Compositions and Methods to Monitor RNA Delivery to Cells
First Claim
1. An isolated composition comprising an optically or magnetically detectable nanoparticle and an RNAi agent.
3 Assignments
0 Petitions
Accused Products
Abstract
Methods and compositions for tracking or monitoring uptake of siRNA by mammalian cells are provided. The methods and compositions may be used to monitoring the silencing activity of the internalized siRNA. The compositions contain an siRNA, an optically or magnetically detectable nanoparticle such as a quantum dot and, optionally, a transfection reagent. Cells are contacted with an siRNA and an optically or magnetically detectable nanoparticle, optionally in the presence of a transfection reagent. Detection of internalized nanoparticles is indicative of siRNA uptake. The invention allows analysis, identification, processing, etc., of cells that have efficiently taken up siRNA. In one embodiment, cells are sorted into at least two populations based on the amount of siRNA taken up.
81 Citations
88 Claims
- 1. An isolated composition comprising an optically or magnetically detectable nanoparticle and an RNAi agent.
-
11. (canceled)
-
14. (canceled)
-
18-30. -30. (canceled)
-
31. A kit comprising:
- an optically or magnetically detectable nanoparticle and an RNAi agent.
-
32-40. -40. (canceled)
-
41. A method of monitoring delivery of a functional RNA to a cell comprising steps of:
-
(a) contacting the cell with an optically or magnetically detectable nanoparticle and a functional RNA; and (b) analyzing the cell to detect the presence, absence, or amount of the nanoparticle in the cell, wherein presence of the nanoparticle in the cell is indicative of presence of the functional RNA in the cell. - View Dependent Claims (43, 44, 45, 49)
-
-
42. (canceled)
-
46-48. -48. (canceled)
-
50-69. -69. (canceled)
-
70. A method of sorting cells comprising steps of:
-
(a) contacting cells with an optically or magnetically detectable nanoparticle and a functional RNA; (b) analyzing the cells to detect the presence, absence, or amount of the nanoparticle in the cells; and (c) identifying the cells as belonging to one of at least two populations based on the presence, absence, or amount of the nanoparticle in the cells. - View Dependent Claims (74)
-
-
71-73. -73. (canceled)
-
75-82. -82. (canceled)
-
83. A method of monitoring gene silencing in a cell comprising steps of:
-
(a) contacting the cell with an optically or magnetically detectable nanoparticle and an RNAi agent targeted to a gene; and (b) analyzing the cell to detect the presence, absence, or amount of the nanoparticle in the cell, wherein presence of the nanoparticle in the cell is indicative of silencing of the gene by the RNAi agent. - View Dependent Claims (84, 86, 87)
-
-
85. (canceled)
-
88-115. -115. (canceled)
Specification