摘要:
Methods for the measuring cell-free nucleic acids and/or virus particles from dried blood spots are described. The methods can include the steps of rehydrating a dried blood sample, optionally fixing cells present in the rehydrated dried blood sample, eluting cell-free virus particles from the rehydrated dried blood sample, separating the cell-free viruses from any cell debris that may be present in the rehydrated dried blood sample by way of a filter, and measuring cell-free virus particles by a viral particle quantification technique.
摘要:
Methods of testing HIV viral load are described. The methods comprise detecting HIV viral RNA in a sample of leukocyte-depleted blood. Such methods can be carried out on low-volume samples obtained without the need for venipuncture or a centrifuge. The methods are particularly suited for HIV viral load testing in resource-limited settings. Methods for monitoring HIV infection are also described, as well as kits for carrying out the methods.
摘要:
The invention provides a method for determining whether a human immunodeficiency virus is resistance to a viral entry inhibitor. The methods are particularly useful for determining resistance to inhibitors that act by a non-competitive mechanism. In certain aspects, the methods comprise determining whether an HIV population is resistant to an HIV entry inhibitor, comprising determining a log-sigmoid inhibition curve comprising data points for entry of the HIV population in the presence of varying concentrations of the HIV entry inhibitor, wherein if the entry of the HIV population cannot be completely inhibited by the HIV entry inhibitor, the HIV population is resistant to the HIV entry inhibitor.
摘要:
Compositions, methods and kits for detecting viral nucleic acids. Targets that can be detected in accordance with the invention include HBV and/or HIV-1 and/or HCV nucleic acids. Particularly described are oligonucleotides that are useful as hybridization probes and amplification primers that facilitate detection of very low levels of HBV nucleic acids.
摘要:
The present invention is based in part on the present inventors' appreciation that certain sequences within an HIV genome are more likely to successfully detect HIV across a breadth of HIV variants. The ability to detect and/or quantify the presence and/or load of HIV in a subject is important to, among other things, the diagnosis and treatment of infected individuals. The present invention is based, in part, on the discovery of oligonucleotide reagents that detectably amplify sequences from a greater breadth of HIV samples than certain prior reagents and/or that generate amplicons from HIV genomes from which certain prior reagents would not have generated amplicons. Oligonucleotide reagents as described herein provide unexpected benefits in the detection and/or quantification of the presence and/or load of HIV in a subject, and thereby in the diagnosis and treatment of HIV.
摘要:
There is disclosed a method of capturing a target nucleic acid, comprising: contacting a target nucleic acid with a capture probe and an immobilized probe, the capture probe comprising a first segment that binds to the target nucleic acid and a second segment that binds to the immobilized probe, wherein the second segment of the capture probe and the immobilized probe comprise L-nucleic acids that can hybridize to one another, wherein the target nucleic acid binds to the first segment of the capture probe, and the second segment of the capture probe binds to the target, thereby capturing the target nucleic acid.
摘要:
Disclosed herein are methods of detecting HIV-1 nucleic acids in a sample (such as from a sample containing or suspected to contain HIV-1 nucleic acid). In some examples, the methods include loop-mediated isothermal amplification (LAMP) or reverse transcription-LAMP (RT- LAMP). In some examples, the methods include contacting a sample with one or more sets of LAMP primers specific for HIV-1 (such as LAMP primers specific for an HIV-1 integrase nucleic acid or LAMP primers specific for an HIV- 1 reverse transcriptase nucleic acid) under conditions sufficient to produce an amplification product and detecting the amplification product. Sets of LAMP primers for detection of HIV-1 integrase nucleic acids (such as SEQ ID NOs: 8-14 or 8-27) and HIV-1 reverse transcriptase nucleic acids (such as SEQ ID NOs: 1-7) are provided herein.
摘要翻译:本文公开了检测样品(例如来自含有或怀疑含有HIV-1核酸的样品)中的HIV-1核酸的方法。 在一些实例中,所述方法包括环介导的等温扩增(LAMP)或逆转录-LAMP(RT-LAMP)。 在一些实例中,所述方法包括使样品与一组或多组特异于HIV-1的LAMP引物(例如对HIV-1整合酶核酸特异的LAMP引物或对HIV-1逆转录酶核酸特异的LAMP引物 )在足以产生扩增产物并检测扩增产物的条件下进行。 本文提供了用于检测HIV-1整合酶核酸(例如SEQ ID NO:8-14或8-27)和HIV-1逆转录酶核酸(例如SEQ ID NO:1-7)的LAMP引物组 。
摘要:
A technique for detecting intact provirus more simply and at a lower cost is provided. A marker showing HIV pathology, comprising near-full-length HIV provirus. A method of testing HIV pathology, comprising evaluating the level of full-length HIV provirus in HIV-infected cells. A method of testing the efficacy of an anti-HIV drug, comprising evaluating the level of near-full-length HIV provirus in HIV-infected cells. A method of screening for drugs that enable a functional cure of HIV, comprising evaluating the level of near-full-length HIV provirus in HIV-infected cells. A method of evaluating the level of near-full-length HIV provirus in HIV-infected cells, comprising detecting 3 to 7 regions scattered across the full length of HIV provirus. Also provided is a kit for evaluating the level of near-full-length HIV provirus, comprising primers capable of amplifying 3 to 7 regions scattered across the full length of HIV provirus and probes capable of detecting the nucleic acid amplified by the primers.
摘要:
The present invention provides novel and non-obvious improvements to dried blood spot testing for HIV-1 viral load useful for diagnosis and monitoring treatment progression.