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mca1424  (Bio-Rad)


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    Structured Review

    Bio-Rad mca1424
    Mca1424, supplied by Bio-Rad, used in various techniques. Bioz Stars score: 94/100, based on 79 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/cd21/Mouse+anti+Bovine+CD21/us07420099-945-4-12
    Average 94 stars, based on 79 article reviews
    mca1424 - by Bioz Stars, 2026-10
    94/100 stars

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    Related Articles

    Saline:

    Article Title: Interactions between rumen epithelium-associated microbiota and host immunological and metabolic adaptations in response to different milk replacer feeding intensities in dairy calves
    Article Snippet: Blood samples (100 μL) were incubated with VersaLyse (Beckman Coulter GmbH, Krefeld, Germany) for 20 min at room temperature and centrifuged at 250 × g for 5 min. .. Obtained cell pellets were washed twice by adding 700 μL phosphate-buffered saline (PBS) and subsequent centrifugation at 150 × g for 5 min. Staining of leukocytes was reached by adding monoclonal antibodies for marking CD4 (co-receptor primarily expressed on T-helper cells, monocytes, and macrophages; mouse anti-bovine CD4: +FITC; Bio-Rad, Hercules, USA), CD8 (co-receptor primarily expressed on cytotoxic T cells; mouse anti-bovine CD8: +RPE; Bio-Rad), CD14 (receptor expressed on monocytes and macrophages; mouse anti-bovine CD14: +RPE; Bio-Rad), and CD21 (co-receptor found on B cells; mouse anti-bovine CD21: +RPE; Bio-Rad). ..

    Centrifugation:

    Article Title: Interactions between rumen epithelium-associated microbiota and host immunological and metabolic adaptations in response to different milk replacer feeding intensities in dairy calves
    Article Snippet: Blood samples (100 μL) were incubated with VersaLyse (Beckman Coulter GmbH, Krefeld, Germany) for 20 min at room temperature and centrifuged at 250 × g for 5 min. .. Obtained cell pellets were washed twice by adding 700 μL phosphate-buffered saline (PBS) and subsequent centrifugation at 150 × g for 5 min. Staining of leukocytes was reached by adding monoclonal antibodies for marking CD4 (co-receptor primarily expressed on T-helper cells, monocytes, and macrophages; mouse anti-bovine CD4: +FITC; Bio-Rad, Hercules, USA), CD8 (co-receptor primarily expressed on cytotoxic T cells; mouse anti-bovine CD8: +RPE; Bio-Rad), CD14 (receptor expressed on monocytes and macrophages; mouse anti-bovine CD14: +RPE; Bio-Rad), and CD21 (co-receptor found on B cells; mouse anti-bovine CD21: +RPE; Bio-Rad). ..

    Staining:

    Article Title: Interactions between rumen epithelium-associated microbiota and host immunological and metabolic adaptations in response to different milk replacer feeding intensities in dairy calves
    Article Snippet: Blood samples (100 μL) were incubated with VersaLyse (Beckman Coulter GmbH, Krefeld, Germany) for 20 min at room temperature and centrifuged at 250 × g for 5 min. .. Obtained cell pellets were washed twice by adding 700 μL phosphate-buffered saline (PBS) and subsequent centrifugation at 150 × g for 5 min. Staining of leukocytes was reached by adding monoclonal antibodies for marking CD4 (co-receptor primarily expressed on T-helper cells, monocytes, and macrophages; mouse anti-bovine CD4: +FITC; Bio-Rad, Hercules, USA), CD8 (co-receptor primarily expressed on cytotoxic T cells; mouse anti-bovine CD8: +RPE; Bio-Rad), CD14 (receptor expressed on monocytes and macrophages; mouse anti-bovine CD14: +RPE; Bio-Rad), and CD21 (co-receptor found on B cells; mouse anti-bovine CD21: +RPE; Bio-Rad). ..

    Article Title: Immune cells phenotype and bioenergetic measures in CD4 + T cells differ between high and low feed efficient dairy cows.
    Article Snippet: .. Next, PBMC were washed twice with PBS supplemented with 0.5% of BSA (PBS-BSA) and incubated for an additional 30 min at room temperature in the dark with 0.05 μg of anti-CD4 (MCA1653A700, clone CC8, Bio-Rad Laboratories, Inc., Hercules, CA), 3 μg of anti-CD8 (MCA837PE, clone CC63, Bio-Rad Laboratories, Inc., Hercules, CA), 0.1 μg of anti-CD21 (MCA1424F, clone CC21, Bio-Rad Laboratories, Inc., Hercules, CA), 0.5 μg of APC (1090-11L, Isotype Goat IgG, SouthernBiotech, Birmingham, AL), 1 μg of antiCD62L (WS0515B-100, clone BAQ92A, Kingfisher Biotech, Inc., Saint Paul, MN) conjugated with Pacific BlueTM Antibody Labeling Kit (P30013, Thermo Fisher Scientific Inc., Waltham, MA), and 1 μL of LIVE/DEADTM Fixable Aqua Dead Cell Stain Kit (L34965, Thermo Fisher Scientific Inc., Waltham, MA) in 560 μL of PBS-BSA. ..

    Bioprocessing:

    Article Title: Interactions between rumen epithelium-associated microbiota and host immunological and metabolic adaptations in response to different milk replacer feeding intensities in dairy calves
    Article Snippet: Blood samples (100 μL) were incubated with VersaLyse (Beckman Coulter GmbH, Krefeld, Germany) for 20 min at room temperature and centrifuged at 250 × g for 5 min. .. Obtained cell pellets were washed twice by adding 700 μL phosphate-buffered saline (PBS) and subsequent centrifugation at 150 × g for 5 min. Staining of leukocytes was reached by adding monoclonal antibodies for marking CD4 (co-receptor primarily expressed on T-helper cells, monocytes, and macrophages; mouse anti-bovine CD4: +FITC; Bio-Rad, Hercules, USA), CD8 (co-receptor primarily expressed on cytotoxic T cells; mouse anti-bovine CD8: +RPE; Bio-Rad), CD14 (receptor expressed on monocytes and macrophages; mouse anti-bovine CD14: +RPE; Bio-Rad), and CD21 (co-receptor found on B cells; mouse anti-bovine CD21: +RPE; Bio-Rad). ..

    Article Title: Biocompatibility of Water-Dispersible Pristine Graphene and Graphene Oxide Using a Close-to-Human Animal Model: A Pilot Study on Swine.
    Article Snippet: The cells were transferred into 5 mL round bottom tubes (Corning) (1 × 106 PBMCs tube−1), stained with monoclonal antibodies specific for surface markers for 15 min at RT, and then washed with PBS containing 2% of FBS. .. The monocytes were differentiated using mouse anti-human CD14-PerCP-Cy5.5 (Tuk4; Miltenyi Biotec), whereas main lymphocyte populations were discriminated using the following monoclonal antibodies (moAb): mouse antibovine CD21-PE (CC51; Bio-rad), mouse anti-pig CD3-PerCP-Cy5.5 (BB238E6-8C8; BD Pharmigen), mouse anti-pig CD4-FITC (74-12-4; BD Pharmigen), mouse anti-pig CD8-PE (76-2-11; BD Pharmigen). ..

    Article Title: Biocompatibility of Water‐Dispersible Pristine Graphene and Graphene Oxide Using a Close‐to‐Human Animal Model: A Pilot Study on Swine
    Article Snippet: The cells were transferred into 5 mL round bottom tubes (Corning) (1 × 10 6 PBMCs tube −1 ), stained with monoclonal antibodies specific for surface markers for 15 min at RT, and then washed with PBS containing 2% of FBS. .. The monocytes were differentiated using mouse anti‐human CD14‐PerCP‐Cy5.5 (Tuk4; Miltenyi Biotec), whereas main lymphocyte populations were discriminated using the following monoclonal antibodies (moAb): mouse anti‐bovine CD21‐PE (CC51; Bio‐rad), mouse anti‐pig CD3‐PerCP‐Cy5.5 (BB23‐8E6‐8C8; BD Pharmigen), mouse anti‐pig CD4‐FITC (74‐12‐4; BD Pharmigen), mouse anti‐pig CD8‐PE (76‐2‐11; BD Pharmigen). ..

    Incubation:

    Article Title: Immune cells phenotype and bioenergetic measures in CD4 + T cells differ between high and low feed efficient dairy cows.
    Article Snippet: .. Next, PBMC were washed twice with PBS supplemented with 0.5% of BSA (PBS-BSA) and incubated for an additional 30 min at room temperature in the dark with 0.05 μg of anti-CD4 (MCA1653A700, clone CC8, Bio-Rad Laboratories, Inc., Hercules, CA), 3 μg of anti-CD8 (MCA837PE, clone CC63, Bio-Rad Laboratories, Inc., Hercules, CA), 0.1 μg of anti-CD21 (MCA1424F, clone CC21, Bio-Rad Laboratories, Inc., Hercules, CA), 0.5 μg of APC (1090-11L, Isotype Goat IgG, SouthernBiotech, Birmingham, AL), 1 μg of antiCD62L (WS0515B-100, clone BAQ92A, Kingfisher Biotech, Inc., Saint Paul, MN) conjugated with Pacific BlueTM Antibody Labeling Kit (P30013, Thermo Fisher Scientific Inc., Waltham, MA), and 1 μL of LIVE/DEADTM Fixable Aqua Dead Cell Stain Kit (L34965, Thermo Fisher Scientific Inc., Waltham, MA) in 560 μL of PBS-BSA. ..

    Article Title: Supporting Information for: Unraveling clonal CD8 T cell expansion and discovery of novel factors in γ-herpesvirus-induced lymphomagenesis
    Article Snippet: .. Briefly, PBMCs were incubated with a monoclonal antibody cocktail containing mouse anti-bovine CD21 (clone CC21, mouse IgG1, Biorad), MHCII (mouse IgG1, clone B2 Val 7C7)(6), NKp46 (mouse IgG2b, clone AKS6, provided by Anne Storset, Norwegian University of Life Sciences), and TCRδ (mouse IgG2b, clone GB21A, Kingfischer Biotech), followed by anti-mouse IgG microbeads and depletion on LD columns (Miltenyi Biotec). .. Negatively selected cells were then further stained with mouse antibovine CD4 (mouse IgG2a, CC8, FITC, Biorad) and CD8 (mouse IgG2a, CC63, AF647, Biorad), CD3 (mouse IgG1, MM1A, Biorad), followed by staining with anti-mouse IgG1 (rat IgG1, A85-1, PE, BD Biosciences).

    Antibody Labeling:

    Article Title: Immune cells phenotype and bioenergetic measures in CD4 + T cells differ between high and low feed efficient dairy cows.
    Article Snippet: .. Next, PBMC were washed twice with PBS supplemented with 0.5% of BSA (PBS-BSA) and incubated for an additional 30 min at room temperature in the dark with 0.05 μg of anti-CD4 (MCA1653A700, clone CC8, Bio-Rad Laboratories, Inc., Hercules, CA), 3 μg of anti-CD8 (MCA837PE, clone CC63, Bio-Rad Laboratories, Inc., Hercules, CA), 0.1 μg of anti-CD21 (MCA1424F, clone CC21, Bio-Rad Laboratories, Inc., Hercules, CA), 0.5 μg of APC (1090-11L, Isotype Goat IgG, SouthernBiotech, Birmingham, AL), 1 μg of antiCD62L (WS0515B-100, clone BAQ92A, Kingfisher Biotech, Inc., Saint Paul, MN) conjugated with Pacific BlueTM Antibody Labeling Kit (P30013, Thermo Fisher Scientific Inc., Waltham, MA), and 1 μL of LIVE/DEADTM Fixable Aqua Dead Cell Stain Kit (L34965, Thermo Fisher Scientific Inc., Waltham, MA) in 560 μL of PBS-BSA. ..

    other:

    Article Title: Integrated metabolome and immunity analysis of immune-physiological responses in dairy cows under heat stress condition.
    Article Snippet: Briefly, the 210 PBMC fixed using 4% paraformaldehyde (PFA) for 20 min at 4°C and stained with direct fluorescence 211 conjugated antibodies; anti-CD4:Alexa Flour 647 (Bio-Rad, MCA1653A647), anti-CD21:PE (Bio-Rad, 212 MCA1424PE), anti-CD172a:PE-Cy5 (Bio-Rad, MCA2041C), anti-WC1:FITC (Bio-Rad, MCA838F), 213 anti-MHCII:FITC (Bio-Rad, MCA5656F), anti-CD16:FITC (Bio-Rad, MCA5665F), anti-CD14:PE (Bio-214 Rad, MCA1568PE), anti-CD8:PE (Bio-Rad, MCA837PE), anti-IFNg:FITC (Bio-Rad, MCA1783A488), 215 anti-IL-17A:Biotin (Bio-Rad, AHP2376B), and Streptavidin:PEcy5 (Invitrogen, 45-4317-80).

    Article Title: Postnatal Epigenetic Alterations in Calves Persistently Infected with Bovine Viral Diarrhea Virus
    Article Snippet: , CD21 , Anti-bovine (CC21) , BioRad , AF568 (conjugate) , 578/603.



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    Image Search Results


    Cytologic, histopathologic, immunohistochemical and flow cytometric findings of the gingival mass and regional lymph nodes. (A) Fine‐needle aspiration cytology of the gingival mass showing a low‐cellularity smear composed of a homogeneous population of round cells. The cells exhibit round to oval, occasionally indented and pleomorphic nuclei, with mild to moderate anisocytosis and anisokaryosis. Some cells contain prominent nucleoli, and occasional multinucleated cells are observed. A single neutrophil is present in the upper right field. (B) Histopathologic examination of the gingival mass demonstrating a densely cellular, poorly demarcated, infiltrative round cell neoplasm with frequent mitotic figures. (C and D) Immunohistochemical staining showing strong and diffuse cytoplasmic immunoreactivity of neoplastic cells for MUM‐1, consistent with extramedullary plasmacytoma. (E) Cytologic evaluation of the submandibular lymph node revealed a predominant population of large, atypical round to ovoid cells with marked nuclear atypia, prominent and multiple nucleoli, binucleation and multinucleation, admixed with small to intermediate‐sized lymphocytes, with one abnormal mitotic figure observed in the field, supporting metastatic involvement of the regional lymph node. (F) Flow cytometric immunophenotyping of the lymph node demonstrating heterogeneous expression of CD5 and CD21, with a predominant population of CD5‐ and CD21‐double‐negative cells, supporting the metastatic involvement of extramedullary plasmacytoma in the regional lymph node. Scale bars: A, E = 10 µm; B, D = 50 µm; C = 200 µm.

    Journal: Veterinary Medicine and Science

    Article Title: Rare Feline Gingival Extramedullary Plasmacytoma: Clinical Application of Electrochemotherapy for Local Control

    doi: 10.1002/vms3.71294

    Figure Lengend Snippet: Cytologic, histopathologic, immunohistochemical and flow cytometric findings of the gingival mass and regional lymph nodes. (A) Fine‐needle aspiration cytology of the gingival mass showing a low‐cellularity smear composed of a homogeneous population of round cells. The cells exhibit round to oval, occasionally indented and pleomorphic nuclei, with mild to moderate anisocytosis and anisokaryosis. Some cells contain prominent nucleoli, and occasional multinucleated cells are observed. A single neutrophil is present in the upper right field. (B) Histopathologic examination of the gingival mass demonstrating a densely cellular, poorly demarcated, infiltrative round cell neoplasm with frequent mitotic figures. (C and D) Immunohistochemical staining showing strong and diffuse cytoplasmic immunoreactivity of neoplastic cells for MUM‐1, consistent with extramedullary plasmacytoma. (E) Cytologic evaluation of the submandibular lymph node revealed a predominant population of large, atypical round to ovoid cells with marked nuclear atypia, prominent and multiple nucleoli, binucleation and multinucleation, admixed with small to intermediate‐sized lymphocytes, with one abnormal mitotic figure observed in the field, supporting metastatic involvement of the regional lymph node. (F) Flow cytometric immunophenotyping of the lymph node demonstrating heterogeneous expression of CD5 and CD21, with a predominant population of CD5‐ and CD21‐double‐negative cells, supporting the metastatic involvement of extramedullary plasmacytoma in the regional lymph node. Scale bars: A, E = 10 µm; B, D = 50 µm; C = 200 µm.

    Article Snippet: For flow cytometric analysis, antibodies against CD21 (B‐cell marker; clone CA2.1D6, RPE‐conjugated, Bio‐Rad Antibodies, MCA1781R), CD5 (pan–T‐cell marker; clone FE1.1B11, FITC‐conjugated, Bio‐Rad Antibodies, MCA2038F), CD4 (helper T‐cell marker; clone VPG34, FITC‐conjugated; Bio‐Rad Antibodies, MCA1346F) and CD8 (cytotoxic T‐cell marker; clone VPG9, RPE‐conjugated; Bio‐Rad Antibodies, MCA1347R) were used.

    Techniques: Immunohistochemical staining, Staining, Expressing

    CFP1 is critical for class-switch recombination in activated B cells (A) Representative flow cytometry plots and ratio of IgA CSR efficiency in CFP1-deficient CH12F3 cells under CIT stimulation for 3 days ( n = 3). (B and C) Representative flow cytometry plots and ratio of IgG1 and IgA switching in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells under LPS/IL-4/TGF-β/IL-5/δ-glucoside ( n = 4) (B) or LPS/IL-4 conditions (n = 6–7) (C). (D) Representative flow cytometry plots and ratio of the IgG3 switching in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells under LPS conditions (n = 7–8). (E) Schematic of DC-PCR with genomic DNA from stimulated B cells. (F) Detection of deletional Sμ-Sγ1 joining by DC-PCR in stimulated splenic B cells from Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre ( n = 3), Chrnb1 served as the internal control. For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed).

    Journal: iScience

    Article Title: CFP1 promotes B cell class switch recombination through the regulation of S region germline transcription and proliferation

    doi: 10.1016/j.isci.2026.116255

    Figure Lengend Snippet: CFP1 is critical for class-switch recombination in activated B cells (A) Representative flow cytometry plots and ratio of IgA CSR efficiency in CFP1-deficient CH12F3 cells under CIT stimulation for 3 days ( n = 3). (B and C) Representative flow cytometry plots and ratio of IgG1 and IgA switching in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells under LPS/IL-4/TGF-β/IL-5/δ-glucoside ( n = 4) (B) or LPS/IL-4 conditions (n = 6–7) (C). (D) Representative flow cytometry plots and ratio of the IgG3 switching in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells under LPS conditions (n = 7–8). (E) Schematic of DC-PCR with genomic DNA from stimulated B cells. (F) Detection of deletional Sμ-Sγ1 joining by DC-PCR in stimulated splenic B cells from Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre ( n = 3), Chrnb1 served as the internal control. For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed).

    Article Snippet: Cd21 cre , The Jackson Laboratory , Cat# 006368.

    Techniques: Flow Cytometry, Control, Two Tailed Test

    CFP1 is required for optimal S region GLT and AID targeting (A and B) Illustration shows the location of RT-qPCR primers for spliced and initiating Igh switch transcripts (A) and quantification of these transcripts (B) in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells ( n = 3). (C) RT-qPCR analysis of Aicda gene in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells stimulated under LPS/IL-4 for 2 days ( n = 6). (D) Schematic of the 5′ Sμ SHM-seq workflow in splenic B cells from Aicda −/− , Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre mice (Upper). Mutation profiles in the above B cells stimulated with LPS/IL4 for 4 days (Lower). Green bars indicate SEM. Positions of AGCT and WRC (W: A/T; R: A/G) motifs are marked with orange and yellow bars, respectively. (E) Normalized mutation frequency in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre mice ( n = 3). (F) Gene expression in splenic B cells stimulated with LPS/IL-4 for 2 days by mRNA-seq ( n = 3). For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed).

    Journal: iScience

    Article Title: CFP1 promotes B cell class switch recombination through the regulation of S region germline transcription and proliferation

    doi: 10.1016/j.isci.2026.116255

    Figure Lengend Snippet: CFP1 is required for optimal S region GLT and AID targeting (A and B) Illustration shows the location of RT-qPCR primers for spliced and initiating Igh switch transcripts (A) and quantification of these transcripts (B) in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells ( n = 3). (C) RT-qPCR analysis of Aicda gene in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells stimulated under LPS/IL-4 for 2 days ( n = 6). (D) Schematic of the 5′ Sμ SHM-seq workflow in splenic B cells from Aicda −/− , Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre mice (Upper). Mutation profiles in the above B cells stimulated with LPS/IL4 for 4 days (Lower). Green bars indicate SEM. Positions of AGCT and WRC (W: A/T; R: A/G) motifs are marked with orange and yellow bars, respectively. (E) Normalized mutation frequency in Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre mice ( n = 3). (F) Gene expression in splenic B cells stimulated with LPS/IL-4 for 2 days by mRNA-seq ( n = 3). For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed).

    Article Snippet: Cd21 cre , The Jackson Laboratory , Cat# 006368.

    Techniques: Quantitative RT-PCR, Mutagenesis, Gene Expression, Two Tailed Test

    CFP1 knockout does not affect DSB end joining (A) DSB repair-related gene expressions in splenic B cells stimulated with LPS/IL-4 for 2 days assessed by mRNA-seq ( n = 3). (B) Schematic of Cas9/sgRNA-mediated IgG1 switching analysis. (C and D) Representative flow cytometry plots (C) and quantification (D) of the IgG1 class switching in CH12F3 cell nucleofection of sgRNAs targeting Sμ and Sγ1 for 48 h ( n = 7). (E, F, and G) Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells stimulated with LPS/IL-4 for 4 days ( n = 3). (E) Distribution of Sμ-Sγ1 and Sμ-Sε junctions recovered from stimulated B cells. Numbers in parentheses denote total unique junctions in the indicated regions. The area between the dotted lines indicates the core S region. (F) The ratio of inversional versus deletional junctions in Sγ1 and Sε regions (left) and percentage of end resection in Sγ1 and Sε regions (right) (G). The percentage of MH utilization within Sγ1 and Sε regions. For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed) in (A) and (F). p values by Dunnett’s multiple comparisons test in (D).

    Journal: iScience

    Article Title: CFP1 promotes B cell class switch recombination through the regulation of S region germline transcription and proliferation

    doi: 10.1016/j.isci.2026.116255

    Figure Lengend Snippet: CFP1 knockout does not affect DSB end joining (A) DSB repair-related gene expressions in splenic B cells stimulated with LPS/IL-4 for 2 days assessed by mRNA-seq ( n = 3). (B) Schematic of Cas9/sgRNA-mediated IgG1 switching analysis. (C and D) Representative flow cytometry plots (C) and quantification (D) of the IgG1 class switching in CH12F3 cell nucleofection of sgRNAs targeting Sμ and Sγ1 for 48 h ( n = 7). (E, F, and G) Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells stimulated with LPS/IL-4 for 4 days ( n = 3). (E) Distribution of Sμ-Sγ1 and Sμ-Sε junctions recovered from stimulated B cells. Numbers in parentheses denote total unique junctions in the indicated regions. The area between the dotted lines indicates the core S region. (F) The ratio of inversional versus deletional junctions in Sγ1 and Sε regions (left) and percentage of end resection in Sγ1 and Sε regions (right) (G). The percentage of MH utilization within Sγ1 and Sε regions. For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed) in (A) and (F). p values by Dunnett’s multiple comparisons test in (D).

    Article Snippet: Cd21 cre , The Jackson Laboratory , Cat# 006368.

    Techniques: Knock-Out, Flow Cytometry, Two Tailed Test

    Cfp1 ablation impairs cell proliferation (A) Representative flow cytometry plots and proliferation index analysis of CFSE-labeled Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells cultured with LPS/IL-4 for 96 h (n = 5–6). (B) Representative flow cytometry plots and the percentage of IgG1 class switching per cell division, tracked by CFSE dilution after 96 h of LPS/IL-4 stimulation (n = 5–6). (C) Representative flow cytometry plots and proliferation index analysis of CFSE-labeled Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells cultured with CD40/IL-4 for 96 h (n = 5–6). (D) Representative flow cytometry plots and the percentage of IgG1 per cell division, tracked by CFSE dilution after 96 h of CD40/IL-4 stimulation (n = 5–6). (E and G) Live cell counts of Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells at 0 h, 48 h, 72 h, and 96 h after LPS/IL-4 (E, n = 3) or CD40/IL4 stimulation (G, n = 3). (F and H) Cell-cycle analysis of splenic B cells stimulated with LPS/IL-4 (F, n = 4–5) or CD40/IL4 (H, n = 3) for 48 h. Bars represent the mean values in (B), (D), (F), and (H). For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed).

    Journal: iScience

    Article Title: CFP1 promotes B cell class switch recombination through the regulation of S region germline transcription and proliferation

    doi: 10.1016/j.isci.2026.116255

    Figure Lengend Snippet: Cfp1 ablation impairs cell proliferation (A) Representative flow cytometry plots and proliferation index analysis of CFSE-labeled Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells cultured with LPS/IL-4 for 96 h (n = 5–6). (B) Representative flow cytometry plots and the percentage of IgG1 class switching per cell division, tracked by CFSE dilution after 96 h of LPS/IL-4 stimulation (n = 5–6). (C) Representative flow cytometry plots and proliferation index analysis of CFSE-labeled Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells cultured with CD40/IL-4 for 96 h (n = 5–6). (D) Representative flow cytometry plots and the percentage of IgG1 per cell division, tracked by CFSE dilution after 96 h of CD40/IL-4 stimulation (n = 5–6). (E and G) Live cell counts of Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells at 0 h, 48 h, 72 h, and 96 h after LPS/IL-4 (E, n = 3) or CD40/IL4 stimulation (G, n = 3). (F and H) Cell-cycle analysis of splenic B cells stimulated with LPS/IL-4 (F, n = 4–5) or CD40/IL4 (H, n = 3) for 48 h. Bars represent the mean values in (B), (D), (F), and (H). For all panels showing quantitative data, data are shown as mean ± SEM. p values by unpaired t test (two-tailed).

    Article Snippet: Cd21 cre , The Jackson Laboratory , Cat# 006368.

    Techniques: Flow Cytometry, Labeling, Cell Culture, Cell Cycle Assay, Two Tailed Test

    Cfp1 regulates cell proliferation-related gene expression through H3K4me3 modification Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells are stimulated with LPS/IL-4 for 48 h for bulk mRNA-seq and CUT&Tag; n = 3. (A) Volcano plot of differentially expressed genes ( p value < 0.05, absolute log 2 FC > 0.5). (B) GSEA enrichment plot for pathways ranked by P .adjust. (C) Scatterplot showing the correlation between differential gene expression (DEGs in A and altered promoter H3K4me3 levels in Cfp1 -KO versus WT stimulated B cells. Pearson’s correlation coefficient is indicated. (D) GO enrichment in “both down” and “both up” genes shows the top five pathways ranked by q -values for each category. (E) Heatmap for mRNA and H3K4me3 signals of DEGs from B. (F) Genome browser tracks of mRNA and H3K4me3, for example, positive and negative cell proliferation-related genes. (G) Live cell counts of CH12F3 cells transduced with lentivirus expressing the Pcna or empty vector (EV) shRNA at 0 h, 24 h, 36 h, and 48 h cultured in vitro ( n = 3). (H) Representative flow cytometry plots and ratio of IgA CSR efficiency in EGFP + CH12F3 cells under CIT stimulation ( n = 3). Bars represent the mean ± SD in (G). For all panels showing quantitative data, data are shown as mean ± SEM. p values by Dunnett’s multiple comparisons test. p values based on 48 h data in (G). See also .

    Journal: iScience

    Article Title: CFP1 promotes B cell class switch recombination through the regulation of S region germline transcription and proliferation

    doi: 10.1016/j.isci.2026.116255

    Figure Lengend Snippet: Cfp1 regulates cell proliferation-related gene expression through H3K4me3 modification Cfp1 fl/fl and Cfp1 fl/fl Cd21 Cre splenic B cells are stimulated with LPS/IL-4 for 48 h for bulk mRNA-seq and CUT&Tag; n = 3. (A) Volcano plot of differentially expressed genes ( p value < 0.05, absolute log 2 FC > 0.5). (B) GSEA enrichment plot for pathways ranked by P .adjust. (C) Scatterplot showing the correlation between differential gene expression (DEGs in A and altered promoter H3K4me3 levels in Cfp1 -KO versus WT stimulated B cells. Pearson’s correlation coefficient is indicated. (D) GO enrichment in “both down” and “both up” genes shows the top five pathways ranked by q -values for each category. (E) Heatmap for mRNA and H3K4me3 signals of DEGs from B. (F) Genome browser tracks of mRNA and H3K4me3, for example, positive and negative cell proliferation-related genes. (G) Live cell counts of CH12F3 cells transduced with lentivirus expressing the Pcna or empty vector (EV) shRNA at 0 h, 24 h, 36 h, and 48 h cultured in vitro ( n = 3). (H) Representative flow cytometry plots and ratio of IgA CSR efficiency in EGFP + CH12F3 cells under CIT stimulation ( n = 3). Bars represent the mean ± SD in (G). For all panels showing quantitative data, data are shown as mean ± SEM. p values by Dunnett’s multiple comparisons test. p values based on 48 h data in (G). See also .

    Article Snippet: Cd21 cre , The Jackson Laboratory , Cat# 006368.

    Techniques: Gene Expression, Modification, Transduction, Expressing, Plasmid Preparation, shRNA, Cell Culture, In Vitro, Flow Cytometry

    Evaluation of TLS maturation and prognostic analysis of PSCC patients. A UMAP plot of the cell types identified in PSCC through spatial transcriptomic sequencing, depicting 7 distinct cell populations. B Dot plot displaying the expression of cell type-specific markers. The dot size represents the proportion of cells expressing the marker, while the colour intensity indicates the mean expression level. C Regions with AUCell scores for mTLS genes ( BCL6 , AICDA , CD38 , ICOS , CXCR5 , CXCL13 , and CD21 ) above the median were defined as mTLSs, whereas those below the median were classified as iTLSs. D Spatial visualization of AUCell scores for mTLS genes, where warmer colours indicate higher scores. E Spatial distribution of iTLSs (green) and mTLSs (orange) across different regions of PSCC tissues. F Representative images H&E staining and immunofluorescence staining for CD20 (green) and CD21 (red) in iTLSs and mTLSs. G GO enrichment analysis of upregulated genes in mTLS. Darker colours denote more significant enrichment of the pathway, and larger dots represent a greater number of genes involved. H Kaplan–Meier survival curves showing that patients with mTLSs experienced significantly longer overall survival than those with iTLSs, as determined using ssGSEA ( P < 0.05)

    Journal: Cancer Immunology, Immunotherapy : CII

    Article Title: Association of CCL21 + CAFs with B-cell recruitment and TLS maturation in penile squamous cell carcinoma

    doi: 10.1007/s00262-026-04348-5

    Figure Lengend Snippet: Evaluation of TLS maturation and prognostic analysis of PSCC patients. A UMAP plot of the cell types identified in PSCC through spatial transcriptomic sequencing, depicting 7 distinct cell populations. B Dot plot displaying the expression of cell type-specific markers. The dot size represents the proportion of cells expressing the marker, while the colour intensity indicates the mean expression level. C Regions with AUCell scores for mTLS genes ( BCL6 , AICDA , CD38 , ICOS , CXCR5 , CXCL13 , and CD21 ) above the median were defined as mTLSs, whereas those below the median were classified as iTLSs. D Spatial visualization of AUCell scores for mTLS genes, where warmer colours indicate higher scores. E Spatial distribution of iTLSs (green) and mTLSs (orange) across different regions of PSCC tissues. F Representative images H&E staining and immunofluorescence staining for CD20 (green) and CD21 (red) in iTLSs and mTLSs. G GO enrichment analysis of upregulated genes in mTLS. Darker colours denote more significant enrichment of the pathway, and larger dots represent a greater number of genes involved. H Kaplan–Meier survival curves showing that patients with mTLSs experienced significantly longer overall survival than those with iTLSs, as determined using ssGSEA ( P < 0.05)

    Article Snippet: The following antibodies were used: CD20 (Proteintech, 60,271–1-Ig, 1:500), CD21 (Proteintech, 28,206–1-AP, 1:250), ACTA2/α-SMA (Sigma, SAB5700835, 1:300), and CCL21 (Abcam, ab9851, 1:300).

    Techniques: Sequencing, Expressing, Marker, Staining, Immunofluorescence