cacna1e (Proteintech)
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Cacna1e, supplied by Proteintech, used in various techniques. Bioz Stars score: 93/100, based on 6 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Average 93 stars, based on 6 article reviews
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1) Product Images from "METTL3-mediated m 6 A modification of CACNA1E promotes osteosarcoma progression and chemoresistance by enhancing WNT7B-mediated Ca 2+ signaling"
Article Title: METTL3-mediated m 6 A modification of CACNA1E promotes osteosarcoma progression and chemoresistance by enhancing WNT7B-mediated Ca 2+ signaling
Journal: Molecular Cancer
doi: 10.1186/s12943-025-02553-x
Figure Legend Snippet: Identification of CACNA1E as an m 6 A-hypermethylated and upregulated gene in OS. A Starplot illustrating the distribution of genes with differential expression (up/down; |log2fold change|≥ 1 and P < 0.05) and differential m 6 A (hyper/hypo; |log2fold change|≥ 1 and P < 0.05) in OS tissues with adjacent normal tissues. B Heatmap showing the top5 up-/down-regulated genes in OS tissues versus adjacent normal tissues. C CACNA1E mRNA level examined by qRT-PCR in OS and adjacent normal tissues. D CACNA1E mRNA level examined by qRT-PCR in osteoblast cells (hFOB1.19) and OS cells (SJSA-1, MNNG, U2OS, and SAOS2). E Kaplan–Meier survival curves of OS patients ( n = 85) stratified by high and low CACNA1E expression, with log-rank test for comparing survival rate. F Multivariate Cox regression analysis for determining CACNA1E as an independent prognostic factor after adjusting for clinical variables (age, gender, and metastasis status) based on the TARGET database. G - I qRT-PCR and Western blot assays for verifying the stable knockdown of CACNA1E in MNNG and SJSA-1 cells. J , K CCK-8 and ( L , M ) colony formation assays for determining the effect of CACNA1E on OS cell proliferation. N , O Wound healing assay for examining the migration of shNC- and shCACNA1E-transfected OS cells. Photographs are displayed at 0, 6, 12, and 24 h. Scale bar, 100 μm. P - R Analysis of OS cell migration and invasion by Transwell assays. Scale bar, 100 μm. S - U Western blot for examining the effect of CACNA1E on EMT markers in OS cells. These data are presented as the means ± SD of three independent experiments. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001 derived from Student’s t-test or one- or two-way analysis of variance
Techniques Used: Quantitative Proteomics, Quantitative RT-PCR, Expressing, Western Blot, Knockdown, CCK-8 Assay, Wound Healing Assay, Migration, Transfection, Derivative Assay
Figure Legend Snippet: Targeted inhibition of CACNA1E effectively hinders OS growth and lung metastasis in vivo. A - D Photographs of subcutaneous tumor models and dissected tumors. The models were established by subcutaneous injection of shNC- and shCACNA1E-transfected ( A , B ) MNNG and ( C , D ) SJSA-1 cells ( n = 6) into nude mice. E – G Measurement of tumor volume and weight. H Representative H&E-stained images and IHC staining of CACNA1E, Ki-67, and EMT markers in subcutaneous tumor sections. Scale bar, 100 μm. I , J Quantification of IHC staining intensity of CACNA1E, Ki-67, and EMT markers. K Representative bioluminescence images of nude mice that received intravenous injection of shNC- or shCACNA1E-transfected MNNG and SJSA-1 cells labeled with luciferase. L Quantification analysis of bioluminescent images of lung metastases. M Photographs of dissected lungs from mouse tumor metastasis models through injection of shNC- and shCACNA1E-transfected MNNG and SJSA-1 cells via the tail vein. N Representative H&E-stained images of lung sections for showing metastatic cancer nodules. Scale bar, 100 μm. ** P < 0.01; **** P < 0.0001 derived from Student’s t-test or two-way analysis of variance
Techniques Used: Inhibition, In Vivo, Injection, Transfection, Staining, Immunohistochemistry, Labeling, Luciferase, Derivative Assay
Figure Legend Snippet: METTL3-mediated m 6 A modification stabilizes CACNA1E mRNA in OS. A IGV plot visualizing m 6 A peaks within CACNA1E transcript in OS and corresponding normal tissues based on MeRIP-seq. B Prediction of m 6 A motifs within CACNA1E. C Analysis of significant confidence levels of putative m 6 A motifs within CACNA1E. D Relative enrichment of CACNA1E m 6 A level normalized to input in OS cells detected by MeRIP-qPCR. E Pearson correlation analysis between the mRNA levels of METTL3 and CACNA1E in TCGA OS samples. F FISH for detecting CACNA1E mRNA and METTL3 protein in OS cells. Scale bar, 50 μm. G qRT-PCR for measuring the stable knockdown of METTL3 in OS cells. H , I MeRIP-qPCR for detecting CACNA1E m 6 A level in control and METTL3-knockdown OS cells. J Schematic representation of the m 6 A motif (WT) in the 3’ UTR of CACNA1E from MeRIP-seq as well as the mutant m 6 A motif (Mut). K Relative luciferase activity in 293 T cells co-transfected with CACNA1E m 6 A WT or Mut luciferase reporter vector and oe-METTL3 or NC plasmid. L Measurement of CACNA1E mRNA level by qRT-PCR in control and METTL3-knockdown OS cells. M – O Detection of METTL3 and CACNA1E expression by Western blot in control and METTL3-knockdown OS cells. P FISH for detecting CACNA1E mRNA and METTL3 protein in shNC- and shMETTL3-transfected OS cells. Scale bar, 50 μm. Q , R Actinomycin D assay for analyzing the effect of METTL3 silence on the mRNA stability of CACNA1E. These data are presented as the means ± SD of three independent experiments. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001; ns, P > 0.05 derived from Student’s t-test or one- or two-way analysis of variance
Techniques Used: Modification, Quantitative RT-PCR, Knockdown, Control, Mutagenesis, Luciferase, Activity Assay, Transfection, Plasmid Preparation, Expressing, Western Blot, Derivative Assay
Figure Legend Snippet: METTL3 boosts OS progression by mediating m 6 A modification of CACNA1E. A , B Cell viability of shNC- and shMETTL3-transfected OS cells determined by CCK-8. C , D Colony-forming analysis of OS cells. E , F Migratory ability of OS cells evaluated by wound healing assay. Photographs are displayed at 0, 6, 12, and 24 h. Scale bar, 100 μm. G - I Migratory and invasive potential of OS cells detected by Transwell assays. Scale bar, 100 μm. J , K CCK-8 assay of METTL3-knockdown or/and CACNA1E-overexpressing OS cells. L , M Colony formation of METTL3-knockdown or/and CACNA1E-overexpressing OS cells. N , O Wound healing assay of METTL3-knockdown or/and CACNA1E-overexpressing OS cells. Photographs are displayed at 0, 6, 12, and 24 h. Scale bar, 100 μm. P - R Migration and invasion of OS cells measured by Transwell assays. Scale bar, 100 μm. These data are presented as the means ± SD of three independent experiments. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001 derived from one- or two-way analysis of variance
Techniques Used: Modification, Transfection, CCK-8 Assay, Wound Healing Assay, Knockdown, Migration, Derivative Assay
Figure Legend Snippet: IGF2BP2 recognizes and enhances METTL3-mediated m 6 A modification of CACNA1E in OS. A Analysis of the interactions between FLAG-CACNA1E and m 6 A “readers” (especially IGF2BP1/2/3, YTHDF1, and YTHDC1) by Co-IP assay in 293 T cells. B Kaplan–Meier plots of overall survival in high and low IGF2BP2 expression patients with OS. C , D RIP experiment for validating the interactions between METTL3 and CACNA1E as well as between IGF2BP2 and CACNA1E. E Relative luciferase activity in 293 T cells co-transfected with CACNA1E m 6 A wild-type (WT) or mutant (Mut) luciferase reporter vector and oe-IGF2BP2 or NC plasmid. F , G IGF2BP2 and CACNA1E mRNA levels measured by qRT-PCR in shNC- and shIGF2BP2-transfected OS cells. H , I Detection of the mRNA stability of CACNA1E by qRT-PCR in shNC- and shIGF2BP2-transfected OS cells after exposure to actinomycin D for indicated intervals. J , K CCK-8, ( L , M ) colony formation experiment, ( N , O ) wound healing assay, and ( P - R ) Transwell migration and invasion assays of shNC- and shIGF2BP2-transfected OS cells. Scale bar, 100 μm. These data are presented as the means ± SD of three independent experiments. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001; ns, P > 0.05 derived from Student’s t-test or one- or two-way analysis of variance
Techniques Used: Modification, Co-Immunoprecipitation Assay, Expressing, Luciferase, Activity Assay, Transfection, Mutagenesis, Plasmid Preparation, Quantitative RT-PCR, CCK-8 Assay, Wound Healing Assay, Migration, Derivative Assay
Figure Legend Snippet: CACNA1E facilitates OS progression through modulating WNT7B expression. A Volcano plots for differentially expressed transcripts between shCACNA1E- and shNC-transfected OS cells based on RNA-seq data. B KEGG enrichment plots for signaling pathways enriched by the differentially expressed transcripts. C Proteins interacting with WNT7B and CACNA1E using the GeneMANIA database. D CACNA1E and WNT7B mRNA levels in OS and normal tissues. E WNT7B mRNA level examined by qRT-PCR in osteoblast cells (hFOB1.19) and OS cells (SJSA-1, MNNG, U2OS, SAOS2). F – H WNT7B mRNA and protein levels detected by qRT-PCR and Western blot in shCACNA1E- and shNC-transfected OS cells. I WNT7B mRNA level examined by qRT-PCR in shMETTL3- and shNC-transfected OS cells. J , K Cell viability of METTL3-knockdown or/and WNT7B-overexpressing OS cells determined by CCK-8. L , M Colony-forming potential of OS cells. N , O Migratory ability of OS cells assessed by wound healing assay. Photographs are displayed at 0, 6, 12, and 24 h. Scale bar, 100 μm. P - R Migratory and invasive potential of OS cells measured by Transwell assays. Scale bar, 100 μm. S , T Kaplan–Meier plots of overall survival and disease-free survival in OS patients stratified by WNT7B expression. These data are presented as the means ± SD of three independent experiments. ** P < 0.01; *** P < 0.001; **** P < 0.0001 derived from one- or two-way analysis of variance
Techniques Used: Expressing, Transfection, RNA Sequencing, Protein-Protein interactions, Quantitative RT-PCR, Western Blot, Knockdown, CCK-8 Assay, Wound Healing Assay, Derivative Assay
Figure Legend Snippet: CACNA1E affects the WNT7B-mediated non-canonical Wnt/Ca 2+ signaling pathway by transcriptionally regulating WNT7B. A , B Fluo-8 AM calcium assay for determining intracellular Ca 2+ level in shNC- and shCACNA1E-transfected OS cells. Scale bar, 100 μm. C - G CAMK2A, CAMK2N, PLCB2, and PLCB4 mRNA and protein levels detected by qRT-PCR and Western blot in shNC- and shCACNA1E-transfected OS cells. H , I Analysis of intracellular Ca 2+ level by Fluo-8 AM calcium assay in OS cells co-transfected with shCACNA1E and WNT7B overexpression plasmid. Scale bar, 100 μm. J - N CAMK2A, CAMK2N, PLCB2, and PLCB4 mRNA and protein levels assessed by qRT-PCR and Western blot in OS cells co-transfected with shCACNA1E and WNT7B overexpression plasmid. O Schematic diagram of the truncated WNT7B binding motifs. P Relative luciferase activity in 293 T cells transfected with the truncated WNT7B luciferase reporter vectors. Q ChIP-PCR analysis for verifying the binding of CACNA1E with WNT7B promoter. These data are presented as the means ± SD of three independent experiments. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001; ns, P > 0.05 derived from one- or two-way analysis of variance
Techniques Used: Calcium Assay, Transfection, Quantitative RT-PCR, Western Blot, Over Expression, Plasmid Preparation, Binding Assay, Luciferase, Activity Assay, Derivative Assay
Figure Legend Snippet: Targeted inhibition of CACNA1E improves MTX sensitivity and overcomes MTX resistance through WNT7B-mediated calcium signaling pathway. A - C P-gp and CACNA1E protein levels measured by Western blot in parental and MTX-resistant OS cells. D , E Cell viability of shNC-/shCACNA1E-transfected and MTX-treated OS cells. F , G Apoptosis of shNC-/shCACNA1E-transfected and MTX-treated OS cells analyzed by flow cytometry. H , I Colony-forming potential of shNC-/shCACNA1E-transfected and MTX-treated MTX-resistant OS cells. J - M IC50 value of MTX in shNC-/shCACNA1E-transfected MTX-resistant OS cells. N - Q Representative Chou-Talalay plots and CI-Fa plots showing the synergistic effects between CACNA1E knockdown and MTX analyzed using the CompuSyn software. R , S Apoptosis of shNC-/shCACNA1E-transfected and MTX-treated MTX-resistant OS cells measured by TUNEL staining. Scale bar, 100 μm. T , U Intracellular Ca 2+ level in shNC-/shCACNA1E-transfected and MTX-treated MTX-resistant OS cells detected by Fluo-8 AM calcium assay. Scale bar, 100 μm. V , W WNT7B protein level measured by Western blot in the above cells. These data are presented as the means ± SD of three independent experiments. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001 derived from Student’s t-test or one- or two-way analysis of variance
Techniques Used: Inhibition, Western Blot, Transfection, Flow Cytometry, Knockdown, Software, TUNEL Assay, Staining, Calcium Assay, Derivative Assay
Figure Legend Snippet: Targeted inhibition of CACNA1E and MTX synergistically prevent tumor growth in vivo. A - D Photographs of subcutaneous tumors of nude mice after subcutaneous infection of shNC-/shCACNA1E-transfected ( A , B ) MNNG and ( C , D ) SJSA-1 cells and intraperitoneal administration of MTX ( n = 6). E , F The size of subcutaneous tumors at different time points. G - J The size and weight of subcutaneous tumors. K Representative images of H&E-stained subcutaneous tumors and IHC images of Ki-67, CACAN1E, and WNT7B. Scale bar, 100 μm. L , M Quantification of Ki-67, CACAN1E, and WNT7B expression. (N, O) IHC assay for detecting the proteins levels of CACNA1E and WNT7B in MTX-sensitive and -resistant OS tissues. Scale bar, 100 μm. * P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001; ns, P > 0.05 derived from Student’s t-test or one- or two-way analysis of variance
Techniques Used: Inhibition, In Vivo, Infection, Transfection, Staining, Expressing, Derivative Assay
Figure Legend Snippet: A graphic schematic of the mechanism by which CACNA1E m 6 A-modified by METTL3 in an IGF2BP2-dependent manner activates WNT7B-mediated non-canonical Wnt/Ca 2+ signaling and thus promotes OS progression and MTX resistance
Techniques Used: Modification



