Bacterial Toxin Research Citations

… pertussis toxin (List Biological Laboratories, Campbell, CA) was injected i.p. at day 0 and day 2. In SJL/J relapsing–remitting EAE experiments, 9-wk-old SJL/J female mice were induced to EAE as described above using …

Author did not specify which List Labs Pertussis Toxin was utilized. List Labs provides the following Pertussis Toxin products:
• Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer
• Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)
• Product #179A – Pertussis Toxin from B. pertussis (in Glycerol)

… Mice were injected i.p. with 20 µg/kg of pertussis toxin (PTX) (List Biological Laboratories) immediately after and 2 d postimmunization …

Author did not specify which List Labs Pertussis Toxin was utilized. List Labs provides the following Pertussis Toxin products:
• Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer
• Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)
• Product #179A – Pertussis Toxin from B. pertussis (in Glycerol)

2.2 Mice and cells

,,, Loosely adherent bone marrow derived dendritic cells (BMDCs) were collected after seven days. BMDCs were incubated 36 hours with 10 ng/mL Ultrapure Salmonella minnesota LPS (List Biologicals Laboratories, Campbell, CA) to generate activated DCs.

• Product #434 – ULTRA PURE LPS from Salmonella minnesota R595 (Re)

Induction and Assessment of EAE

EAE was induced in 8–12-week-old female BCMA−/− mice along with age- and sex-matched BCMA+/+ control mice. Mice were immunized with 150 μg MOG35–55 (Genemed Synthesis Inc., San Antonio, TX) emulsified in complete Freund adjuvant (1.5 mg/mL heat-killed Mycobacterium tuberculosis), followed by an IP injection of 250 ng Bordetella pertussis toxin (List Biological Labs, Inc., Campbell, CA) in phosphate-buffered saline (PBS) at the time of and 2 days after immunization. …

Author did not specify which List Labs Pertussis Toxin was utilized. List Labs provides the following Pertussis Toxin products:
• Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer
• Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)
• Product #179A – Pertussis Toxin from B. pertussis (in Glycerol)

Western blot

To detect PT production by Western blot, to a 1.0 mL aliquot of culture supernatant, ¼ volume of 100% TCA was added, mixed, and the sample was held on ice for 1 h. Samples were centrifuged at 16,000 × g for 30 min at 4 °C and the supernatant was removed. The TCA-precipitated protein pellet was resuspended in 120 µL 1 × NuPAGE SDS Sample Buffer (Invitrogen) in the presence of 1 × NuPAGE Reducing Agent (Invitrogen) and denatured at 90 °C for 10 min. A 10 µL sample (equal to 0.25 OD600 units of cell culture supernatant) was fractionated on NuPAGE 4 ~ 12% Bis–Tris Gel (Invitrogen) in NuPAGE MES SDS Running Buffer (Invitrogen), alongside SeeBlue Plus2 Pre-Stained Standard (Invitrogen) and purified PT containing subunits S1–S5 (List Biological Laboratories, Inc.), loaded in the amounts indicated in Fig. 6. Separated proteins were transferred to PVDF filter paper (Invitrogen) according to the manufacturer’s instructions. …

Author did not specify which List Labs Pertussis Toxin was utilized. List Labs provides the following Pertussis Toxin products:
• Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer
• Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)
• Product #179A – Pertussis Toxin from B. pertussis (in Glycerol)

2.1 Cell lines and reagents

… Enterotoxin Type B from Staphylococcus aureus (SEB, List Biological Laboratories …

2.2.1 Day-to-day profiling of T cell activation

The assay was run using cryopreserved human PBMCs from a single healthy donor and were allowed to recover for 24 hours before use. On day 0, we stained human PBMCs with cell proliferation tracing dye (excitation: 488 nm and emission: 530/30 nm) and washed 3 times before plating into a 96-well plate at 2 million/mL (50 μL/well). We treated the cells by adding 50 μL/well of 3 different T-cell modulators in the respective wells: CD3/CD28 Dynabeads, PHA, or SEB. We performed an 11-point, 1:2 serial titration with duplicate wells per dose for each selected treatment. The final top concentration of the treatment in the assay well was 1 million/mL CD3/CD28 Dynabeads, 10 μg/mL PHA, or 100 ng/mL SEB, respectively. …

… The MOG35 55 peptide was administered in the left paralumbar region. Immediately after the first injection and 48 h later, 200 ng of the pertussis toxin (List Biological Industries, San Diego, CA, USA) was intraperitoneally (i.p.) administered as previously described [3]. All the animals were examined daily and evaluated for clinical signs of EAE. …

Author did not specify which List Labs Pertussis Toxin was utilized. List Labs provides the following Pertussis Toxin products:
• Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer
• Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)
• Product #179A – Pertussis Toxin from B. pertussis (in Glycerol)

PBMC stimulation and flow cytometry staining

Cells were stimulated at the concentration of 5 million per milliliter for 12 h in presence of 2 μg/ml GAG PTE peptides (AIDS Reagent Program, Division of AIDS, National Institute of Allergy and Infectious Diseases [NIAID], National Institutes of Health [NIH]: HIV-1 PTE Gag Peptide Pool from NIAID, Division of AIDS), 1 μg/ml of staphylococcal enterotoxins B (SEB; List Biological Laboratories) or medium (negative control). …

… Two tetanus toxins (TTxn, from List Biologicals; product code #190B, and from HuA) were used to assess mAb binding to native toxin …

• Product #190 – Tetanus Toxin from Clostridium tetani

Reagents

… Pertussis toxin (PTX) from Bordetella pertussis, was obtained from List Biological Laboratories, …

Author did not specify which List Labs Pertussis Toxin was utilized. List Labs provides the following Pertussis Toxin products:
• Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer
• Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)
• Product #179A – Pertussis Toxin from B. pertussis (in Glycerol)