Ctll 2 proliferation assay

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WebThe ED 50 as determined by a cell proliferation assay using murine CTLL-2 cells is less than 0.1 ng/ml, corresponding to a specific activity of > 1.0 × 10 7 IU/mg. Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder. Formulation Lyophilized from a 0.2 mm filtered concentrated solution in 20 mM PB, pH3.5, with 5 % ... WebWhen maintained in continuous culture, however, the overall sensitivity of this cell line is highly variable. To overcome this problem, large batches of CTLL-2 were grown, frozen and tested for their ability to detect low levels of IL-2 (0.01 IU) in dose response assays. Batches meeting this criterion were stored in liquid nitrogen until required.

Mouse IL-15/IL-15R Complex Recombinant Protein, …

WebAsn77 of IL-15 undergoes deamidation with a t 1/2 of ~4 days at pH 7.4, 37°C, but the IL-15 (Asp77) product is equipotent in the CTLL-2 bioassay and <5% additional degradation occurred over 8 days. 27 28 Here, when IL-15 was kept at pH 7.4, 37°C, for 10 days, there was no significant change in EC 50 in cell-based IL-2Rβ/γc dimerization or ELISA … WebOct 31, 2000 · In this study, alamarBlue was used to measure the proliferation of the IL-2-dependent cytotoxic T cell line, CTLL-2. The colorimetric change of alamarBlue at 570 nm compared to the reference wavelength, 600 nm, was proportional to the number of viable cells. The sensitivity of the IL-2 assay using ... proliferation assays. PDF; Standard … images of time table chart

Cytokine Bioassays Quick Guide Thermo Fisher Scientific - US

WebTitle: CTLL-2 Cell Proliferation Assay for Determination of Bioactivity of IL-15 . This procedure is made available through federal funds from the National Cancer Institute, … WebMay 24, 2015 · Cell Proliferation Assay Application of a colorimetric CTLL-2 cell proliferation assay for the evaluation of IL-15 antagonists Authors: Yunier Rodríguez Center for Genetic Engineering and... WebFor example, Recombinant Human IL-2 can activate proliferation of IL-2 dependent cell lines, CTLL-2 and HT-2. The same lot of recombinant protein provides different ED 50 values depending on the cell line used for stimulation. In the CTLL-2 stimulation assay, the ED 50 is 0.26 ng/ml corresponding to a specific activity of 3.73 x10 6 units/mg. images of timetables

Development of IL-15/IL-15Rα sushi domain-IgG4 Fc complexes in

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WebThe purified siIL-15 stimulates the proliferation of cytotoxic T lymphocytes line (CTLL)-2 and Kit 225 cells with EC50 values of 3.1 and 32.5 ng/mL, respectively. Webinterleukin-15, antagonist, peptide, serum, CTLL-2 cell line, proliferation assay. ABSTRACT Dysregulated expression of Interleukin (IL)-15 has been associated to several autoimmune and inflammatory diseases. In this sense, some agents that inhibit IL-15 activity have been developed as possible drugs to treat these pathologies. list of charles dickens worksWeb2.2. CTLL-2 cell proliferation assay Brieﬂy, CTLL-2 cells were cultured in RPMI 1640 sup-plemented with 10%fetal bovineserum (FBS),and200U/ml IL-2. The cells were harvested in their logarithmic phase (Cell passage 5 … list of charley davidson books in order

"WebAug 31, 2009 · A colorimetric cell proliferation assay using soluble tetrazolium salt [(CellTiter 96(R) Aqueous One Solution) cell proliferation reagent, containing the (3-(4,5 … " - Ctll 2 proliferation assay

Ctll 2 proliferation assay

A universal reporter cell line for bioactivity evaluation of

WebApr 13, 2024 · of Recombinant Human IL-2 as measured in a cell proliferation assay CTLL 2 mouse cytotoxic T cells (orange, green, red, respectively). 6'6 3$*(5HFRPELQDQW+XPDQ,/ 3URWHLQ6'6 3$*( 1 μg/lane of Recombinant Human IL-2 was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver … Web2. Add WST-1 reagent from CTLL-2 cell proliferation Kit 3. Incubate for 1 – 4 h 4. Measure absorbance at 420 – 480 nm 5. Analyze data Advantages at a glance: Easy to use o …

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WebApplication CTLL-2 has been used in CTLL-2 cell proliferation assay to determine the presence of T-cell cytokines. [ 1] [ 2] Culture Medium RPMI 1640 + 2mM Glutamine + 10-20 IU/ml Human Recombinant IL-2 + 10% Foetal Bovine Serum (FBS). Subculture Routine Maintain cultures between 3-9 x 10 5 cells/ml; 5% CO 2; 37°C. WebThe biological activity of the recovered soluble rhIL-2 protein was determined in a proliferation assay using CTLL-2 cells. Human IL-2 purchased from Sigma-Aldrich Co. …

WebCombined treatment of autoimmune MRL/MP-lpr/lpr mice with a herbal medicine, Ren-shen-yang-rong-tang (Japanese name: Ninjin-Youei-To) plus suboptimal dosage of prednisolone WebApr 7, 2024 · The CTLL-2 cell proliferation assay is the standard assay to calculate the biological activity of IL-2, measured in IU/mg 25. We compared S2A and the clinical …

WebJun 2, 2012 · A bioassay for IL-2 using CTLL-2 cells. Supernatants of tumor cells (PCl-13) transduced with the gene for human IL-2 were collected and tested for the ability to … WebTitle: CTLL-2 Proliferation Assay for Determination of Bioactivity of Recombinant Human Interleukin 2 (rhIL-2) UNCONTROLLED COPY FOR TRAINING AND REFERENCE …

WebApr 5, 2024 · measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells. The ED50 for this effect is 0.0300-0.250 ng/mL. Two independent lots were tested for activity and plotted on the same graph to show lot-to-lot consistency of Animal-FreeTM Recombinant Human IL-2. %LRDFWLYLW\

Webfrom the Mo7e and CTLL-2 cyto-kine-dependent proliferation assay, PFC-1 exhibited an approx-imately 10-fold stronger potency than rhIL-15 in PBMC prolifera-tion, while 10 nM rhIL-15 led to a proliferation rate of 20.71% and 1 nM PFC-1 resulted in a mean value of 22.05% (Fig. 2B). The enhanced activity could be due to the higher activity of IL ... list of charlestown bank robbersWebCTLL-2 has been used in CTLL-2 cell proliferation assay to determine the presence of T-cell cytokines. 培地 RPMI 1640 + 2mM Glutamine + 10-20 IU/ml Human Recombinant IL … images of timex watchesWebFeb 24, 2024 · CTLL-2 proliferation assay. In order to starve the CTLL-2 cells from IL-2, the cells were washed twice with prewarmed HBSS (Gibco, #14175095) and then grown in the absence of IL-2 for 24 h in RPMI ... images of time zones in the usaWebCTLL-2 cells were seeded in a 96-well plate and treated with varying concentrations of Human Recombinant IL-2. Cell proliferation was measured using a colorimetric assay. In the graph below, the specific activity was determined to be ≥ 5 x … images of time zonesWebSupport protocols are provided for the quantitation of CTLL-2, CT4.S, or CT.h4S proliferation using a standard [3H]thymidine incorporation method or by using the 3-(4,5 … list of charles wesley hymnsWebTitle: CTLL-2 Cell Proliferation Assay for Determination of Bioactivity of IL-15 . This procedure is made available through federal funds from the National Cancer Institute, NIH, under contract . UNCONTROLLED COPY FOR TRAINING AND REFERENCE PURPOSES ONLY . 7.5.2 Using a 50 -300 multiple channel pipettes, add the Starting Std01 or sample list of charlie chan moviesWebJun 9, 2024 · A CTLL-2 cell proliferation assay was used to evaluate the biological activity of the rhIL-15 and IL-15/SuIL-15Rα-IgG4 Fc complexes. The EC 50 values were calculated using the four-parameter nonlinear logistic regression model. All data points are the means ± standard deviation of triplicate OD values. The results are representative of at ... images of tim hortons