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erbb2 apc antibody  (Miltenyi Biotec)
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Miltenyi Biotec erbb2 apc antibody
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Erbb2 Apc Antibody, supplied by Miltenyi Biotec, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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fab1129a  (R&D Systems)
93
R&D Systems fab1129a
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Fab1129a, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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monoclonal antibody mouse anti human erbb2 her2 apc  (R&D Systems)
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R&D Systems monoclonal antibody mouse anti human erbb2 her2 apc
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Monoclonal Antibody Mouse Anti Human Erbb2 Her2 Apc, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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cell surface antigen erbb2  (R&D Systems)
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R&D Systems cell surface antigen erbb2
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Cell Surface Antigen Erbb2, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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rabbit anti human phospho her2 erbb2 tyr1221 1222  (Cell Signaling Technology Inc)
96
Cell Signaling Technology Inc rabbit anti human phospho her2 erbb2 tyr1221 1222
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Rabbit Anti Human Phospho Her2 Erbb2 Tyr1221 1222, supplied by Cell Signaling Technology Inc, used in various techniques. Bioz Stars score: 96/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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rabbit anti human phospho her2 erbb2 tyr1221 1222 - by Bioz Stars, 2026-05
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rabbit anti human her2 erbb2  (Cell Signaling Technology Inc)
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Cell Signaling Technology Inc rabbit anti human her2 erbb2
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Rabbit Anti Human Her2 Erbb2, supplied by Cell Signaling Technology Inc, used in various techniques. Bioz Stars score: 96/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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mouse anti human her2  (R&D Systems)
93
R&D Systems mouse anti human her2
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Mouse Anti Human Her2, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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mouse anti her2 mab  (R&D Systems)
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R&D Systems mouse anti her2 mab
Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Mouse Anti Her2 Mab, supplied by R&D Systems, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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catalog af1129  (R&D Systems)
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Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and <t>ErbB2-CAR-NK</t> cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).
Catalog Af1129, supplied by R&D Systems, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and ErbB2-CAR-NK cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).

Journal: iScience

Article Title: From byproduct to biotherapeutic: Comparative study of buffy coats and leukoreduction system chambers for NK cell-based immunotherapies

doi: 10.1016/j.isci.2026.114907

Figure Lengend Snippet: Functional characterization of NK cells (A) Degranulation capacity of NK cells following a 2 h co-culture with K562 leukemia cells, measured by surface CD107a expression ( n = 5). (B and C) Europium-based cytotoxicity assay assessing the specific lysis of K562 target cells at E:T ratios of 10:1, 5:1, 3:1, 1:1, and 0.5:1 on day 7 (B) and day 14 (C) of culture to monitor functional decline over time ( n = 6 for both time points). Here, all comparisons were not significant and are summarized as such (n.s.: p > 0.05). (D) IFN-γ release following 16 h of co-culture of NK cells with K562 cells, quantified via Luminex assay ( n = 5). (E) Kinetic live-cell killing assay using the Incucyte monitoring of Nuclight Red signal loss in K562 cells over 72 h at an E:T ratio of 1:1 ( n = 6). (F) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis thresholds during Incucyte co-culture with K562 cells. (G) CD107a degranulation assay of NK cells with or without pre-incubation with trastuzumab (anti-HER2 antibody) during a 2 h co-culture with MDA-MB-453 cells ( n = 5). (H) Incucyte-based cytotoxicity assay shows the real-time lysis of MDA-MB-453 cells by trastuzumab-loaded NK cells at an E:T ratio of 1:1 over 72 h ( n = 6). (I) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the ADCC assay. (n varies as not all samples reached the benchmark values within the observation period). All ADCC experiments have been performed after 14 days of in vitro NK cell expansion. N/A indicates that statistical analysis was not possible for this group. 9J) CD107a degranulation of unmodified NK cells and ErbB2-CAR-NK cells after 2 h co-culture with MDA-MB-453 cells ( n = 5). (K) Incucyte-based cytotoxicity assay showing killing dynamics of ErbB2-CAR-NK cells against MDA-MB-453 cells at an E:T ratio of 1:1 over 72 h ( n = 6). (L) Proportion of donors reaching 25%, 50%, and 75% cumulative lysis during the CAR-mediated cytotoxicity assay. (n varies as not all samples reached the benchmark values within the observation period). All CAR-killing experiments have been performed after 14 days of in vitro NK cell expansion. Unless otherwise stated, n refers to biologically independent donor samples and is indicated per group. Data are shown as mean ± SEM. p-values were determined by Student’s t test with Welsh correction (A, D, F, G, I, J, and L) or by one-way ANOVA (B and C) with Tukey post-test (K and L).

Article Snippet: Expression of the target antigen ErbB2 on cells used in cytotoxicity assays was determined by flow cytometry using an ErbB2 APC antibody (Clone REA522; Miltenyi, Bergisch Gladbach, Germany).

Techniques: Functional Assay, Co-Culture Assay, Expressing, Cytotoxicity Assay, Lysis, Luminex, Degranulation Assay, Incubation, ADCC Assay, In Vitro