circRNA由于结构的特殊性，与miroRNA和lncRNA有着很大差异，让研究者对于它的功能的研究也是难于开展。吉赛生物经过不断设计、验证和优化，先后测试了30多种circRNA表达框架，优化出了特异性准确过表达circRNA分子的载体。载体含有表达circRNA的表达框，可以在细胞内通过RNA剪接形成circ的RNA分子；广大研究者可以将目标circRNA的线性序列PCR扩增出来，直接连接到载体上生成目标circRNA分子。

过表达载体

l 过表达效率高：circRNA表达载体上加有吉赛生物专利技术的上下游环化框架，验证过的所有 circRNA都能显著过表达50倍以上，最高可过表达800倍。

l 序列环化准确：环化框架内部引入吉赛生物专利技术的环化介导序列，有效保证目标 circRNA的线性序列准确环化，验证过的所有circRNA都能准确环化，无碱基添加或缺失。

l 过表达稳定性高：验证过的目标 circRNA从200nt到2500nt序列都能实现准确高效过表达。

l 适用范围广：pCD5-ciR、pCD25-ciR 可转染细胞瞬时表达，pLO5-ciR、pLC5-ciR可转染细胞瞬时表达，也可包装慢病毒构建稳定细胞系，pLC5-ciR可同时表达 GFP 荧光和 Puromycin 抗性基因，可以方便地进行筛选。

我们提供：

1、 详细的实验报告；

2、 测序文件；

3、 过表达质粒/病毒/稳定细胞系。

2018年客户文章：

1. A novel plasma circular RNA circ FARSA is a potential biomarker for non-small cell lung cancer. Cancer Medicine.
2. A novel protein encoded by the circular form of the SHPRH gene suppresses glioma tumorigenesis. Oncogene
3. Circular RNA circ-ITCH inhibits bladder cancer progression by sponging miR-17/ miR-224 and regulating p21, PTEN expression. Molecular Cancer
4. Increased circular RNA hsa_circ_0012673 acts as a sponge of miR-22 to promote lung adenocarcinoma proliferation. Biochemical & Biophysical Research Communications.
5. circFGFR4 Promotes Differentiation of Myoblastsvia Binding miR-107 to Relieve Its Inhibitionof Wnt3a. Molecular Therapy-Nucleic Acids
6. Testin was regulated by circRNA3175‐miR182 and inhibited endometrial epithelial cell apoptosis in pre‐receptive endometrium of dairy goats. JOURNAL OF CELLULAR PHYSIOLOGY.
7. Circular RNA ciRS-7 accelerates ESCC progression through acting as a miR-876-5p sponge to enhance MAGE-A family expression. Cancer Letters. 
8. Circular RNA expression profiles of mouse ovaries during postnatal development and the function of circular RNA epidermal growth factor receptor in granulosa cells. Metabolism Clinical and Experimental.
9. Exosomal circRNA_100284 from arsenite-transformed cells, via microRNA-217 regulation of EZH2, is involved in the malignant transformation of human hepatic cells by accelerating the cell cycle and promoting cell proliferation. Cell Death and Disease.
10. Circular RNA hsa_circRNA_103809 promotes lung cancer progression via facilitating ZNF121-dependent MYC expression by sequestering miR-4302. Biochemical and Biophysical Research Communications.
11. Circular RNA circSVIL Promotes Myoblast Proliferation and Differentiation by Sponging miR-203 in Chicken. Frontiers in Genetics.
12. Circ-8073 regulates CEP55 by sponging miR-449a to promote caprine endometrial epithelial cells proliferation via the PI3K/AKT/mTOR pathway. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH.
13. CircIRAK3 sponges miR-3607 to facilitate breast cancer metastasis. Cancer Letters.
14. Overexpressing circular RNA hsa_circ_0002052 impairs osteosarcoma progression via inhibiting Wnt/b-catenin pathway by regulating miR1205/APC2 axis. Biochemical and Biophysical Research Communications. 
15. Circ-UBR5: An exonic circular RNA and novel small nuclear RNA involved in RNA splicing. Biochemical and Biophysical Research Communications.
16. CircSNCA downregulation by pramipexole treatment mediates cell apoptosis and autophagy in Parkinson’s disease by targeting miR-7. Aging-US.
17. Hsa_circ_0033155: A potential novel biomarker for non‑small cell lung cancer. Experimental and Therapeutic Medicine.
18. CircRNA-9119 regulates the expression of prostaglandin-endoperoxide synthase 2 (PTGS2) by sponging miR-26a in the endometrial epithelial cells of dairy goat. REPRODUCTION FERTILITY AND DEVELOPMENT.
19. Circular RNA ciRS-7 Maintains Metastatic Phenotypes as a ceRNA of miR-1299 to Target MMPs. MOLECULAR CANCER RESEARCH.
20. A novel circular RNA hsa_circ_0020123 exerts oncogenic properties through suppression of miR-144 in non-small cell lung cancer. American Journal of Cancer Research.
21. A Zfp609 circular RNA regulates myoblast differentiation by sponging miR-194-5p. International Journal of Biological Macromolecules.
22. Emerging roles of circRNA_NEK6 targeting miR-370-3p in the proliferation and invasion of thyroid cancer via Wnt signaling pathway. Cancer Biology & Therapy.
23. Tandem DNAzyme for double digestion: a new tool for circRNA suppression. Biological Chemistry.
24. CircRNA hsa_circ_100395 regulates miR-1228/ TCF21 pathway to inhibit lung cancer progression. Cell Cycle.
25. Hsa_circ_0008309 may be a potential biomarker for oral squamous cell carcinoma. DISEASE MARKERS.
26. CircZnF609 promotes breast cancer cell growth, migration, and invasion by elevating p70s6K1 via sponging miR-145-5p. Cancer Management and Research.
27. Circular RNA BCRC-3 suppresses bladder cancer proliferation through miR-182-5p/p27 axis. Molecular Cancer.
28. A Novel Circular RNA Generated by FGFR2 Gene Promotes Myoblast Proliferation and Differentiation by Sponging miR-133a-5p and miR-29b-1-5p. Cells.
29. FLI1 exonic circular RNAs as a novel oncogenic driver to promote tumor metastasis in small cell lung cancer. CLINICAL CANCER RESEARCH.
30. The pro-metastasis effect of circANKS1B in breast cancer. Molecular Cancer.
31. CircPUM1 promotes the malignant behavior of lung adenocarcinoma by regulating miR-326. Biochemical and Biophysical Research Communications.
32. Circular RNA profiling identifies circADAMTS13 as a miR-484 sponge which suppresses cell proliferation in hepatocellular carcinoma. Molecular Oncology.
33. Cis-acting circ-CTNNB1 promotes β-catenin signaling and cancer progression via DDX3-mediated transactivation of YY1. CANCER RESEARCH.