Instruments, modules, and methods for improved detection of edited sequences in live cells

Patent metadata

Field	Value
Publication number	US-10647958-B2
Application number	US-201916693630-A
Country	US
Kind code	B2
Filing date	Nov 25, 2019
Priority date	Aug 14, 2018
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

The present disclosure provides instruments, modules and methods for improved detection of edited cells following nucleic acid-guided nuclease genome editing. The disclosure provides improved automated instruments that perform methods—including high throughput methods—for screening cells that have been subjected to editing and identifying cells that have been properly edited.

First claim

We claim:

1. A singulation assembly for a solid wall singulation or substantial singulation, growth, induction of editing, and normalization or cherry-picking (SWIIN) module comprising:
a retentate member comprising an upper surface and a lower surface, wherein the retentate member comprises at least one retentate distribution channel which traverses the retentate member from its upper surface to its lower surface and for 70% to 95% of a length of retentate member; wherein the lower surface of the retentate member comprises flow directors; wherein the retentate member further comprises one or more retentate member ports configured to supply cells and fluid to and remove cells and fluid from the retentate member; and wherein the retentate member ports are fluidically-connected to the at least one retentate distribution channel and retentate flow directors;
a perforated member with an upper surface and a lower surface, wherein the upper surface of the perforated member is positioned beneath and adjacent to the lower surface of the retentate member and wherein the perforated member comprises at least 25,000 perforations;
a filter with an upper surface and a lower surface, wherein the upper surface of the filter is positioned beneath and adjacent to the lower surface of the perforated member and wherein the lower surface of the filter is positioned above and adjacent to an upper surface of a permeate member; and
the permeate member comprising the upper surface and a lower surface, wherein the permeate member comprises at least one permeate distribution channel which traverses the permeate member from its lower surface to its upper surface and for 70% to 95% of a length of permeate member; wherein the upper surface of the permeate member comprises permeate flow directors; wherein the permeate member further comprises one or more permeate member ports configured to supply fluid to and remove fluid from the permeate member; and wherein the permeate member ports are fluidically-connected to the at least one permeate distribution channel and permeate flow directors; and
adhesive to couple the retentate member, perforated member, filter and permeate member.

2. A SWIIN module comprising the singulation assembly of claim 1 , further comprising:
a reservoir assembly comprising at least two reservoirs wherein
a first reservoir is 1) fluidically-coupled to at least a first reservoir access aperture into which fluids and/or cells flow from outside the SWIIN module into the first reservoir, 2) fluidically-coupled to a reservoir/channel port from which fluids and/or cells flow from the first reservoir into the one or more retentate member ports; and 3) pneumatically-coupled via a first pneumatic access aperture to a pressure source;
a second reservoir is 1) fluidically-coupled to at least a second reservoir access aperture into which fluids flow from outside the SWIIN module into the second reservoir, 2) fluidically-coupled to a reservoir/channel port from which fluids and/or cells flow from the second reservoir into the one or more permeate member ports; and 3) pneumatically-coupled via a second pneumatic access aperture to a pressure source; and
a SWIIN cover.

3. The SWIIN module of claim 2 , further comprising:
two additional reservoirs wherein
a third reservoir is 1) fluidically-coupled to a third reservoir access aperture into which fluids and/or cells flow from outside the SWIIN module into the third reservoir, 2) fluidically-coupled to a reservoir/channel port from which fluids and/or cells flow from the third reservoir into the one or more retentate member ports; and 3) pneumatically-coupled via a third pneumatic access aperture to a pressure source; and
a fourth reservoir is 1) fluidically-coupled to a fourth reservoir access aperture into which fluids and/or cells flow from outside the SWIIN module into the fourth reservoir, 2) fluidically-coupled to a reservoir/channel port from which fluids and/or cells flow from the reservoir into the one or more permeate member ports; and 3) pneumatically-coupled via a fourth pneumatic access aperture to a pressure source.

4. The singulation assembly of claim 1 , wherein the adhesive coupling the retentate member, perforated member, filter and permeate member is a pressure sensitive adhesive.

5. The singulation assembly of claim 1 , wherein the perforated member comprises at least 100,000 perforations.

6. The singulation assembly of claim 5 , wherein the perforated member comprises at least 200,000 perforations.

7. The singulation assembly of claim 1 , wherein the retentate and permeate members are fabricated from polycarbonate, cyclic olefin co-polymer, or poly(methyl methylacrylate).

8. The singulation assembly of claim 1 , wherein the retentate and permeate members are from 75 mm to 350 mm in length, from 50 mm to 250 mm in width, and from 2 mm to 15 mm in thickness.

9. The singulation assembly of claim 8 , wherein the retentate and permeate members are from 150 mm to 250 mm in length, from 100 mm to 150 mm in width, and from 4 mm to 8 mm in thickness.

10. The singulation assembly of claim 1 , wherein there are two retentate distribution channels.

11. The singulation assembly of claim 1 , wherein there are two permeate distribution channels.

12. The singulation assembly of claim 1 , wherein the retentate flow directors are approximately 5 mm across.

13. The singulation assembly of claim 12 , wherein the two permeate distribution channels are approximately 150 mm in length and 1 mm in width.

14. The singulation assembly of claim 1 , wherein the permeate flow directors are approximately 5 mm across.

15. The singulation assembly of claim 1 , wherein a volume of the singulation assembly is from 15 mL to 40 mL.

16. A SWIIN module comprising:
a singulation assembly comprising:
a retentate member comprising an upper surface and a lower surface, wherein the retentate member comprises at least one retentate distribution channel which traverses the retentate member from its upper surface to its lower surface and for 70% to 95% of a length of retentate member; wherein the lower surface of the retentate member comprises retentate flow directors; wherein the one or more retentate member further comprises one or more retentate member ports configured to supply cells and fluid to and remove cells and fluid from the retentate member; and wherein the retentate member ports are fluidically-connected to the at least one retentate distribution channel and retentate flow directors;
a perforated member with an upper surface and a lower surface, wherein the upper surface of the perforated member is positioned beneath and adjacent to the lower surface of the retentate member;
a filter with an upper surface and a lower surface, wherein the upper surface of the filter is positioned beneath and adjacent to the lower surface of the perforated member and wherein the lower surface of the filter is positioned above and adjacent to an upper surface of a permeate member; and
the permeate member comprising the upper surface and a lower surface, wherein the permeate member comprises at least one permeate distribution channel which traverses the permeate member from its lower surface to its upper surface and for 70% to 95% of a length of permeate member; wherein the upper surface of the permeate member comprises permeate flow directors; wherein the permeate member further comprises one or more permeate member ports configured to supply fluid to and remove fluid from the permeate member; and wherein the one or more permeate member ports are fluidically-connected to the at least one permeate dist

Assignees

• Inscripta Inc

Inventors

• Belgrader Phillip
• Masquelier Don
• Chabansky Bruce
• Bernate Jorge
• Garst Andrew
• Fox Richard

Classifications

• C12N15/102

  Mutagenizing nucleic acids · CPC title

• C12M47/04 Primary

  Cell isolation or sorting (purging biological preparations of unwanted cells C12N5/0081, determining the presence or kind of microorganism C12Q1/04) · CPC title

• C12M47/02

  Separating microorganisms from the culture medium; Concentration of biomass (separating microorganisms from their culture media C12N1/02) · CPC title

• C12M29/04

  Filters; Permeable or porous membranes or plates, e.g. dialysis · CPC title

• C12M33/00

  Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus (chemical or physical laboratory apparatus in general B01L, devices for taking cell samples A61B10/0045, withdrawing or distributing predetermined quantities of fluid B01L99/00) · CPC title