Compositions for stabilizing DNA and RNA in blood and other biological samples during shipping and storage at ambient temperatures
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12N-005/071
C12Q-001/68
A01N-001/02
출원번호
US-0191346
(2011-07-26)
등록번호
US-9376709
(2016-06-28)
발명자
/ 주소
Whitney, Scott E.
Wilkinson, Steven
Muller, Rolf
출원인 / 주소
Biomatrica, Inc.
대리인 / 주소
Wilson Sonsini Goodrich & Rosati
인용정보
피인용 횟수 :
4인용 특허 :
211
초록▼
Compositions and methods are disclosed for substantially liquid, gel, suspension, slurry, semisolid and/or colloid storage of biological samples following admixture with the herein disclosed storage composition, permitting substantial recovery of biological activity following storage without refrige
Compositions and methods are disclosed for substantially liquid, gel, suspension, slurry, semisolid and/or colloid storage of biological samples following admixture with the herein disclosed storage composition, permitting substantial recovery of biological activity following storage without refrigeration. In certain embodiments, unfractionated blood or tissue samples may be stored without refrigeration in a form that permits recovery of intact DNA or RNA components following the storage period.
대표청구항▼
1. A composition for substantially stable storage of nucleic acid in a biological sample, comprising: 1-benzyl-3-hexylimidazolium bromide, morpholinoethane sulfonic acid (MES), sulfosalicylic acid, tris(carboxyethyl)phosphine hydrochloride, and guanidine hydrochloride. 2. The composition of claim 1
1. A composition for substantially stable storage of nucleic acid in a biological sample, comprising: 1-benzyl-3-hexylimidazolium bromide, morpholinoethane sulfonic acid (MES), sulfosalicylic acid, tris(carboxyethyl)phosphine hydrochloride, and guanidine hydrochloride. 2. The composition of claim 1 which further comprises a surfactant or a detergent. 3. The composition of claim 2 wherein the surfactant or detergent is selected from 4-(1,1,3,3-Tetramethylbutyl)phenyl-polyethylene glycol and Polyethylene glycol mono(octylphenyl)ether. 4. The composition of claim 1 further comprising nucleic acid molecules comprising one or more of DNA molecules and RNA molecules. 5. The composition of claim 1 further comprising vertebrate blood. 6. The composition of claim 5 wherein the vertebrate blood is unfractionated. 7. The composition of claim 1 further comprising human blood. 8. The composition of claim 7 wherein the human blood is unfractionated. 9. The composition of claim 1 further comprising a biological sample selected from the group consisting of DNA, RNA, blood, buffy coat from blood, urine, feces, serum, serosal fluid, plasma, lymph, cerebrospinal fluid, saliva, mucosal secretion, vaginal fluid, ascites fluid, pleural fluid, pericardial fluid, peritoneal fluid, abdominal fluid, buccal cells, bacteria, viruses, yeast cells, organ culture, cell culture, plasmid DNA, mRNA, tRNA, rRNA, siRNA, micro RNA, hnRNA, cDNA, a vaccine, a cell, a sorted or selected cell, a tissue, a cell lysate, homogenate or extract, a tissue lysate, homogenate or extract, a blood sample, biopsy specimen, tissue explant, organ culture and a biological fluid. 10. A substantially stably-stored nucleic acid molecule from a biological sample, comprising the biological sample admixed with the composition of claim 1. 11. The substantially stably-stored nucleic acid molecule of claim 10, wherein the biological sample is selected from the group consisting of: (a) a vertebrate blood sample,(b) a human blood sample,(c) the sample of (a) or (b) wherein the nucleic acid molecule comprises one or more of a DNA molecule and an RNA molecule. 12. The composition of claim 1 which is selected from (a) a composition that is capable, following admixture with a first sample of unfractionated human blood to obtain a test mixture and storage of the test mixture without refrigeration for a time period of at least 60 days, of substantially preventing degradation of at least 70% of recoverable DNA from the test mixture, relative to DNA recoverable from a second sample of said unfractionated human blood that is stored at −20° C. during said time period; and(b) a composition that is capable, following admixture with a first sample of unfractionated human blood to obtain a test mixture and storage of the test mixture without refrigeration for a time period of at least 21 days, of substantially preventing degradation of at least 70% of recoverable RNA from the test mixture, relative to RNA recoverable from a second sample of said unfractionated human blood that is stored at −80° C. during said time period. 13. A method for substantially stabilizing one or a plurality of nucleic acid molecules that are present in a biological sample, comprising: (a) admixing the biological sample with the composition of claim 1 to obtain a mixture, and(b) maintaining the mixture without refrigeration for a time period of at least 7 days, and thereby substantially stabilizing said one or a plurality of nucleic acid molecules that are present in the biological sample, wherein one and/or two of: (i) degradation is substantially prevented of at least 70% of recoverable DNA in the mixture, relative to an amount of DNA that is recoverable from the sample when stored for the time period at −20° C. without the composition of claim 1, and(ii) degradation is substantially prevented of at least 70% of recoverable RNA in the mixture, relative to an amount of RNA that is recoverable from the sample when stored for the time period at −80° C. without the composition of claim 1,are present. 14. The method of claim 13 wherein the biological sample is selected from: (a) a biological sample that comprises vertebrate blood,(b) the biological sample of (a) wherein the vertebrate blood is unfractionated,(c) a biological sample that comprises human blood,(d) the biological sample of (c) wherein the human blood is unfractionated,(e) a biological sample that is selected from the group consisting of DNA, RNA, blood, blood buffy coat, urine, feces, serum, serosal fluid, plasma, lymph, cerebrospinal fluid, saliva, mucosal secretion, vaginal fluid, ascites fluid, pleural fluid, pericardial fluid, peritoneal fluid, abdominal fluid, buccal cells, bacteria, organ culture, cell culture, viruses, yeast cells, plasmid DNA, mRNA, tRNA, rRNA, siRNA, micro RNA, hnRNA, cDNA, a vaccine, a cell, a sorted or selected cell, a tissue, a cell lysate, homogenate or extract, a tissue lysate, homogenate or extract, a blood sample, biopsy specimen, tissue explant, organ culture and a biological fluid. 15. The method of claim 13 wherein the step of maintaining comprises maintaining for a time period of at least 10, 20, 30, 40, 50, 60 or 70 days.
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이 특허에 인용된 특허 (211)
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