PBMC Testing: Methods & Techniques

Q: What is your PBMC turnaround, exactly?

Isolation within 8 to 24 hours of collection, with count and viability recorded before the controlled rate freeze. The live page used to answer this question with “it varies”; the real answer is the window above, and the QC report proves it sample by sample.

Q: What viability should we expect?

We deliberately do not advertise a percentage, because viability depends on the draw, the ship and the window as much as the lab. What you get instead is per sample yield, viability and recovery reporting, plus site level trending that catches problems at the source.

Q: Can you process leukopaks?

Yes, into aliquoted, characterized PBMC banks sized to your assay plan, with cord blood and bone marrow handled where protocols call for them.

Q: What runs downstream, and where?

Flow cytometry immunophenotyping and receptor occupancy, ELISpot T-cell response, qPCR and ddPCR expression work and cytokine panels, all in this building, so thaw to data never involves another courier.

Q: How are the cells stored?

Controlled rate freezing into liquid nitrogen under 24/7 monitoring with alarmed excursions, cloud backed records and generator power. Vials are barcoded into Watson LIMS and retained per protocol.

Q: Do you build the collection kits too?

Yes, through the central lab downstairs: PBMC specific tubes, ambient control, site instructions and courier booking designed around the 8 to 24 hour clock, with resupply on the standard five to ten business day timelines.

De-Risk Your PBMC Work, Isolation to Readout.

Brief PhDs on your endpoint, sites and sample count.

PBMC Isolation Within 8 To 24 Hours Of Collection, With Count And Viability QC
Controlled Rate Freezing Into Monitored Liquid Nitrogen Storage With Backup Power
Flow Cytometry, ELISpot And qPCR Downstream In The Same Building, One Custody Chain
Collection Kits And Site Logistics From Our Central Lab, Built Around The Cell Window

Regulated And Inspected By:

Every PBMC Promise Is Really A Clock, And These Are Ours

Time starts the moment the needle comes out, and our workflow is planned from that point. Kits ship ready, isolation runs inside 8 to 24 hours, and cells go into monitored liquid nitrogen at a controlled rate.

PBMC Isolation Inside The 8 To 24 Hour Window

Density gradient isolation on receipt, with the clock tracked from collection time
Count and viability checked and recorded before anything is ever frozen, tube by tube

Kits And Site Logistics Built Around The Cells

Collection kits with the right tubes and ambient control, sites trained on the window
Couriers booked to land inside 24 hours, because the clock starts at the draw, not here

Controlled Rate Freezing Into Monitored LN2

Cryopreservation in DMSO based media with controlled rate freezing, never a dry ice guess
Liquid nitrogen storage under 24/7 monitoring, alarms, cloud records and a generator

Per Sample QC Reporting You Can Enroll Against

Yield, viability and recovery reported for every sample, so bad draws surface immediately
Trends flagged site by site, catching the clinic whose draws consistently arrive late

Leukopak And Bulk PBMC Processing At Bank Scale

Leukopaks processed into aliquoted and characterized PBMC banks for assay development
Cord blood and bone marrow handled where protocols call for them, documented the same

Downstream Assays One Floor Up, Same Custody

Flow cytometry, ELISpot, qPCR and cytokine panels run here, thaw to data in one building
No re-shipment after banking, so the cells you paid to keep alive stay in one place

What Kills PBMC Viability, Hour By Hour

Cells are lost at the draw, in transit, during isolation, at freeze and at thaw. Most go at thaw, so thawed cells enter the assay upstairs without delay.

Hour Zero, The Draw

Wrong tube or rough handling starts the clock badly. The kit and training notes prevent it
Central Lab Services
Hours In Transit

Heat and delay burn viability. Ambient control and same-day shipping keep the window open
Hour 8 To 24, Isolation

Past the window, gradients separate debris. Isolation runs inside it, counted and recorded
The Freeze

A fast freeze shatters cells. Controlled rate into monitored LN2, every vial barcoded
The Thaw

Most viability is lost here, not in storage. Thaw goes straight into the assay upstairs
ELISpot & FluoroSpot
The Readout

Viability QC decides whether data is believed. Counts recorded before any well is scored
Flow Cytometry

Ready To Start? Scope Your PBMC Work.

Tailored PBMC quote in 2 days.

The Cells Start Dying At The Draw, So We Plan Every Step From There

PBMC programs fail on processing delays, cryo technique and thaw protocols. We fix the whole chain before your first site ships.

Talk Science First? Book a Call With Our PBMC Experts.

Discuss endpoint, sites and handling.

Isolation happens within 8 to 24 hours of collection with yield and viability recorded per sample, so you know the quality of every bank before a single downstream assay spends it.
Kits, couriers, isolation, freeze, storage and the downstream assays share one building and one Watson LIMS record, so the custody chain never crosses a vendor boundary to break.
Site level QC trending flags the clinic whose draws keep arriving late while the trial can still fix it, which is worth more than any promise a brochure could print about viability.

8-24Hours From Blood Collection To PBMC Isolation And QC

24/7Monitored LN2 Cryostorage With Generator Backed Power

What Do PBMC Services Cost?

Per sample for isolation, QC and freeze, per month for LN2 storage, per assay for the downstream work, with no minimum batch size, so a six subject pilot and a forty site trial both pay for exactly what they use. A senior scientist replies within two business days.

Your Cost Cannot Move Mid-Study

The quote you approve is the price you pay. Cost cannot move mid-study without an SOW addendum you have already approved, which matters on cell banks that a program draws from for years.

Sponsors On Cells, Kits And Deadlines, Unedited

Two thirds of the 100+ sponsors we serve each year come back, and one in three stays past a third year.

Scientist, Clinical Stage Biotech

I appreciate your team’s willingness to answer questions and provide guidance.
Director, Clinical Stage Biotech

The expertise, competence and responsiveness demonstrated in setting up our clinical trial and preparing and shipping sample kits to the clinical site have been excellent.
Co-Founder, Biotech & University PI

NorthEast BioLab tremendously supported us in reproducing our critical lab discoveries for drug metabolism
Sr. Dir., Bioanalytical Development & QC

NorthEast BioLab offers a science-based, hands-on approach to the latest bioanalytical platforms
VP, Clinical Stage Biotech

The ability to work with our timelines to meet deadlines is very much appreciated.
Dir., Bioequivalence Testing

Our latest successful study was a pivotal bioequivalence study, where samples from a cross-over study with about 100 volunteers needed swift analysis.

Need a PBMC Workflow Designed? Fresh or Cryo.

Share the endpoint and site count. We'll design it.

Why Immunology Teams Trust Us With The Cells Their Endpoints Live In

Our PBMC methods, developed and validated over 20+ years, feed the flow, ELISpot and molecular assays one floor up.

What You Receive

Banked PBMC with per vial count, viability and recovery, recorded before the freeze
A custody record in Watson LIMS from draw time through thaw, one chain, one building
Site by site QC trending that catches handling problems while the trial can still react
Downstream flow, ELISpot, qPCR and cytokine data without re-shipping a single vial

What We Need From You

The protocol sections covering draws and volumes, so kits and windows match the visits
Site list and draw schedule, since couriers are booked around the 8 to 24 hour clock
Your downstream assay plan, because aliquot sizes depend on what the cells will feed
Leukopak sourcing details if banking is the goal, and we can advise on the sourcing

Understanding Cytokines: Their Role in Immunity, Inflammation, and Disease

Cytokines are an integral part of our immune system that helps us respond to diseases. These are signaling or immunomodulating molecules released by innate immune cells….

Cytokine & PD Biomarker Video Read More

One Tube Of Blood To One Data Point: A Representative Path, Step By Step

From draw to bank inside the isolation window, viability is logged at every gate, and thaw happens feet from the destination assay.

1. Kit Ships

PBMC kit with tubes, ambient control and instructions lands at the site
2. Draw And Courier

Blood drawn, shipped same day, the 8 to 24 hour clock already running
3. Isolation

Density gradient on receipt, count and viability recorded per tube
4. Controlled Freeze

DMSO based cryomedia, controlled rate freeze, barcoded into LN2
5. Thaw Upstairs

Vials thaw straight into flow, ELISpot or qPCR without leaving the building
6. Result Delivered

Immunophenotype, T-cell response or expression data into your package

Why Do Sponsors Choose Our Lab For PBMC Processing And Banking?

Because custody stays with us from draw through processing to assay, and viability is a released number on every batch.

Get Your PBMC Workflow Reviewed By PhD Scientists.

Send your plan. We'll flag pitfalls before they cost you.

Isolation in 8 to 24 hours, with yield and viability QC reported for every single sample
Kits, freeze, LN2 storage and downstream assays in one US building, one custody chain
CLIA certified, GLP and GCLP compliant systems behind all clinical PBMC processing
About 70% of our work is emerging biotech, so a pilot bank gets senior scientists

Regulated And Inspected By: