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13 protocols using anti mouse pd 1

1

Immune Checkpoint Inhibitor Therapy in Murine Tumor Model

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InVivoMAb Anti-mouse PD-1 (10 mg/kg, clone J43, Bioxcell, West Lebanon, NH, USA), InVivoMAb anti-mouse CTLA-4 antibody (1 mg/kg, clone 9H10, Bioxcell), or InVivoMAb hamster anti-mouse IgG control antibodies (clone N/A, catalog # BE 0091, Bioxcell) were administered every other day for a total of four doses by intraperitoneal (i.p.) injection. The first dose was administered upon the larger tumors reaching 100 to 200 mm3, except for mice allocated to groups receiving androgen deprivation therapy in which case first dose was given 4 days after initiation of androgen deprivation therapy. When employed, androgen deprivation was induced by degarelix (Ferring Pharmaceuticals, Saint Prex, Switzerland), administered in single s.c. dose of 25 mg/kg upon the larger tumor graft reaching a volume of 300–400 mm3.
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2

Evaluating Anti-CD200R1 Adenovirus Therapy

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Female C57BL/6 mice and C57BL/6-Tg (Foxp3-GFP)90Pkraj/J (The Jackson Laboratory, Bar Harbor, ME, USA) of 6 to 8 weeks old were inoculated subcutaneously with 1 × 106 MEER/CD200High or MEER/control cells. When tumors were palpable (approximately day 10 to 13), 5 × 108 PFUs of adenovirus were injected intratumorally 3 times at 4-day intervals. Tumors were harvested from the mice after euthanasia, and tumor tissues were then dissociated using a tumor dissociation kit (Miltenyi Biotec, Bergisch Gladbach, Germany). For macrophage depletion studies, 1.4 mg of a clodronate liposome formulation, Clophosome (FormuMax Scientific, Sunnyvale, CA, USA), was intraperitoneally injected before the first injection of adenovirus and was then administered (0.7 mg) every 4 days for a total of three treatments. For CD8+ T cell depletion studies, an anti-CD8 depletion antibody (clone 2.43) was injected intraperitoneally one day before virus injection and was then administered (500 μg) 6 times at 5-day intervals. For combination therapy of AdsCD200R1 with anti-PD1 antibodies, anti-mouse PD-1 (Bioxcell, Lebanon, NH, USA) was injected intraperitoneally (400 μg) 4 times at 4-day intervals. Tumor volumes were determined using the following formula: tumor volume (mm3) = length × width2 × 0.5236.
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3

Mouse MerTK-specific ASO for Immune Profiling

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A mouse MerTK-specific ASO and control ASOs were produced by Ionis Pharmaceuticals, Inc. Anti-mouse CTLA-4 (Catalog# BP0164) and anti-mouse PD-1 (Catalog# BE0146) were purchased from BioXCell. Liberase (Catalog #05401127001) and DNAse (Catalog #4716728001) were purchased from Roche and Sigma-Aldrich, respectively. Flow cytometry antibodies, including αCD45-PerCP Cy5.5 (Catalog# 103131), αCD4-PE/Dazzle594 (Catalog# 100456), αCD8-FITC (Catalog# 100706), αGranzyme B (GrB)-Pacific Blue (Catalog# 515408), αGr1-BV510 (Catalog# 108437), αCD11b-APC Fire750 (Catalog# 101262), αF4/80-Alexa Fluor 700 (Catalog# 123130), αCD38-PE-Cy7 (Catalog# 102718), αCD206-PE (Catalog# 141706), and αMertK-APC (Catalog# 151507) were ordered from BioLegend.
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4

Xenograft Tumor Mouse Model for Avastin and Fc-VFD

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BALB/C Nu and C57BL/6JNarl mice were purchased from National Laboratory Animal Center (Taiwan). The mice were aged 5 weeks and weighed 18–21 g. The HCT15 cell sediment was rinsed twice with PBS and resuspended in PBS with Matrigel Matrix (Corning), with the cell concentration regulated to 1 × 106 /ml. Each mouse was injected subcutaneously at one side. After 1 week, when the tumors had grown to 50–100 mm3, the tumor-bearing nude mice were randomly divided into four groups (n = 6 per group) as follows: The control group (each mouse was intraperitoneally injected with 100 µl PBS twice a week, for a total of eight times); the Avastin group, Avastin (Roche, Basel, Switzerland) was intraperitoneally injected at different doses twice a week for a total of eight times; and the Fc-VFD group, Fc-VFD was intraperitoneally injected at different doses every other day, for a total of eight times. Starting from the first day of treatment, the tumor size was measured daily. For drugs combination experiments, B16/F10 mouse melanoma cancer cells (5 × 104 cells/ml) was injected subcutaneously into C57BL/6JNar mouse followed by the same treatment of drugs InViVoMab anti-mouse PD-L1 (BioXcell, SKU: BE0101), anti-mouse PD-1 (BioXcell, USA), and mouse IgG2b control (BioXcell, SKU: BE0090) by intraperitoneal injection stated above.
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5

Tumor Immunotherapy Protocol

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Anti-mouse Tim-3 (clone: RMT3-23), anti-mouse PD-1 (clone: J43), anti-mouse Lag-3 (clone: C9B7W), Rat IgG isotype control (clone: 2A3) and polyclonal American hamster IgG were purchased from Bioxcell company for tumor therapy. For Flow cytometry, anti-mouse CD45 (clone: 30-F11), anti-mouse CD4 (clone: GK1.5), anti-mouse CD8a (clone: 53–6.7), anti-mouse Foxp3 (MF23), anti-mouse γδTCR (clone: GL3), anti-mouse CD103 (clone: M290), anti-mouse Tim-3 (clone: 5D12), anti-mouse Lag-3 (clone: C9B7W), anti-mouse Lag-3 (clone: C9B7W), anti-mouse CD206 (clone: MR5D3), anti-mouse CD62L (clone: MEL-14), anti-mouse CD44(clone: IM7), anti-mouse OX40 (OX-86), anti-mouse IL7R (clone: SB/199), anti-mouse GITR (clone:DTA-1) and anti-mouse CD11b (clone: M1/70) were purchased from BD Bioscience. anti-mouse Ki67(clone: SolA15), IFN-γ (clone: XMG1.2), CD11b (M1/70) were purchased from ebioscience. anti-mouse B220 (clone: RA3-6B2), anti-mouse CD8a (clone: 53–6.7), anti-human/mouse Granzyme B (clone: GB11), anti-mouse Granzyme A (clone: 3G8.5), anti-mouse MHC II (clone: M5/114.15.2), anti-mouse Gr-1 (clone: RB6-8C5), anti-mouse CD24 (clone: M1/69), anti-mouse F4/80 (clone: BM8) and anti-mouse NK1.1 (clone: PK136) were purchased from Biolegend. Mitotracker Deep Red FM labeling kit was purchased from Invitrogen. Ghost 510 and Zombie NIR dye was purchased from Tonbo Biosciences and Biolegend.
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6

Tumor Immunotherapy Combination Protocol

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All DsiRNAs were synthesized by Integrated DNA Technologies (IDT, Coralville, IA). Primer and probe oligonucleotides used in real-time qPCR detection were synthesized by IDT or Life Technologies (Carlsbad, CA). Monoclonal antibodies (anti-mouse PD-1, anti-mouse CTLA-4, and anti-mouse CD8α) were purchased from Bio X Cell (Lebanon, NH). Tumor dissociation kit and Smart Strainers used to make single-cell suspension were purchased from Miltenyi Biotec (Bergisch Gladbach, Germany). Monoclonal antibodies used for flow cytometry were purchased from BioLegend (San Diego, CA). DCR-BCAT and Placebo LNPs were prepared as previously described.19 (link) Anti PD-1 antibody, anti-CTLA-4 antibodies, and anti-CD8a antibodies were diluted in PBS and administered intraperitoneally. DCR-BCAT and DCR-Placebo (LNP with chemistry-matched, scrambled CTNNB1 DsiRNA) were given intravenously. LGK-974 was purchased from Selleckchem.com (Houston, TX). LGK-974 was dissolved in DMSO (2%) and Corn Oil (solvents added individually and in order) and was administered orally.
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7

Tumor Growth Inhibition by Immune Checkpoint Blockade

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The tumor cell lines tested negative for mycoplasma infection and Plasmocin (InvivoGen) was used as a routine addition to the culture media to prevent mycoplasma contamination. The mice were inoculated with 1–1.5 × 105 B16F10-OVA cells or 2 × 106 MC38-OVA cells s.c. into the right flank. The mice were i.p. injected at the indicated time points with either 200 μg anti-PD-1 (29F1. A12, InVivoPlus anti-mouse PD-1, Bioxcell), anti-CTLA-4 (9H10, InVivoPlus anti-mouse CTLA-4, Bioxcell) or the respective isotype controls (anti-CTLA-4 isotype control, InVivoPlus polyclonal Syrian hamster IgG, Bioxcell; anti-PD-1 isotype control, InVivoPlus rat IgG2a isotype control, anti-trinitrophenol, Bioxcell). Tumor size was monitored every other day and tumors were harvested at the indicated time points for the analysis of tumor-infiltrating lymphocytes. Tumor volume was calculated as ½ × D × d2, where D is the major axis and d is the minor axis, as described previously45 (link). Tumor growth was monitored at least three times a week to ensure that the tumors did not exceed 25 mm in diameter.
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8

Interrogating Regulated Cell Death Pathways

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Antibodies against MLKL (D6W1K) (#37705), MLKL (D2I6N) (#14993), Phospho-MLKL(Ser345) (D6E3G) (#37333), Phospho-MLKL(Ser358) (D6H3V) (#91689), RIP3 (E1Z1D) (#13526), XBP1 (E9V3E) (#40435), BIP (C50B12) (#3177), eIF2α (D7D3) (#5324), Phospho-eIF2α(Ser51) (D9G8) (#3398), Poly/Mono-ADP Ribose (E6F6A) (#83732), VDAC (D73D12) (#4866), GAPDH (14C10) (#2118) and β-Actin (13E5) (#4970) were purchased from Cell Signaling Technology. Anti-DFNA5/GSDME (#ab215191) and anti-AIF (#ab32516) were purchased from Abcam. Anti-Calnexin (#10427–1-AP) was purchased from Proteintech. Antibody against Histone H2A Rabbit mAb (#A3692) was purchased from ABClonal. Anti-mouse PD-1 (#BE0146) was purchased from BioXcell.
Sodium palmitate (#S161420) was purchased from Aladin. BSA (Fatty Acid & IgG Free) (#ST025) was purchased from Beyotime. Necrostatin-1 (#S8037), ferrostatin-1 (#S7243), Z-VAD-FMK (#S7023), Birinapant (#S7015), Olaparib (AZD2281) (#S1060), Ceapin-A7 (#E1099), GSK2606414 (#S7307), 4μ8C (HY-19707) (#S7272), and MNNG (#E0157) were obtained from Selleck Chemicals. SYTOX Green and Magnesium Green were purchased from Thermo Fisher Scientific. Recombinant murine and human TNF-α were purchased from Peprotech.
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9

Targeted Immune Depletion in Lung Cancer

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For immune-checkpoint blockade therapy to the two-tumor models of LLC, 344SQ-P and 344SQ-R, a 200 μg/dose of anti-mouse-PD-1 (Bio X Cell, clone RMP1–14) in 250 μL sterile PBS was given intraperitoneally twice a week, beginning on the first day of radiation and continuing until death or experimental endpoint. Macrophage depletion to the two-tumor model of LLC was accomplished by alternating intraperitoneal/intratumor injections of 100 μg/dose of anti-mouse F4/80 (Bio X Cell, clone CI: A3–1) starting on day 5, for up to 10 days, and then twice a week thereafter [19 (link)]. CD8+ and CD4+ T cells to the LLC two-tumor model were depleted by intraperitoneally injected anti-CD8 (10mg/kg, CI:A3–1, BioXCell) and anti-CD4 (10mg/kg, clone GK 1.5, BioXCell) on day 5 and twice a week thereafter. Cellular depletion of macrophages, CD8+ T cells, and CD4+ T cells was confirmed by flow cytometry.
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10

Formulation and Characterization of CGMP R-DOTAP Liposomal Nanoparticles

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Current good manufacturing practice–grade (CGMP) R-DOTAP was provided by Merck & Cie (Shaffhausen, Switzerland). CGMP R-DOTAP liposomal nanoparticles were produced by Evonik (Vancouver, Canada) according to protocols described previously (32 (link)). CGMP peptide Ags (Table I) were provided by AmbioPharm (North Augusta, SC). Research-grade synthetic peptide Ags were synthesized and purified to >95% purity by GenScript (Piscataway, NJ). Fluorochrome-conjugated mouse monoclonal anti-mouse CD3 (clone: 145-2c11), CD4 (clone: GK1.5), CD8 (clone: YTS165.7.7), NKP36 (clone: 29A1.4), CD11b (clone: M1/70), IFN-γ (clone: XMG1.2), TNF-α (clone: MP6-XT22), and IL-2 (clone: JES6.5H4), were purchased from BioLegend (San Diego, CA). Fluorochrome-conjugated anti-mouse CD69 (clone: H1-2F3) and anti-mouse CD11c (clone: HL3), were purchased from BD Biosciences (San Jose, CA). Fluorochrome-conjugated anti-mouse monoclonal Foxp3 (clone: FJK-16s) and CD25 (clone: PC61.5) were purchased from eBioscience (San Diego, CA). Allophycocyanin-labeled H2-Db E749–57 (RAHYNIVTF) loaded MHC class I dextramers were purchased from Immudex (Fairfax, VA). Anti-mouse PD-1 (clone: RMP1-14) was purchased from Bio X Cell (West Lebanon, NH).
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