1.Construction and validation of a synthetic phage-displayed nanobody library
Minju KIM ; Xuelian BAI ; Hyewon IM ; Jisoo YANG ; Youngju KIM ; Minjoo MJ KIM ; Yeonji OH ; Yuna JEON ; Hayoung KWON ; Seunghyun LEE ; Chang-Han LEE
The Korean Journal of Physiology and Pharmacology 2024;28(5):457-467
Nanobodies derived from camelids and sharks offer unique advantages in therapeutic applications due to their ability to bind to epitopes that were previously inaccessible. Traditional methods of nanobody development face challenges such as ethical concerns and antigen toxicity. Our study presents a synthetic, phagedisplayed nanobody library using trinucleotide-directed mutagenesis technology, which allows precise amino acid composition in complementarity-determining regions (CDRs), with a focus on CDR3 diversity. This approach avoids common problems such as frameshift mutations and stop codon insertions associated with other synthetic antibody library construction methods. By analyzing FDA-approved nanobodies and Protein Data Bank sequences, we designed sub-libraries with different CDR3 lengths and introduced amino acid substitutions to improve solubility. The validation of our library through the successful isolation of nanobodies against targets such as PD-1, ATXN1 and STAT3 demonstrates a versatile and ethical platform for the development of high specificity and affinity nanobodies and represents a significant advance in biotechnology.
2.The Unique Challenges and Expanded Role of Infection Prevention and Control in the Military: A Strategic Approach for Wartime and Peacetime
Hyewon LEE ; Suryeong GO ; Hong Sang OH
Korean Journal of healthcare-associated Infection Control and Prevention 2024;29(2):73-81
Several wars and pandemics have demonstrated the serious impacts of infectious diseases on the military, highlighting the importance of infection control. As a national defense organiza-tion, the military operates within specific cultural and environmental contexts distinct from civilian organizations. The unique conditions of war necessitate extensive efforts to prevent in-fections. Therefore, a strategic approach based on the understanding of its unique strengths and challenges is essential for proper infection control in the military. As the military is nationally dispersed and in contact with the surrounding communities, the readiness of this organization,along with its personnel, resources, and operational systems, is crucial for the protection ofsoldiers and civilians during infectious disease outbreaks. Therefore, joint efforts and academic and practical exchanges between the military and civilian sectors based on the comprehensiveunderstanding of the military conditions and operations are necessary for prompt response to and control of infectious diseases.
3.Construction and validation of a synthetic phage-displayed nanobody library
Minju KIM ; Xuelian BAI ; Hyewon IM ; Jisoo YANG ; Youngju KIM ; Minjoo MJ KIM ; Yeonji OH ; Yuna JEON ; Hayoung KWON ; Seunghyun LEE ; Chang-Han LEE
The Korean Journal of Physiology and Pharmacology 2024;28(5):457-467
Nanobodies derived from camelids and sharks offer unique advantages in therapeutic applications due to their ability to bind to epitopes that were previously inaccessible. Traditional methods of nanobody development face challenges such as ethical concerns and antigen toxicity. Our study presents a synthetic, phagedisplayed nanobody library using trinucleotide-directed mutagenesis technology, which allows precise amino acid composition in complementarity-determining regions (CDRs), with a focus on CDR3 diversity. This approach avoids common problems such as frameshift mutations and stop codon insertions associated with other synthetic antibody library construction methods. By analyzing FDA-approved nanobodies and Protein Data Bank sequences, we designed sub-libraries with different CDR3 lengths and introduced amino acid substitutions to improve solubility. The validation of our library through the successful isolation of nanobodies against targets such as PD-1, ATXN1 and STAT3 demonstrates a versatile and ethical platform for the development of high specificity and affinity nanobodies and represents a significant advance in biotechnology.
4.Construction and validation of a synthetic phage-displayed nanobody library
Minju KIM ; Xuelian BAI ; Hyewon IM ; Jisoo YANG ; Youngju KIM ; Minjoo MJ KIM ; Yeonji OH ; Yuna JEON ; Hayoung KWON ; Seunghyun LEE ; Chang-Han LEE
The Korean Journal of Physiology and Pharmacology 2024;28(5):457-467
Nanobodies derived from camelids and sharks offer unique advantages in therapeutic applications due to their ability to bind to epitopes that were previously inaccessible. Traditional methods of nanobody development face challenges such as ethical concerns and antigen toxicity. Our study presents a synthetic, phagedisplayed nanobody library using trinucleotide-directed mutagenesis technology, which allows precise amino acid composition in complementarity-determining regions (CDRs), with a focus on CDR3 diversity. This approach avoids common problems such as frameshift mutations and stop codon insertions associated with other synthetic antibody library construction methods. By analyzing FDA-approved nanobodies and Protein Data Bank sequences, we designed sub-libraries with different CDR3 lengths and introduced amino acid substitutions to improve solubility. The validation of our library through the successful isolation of nanobodies against targets such as PD-1, ATXN1 and STAT3 demonstrates a versatile and ethical platform for the development of high specificity and affinity nanobodies and represents a significant advance in biotechnology.
5.The Unique Challenges and Expanded Role of Infection Prevention and Control in the Military: A Strategic Approach for Wartime and Peacetime
Hyewon LEE ; Suryeong GO ; Hong Sang OH
Korean Journal of healthcare-associated Infection Control and Prevention 2024;29(2):73-81
Several wars and pandemics have demonstrated the serious impacts of infectious diseases on the military, highlighting the importance of infection control. As a national defense organiza-tion, the military operates within specific cultural and environmental contexts distinct from civilian organizations. The unique conditions of war necessitate extensive efforts to prevent in-fections. Therefore, a strategic approach based on the understanding of its unique strengths and challenges is essential for proper infection control in the military. As the military is nationally dispersed and in contact with the surrounding communities, the readiness of this organization,along with its personnel, resources, and operational systems, is crucial for the protection ofsoldiers and civilians during infectious disease outbreaks. Therefore, joint efforts and academic and practical exchanges between the military and civilian sectors based on the comprehensiveunderstanding of the military conditions and operations are necessary for prompt response to and control of infectious diseases.
6.Visualization of Borderline Coronary Artery Lesions by CT Angiography and Coronary Artery Disease Reporting and Data System
Hyewon PARK ; Yu-Whan OH ; Ki Yeol LEE ; Hwan Seok YONG ; Cherry KIM ; Sung Ho HWANG
Journal of the Korean Society of Radiology 2024;85(2):297-307
Coronary artery disease (CAD) narrows vessel lumens at the sites of atherosclerosis, increasing the risk of myocardial ischemia or infarction. Early and accurate diagnosis of CAD is crucial to significantly improve prognosis and management. CT angiography (CTA) is a noninvasive imaging technique that enables assessment of vascular structure and stenosis with high resolution and contrast. Coronary CTA is useful in the diagnosis of CAD. Recently, the CAD-reporting and data system (CAD-RADS), a diagnostic classification system based on coronary CTA, has been developed to improve intervention efficacy in patients suspected of CAD. While the CADRAD is based on CTA, it includes borderline categories where interpreting the coronary artery status solely based on CTA findings may be challenging. This review introduces CTA findings that fall within the CAD-RADS categories that necessitate additional tests to decide to perform invasive coronary angiography and discusses appropriate management strategies.
7.Visualization of Borderline Coronary Artery Lesions by CT Angiography and Coronary Artery Disease Reporting and Data System
Hyewon PARK ; Yu-Whan OH ; Ki Yeol LEE ; Hwan Seok YONG ; Cherry KIM ; Sung Ho HWANG
Journal of the Korean Society of Radiology 2024;85(2):297-307
Coronary artery disease (CAD) narrows vessel lumens at the sites of atherosclerosis, increasing the risk of myocardial ischemia or infarction. Early and accurate diagnosis of CAD is crucial to significantly improve prognosis and management. CT angiography (CTA) is a noninvasive imaging technique that enables assessment of vascular structure and stenosis with high resolution and contrast. Coronary CTA is useful in the diagnosis of CAD. Recently, the CAD-reporting and data system (CAD-RADS), a diagnostic classification system based on coronary CTA, has been developed to improve intervention efficacy in patients suspected of CAD. While the CADRAD is based on CTA, it includes borderline categories where interpreting the coronary artery status solely based on CTA findings may be challenging. This review introduces CTA findings that fall within the CAD-RADS categories that necessitate additional tests to decide to perform invasive coronary angiography and discusses appropriate management strategies.
8.The Unique Challenges and Expanded Role of Infection Prevention and Control in the Military: A Strategic Approach for Wartime and Peacetime
Hyewon LEE ; Suryeong GO ; Hong Sang OH
Korean Journal of healthcare-associated Infection Control and Prevention 2024;29(2):73-81
Several wars and pandemics have demonstrated the serious impacts of infectious diseases on the military, highlighting the importance of infection control. As a national defense organiza-tion, the military operates within specific cultural and environmental contexts distinct from civilian organizations. The unique conditions of war necessitate extensive efforts to prevent in-fections. Therefore, a strategic approach based on the understanding of its unique strengths and challenges is essential for proper infection control in the military. As the military is nationally dispersed and in contact with the surrounding communities, the readiness of this organization,along with its personnel, resources, and operational systems, is crucial for the protection ofsoldiers and civilians during infectious disease outbreaks. Therefore, joint efforts and academic and practical exchanges between the military and civilian sectors based on the comprehensiveunderstanding of the military conditions and operations are necessary for prompt response to and control of infectious diseases.
9.Construction and validation of a synthetic phage-displayed nanobody library
Minju KIM ; Xuelian BAI ; Hyewon IM ; Jisoo YANG ; Youngju KIM ; Minjoo MJ KIM ; Yeonji OH ; Yuna JEON ; Hayoung KWON ; Seunghyun LEE ; Chang-Han LEE
The Korean Journal of Physiology and Pharmacology 2024;28(5):457-467
Nanobodies derived from camelids and sharks offer unique advantages in therapeutic applications due to their ability to bind to epitopes that were previously inaccessible. Traditional methods of nanobody development face challenges such as ethical concerns and antigen toxicity. Our study presents a synthetic, phagedisplayed nanobody library using trinucleotide-directed mutagenesis technology, which allows precise amino acid composition in complementarity-determining regions (CDRs), with a focus on CDR3 diversity. This approach avoids common problems such as frameshift mutations and stop codon insertions associated with other synthetic antibody library construction methods. By analyzing FDA-approved nanobodies and Protein Data Bank sequences, we designed sub-libraries with different CDR3 lengths and introduced amino acid substitutions to improve solubility. The validation of our library through the successful isolation of nanobodies against targets such as PD-1, ATXN1 and STAT3 demonstrates a versatile and ethical platform for the development of high specificity and affinity nanobodies and represents a significant advance in biotechnology.
10.Visualization of Borderline Coronary Artery Lesions by CT Angiography and Coronary Artery Disease Reporting and Data System
Hyewon PARK ; Yu-Whan OH ; Ki Yeol LEE ; Hwan Seok YONG ; Cherry KIM ; Sung Ho HWANG
Journal of the Korean Society of Radiology 2024;85(2):297-307
Coronary artery disease (CAD) narrows vessel lumens at the sites of atherosclerosis, increasing the risk of myocardial ischemia or infarction. Early and accurate diagnosis of CAD is crucial to significantly improve prognosis and management. CT angiography (CTA) is a noninvasive imaging technique that enables assessment of vascular structure and stenosis with high resolution and contrast. Coronary CTA is useful in the diagnosis of CAD. Recently, the CAD-reporting and data system (CAD-RADS), a diagnostic classification system based on coronary CTA, has been developed to improve intervention efficacy in patients suspected of CAD. While the CADRAD is based on CTA, it includes borderline categories where interpreting the coronary artery status solely based on CTA findings may be challenging. This review introduces CTA findings that fall within the CAD-RADS categories that necessitate additional tests to decide to perform invasive coronary angiography and discusses appropriate management strategies.

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