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human npm alk alcl cell line cost  (DSMZ)


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    DSMZ human npm alk alcl cell line cost
    Figure 1. NPM-ALK dependence of the transformed CD4+ T cells. (A) Expression by qRT-PCR analysis of NPM-ALK mRNA in the transformed CD4+ T cells (CD4-NPM/ALK+ lane shows the mean from 9 independent cell lines) and 3 positive control NPM-ALK+ <t>ALCL</t> cell lines: KARPAS-299, SU-DHL-1, and <t>COST.</t> CD4+ T cells preactivated with CD3/CD28 antibody-coated beads were used as negative controls (preactivated CD4). MLNS1 was used as an internal control. Relative NPM-ALK expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM. *P < 0.05, **P < 0.001, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (B) Suppressive effect of the ALK inhibitor crizotinib (500 nmol/L) on ALK and STAT3 phosphorylation in transformed CD4+ T cells and control NPM-ALK+ KARPAS-299 cells. The GAPDH protein served as an internal control to ensure equal loading. Blots from 1 representative experiment are shown.
    Human Npm Alk Alcl Cell Line Cost, supplied by DSMZ, used in various techniques. Bioz Stars score: 93/100, based on 130 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/human npm alk alcl cell line cost/product/DSMZ
    Average 93 stars, based on 130 article reviews
    human npm alk alcl cell line cost - by Bioz Stars, 2026-03
    93/100 stars

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    1) Product Images from "ALK-transformed mature T lymphocytes restore early thymus progenitor features"

    Article Title: ALK-transformed mature T lymphocytes restore early thymus progenitor features

    Journal: Journal of Clinical Investigation

    doi: 10.1172/jci134990

    Figure 1. NPM-ALK dependence of the transformed CD4+ T cells. (A) Expression by qRT-PCR analysis of NPM-ALK mRNA in the transformed CD4+ T cells (CD4-NPM/ALK+ lane shows the mean from 9 independent cell lines) and 3 positive control NPM-ALK+ ALCL cell lines: KARPAS-299, SU-DHL-1, and COST. CD4+ T cells preactivated with CD3/CD28 antibody-coated beads were used as negative controls (preactivated CD4). MLNS1 was used as an internal control. Relative NPM-ALK expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM. *P < 0.05, **P < 0.001, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (B) Suppressive effect of the ALK inhibitor crizotinib (500 nmol/L) on ALK and STAT3 phosphorylation in transformed CD4+ T cells and control NPM-ALK+ KARPAS-299 cells. The GAPDH protein served as an internal control to ensure equal loading. Blots from 1 representative experiment are shown.
    Figure Legend Snippet: Figure 1. NPM-ALK dependence of the transformed CD4+ T cells. (A) Expression by qRT-PCR analysis of NPM-ALK mRNA in the transformed CD4+ T cells (CD4-NPM/ALK+ lane shows the mean from 9 independent cell lines) and 3 positive control NPM-ALK+ ALCL cell lines: KARPAS-299, SU-DHL-1, and COST. CD4+ T cells preactivated with CD3/CD28 antibody-coated beads were used as negative controls (preactivated CD4). MLNS1 was used as an internal control. Relative NPM-ALK expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM. *P < 0.05, **P < 0.001, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (B) Suppressive effect of the ALK inhibitor crizotinib (500 nmol/L) on ALK and STAT3 phosphorylation in transformed CD4+ T cells and control NPM-ALK+ KARPAS-299 cells. The GAPDH protein served as an internal control to ensure equal loading. Blots from 1 representative experiment are shown.

    Techniques Used: Transformation Assay, Expressing, Quantitative RT-PCR, Positive Control, Control, Phospho-proteomics

    Figure 5. DMRs revealed that NPM-ALK–transformed CD4+ T cells and primary NPM-ALK+ ALCL cells have a close similarity with the ETP. (A) We used publicly available methylation data sets (30) generated from different devel- opmental T cell stages (multipotent ETPs [CD34+/CD1a–; n = 2]; T cell–committed progenitors [CD34+/CD1a+; n = 1]; pre- TCR T cells [n = 2]; TCR-expressing CD4+/CD8+ double-pos- itive T cells [DP-TCR+, n = 2]; and single positive [SP] CD8+ or CD4+ cells [SP-CD4+; n = 2 or SP-CD8+; n = 2]) to identify a cluster of 510 DMRs available to discriminate each different stage of T cell differentiation in the thymus. (B) Hierarchical clustering dendrogram using a cluster of 510 DMRs revealed that NPM-ALK–transformed CD4+ T cells were distant to the healthy CD4+ lymphocyte profile and clustered with primary NPM-ALK+ ALCL biopsies. Heatmaps also showed a similar- ity of NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) with CD34+/ CD1a– cells corresponding to the ETP stage.
    Figure Legend Snippet: Figure 5. DMRs revealed that NPM-ALK–transformed CD4+ T cells and primary NPM-ALK+ ALCL cells have a close similarity with the ETP. (A) We used publicly available methylation data sets (30) generated from different devel- opmental T cell stages (multipotent ETPs [CD34+/CD1a–; n = 2]; T cell–committed progenitors [CD34+/CD1a+; n = 1]; pre- TCR T cells [n = 2]; TCR-expressing CD4+/CD8+ double-pos- itive T cells [DP-TCR+, n = 2]; and single positive [SP] CD8+ or CD4+ cells [SP-CD4+; n = 2 or SP-CD8+; n = 2]) to identify a cluster of 510 DMRs available to discriminate each different stage of T cell differentiation in the thymus. (B) Hierarchical clustering dendrogram using a cluster of 510 DMRs revealed that NPM-ALK–transformed CD4+ T cells were distant to the healthy CD4+ lymphocyte profile and clustered with primary NPM-ALK+ ALCL biopsies. Heatmaps also showed a similar- ity of NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) with CD34+/ CD1a– cells corresponding to the ETP stage.

    Techniques Used: Transformation Assay, Methylation, Generated, Expressing, Cell Differentiation, Derivative Assay

    Figure 6. DMRs of NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells and the ETP. Two hundred and forty-three among the 510 DMRs within NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+), primary patient–derived NPM-ALK+ ALCL cells, and CD34+/CD1a– cells corresponding to the ETP stage. Venn diagram reveals that the ETP and both the NPM-ALK+ tumor cell entities (CD4+/NPM-ALK+ lymphoma cells and primary NPM-ALK+ ALCLs) share 38 DMRs with similar expression patterns.
    Figure Legend Snippet: Figure 6. DMRs of NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells and the ETP. Two hundred and forty-three among the 510 DMRs within NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+), primary patient–derived NPM-ALK+ ALCL cells, and CD34+/CD1a– cells corresponding to the ETP stage. Venn diagram reveals that the ETP and both the NPM-ALK+ tumor cell entities (CD4+/NPM-ALK+ lymphoma cells and primary NPM-ALK+ ALCLs) share 38 DMRs with similar expression patterns.

    Techniques Used: Transformation Assay, Derivative Assay, Expressing

    Figure 7. Transcriptional pattern links NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells to ETP cells. mRNA expression profiles from several cell populations isolated ex vivo from the neonatal human thymus defining in vivo maturation stages, multipotent ETPs (CD34+/CD1a–/CD7–; n = 3), late thymic precursor (CD34+/CD1a–/CD7+; n = 3), T cell–committed progenitors (CD34+/CD1a–/CD7+; n = 3), CD3–/CD4+ imma- ture single-positive (ISP) (ISP-CD4+, n = 4), CD4+/CD8+ double-positive TCR– cells (DP-TCR–; n = 3), and TCR-expressing CD4+/CD8+ double-positive T cells (DP-TCR+, n = 3) were integrated with our previous findings from the gene expression array data of 55 primary NPM-ALK+ ALCL samples (NPM-ALK+ ALCL) (35) and RNA-Seq data from the NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+; n = 9). NPM-ALK CD4+/NPM-ALK+ cells were distant to the healthy CD4+ lymphocyte but close to NPM-ALK+ ALCL. Moreover, NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) showed a similarity with the ETP stage.
    Figure Legend Snippet: Figure 7. Transcriptional pattern links NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells to ETP cells. mRNA expression profiles from several cell populations isolated ex vivo from the neonatal human thymus defining in vivo maturation stages, multipotent ETPs (CD34+/CD1a–/CD7–; n = 3), late thymic precursor (CD34+/CD1a–/CD7+; n = 3), T cell–committed progenitors (CD34+/CD1a–/CD7+; n = 3), CD3–/CD4+ imma- ture single-positive (ISP) (ISP-CD4+, n = 4), CD4+/CD8+ double-positive TCR– cells (DP-TCR–; n = 3), and TCR-expressing CD4+/CD8+ double-positive T cells (DP-TCR+, n = 3) were integrated with our previous findings from the gene expression array data of 55 primary NPM-ALK+ ALCL samples (NPM-ALK+ ALCL) (35) and RNA-Seq data from the NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+; n = 9). NPM-ALK CD4+/NPM-ALK+ cells were distant to the healthy CD4+ lymphocyte but close to NPM-ALK+ ALCL. Moreover, NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) showed a similarity with the ETP stage.

    Techniques Used: Transformation Assay, Derivative Assay, Expressing, Isolation, Ex Vivo, In Vivo, Gene Expression, RNA Sequencing

    Figure 8. HIF2A, encoded by the EPAS1 gene, is strictly dependent on NPM-ALK activity and activation of the STAT3 key signal transduction pathways in lymphoma cells. (A) Quantitative RT-PCR analysis of ALK and EPAS1 mRNA was performed in primary patient–derived NPM-ALK+ ALCL cells (n = 29). Relative mRNA expression was expressed as the 2–ΔΔCt relative to MLN51, S5, ABL, GAPDH, S14, or RPL0 genes for normalization and compared with pre- activated healthy CD4+ lymphocytes (n = 5). Data represent mean ± SEM. ***P < 0.001; unpaired 2-tailed Student’s t test. (B) Quantitative RT-PCR analysis of EPAS1 mRNA expression in NPM-ALK+ lymphoma cell lines, COST, KARPAS-299 (KARPAS), and SU-DHL1, treated for 72 hours or not (PBS) with crizo- tinib or transfected with either an irrelevant siRNA as the negative control (si-CTL) or a siRNA targeting ALK mRNA (si-ALK) or STAT3 (si-STAT3). Relative EPAS1 mRNA expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM from 3 independent experiments. *P < 0.05, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (C) Western blotting analysis of HIF2A expression (top) in NPM-ALK+ COST, KARPAS-299, and SU-DHL1 cells treated with crizotinib (crizo) or not (PBS), transfected by si-CTL, si-ALK, or si-STAT3. The GAPDH protein (bottom) served as an internal control to ensure equal loading. Results from 1 representative experiment are shown.
    Figure Legend Snippet: Figure 8. HIF2A, encoded by the EPAS1 gene, is strictly dependent on NPM-ALK activity and activation of the STAT3 key signal transduction pathways in lymphoma cells. (A) Quantitative RT-PCR analysis of ALK and EPAS1 mRNA was performed in primary patient–derived NPM-ALK+ ALCL cells (n = 29). Relative mRNA expression was expressed as the 2–ΔΔCt relative to MLN51, S5, ABL, GAPDH, S14, or RPL0 genes for normalization and compared with pre- activated healthy CD4+ lymphocytes (n = 5). Data represent mean ± SEM. ***P < 0.001; unpaired 2-tailed Student’s t test. (B) Quantitative RT-PCR analysis of EPAS1 mRNA expression in NPM-ALK+ lymphoma cell lines, COST, KARPAS-299 (KARPAS), and SU-DHL1, treated for 72 hours or not (PBS) with crizo- tinib or transfected with either an irrelevant siRNA as the negative control (si-CTL) or a siRNA targeting ALK mRNA (si-ALK) or STAT3 (si-STAT3). Relative EPAS1 mRNA expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM from 3 independent experiments. *P < 0.05, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (C) Western blotting analysis of HIF2A expression (top) in NPM-ALK+ COST, KARPAS-299, and SU-DHL1 cells treated with crizotinib (crizo) or not (PBS), transfected by si-CTL, si-ALK, or si-STAT3. The GAPDH protein (bottom) served as an internal control to ensure equal loading. Results from 1 representative experiment are shown.

    Techniques Used: Activity Assay, Activation Assay, Transduction, Quantitative RT-PCR, Derivative Assay, Expressing, Transfection, Negative Control, Western Blot, Control



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    human npm alk alcl cell line cost  (DSMZ)
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    DSMZ human npm alk alcl cell line cost
    Figure 1. NPM-ALK dependence of the transformed CD4+ T cells. (A) Expression by qRT-PCR analysis of NPM-ALK mRNA in the transformed CD4+ T cells (CD4-NPM/ALK+ lane shows the mean from 9 independent cell lines) and 3 positive control NPM-ALK+ <t>ALCL</t> cell lines: KARPAS-299, SU-DHL-1, and <t>COST.</t> CD4+ T cells preactivated with CD3/CD28 antibody-coated beads were used as negative controls (preactivated CD4). MLNS1 was used as an internal control. Relative NPM-ALK expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM. *P < 0.05, **P < 0.001, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (B) Suppressive effect of the ALK inhibitor crizotinib (500 nmol/L) on ALK and STAT3 phosphorylation in transformed CD4+ T cells and control NPM-ALK+ KARPAS-299 cells. The GAPDH protein served as an internal control to ensure equal loading. Blots from 1 representative experiment are shown.
    Human Npm Alk Alcl Cell Line Cost, supplied by DSMZ, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/human npm alk alcl cell line cost/product/DSMZ
    Average 93 stars, based on 1 article reviews
    human npm alk alcl cell line cost - by Bioz Stars, 2026-03
    93/100 stars
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    Figure 1. NPM-ALK dependence of the transformed CD4+ T cells. (A) Expression by qRT-PCR analysis of NPM-ALK mRNA in the transformed CD4+ T cells (CD4-NPM/ALK+ lane shows the mean from 9 independent cell lines) and 3 positive control NPM-ALK+ ALCL cell lines: KARPAS-299, SU-DHL-1, and COST. CD4+ T cells preactivated with CD3/CD28 antibody-coated beads were used as negative controls (preactivated CD4). MLNS1 was used as an internal control. Relative NPM-ALK expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM. *P < 0.05, **P < 0.001, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (B) Suppressive effect of the ALK inhibitor crizotinib (500 nmol/L) on ALK and STAT3 phosphorylation in transformed CD4+ T cells and control NPM-ALK+ KARPAS-299 cells. The GAPDH protein served as an internal control to ensure equal loading. Blots from 1 representative experiment are shown.

    Journal: Journal of Clinical Investigation

    Article Title: ALK-transformed mature T lymphocytes restore early thymus progenitor features

    doi: 10.1172/jci134990

    Figure Lengend Snippet: Figure 1. NPM-ALK dependence of the transformed CD4+ T cells. (A) Expression by qRT-PCR analysis of NPM-ALK mRNA in the transformed CD4+ T cells (CD4-NPM/ALK+ lane shows the mean from 9 independent cell lines) and 3 positive control NPM-ALK+ ALCL cell lines: KARPAS-299, SU-DHL-1, and COST. CD4+ T cells preactivated with CD3/CD28 antibody-coated beads were used as negative controls (preactivated CD4). MLNS1 was used as an internal control. Relative NPM-ALK expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM. *P < 0.05, **P < 0.001, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (B) Suppressive effect of the ALK inhibitor crizotinib (500 nmol/L) on ALK and STAT3 phosphorylation in transformed CD4+ T cells and control NPM-ALK+ KARPAS-299 cells. The GAPDH protein served as an internal control to ensure equal loading. Blots from 1 representative experiment are shown.

    Article Snippet: The human NPM-ALK+ ALCL cell line COST was established in the laboratory (40) and KARPAS-299 and SU-DHL-1 NPM-ALK+ ALCL cell lines were obtained from DSMZ (German Collection of Microorganisms and Cell Culture, Braunschweig, Germany).

    Techniques: Transformation Assay, Expressing, Quantitative RT-PCR, Positive Control, Control, Phospho-proteomics

    Figure 5. DMRs revealed that NPM-ALK–transformed CD4+ T cells and primary NPM-ALK+ ALCL cells have a close similarity with the ETP. (A) We used publicly available methylation data sets (30) generated from different devel- opmental T cell stages (multipotent ETPs [CD34+/CD1a–; n = 2]; T cell–committed progenitors [CD34+/CD1a+; n = 1]; pre- TCR T cells [n = 2]; TCR-expressing CD4+/CD8+ double-pos- itive T cells [DP-TCR+, n = 2]; and single positive [SP] CD8+ or CD4+ cells [SP-CD4+; n = 2 or SP-CD8+; n = 2]) to identify a cluster of 510 DMRs available to discriminate each different stage of T cell differentiation in the thymus. (B) Hierarchical clustering dendrogram using a cluster of 510 DMRs revealed that NPM-ALK–transformed CD4+ T cells were distant to the healthy CD4+ lymphocyte profile and clustered with primary NPM-ALK+ ALCL biopsies. Heatmaps also showed a similar- ity of NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) with CD34+/ CD1a– cells corresponding to the ETP stage.

    Journal: Journal of Clinical Investigation

    Article Title: ALK-transformed mature T lymphocytes restore early thymus progenitor features

    doi: 10.1172/jci134990

    Figure Lengend Snippet: Figure 5. DMRs revealed that NPM-ALK–transformed CD4+ T cells and primary NPM-ALK+ ALCL cells have a close similarity with the ETP. (A) We used publicly available methylation data sets (30) generated from different devel- opmental T cell stages (multipotent ETPs [CD34+/CD1a–; n = 2]; T cell–committed progenitors [CD34+/CD1a+; n = 1]; pre- TCR T cells [n = 2]; TCR-expressing CD4+/CD8+ double-pos- itive T cells [DP-TCR+, n = 2]; and single positive [SP] CD8+ or CD4+ cells [SP-CD4+; n = 2 or SP-CD8+; n = 2]) to identify a cluster of 510 DMRs available to discriminate each different stage of T cell differentiation in the thymus. (B) Hierarchical clustering dendrogram using a cluster of 510 DMRs revealed that NPM-ALK–transformed CD4+ T cells were distant to the healthy CD4+ lymphocyte profile and clustered with primary NPM-ALK+ ALCL biopsies. Heatmaps also showed a similar- ity of NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) with CD34+/ CD1a– cells corresponding to the ETP stage.

    Article Snippet: The human NPM-ALK+ ALCL cell line COST was established in the laboratory (40) and KARPAS-299 and SU-DHL-1 NPM-ALK+ ALCL cell lines were obtained from DSMZ (German Collection of Microorganisms and Cell Culture, Braunschweig, Germany).

    Techniques: Transformation Assay, Methylation, Generated, Expressing, Cell Differentiation, Derivative Assay

    Figure 6. DMRs of NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells and the ETP. Two hundred and forty-three among the 510 DMRs within NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+), primary patient–derived NPM-ALK+ ALCL cells, and CD34+/CD1a– cells corresponding to the ETP stage. Venn diagram reveals that the ETP and both the NPM-ALK+ tumor cell entities (CD4+/NPM-ALK+ lymphoma cells and primary NPM-ALK+ ALCLs) share 38 DMRs with similar expression patterns.

    Journal: Journal of Clinical Investigation

    Article Title: ALK-transformed mature T lymphocytes restore early thymus progenitor features

    doi: 10.1172/jci134990

    Figure Lengend Snippet: Figure 6. DMRs of NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells and the ETP. Two hundred and forty-three among the 510 DMRs within NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+), primary patient–derived NPM-ALK+ ALCL cells, and CD34+/CD1a– cells corresponding to the ETP stage. Venn diagram reveals that the ETP and both the NPM-ALK+ tumor cell entities (CD4+/NPM-ALK+ lymphoma cells and primary NPM-ALK+ ALCLs) share 38 DMRs with similar expression patterns.

    Article Snippet: The human NPM-ALK+ ALCL cell line COST was established in the laboratory (40) and KARPAS-299 and SU-DHL-1 NPM-ALK+ ALCL cell lines were obtained from DSMZ (German Collection of Microorganisms and Cell Culture, Braunschweig, Germany).

    Techniques: Transformation Assay, Derivative Assay, Expressing

    Figure 7. Transcriptional pattern links NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells to ETP cells. mRNA expression profiles from several cell populations isolated ex vivo from the neonatal human thymus defining in vivo maturation stages, multipotent ETPs (CD34+/CD1a–/CD7–; n = 3), late thymic precursor (CD34+/CD1a–/CD7+; n = 3), T cell–committed progenitors (CD34+/CD1a–/CD7+; n = 3), CD3–/CD4+ imma- ture single-positive (ISP) (ISP-CD4+, n = 4), CD4+/CD8+ double-positive TCR– cells (DP-TCR–; n = 3), and TCR-expressing CD4+/CD8+ double-positive T cells (DP-TCR+, n = 3) were integrated with our previous findings from the gene expression array data of 55 primary NPM-ALK+ ALCL samples (NPM-ALK+ ALCL) (35) and RNA-Seq data from the NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+; n = 9). NPM-ALK CD4+/NPM-ALK+ cells were distant to the healthy CD4+ lymphocyte but close to NPM-ALK+ ALCL. Moreover, NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) showed a similarity with the ETP stage.

    Journal: Journal of Clinical Investigation

    Article Title: ALK-transformed mature T lymphocytes restore early thymus progenitor features

    doi: 10.1172/jci134990

    Figure Lengend Snippet: Figure 7. Transcriptional pattern links NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL cells to ETP cells. mRNA expression profiles from several cell populations isolated ex vivo from the neonatal human thymus defining in vivo maturation stages, multipotent ETPs (CD34+/CD1a–/CD7–; n = 3), late thymic precursor (CD34+/CD1a–/CD7+; n = 3), T cell–committed progenitors (CD34+/CD1a–/CD7+; n = 3), CD3–/CD4+ imma- ture single-positive (ISP) (ISP-CD4+, n = 4), CD4+/CD8+ double-positive TCR– cells (DP-TCR–; n = 3), and TCR-expressing CD4+/CD8+ double-positive T cells (DP-TCR+, n = 3) were integrated with our previous findings from the gene expression array data of 55 primary NPM-ALK+ ALCL samples (NPM-ALK+ ALCL) (35) and RNA-Seq data from the NPM-ALK–transformed CD4+ T cells (CD4+/NPM-ALK+; n = 9). NPM-ALK CD4+/NPM-ALK+ cells were distant to the healthy CD4+ lymphocyte but close to NPM-ALK+ ALCL. Moreover, NPM-ALK+ cells (NPM-ALK–transformed CD4+ T cells and primary patient–derived NPM-ALK+ ALCL) showed a similarity with the ETP stage.

    Article Snippet: The human NPM-ALK+ ALCL cell line COST was established in the laboratory (40) and KARPAS-299 and SU-DHL-1 NPM-ALK+ ALCL cell lines were obtained from DSMZ (German Collection of Microorganisms and Cell Culture, Braunschweig, Germany).

    Techniques: Transformation Assay, Derivative Assay, Expressing, Isolation, Ex Vivo, In Vivo, Gene Expression, RNA Sequencing

    Figure 8. HIF2A, encoded by the EPAS1 gene, is strictly dependent on NPM-ALK activity and activation of the STAT3 key signal transduction pathways in lymphoma cells. (A) Quantitative RT-PCR analysis of ALK and EPAS1 mRNA was performed in primary patient–derived NPM-ALK+ ALCL cells (n = 29). Relative mRNA expression was expressed as the 2–ΔΔCt relative to MLN51, S5, ABL, GAPDH, S14, or RPL0 genes for normalization and compared with pre- activated healthy CD4+ lymphocytes (n = 5). Data represent mean ± SEM. ***P < 0.001; unpaired 2-tailed Student’s t test. (B) Quantitative RT-PCR analysis of EPAS1 mRNA expression in NPM-ALK+ lymphoma cell lines, COST, KARPAS-299 (KARPAS), and SU-DHL1, treated for 72 hours or not (PBS) with crizo- tinib or transfected with either an irrelevant siRNA as the negative control (si-CTL) or a siRNA targeting ALK mRNA (si-ALK) or STAT3 (si-STAT3). Relative EPAS1 mRNA expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM from 3 independent experiments. *P < 0.05, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (C) Western blotting analysis of HIF2A expression (top) in NPM-ALK+ COST, KARPAS-299, and SU-DHL1 cells treated with crizotinib (crizo) or not (PBS), transfected by si-CTL, si-ALK, or si-STAT3. The GAPDH protein (bottom) served as an internal control to ensure equal loading. Results from 1 representative experiment are shown.

    Journal: Journal of Clinical Investigation

    Article Title: ALK-transformed mature T lymphocytes restore early thymus progenitor features

    doi: 10.1172/jci134990

    Figure Lengend Snippet: Figure 8. HIF2A, encoded by the EPAS1 gene, is strictly dependent on NPM-ALK activity and activation of the STAT3 key signal transduction pathways in lymphoma cells. (A) Quantitative RT-PCR analysis of ALK and EPAS1 mRNA was performed in primary patient–derived NPM-ALK+ ALCL cells (n = 29). Relative mRNA expression was expressed as the 2–ΔΔCt relative to MLN51, S5, ABL, GAPDH, S14, or RPL0 genes for normalization and compared with pre- activated healthy CD4+ lymphocytes (n = 5). Data represent mean ± SEM. ***P < 0.001; unpaired 2-tailed Student’s t test. (B) Quantitative RT-PCR analysis of EPAS1 mRNA expression in NPM-ALK+ lymphoma cell lines, COST, KARPAS-299 (KARPAS), and SU-DHL1, treated for 72 hours or not (PBS) with crizo- tinib or transfected with either an irrelevant siRNA as the negative control (si-CTL) or a siRNA targeting ALK mRNA (si-ALK) or STAT3 (si-STAT3). Relative EPAS1 mRNA expression was expressed as the 2–ΔCt relative to MLN51. Data represent mean ± SEM from 3 independent experiments. *P < 0.05, ***P < 0.001; unpaired 2-tailed Student’s t test with Welch’s correction. (C) Western blotting analysis of HIF2A expression (top) in NPM-ALK+ COST, KARPAS-299, and SU-DHL1 cells treated with crizotinib (crizo) or not (PBS), transfected by si-CTL, si-ALK, or si-STAT3. The GAPDH protein (bottom) served as an internal control to ensure equal loading. Results from 1 representative experiment are shown.

    Article Snippet: The human NPM-ALK+ ALCL cell line COST was established in the laboratory (40) and KARPAS-299 and SU-DHL-1 NPM-ALK+ ALCL cell lines were obtained from DSMZ (German Collection of Microorganisms and Cell Culture, Braunschweig, Germany).

    Techniques: Activity Assay, Activation Assay, Transduction, Quantitative RT-PCR, Derivative Assay, Expressing, Transfection, Negative Control, Western Blot, Control