Devices and method for enrichment and alteration of cells and other particles
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01L-003/00
B03C-001/32
B03C-001/30
C12M-001/00
G01N-033/50
G01N-001/40
G01N-035/00
출원번호
US-0232781
(2011-09-14)
등록번호
US-9174222
(2015-11-03)
발명자
/ 주소
Huang, Lotien Richard
Barber, Thomas
Carvalho, Bruce L.
Kapur, Ravi
Vernucci, Paul
Toner, Mehmet
Wang, Zihua
출원인 / 주소
The General Hospital Corporation
대리인 / 주소
Fish & Richardson P.C.
인용정보
피인용 횟수 :
6인용 특허 :
265
초록▼
The invention features devices and methods for the deterministic separation of particles. Exemplary methods include the enrichment of a sample in a desired particle or the alteration of a desired particle in the device. The devices and methods are advantageously employed to enrich for rare cells, e.
The invention features devices and methods for the deterministic separation of particles. Exemplary methods include the enrichment of a sample in a desired particle or the alteration of a desired particle in the device. The devices and methods are advantageously employed to enrich for rare cells, e.g., fetal cells, present in a sample, e.g., maternal blood and rare cell components, e.g., fetal cell nuclei. The invention further provides a method for preferentially lysing cells of interest in a sample, e.g., to extract clinical information from a cellular component, e.g., a nucleus, of the cells of interest. In general, the method employs differential lysis between the cells of interest and other cells (e.g., other nucleated cells) in the sample.
대표청구항▼
1. A method for transferring particles from a first fluid to a second fluid, wherein said second fluid is different from said first fluid, the method comprising: (a) applying a first fluid comprising particles to a first channel of a device, wherein said device comprises at least two channels;(b) fl
1. A method for transferring particles from a first fluid to a second fluid, wherein said second fluid is different from said first fluid, the method comprising: (a) applying a first fluid comprising particles to a first channel of a device, wherein said device comprises at least two channels;(b) flowing said first fluid through said first channel in said device wherein said first channel comprises at least one array of obstacles that, in response to the flow of said first fluid, laterally displaces said particles within said array towards a second channel, wherein each of said arrays comprises a plurality of rows of obstacles wherein each row comprises a plurality of obstacles and is shifted laterally with respect to a previous row by a distance smaller than a distance between obstacles in said previous row, wherein said distance between obstacles in a row is the same in all rows in a given array, and wherein said lateral shift of rows and said distance cause each of said arrays to direct particles having a hydrodynamic size above a critical size and below said distance between obstacles into the array and in a direction towards said second channel;(c) flowing said second fluid through said second channel in said device and flowing particles laterally displaced in step (b) through said second channel, wherein said second channel is arranged along at least a portion of said at least one array of obstacles in said first channel; and(d) continuing the flow of particles in step (c) until said particles exit said second channel in said second fluid. 2. The method of claim 1, wherein said particles are cells. 3. The method of claim 2, wherein said cells are lysed, stained or labeled in either said first channel or said second channel. 4. The method of claim 3, wherein said cells are fluorescently labeled. 5. The method of claim 1, wherein said particles are contacted in said first channel, said second channel, or in both said channels, with a reagent that chemically or physically alters the particles. 6. The method of claim 1, wherein particles exiting said second channel in step (d) enter a third channel comprising a third fluid, wherein said third fluid is different from said second fluid. 7. The method of claim 1, wherein said device comprises at least one bypass channel that is devoid of obstacles that laterally displace said particles. 8. The method of claim 1, wherein said particles are laterally displaced into a channel in which said particles react with a reagent and the reacted particles are then moved into a separate channel to remove unreacted reagent or reaction byproducts. 9. The method of claim 1, wherein reagents are added to said particles to increase the hydrodynamic size of said particles. 10. The method of claim 1, wherein said first channel comprises at least two arrays of obstacles, and wherein said critical size of the first array is larger than a critical size of the second array. 11. A method for transferring cells from a blood sample to a second fluid, wherein said second fluid is different from said blood sample, the method comprising: (a) applying a blood sample comprising cells to a device, wherein said device comprises at least two channels;(b) flowing said blood sample through a first channel in said device wherein said first channel comprises at least one array of obstacles that, in response to the flow of said blood sample, laterally displaces said cells within said array towards a second channel, wherein each of said arrays comprises a plurality of rows of obstacles wherein each row comprises a plurality of obstacles and is shifted laterally with respect to a previous row by a distance smaller than a distance between obstacles in said previous row, wherein said distance between obstacles is the same in all rows in a given array, and wherein said lateral shift of rows and said distance cause each of said arrays is configured to direct particles having a hydrodynamic size above a critical size and below said distance between obstacles into the array and in a direction towards said second channel;(c) flowing said second fluid through said second channel in said device and flowing the cells laterally displaced in step (b) through said second channel, wherein said second channel is arranged along at least a portion of said at least one array of obstacles in said first channel; and(d) continuing the flow of cells in step (c) until said cells exit said second channel in said second fluid. 12. The method of claim 11, wherein said at least one array of obstacles is configured to separate red blood cells from other cells. 13. The method of claim 12, wherein said other cells are contacted in said first channel, in said second channel, or in both said channels with a reagent that chemically or physically alters the cells. 14. The method of claim 13, wherein said other cells are lysed, stained or labeled in either said first channel or said second channel. 15. The method of claim 14, wherein said other cells are fluorescently labeled. 16. The method of claim 11, wherein said array of obstacles is configured to separate white blood cells from red blood cells and platelets in the blood. 17. The method of claim 16, wherein said white blood cells are contacted in said first channel, and/or in said second channel, or in both said channels with a reagent that chemically or physically alters the cells. 18. The method of claim 11, wherein said cells from said blood sample are laterally displaced into a channel in which said cells react with a reagent and the reacted cells are then moved into a separate channel to remove unreacted reagent or reaction byproducts. 19. The method of claim 11, wherein reagents are added to said cells to increase the hydrodynamic size of said cells.
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