Peripheral blood mononuclear cells (PBMCs) from healthy donors were isolated using a Ficoll density gradient. Buffy coats from healthy donors were obtained from Établissement Français du Sang in accordance with INSERM ethical guidelines. CD4+ T cells were purified using the total CD4+ negative isolation kit (Miltenyi Biotec; 130-096-533). Primary CD4+ T cells were activated in six-well plates coated with anti-CD3e (OKT3; 317326; BioLegend) in presence of soluble anti-CD28 (CD28.2; 302914; BioLegend) during 6 d before use and cultured in RPMI1640 Glutamax (Thermo Fisher Scientific; 61870-010) supplemented with 10% FCS (Eurobio, CVFSVF00-01), 10,000 U/mL penicillin-streptomycin (Gibco; 15140-122), 1 M Hepes (Gibco, 15630-056), 50 mM 2-Mercaptoethanol (Gibco; 31350-010) and 20 U/mL recombinant IL-2 (Immunotools; 11340025).
Rpmi 1640 glutamax
RPMI 1640 GlutaMAX is a cell culture medium formulated to support the growth and maintenance of a variety of cell lines. It provides a balanced salt solution with amino acids, vitamins, and other essential components required for cell cultivation.
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336 protocols using rpmi 1640 glutamax
Jurkat T Cell and Primary CD4+ T Cell Culture
Peripheral blood mononuclear cells (PBMCs) from healthy donors were isolated using a Ficoll density gradient. Buffy coats from healthy donors were obtained from Établissement Français du Sang in accordance with INSERM ethical guidelines. CD4+ T cells were purified using the total CD4+ negative isolation kit (Miltenyi Biotec; 130-096-533). Primary CD4+ T cells were activated in six-well plates coated with anti-CD3e (OKT3; 317326; BioLegend) in presence of soluble anti-CD28 (CD28.2; 302914; BioLegend) during 6 d before use and cultured in RPMI1640 Glutamax (Thermo Fisher Scientific; 61870-010) supplemented with 10% FCS (Eurobio, CVFSVF00-01), 10,000 U/mL penicillin-streptomycin (Gibco; 15140-122), 1 M Hepes (Gibco, 15630-056), 50 mM 2-Mercaptoethanol (Gibco; 31350-010) and 20 U/mL recombinant IL-2 (Immunotools; 11340025).
Generation and Differentiation of Macrophages and Dendritic Cells
For differentiation into monocyte-derived dendritic cells (moDC), monocytes were cultivated with IL-4 (250 IU/mL; Peprotech) and GM-CSF (800 IU/mL; Peprotech) for 7 days, refreshing the cytokines every 2–3 days. After 6–7 days, for differentiation into mature moDCs, DCs were supplemented with IL-6 (2,000 IU/mL; Peprotech), IL-1β (400 IU/mL; Peprotech) and TNFα (2000 IU/mL; Peprotech).
For co-cultures with genetically modified CD4 T cells, autologous monocytes were kept in RPMI 1640 GlutaMAX supplemented with 10% FBS and Penicillin-Streptomycin (100 IU/mL) containing M-CSF (100 ng/mL; Peprotech) for 15 days to differentiate them into MDMs before adding IL-4 (20 ng/mL; Peprotech) for one additional day prior to starting co-culture.
Isolation and Differentiation of Human Monocyte-Derived Microglia
Culturing Human Carcinoid Cell Lines
CNDT2 is a human midgut carcinoid cell line kindly provided by Lee M. Ellis M.D. Anderson Center Texas USA [28 (link)] and grown in DMEM/F12 with 15 mM HEPES (Life Technologies, Carlsbad, CA, USA) supplemented with 10% FBS (Th. Geyer GmbH, Stuttgart, Germany), penicillin 100 U/mL and streptomycin 100 µg/mL (Life Technologies), 5 mL Sodium Pyruvate 100 mM (Sigma-Aldrich, St. Louis, MO, USA), 5 mL MEM NEAA 100x (Life Technologies), 5 mL L-Glutamine 200 mM 100x (Life) and 10 ng/mL NGF (Life Technologies) and kept at 37 °C/5% CO2. HC45 is a human ileal carcinoid cell line kindly provided by Ricardo V. Lloyd Mayo Clinic [29 (link)] and kept in RPMI 1640/Glutamax (GIBCO, Waltham, MA, USA) supplemented with 10% FBS, 1% P/S and 10 ng/mL Insulin (Invitrogen, Carlsbad, CA, USA) at 37 °C and 5% CO2.
NCI-H720 is an atypical and NCI-H727 is a typical human pulmonary carcinoid cell line obtained from ATCC (Boras, Sweden). Both cell lines were cultured in RPMI 1640 Glutamax supplemented with 10% FBS, penicillin 100 U/mL and streptomycin 100 µg/mL, 1 mM Sodium Pyruvate (Life Technologies) at 37 °C and 5% CO2.
For experiments involving seeding cells into new plates, cells were always allowed to adhere overnight.
Cultivation of B16 and LLC Cell Lines
The mouse Lewis Lung Carcinoma (LLC) cell line was obtained from ATCC (Rockville, Maryland, USA). The cells were maintained in vitro in RPMI-1640 GlutaMAX (Gibco, USA) supplemented with 100 mg/ml streptomycin (Polfa, Poland), 100 U/ml penicillin (Polfa, Poland), 4.5 g/l glucose (Sigma-Aldrich Chemie GmbH, Germany), 0.5% sodium pyruvate (Sigma-Aldrich Chemie GmbH, Germany or HyClone, USA).
Both of cell lines were cultivated in medium supplemented with 10% fetal bovine serum (FBS, Sigma-Aldrich Chemie GmbH, Germany), in standard conditions at 37°C in a humid atmosphere (5% CO2).
Jurkat and Primary T Cell Culture Protocol
Cell Line Culturing and NK Cell Isolation
Isolation and Activation of CD4+ T Cells
Orthotopic 4T1-luc2-tdTomato Tumor Inoculation
In Vitro Fibrosarcoma and MLS Cell Culture
For drug treatments, cells were treated for 24 h with 2.5 µM ruxolitinib (Selleckchem, Munich, Germany). For drug titration experiments, 1:2 dilution series, ranging from 3 µM to 5.9 nM, were used.
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