Abstract: The present invention pertains to a method of preparing a frozen biological sample, comprising the steps of fixing the biological sample with a non-crosslinking fixative solution, incubating the fixed biological sample in an aqueous solution comprising a cryoprotectant, and freezing the cryoprotected biological sample. The method advantageously allows to preserve both, morphology of the sample as well as biological components such as nucleic acids and proteins, in high quality for subsequent analysis. The method is robust, simple and neither requires laborious steps associated with paraffin-embedding nor immediate freezing of the sample. Also provided are advantageous uses and kits.

Abstract: The present invention pertains to a method of preparing a frozen biological sample, comprising the steps of fixing the biological sample with a non-crosslinking fixative solution, incubating the fixed biological sample in an aqueous solution comprising a cryoprotectant, and freezing the cryoprotected biological sample. The method advantageously allows to preserve both, morphology of the sample as well as biological components such as nucleic acids and proteins, in high quality for subsequent analysis. The method is robust, simple and neither requires laborious steps associated with paraffin-embedding nor immediate freezing of the sample. Also provided are advantageous uses and kits.

Abstract: A method for stabilizing and isolating multiple biological targets comprised in a cell-containing bodily fluid, said method comprising (A) contacting a cell-containing bodily fluid with a stabilizing composition comprising one or more of the following stabilizing agents: (a) at least one primary, secondary or tertiary amide, (b) at least one poly(oxyethylene) polymer, and/or (c) at least one apoptosis inhibitor, thereby providing a stabilized cell-containing bodily fluid sample; (B) keeping the stabilized cell-containing bodily fluid sample for a stabilization period; and (C) processing the stabilized cell-containing bodily fluid sample in order to enrich three or more biological targets selected from the group consisting of —a cell subpopulation, —extracellular nucleic acids, —extracellular vesicles and —intracellular nucleic acids from the stabilized cell-containing bodily fluid.

Abstract: The present disclosure provides a method for stabilizing a urine sample comprising contacting the urine sample for stabilization with EDTA, at least one poly(oxyethylene) polymer and a preservative for inhibiting bacterial growth. Also provided are stabilizing compositions and methods for processing stabilized urine sample.

Abstract: The present invention provides a method for preparing a sterilized composition suitable for stabilizing an extracellular nucleic acid population of a biological sample. Also provided are sterilizable compositions, wherein the compositions in sterilized form are suitable for stabilizing an extracellular nucleic acid population of a biological sample. Further useful methods, devices, kits and uses are also provided. Further sterilisable and sterilized compositions described herein are also suitable to stabilize intracellular nucleic acids (e.g. intracellular DNA such as genomic DNA and/or intracellular RNA) and cell characteristics, such as e.g. cell surface proteins and/or the cell morphology.

Abstract: The present invention relates to a method for the treatment of a biological material, comprising the steps i) providing a biological material, and ii) contacting the biological material with a first non-aqueous composition comprising: (a1) 10 to 90 vol. % methanol, and (a2) at least one additional additive, and (a3) optionally an acid. iii) transferring the biological material into a second composition (B) comprising up to 99 vol. % ethanol as well as to a new composition for preservation of a biological material usable in said method and the biological material resulting from this method, a method for the analysis of a treated biological material, various kits as well as the use of the composition in such a method.

Abstract: The present invention relates to a method for the treatment of a biological material, comprising the steps i) providing a biological material, and ii) contacting the biological material with a first non-aqueous composition comprising: (a1) 10 to 90 vol. % methanol, and (a2) at least one additional additive, and (a3) optionally an acid. iii) transferring the biological material into a second composition (B) comprising up to 99 vol. % ethanol as well as to a new composition for preservation of a biological material usable in said method and the biological material resulting from this method, a method for the analysis of a treated biological material, various kits as well as the use of the composition in such a method.

Abstract: A formal-in-free fixative composition, suitable for the fixation of cells in particular in liquid samples, the use of said fixative for the treatment of biological samples, a method for the treatment of cell-comprising liquid samples, a kit comprising said fixative and a method for diagnosis of cell-comprising biological material samples.

Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using butanamide.

Abstract: The present invention provides a method for preparing a sterilized composition suitable for stabilizing an extracellular nucleic acid population of a biological sample. Also provided are sterilizable compositions, wherein the compositions in sterilized form are suitable for stabilizing an extracellular nucleic acid population of a biological sample. Further useful methods, devices, kits and uses are also provided. Further sterilisable and sterilized compositions described herein are also suitable to stabilize intracellular nucleic acids (e.g. intracellular DNA such as genomic DNA and/or intracellular RNA) and cell characteristics, such as e.g. cell surface proteins and/or the cell morphology.

Abstract: The present invention pertains to a method of preparing a frozen biological sample, comprising the steps of fixing the biological sample with a non-crosslinking fixative solution, incubating the fixed biological sample in an aqueous solution comprising a cryoprotectant, and freezing the cryoprotected biological sample. The method advantageously allows to preserve both, morphology of the sample as well as biological components such as nucleic acids and proteins, in high quality for subsequent analysis. The method is robust, simple and neither requires laborious steps associated with paraffin-embedding nor immediate freezing of the sample. Also provided are advantageous uses and kits.

Abstract: The present invention refers to a formal-in-free fixative composition, suitable for the fixation of cells in particular in liquid samples, the use of said fixative for the treatment of biological samples, a method for the treatment of cell-comprising liquid samples, a kit comprising said fixative and a method for diagnosis of cell-comprising biological material samples.

Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using a poly(oxyethylene) polymer or mono-ethylene glycol as stabilizing agent.

Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using butanamide.

Abstract: The present invention provides methods, compositions and devices for stabilizing the extracellular nucleic acid population in a cell-containing biological sample using butanamide.

Abstract: The present invention relates to a method for the treatment of a biological material, comprising the steps i) providing a biological material, and ii) contacting the biological material with a first non-aqueous composition comprising: (a1) 10 to 90 vol. % methanol, and (a2) at least one additional additive, and (a3) optionally an acid. iii) transferring the biological material into a second composition (B) comprising up to 99 vol. % ethanol as well as to a new composition for preservation of a biological material usable in said method and the biological material resulting from this method, a method for the analysis of a treated biological material, various kits as well as the use of the composition in such a method.