Apr 12, 2024

Public workspaceRobust isolation protocol for mouse leukocytes from blood and liver resident cells for immunology research

  • Dorien De Pooter1,
  • Ben De Clerck1,
  • Koen Dockx2,
  • Domenica De Santis2,
  • Sarah Sauviller1,
  • Pascale Dehertogh1,
  • Matthias Beyens3,
  • Isabelle Bergiers3,
  • Isabel Nájera4,
  • Ellen Van Gulck1,
  • Nádia Conceição-Neto1,
  • Wim Pierson1
  • 1ID Discovery, Infectious Diseases Therapeutic Area, Janssen Research and Development, Beerse, Belgium;
  • 2Charles River Laboratories, Beerse, Belgium;
  • 3Discovery Technologies & Molecular Pharmacology, Therapeutics Discovery, Janssen Research and Development, Beerse, Belgium;
  • 4ID Discovery, Infectious Diseases Therapeutic Area, Janssen Research and Development, California, Brisbane, USA
Open access
Collection CitationDorien De Pooter, Ben De Clerck, Koen Dockx, Domenica De Santis, Sarah Sauviller, Pascale Dehertogh, Matthias Beyens, Isabelle Bergiers, Isabel Nájera, Ellen Van Gulck, Nádia Conceição-Neto, Wim Pierson 2024. Robust isolation protocol for mouse leukocytes from blood and liver resident cells for immunology research. protocols.io https://dx.doi.org/10.17504/protocols.io.81wgbzpz3gpk/v1
License: This is an open access collection distributed under the terms of the Creative Commons Attribution License,  which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Protocol status: Working
We use this collection and it's working
Created: April 01, 2024
Last Modified: April 12, 2024
Collection Integer ID: 98109
Keywords: Liver, Hepatocytes, NPC, IHL, HBV, Hepatitis, immunology, RNAseq, blood, GentleMACS
Abstract
Research on liver-related conditions requires a robust and efficient method to purify viable hepatocytes, lymphocytes and all other liver resident cells, such as Kupffer or liver sinusoidal endothelial cells. Here we describe a novel purification method using liver enzymatic digestion, followed by a downstream optimized purification. Using this enzymatic digestion protocol, the resident liver cells as well as viable hepatocytes could be captured, compared to the classical mechanical liver disruption method. Moreover, single-cell RNA-sequencing demonstrated higher quality lymphocyte data in downstream analyses after the liver enzymatic digestion, allowing for studying of immunological responses or changes. In order to also understand the peripheral immune landscape, a protocol for lymphocyte purification from mouse systemic whole blood was optimized, allowing for efficient removal of red blood cells. The combination of microbeads and mRNA blockers allowed for a clean blood sample, enabling robust single-cell RNA-sequencing data. These two protocols for blood and liver provide important new methodologies for liver-related studies such as NASH, hepatitis virus infections or cancer research but also for immunology where high-quality cells are indispensable for further downstream assays.
Materials
Reagents:

  • RPMI1640 medium with L-glutamine (Lonza, BE12-702F)
  • FCS, frozen (0.22µm filtered Gibco by Thermo Fischer Scientific, 011-90005M)
  • ReagentDulbecco’s PBS (without calcium magnesium)Merck MilliporeSigma (Sigma-Aldrich)Catalog #D8537
  • 10×PBSReagentDPBSMerck MilliporeSigma (Sigma-Aldrich)Catalog #D1408
  • ReagentEthanol ≥70% (v/v) TechniSolv®VWR InternationalCatalog #83801.360
  • ReagentUltraPure DNase/RNase-Free Distilled WaterThermo Fisher ScientificCatalog #10977035
  • DMEM(1×) + 4.5g/l D-glucose + L-glutamineReagentDMEM, high glucoseThermo FisherCatalog #41965039
  • ReagentPercollMerck MilliporeSigma (Sigma-Aldrich)Catalog #17-0891-01
  • ReagentWilliam's E Medium, no phenol redThermo FisherCatalog #A1217601
  • ReagentDebris Removal SolutionMiltenyi BiotecCatalog #130-109-398
  • ReagentTrypan BlueInvitrogen - Thermo FisherCatalog #T10282
  • ReagentCellaca AOPI Viastain NexcelomCatalog #CS2-0106-25mL
  • ReagentUltrapPure 0.5M EDTA pH 8.0Invitrogen - Thermo FisherCatalog #15575020
  • 10% ReagentMACS BSA Stock SolutionMiltenyi BiotecCatalog # 130-091-376
  • ReagentTheraPEAK ACK Lysing BufferLonzaCatalog #BP10-548E

Equipment:

  • ReagentgentleMACS Octo Dissociator with HeatersMiltenyi BiotecCatalog # 130-096-427
  • Surgical instrument set (scissors and tweezers)
  • Sharps container 1.5L (BD, 305624)
  • Pipettors and tips
  • Pipette controller
  • Serological pipettes
  • Water bath (VWR, VWRI462-0057)
  • ReagentLab Armor™ BeadsThermo FisherCatalog #A1254302
  • VACUSAFE aspiration system, 4L PP bottle, tubing fittings (Integra Biosciences, 391-2094)
  • Bottle 4L, PP with closed lid (Integra Biosciences, 158370)
  • Centrifuge with swinging buckets
  • Microscope
  • Cellaca-MX-AOPI cell counter (Nexcelom )

Materials:

  • BD Plastipak Luer-lok syringe 20 mL (BD, 300629)
  • 23G needle HSW HENKE-JECT (Henke Sass Wolf, 4710006025)
  • ReagentLiver Perfusion Kit, mouse and ratMiltenyi BiotecCatalog #130-128-030 containing:
  1. 1 vial of Enzyme D (lyophilized powder)
  2. 1 vial of Enzyme R (lyophilized powder)
  3. 1 vial of Enzyme A (lyophilized powder)
  4. Amount100 mL Buffer P (20×)
  5. Amount1 mL Reagent C
  6. Amount1 mL Reagent E
  • ReagentgentleMAC PerfusersMiltenyi BiotecCatalog #130-128-151
  • ReagentgentleMACS Perfusion SleevesMiltenyi BiotecCatalog #130-128-752
  • GentleMACS ReagentC TubeMiltenyi BiotecCatalog #130-096-334
  • ReagentMACS SmartStrainers (100 µm)Miltenyi BiotecCatalog #130-098-463
  • Tissue Culture Dish (diameter 60 mm) (Falcon, 353002)
  • Tissue Culture Dish (diameter 100 mm) (Falcon, 353003)
  • Falcon Round-Bottom polystyrene tubes 5 mL (Falcon, 352054)
  • Falcon 15 mL Polypropylene conical Tube (Falcon, 352097)
  • Falcon 50 mL Polypropylene conical Tube (Falcon, 352070)
  • Counting slides (Glasstic Slide 10 with grids, Kova, 87144E)
  • 96-well plate U-bottom
  • Cell strainer 100 µm (Falcon, 352360)
  • Celltrics 50 µm strainer (Sysmex, 04-004-2327)
  • Cellaca counting plates (Nexcelom, CHM24-A100-004)
Files
Protocol
Mechanical liver dissociation
Name
Mechanical liver dissociation
Version 1
Wim Pierson
Wim PiersonID Discovery, Infectious Diseases Therapeutic Area, Janssen Research and Development, Beerse, Belgium
Protocol
Enzymatic liver dissociation (with liver perfusion kit)
Name
Enzymatic liver dissociation (with liver perfusion kit)
Version 1
Wim Pierson
Wim PiersonID Discovery, Infectious Diseases Therapeutic Area, Janssen Research and Development, Beerse, Belgium
Protocol
Ex vivo cell isolation
Name
Ex vivo cell isolation
Version 1
Wim Pierson
Wim PiersonID Discovery, Infectious Diseases Therapeutic Area, Janssen Research and Development, Beerse, Belgium
Protocol
Blood sampling, cell isolation, single-cell GEM-generation, globin mRNA blockers and sequencing library preparation protocol
Name
Blood sampling, cell isolation, single-cell GEM-generation, globin mRNA blockers and sequencing library preparation protocol
Version 1
Wim Pierson
Wim PiersonID Discovery, Infectious Diseases Therapeutic Area, Janssen Research and Development, Beerse, Belgium