CXADR, known as Coxsackievirus and adenovirus receptor, is a transmembrane glycoprotein primarily identified as a cellular receptor for enteroviruses such as coxsackievirus and adenovirus. The discovery of CXADR stemmed from investigations into the mechanisms underlying viral infection and cellular entry. Initial studies focused on identifying host factors crucial for viral attachment and internalization, leading to the isolation and characterization of CXADR. Subsequent research elucidated its role not only in viral pathogenesis but also in various physiological processes, including cell-cell adhesion and signal transduction.
The development of the Luc-Human-CXADR Stable Cell Line (LLC) involved a rigorous process integrating molecular biology techniques with cell culture methodologies. Initially, human CXADR cDNA was cloned and stably integrated into host cells using viral vectors or transfection methods. Following transfection, cells expressing CXADR were selected and expanded under appropriate antibiotic selection. To enhance stability and expression levels, promoter elements and regulatory sequences were optimized. Finally, luciferase reporter genes were introduced into the CXADR-expressing cells to monitor cellular responses upon viral infection or other stimuli. The LLC serves as a valuable tool for studying CXADR-mediated viral entry mechanisms, viral-host interactions, and screening potential antiviral agents.
It is widely recognized that miRNAs play a significant role in regulating gene expression by causing translational repression. Researchers investigated the role of miRNAs in cancer, focusing on their association with polysomes in malignant mesothelioma (MPM) cells. Despite the expression of many miRNAs, only a small percentage were found physically associated with polysomes. Among them, miR-24-3p was identified as a promigratory miRNA that positively regulated Rho-GTP activity. Inhibition of miR-24-3p reduced MPM cell growth. Analysis revealed common down-regulated genes targeted by miR-24-3p in mesothelioma cell lines, suggesting its involvement in cancer progression. Notably, cingulin, a tight junction protein inhibiting Rho-GTP activity, was identified as a specific target of miR-24-3p. Overexpression of miR-24-3p led to translational repression of cingulin protein, confirming its role as an oncomir. This study suggests that identifying polysome-associated miRNAs can efficiently distinguish biologically active miRNAs from inactive ones.
Figure 1. The effect of miR-24-3p on migration and adhesion gene reprogramming in REN and MM98 cells is demonstrated using the Luc CXADR cell line by researchers. (Oliveto S, et al., 2016)
1. Viral Entry Mechanism Studies: LLC aids in elucidating viral entry mechanisms by expressing human CXADR, facilitating research on viral tropism and infection dynamics.
2. Antiviral Drug Screening: LLC serves as a reliable model for screening antiviral drugs targeting CXADR-mediated infections, expediting drug discovery efforts.
3. Host-Pathogen Interaction Research: LLC enables the exploration of CXADR regulation and its impact on viral susceptibility, enhancing understanding of virus-host interactions.
4. Vaccine Efficacy Assessment: LLC is valuable for assessing candidate vaccines against CXADR-utilizing viruses, informing vaccine design and evaluation strategies.
5. Pathogenesis Investigation: LLC mimics CXADR-mediated viral infections, facilitating detailed studies on viral pathogenesis mechanisms and aiding in the development of therapeutic interventions.
Customer Q&As
What is the rationale behind utilizing the Luc-Human-CXADR stable cell line for research purposes?
A: The Luc-Human-CXADR stable cell line offers a convenient model system to investigate cellular processes involving CXADR, facilitating studies on viral infection, cell adhesion, and signal transduction.
How was the stability of CXADR expression assessed and maintained in this stable cell line?
A: Stability of CXADR expression was monitored through luciferase reporter activity assays or quantitative PCR assays over successive passages, with appropriate selection pressure applied.
Can you elaborate on the characterization of the Luc-Human-CXADR stable cell line in terms of CXADR localization and function?
A: Characterization includes immunofluorescence analysis to assess CXADR subcellular localization and functional assays to evaluate its role in viral entry or cell-cell adhesion processes.
What steps were taken to ensure the fidelity and reproducibility of CXADR expression in this stable cell line?
A: Stringent quality control measures involved confirmation of transgene integration, absence of mycoplasma contamination, and periodic validation of CXADR expression levels under standardized conditions.
How does the expression pattern of CXADR in this stable cell line correlate with its expression in native tissues or disease states?
A: Comparative analysis with expression data from normal tissues or pathological conditions provides insights into the relevance of CXADR expression in disease pathogenesis and potential therapeutic targeting.
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Customer Reviews
Luc-tagged CXADR: Illuminates viral entry mechanisms, clarity.
This Luc-tagged CXADR cell line is a gem! It's like having a flashlight in the dark, illuminating viral entry mechanisms for me. So much clarity!
United Kingdom
10/29/2022
Effortless insights into viral entry
Using this cell line feels like having a cheat code! Luc-tagged CXADR makes viral entry studies a breeze, helping me unlock new insights effortlessly.
Beacon Luc-tagged CXADR
Can't get enough of this cell line! Luc-tagged CXADR is like a beacon, guiding me through complex viral infection pathways with ease.
United Kingdom
08/13/2022
Confidence
So grateful for this Luc-tagged CXADR cell line! It's like having a secret weapon in my lab, simplifying viral entry experiments and giving me confidence in my results.
Enjoyable research journey
This Luc-tagged CXADR cell line is a lifesaver! It's like having a spotlight on viral entry mechanisms, making my research journey smoother and more enjoyable.
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