Patent classifications
A01N1/0221
ADIPOSE TISSUE CRYOPRESERVATION PROTECTIVE AGENT
Use of glycerol in preparing an adipose tissue cryopreservation protective agent and the adipose tissue cryopreservation protective agent. Based on the total volume of the adipose tissue cryopreservation protective agent, the adipose tissue cryopreservation protective agent includes: glycerol with a volume fraction of 60-80%; 0.090-0.200 g/ml trehalose; and a PBS buffer serving as the solvent. The adipose tissue cryopreservation protective agent is free of DMSO and other protective agents having biological toxicity, poses no toxicity to cells and tissues, and causes no safety problem during clinical use even in a case of incomplete elution. The adipose tissue cryopreservation protective agent is free of xenoantigen and has low cost. With glycerol and trehalose being clinically approved medicinal ingredients and inexpensive products, the agent of the present disclosure contains no costly products such as human albumin, thus providing increased possibility for clinical use and promotion.
THE USE OF POLYELECTROLYTES AS CRYOPROTECTANTS AND A METHOD OF CRYOPRESERVATION WITH THEIR USE
The subject of the invention is the use of selected polyelectrolytes from the group of synthetic and natural polyelectrolytes for the cryopreservation of human and animal extracellular vesicles. The invention also relates to a method for the cryopreservation of these vesicles, which uses said poly electrolytes.
ANTI-FREEZING COMPOSITION
An anti-freezing composition according to an embodiment of the present disclosure includes at least one of a compound represented by Formula 1 and a compound represented by Formula 2. An anti-freezing composition according to another embodiment of the present disclosure includes a peptide consisting of amino acids having different chirality, thereby having an excellent effect of inhibiting ice formation or ice recrystallization.
METHODS FOR ISOLATING GAMMA DELTA T CELLS
The invention relates to methods for the isolation of non-haematopoietic tissue-resident lymphocytes, particularly γδ T cells. Such γδ T cells include non-Vδ2 cells, e.g. Vδ1, Vδ3 and Vδ5 cells and such non-haematopoietic tissues include skin and gut. It will be appreciated that such isolated non-haematopoietic tissue-resident lymphocytes find great utility in adoptive T cell therapies, chimeric receptor therapies and the like. Also provided are methods for expanding isolated tissue-resident lymphocytes, particularly methods for isolating and expanding γδ T cells. The present invention also relates to both individual cells and populations of cells produced by the methods described herein.
PREPARATION METHOD AND RECOVERY METHOD OF PARIDUVAL MESENCHYMAL STEM CELLS (PMSCs)
The present disclosure discloses a preparation method and a recovery method of pariduval mesenchymal stem cells (PMSCs). In the preparation method, a high-glucose Dulbecco's Modified Eagle Medium (DMEM) that includes a Tryple-ethylenediaminetetraacetic acid (EDTA) enzyme of 40% to 60% in volume concentration and collagenase type II of 8 mg/ml to 12 mg/ml is used as a tissue digestion solution to digest tissue blocks, which facilitates PMSCs to climb out of the tissue blocks and grow adherently; and a serum-free DMEM is adopted as a selective medium to terminate the digestion and resuspend PMSCs, which helps to improve a purity of PMSCs, accelerate the growth of PMSCs, and achieve the rapid expansion of PMSCs in vitro.
STABILIZING COMPOSITION AND METHOD FOR PRESERVING A BODILY FLUID
An aqueous stabilizing composition for preserving a bodily fluid at ambient temperature is provided. The aqueous stabilizing composition comprises: a sugar selected from a monosaccharide, a disaccharide, or a combination thereof; a buffering agent; a C.sub.1-C.sub.6 alkanol; boric acid, a salt of boric acid, or a combination thereof; and a chelating agent; wherein the composition has a pH of from 4.5 to 5.2. A method for preserving a bodily fluid using the aqueous stabilizing composition is also provided, the method comprising: a) obtaining a sample of the bodily fluid; b) contacting the bodily fluid with the aqueous stabilizing composition to form a mixture; c) mixing the mixture of (b) to form a homogeneous mixture; and d) storing the homogeneous mixture at ambient temperature.
COMPOSITION FOR CRYOPROTECTION INCLUDING DNA NANOSTRUCTURE, AND METHOD FOR USING SAME
The present invention relates to a composition for cryopreservation, comprising: a nucleic acid structure which comprises a scaffold nucleic acid folded at predetermined positions to form multiple strands, and a plurality of staple nucleic acids wherein at least a portion of a sequence thereof comprises a complementary sequence to that of the scaffold nucleic acid, which are bound to at least one of the strands of the scaffold nucleic acid to form a double strand; linkers coupled to at least one of single strands in the nucleic acid structure; and an anti-freezing peptide coupled to at least one of the linkers, so as to exhibit excellent freeze-protection effects, which in turn increase cell viability during cryopreservation of cells and tissues, while retaining original texture of food even when used for freezing the food.
Methods of preserving mesenchymal stem cells
This disclosure relates to methods of preserving mesenchymal stromal/stem cells (MSCs) for use in clinical applications. In certain embodiments, this disclosure relates to methods of preserving MSCs comprising mixing MSCs with interferon-gamma prior to cryopreserving, freezing, or cooling the MSCs to a temperature below zero degrees Celsius.
MANUFACTURE AND CRYOPRESERVATION OF FUCOSYLATED CELLS FOR THERAPEUTIC USE
Compositions for and methods of manufacturing a fucosylated cell population are provided. The method may include expansion of the cells and/or cryopreservation of the cells under conditions that retain optimum levels of cell surface fucosylation.
CRYOPRESERVED INSECTS AND METHODS FOR PRODUCING SAME
The present invention provides methods for cryopreservation of insect embryos comprising chorion layers and waxy layer, particularly fly embryos including embryos of Black Soldier Fly (Hermetia illucens, BSF) useful in mass rearing of beneficial fly adults. The present invention further provides cryopreserved embryos having an industrially suitable adult recovery and survival rate.