Precision and Perseverance: Tumor-Targeted Gene Editing Quest

 

In the year of 2022, Avery Zhu embarked on a thrilling scientific quest with a project titled “pH-Responsive Peptide for Tumor Targeted Delivery of CRISPR-Cas9 Ribonucleoprotein. Guided by the brilliant Prof. Clarence Wong, he dove into the fascinating world of gene editing. The mission was to harness the power of pH-responsive peptides to deliver CRISPR/Cas9 into cancer cells, a task that proved to be as daunting as it was exciting. The greatest challenge lay in producing uncontaminated RNA, necessitating the creation of a sustainable manufacturing line. After six months of persistent trial and error, she finally triumphed. The unwavering support from Avery’s mentors and peers was essential, and the project culminated in a top-grade thesis. This journey not only expanded her scientific expertise but also strengthened her resilience and patience.

 


FS student

Ms. ZHU Yunxin Avery

Faculty of Science
Department of Applied Biology and Chemical Technology

Award:

  • Outstanding Student Award of the Department 2023, The Hong Kong Polytechnic University

 

Domain Expertise:

pH-Responsive Peptide for Targeted Delivery

Avery’s project involves using a pH-responsive peptide to guide the CRISPR/Cas9 complex into cancer cells. This is an example of targeted drug delivery, where the peptide acts as a signaling molecule that responds to the acidic environment of tumor cells, ensuring that the gene-editing tool is delivered specifically to cancer cells, minimizing effects on healthy cells.

CRISPR/Cas9 Gene Editing

CRISPR/Cas9 is a revolutionary gene-editing technology that allows for precise modifications of DNA. In this project, it is used to disable a gene essential for cancer cell progression, showcasing its potential as a novel cancer therapeutic. This application of CRISPR/Cas9 highlights its role in developing targeted cancer treatments.

Manufacturing of CRISPR/Cas9 Complex

Avery’s project required establishing a sustainable manufacturing line to produce the CRISPR/Cas9 complex, which includes the Cas9 protein and a single-strand RNA. This involves biotechnological processes to produce and purify these components, ensuring they are functional and uncontaminated for research and therapeutic use.

RNA Production

Producing functional RNA molecules for the CRISPR/Cas9 complex involved overcoming challenges related to contamination and stability. This aspect of the project required developing new protocols and using high-grade biosafety measures, illustrating the complexities of RNA biotechnology and its critical role in gene-editing applications.

Therapeutic Protein Modifications

The project involved learning about therapeutic protein modifications, which are essential for ensuring that proteins like Cas9 are stable, functional, and suitable for clinical applications. This includes understanding how to modify and handle proteins to maintain their activity and specificity in a therapeutic context.

 

Lifelong Learning Excellence:

Critical Thinking and Problem-solving

Avery overcame numerous challenges, such as producing uncontaminated RNA and verifying the functionality of the CRISPR/Cas9 complex. The ability to troubleshoot and find alternative solutions, like using a more sensitive technique, demonstrates strong problem-solving skills. This skill is crucial for adapting to unexpected situations and finding effective solutions.

Networking and Collaboration

She received support from supervisors, lab members, and technicians which highlights the importance of collaboration and networking. Working with others, sharing knowledge, and receiving encouragement are vital for personal and professional growth. Building a network of supportive colleagues can enhance learning opportunities and provide valuable insights.

Adaptability and Flexibility

The need to establish new protocols and adopt protective measures for RNA production illustrates adaptability and flexibility. Being open to change and willing to adjust methods and approaches is crucial for lifelong learning, as it allows Avery to respond effectively to new information and evolving circumstances.

Continuous Improvement and Learning from Mistakes

Avery’s learning journey reflects a commitment to continuous learning, from gaining knowledge in gene editing and therapeutic protein modifications to understanding the gap between theoretical research and clinical application. This dedication to self-improvement and expanding one's skill set is fundamental for lifelong learning, enabling her to stay current and advance in their fields.

 


Inspiring Quotes:



Explore More:

The pursuit of knowledge is a lifelong journey! To further expand your knowledge and continue your personal and professional growth. Click and explore the following learning resources:

Domain Knowledge OER

pH-Responsive Peptide for Targeted Delivery

CRISPR/Cas9 Gene Editing

Manufacturing of CRISPR/Cas9 Complex

RNA Production

Therapeutic Protein Modifications

Lifelong Learning OER

Critical Thinking and Problem-solving

Networking and Collaboration

Adaptability and Flexibility

Continuous Improvement and Learning from Mistakes