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4354 citations found

Tim4, a macrophage receptor for apoptotic cells, binds polystyrene microplastics via aromatic-aromatic interactions

Kuroiwa, M;Yamaguchi, S;Kato, Y;Hori, A;Toyoura, S;Nakahara, M;Morimoto, N;Nakayama, M;

Product: Unspecified List Labs LPS

  • … In brief, mouse peritoneal cells were primed with the indicated concentration of ultra-pure lipopolysaccharide (LPS; List Biological Lab) for 3 h and then stimulated with indicated concentration of particles …

    Author did not specify which List Labs LPS product was utilized in their research.
    List Labs provides the following LPS products:

Carnosic acid inhibits NLRP3 inflammasome activation by targeting both priming and assembly steps

Lin, G;Li, N;Li, D;Chen, L;Deng, H;Wang, S;Tang, J;Ouyang, W;

Product: Cholera Toxin B Subunit (Choleragenoid) from Vibrio cholerae in Low Salt

Neuroprotective effect of Vesatolimod in an experimental autoimmune encephalomyelitis mice model

Jiang, X;Song, Y;Fang, J;Yang, X;Mu, S;Zhang, J;

Product: Pertussis Toxin from B. pertussis, Lyophilized in Buffer

Phosphoenolpyruvate regulates the Th17 transcriptional program and inhibits autoimmunity

Huang, TY;Hirota, M;Sasaki, D;Kalra, RS;Chien, HC;Tamai, M;Sarkar, S;Mi, Y;Miyagi, M;Seto, Y;Ishikawa, H;

Product: Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)

  • Pertussis toxin List Labs Cat#181

    EAE induction
    8-week-old, female C57BL/6 mice were s.c. injected with MOG35–55 peptides (300 mg per mouse) emulsified in complete Freund’s adjuvant (CFA) (200 μL per mouse) containing dead Mycobacterium tuberculosis (1 mg per mouse) on day 0. On days 0 and 2, pertussis toxin (400 ng per mouse) was intraperitoneally injected into mice. …

    Product #181 – Pertussis Toxin from B. pertussis, Lyophilized (Salt-Free)

Itaconate ameliorates autoimmunity by modulating T cell imbalance via metabolic and epigenetic reprogramming

Aso, K;Kono, M;Kanda, M;Kudo, Y;Sakiyama, K;Hisada, R;Karino, K;Ueda, Y;Nakazawa, D;Fujieda, Y;Kato, M;Amengual, O;Atsumi, T;

Product: Pertussis Toxin from B. pertussis, Lyophilized in Buffer

  • Active EAE model

    EAE was induced by immunizing C57BL/6J mice with myelin oligodendrocyte glycoprotein (MOG)35-55 peptide (100 μg per mouse, ANASPEC, 60130-5) and complete Freund’s adjuvant (CFA) containing 4 mg ml−1 (0.4 mg per mouse) of heat-killed Mycobacterium tuberculosis (Chondrex, 7001)24. Mice were intraperitoneally injected with pertussis toxin (PTX, 250 ng/mouse, List Biological Laboratories, 180) on days 0 and 2. PBS or ITA (50 mg kg−1) was intraperitoneally injected every other day from day 0 to day 14. An ITA solution was adjusted to pH 7.4 with 1 N NaOH at 37 °C. …

    Product #180 – Pertussis Toxin from B. pertussis, Lyophilized in Buffer

Product: Pertussis Toxin from B. pertussis, Lyophilized in Buffer

  • 4.5. EAE Induction and Clinical Evaluation of Experimental Mice

    Mice were divided in a random manner into four groups (six mice in each group), including: group 1: naïve, untreated control mice; group 2: MCP-immunized EAE mice; group 3: MCP was immunized and BEY was administered from day 3 to day 27; group 4: BEY orally administered to mice from day 3 to day 27 of experiment. Mice were immunized with MOG35–55 (100 μg; Peptide International) emulsified in complete Freund’s adjuvant (CFA; Sigma-Aldrich, St Louis, MO, USA) containing 10 mg/mL heat-killed Mycobacterium tuberculosis H37Ra (Difco Laboratories, Detroit, MI). The mice were injected intraperitoneally with pertussis toxin (PTX) (List Biological Laboratories, Detroit, MI; 500 ng) on days 0 and 2. A total of 200 µL of emulsion (MCP) was administered subcutaneously on mice’s flanks at four locations. …

    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)

Age-related changes in basal forebrain afferent activation in response to food paired stimuli

Somera, B;Frick, M;Fadel, JR;

Product: Cholera Toxin B Subunit (Choleragenoid) from Vibrio cholerae in Low Salt

  • 2.2. Surgery

    Under isoflurane anesthesia, 1.0 µl of a 1 % solution of the retrograde neuronal tract tracer cholera toxin B subunit (CTb; Lot #10331A1; List Biological Laboratories, Inc., Campbell, CA) was unilaterally deposited into the basal forebrain (n = 6–8/group) using the following stereotaxic coordinates, relative to Bregma [16]: anterior (AP) −0.8 mm, lateral (L) +/- 2.5 mm, ventral (DV) –8.0 mm (from skull surface). Left and right hemispheres were equally represented. CTb was pressure injected over a 10 min interval (0.1 µl/min) and the needle remained in place for an additional 10 min post-infusion to allow diffusion away from the needle tract. Animals whose CTb deposits were not centered in the VP/SI, based on post-mortem immunohistological labeling, were excluded from analysis. Prophylactic buprenorphine (0.02 mg/kg, s.c.; Med-Vet International, Mettawa, IL) was given at the conclusion of surgery to minimize post-operative pain during emergence from anesthesia. Animals were allowed one week recovery from surgery, while handling, habituation, and food intake measurement continued.

    Product #104 – Cholera Toxin B Subunit (Choleragenoid) from Vibrio cholerae in Low Salt

Novel role of GPR109A in thymic regulatory T cell development

Macia, L;Ni, D;Tan, J;Robert, R;Taitz, J;Ge, A;Potier-Villette, C;Reyes, J;Spiteri, A;Wishart, C;Mackay, C;Piccio, L;King, N;

Product: Pertussis Toxin from B. pertussis, Lyophilized in Buffer

Effects of Ca2+ ions on the horseshoe crab coagulation cascade triggered by lipopolysaccharide

Yamashita, K;Takahashi, D;Yamamoto, Y;Kiyomoto, S;Shibata, T;Kawabata, SI;

Product: LPS from Salmonella minnesota R595 (Re)

Transformation of a Metal Chelate into a Catch and Anchor Inhibitor of Botulinum A Protease

Lin, L;Patel, E;Nielsen, A;Turner, L;Tepp, W;Nguyen, K;Pellett, S;Janda, K;

Product: SNAPtide® Peptide Substrate (FITC/DABCYL) for C. botulinum Type A Neurotoxin

  • 3. Experimental

    3.1. Assays

    3.1.1. General
    All biochemical analyses and cell assays were performed as previously reported by Lin et al. [22] and Turner, Nielsen et al. [14] with the following modifications.

    3.1.2. SNAPtide Enzyme Activity Assay
    The assay was conducted as previously described [22]. The final assay concentrations are as follows: SNAPtide substrate #523 = 4 µM; BoNT/A LC = 10 nM; assay buffer = 40 mM HEPES pH 7.4, 0.01% Triton X-100, 1% DMSO.

    3.1.3. Screening
    Initial compound screening was performed at room temperature with SNAPtide substrate #521 (List Labs, Campbell, CA, USA) at a compound concentration of 40 µM.

    3.1.4. Endpoint Assay
    In total, 500 nM BoNT/A LC was incubated with 5 µM of each compound for 30 min at 37 °C. At the indicated timepoints, 2 µL aliquots were quenched in 48 µL of SNAPtide #523 substrate (25-fold dilution) to give a SNAPtide assay final concentration of 20 nM BoNT/A LC and 0.2 µM compound.