two sequences of target sequences having SEQ ID NO: 2, SEQ NO: 3 and SEQ ID NO: 4 in eukaryotic B2M genes. The system exhibits a relatively high single-gene knockout rate for B2M. The present invention further relates to a gene editing method for T cells using the system, which method provides an efficient, safe and simple process for producing universal T cells.

Abstract: Endonucleases play an essential role in genetic engineering and molecular biology. A major barrier to the clinical adoption of nucleases and engineered nucleases remain the overall lack of specificity and activity. Off-site cleavage, cleavage at loci other than the target loci, typically occurs resulting in mutations, unexpected gene-knockouts, or translocations. Provided herein are systems and methods for identifying the off-site cleavage loci and predicting the activity of engineered endonucleases for a given genome. It is expected that these tools and methods will be useful for designing nucleases and other related DNA binding domains (e.g. TAL effectors) for genomic therapy and engineering.