• Molecules and Cells
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• 제39권9호
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• pp.687-691
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• 2016

Transcription activator-like effector nucleases (TALENs) are powerful tools for targeted genome editing in diverse cell types and organisms. However, the highly identical TALE repeat sequences make it challenging to assemble TALEs using conventional cloning approaches, and multiple repeats in one plasmid are easily catalyzed for homologous recombination in bacteria. Although the methods for TALE assembly are constantly improving, these methods are not convenient because of laborious assembly steps or large module libraries, limiting their broad utility. To overcome the barrier of multiple assembly steps, we report a one-step system for the convenient and flexible assembly of a 180 TALE module library. This study is the first demonstration to ligate 9 mono-/dimer modules and one circular TALEN backbone vector in a one step process, generating 9.5 to 18.5 repeat sequences with an overall assembly rate higher than 50%. This system makes TALEN assembly much simpler than the conventional cloning of two DNA fragments because this strategy combines digestion and ligation into one step using circular vectors and different modules to avoid gel extraction. Therefore, this system provides a convenient tool for the application of TALEN-mediated genome editing in scientific studies and clinical trials.

• 한국간호교육학회지
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• 제25권4호
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• pp.459-470
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• 2019

Purpose: The purpose of this qualitative study was to identify the nature of precocious puberty and to explore what it means in primary schools. Methods: The participants of this phenomenological study were nine primary school girls who were diagnosed with precocious puberty and experienced hormone therapeutics, applying a convenience sampling method. Data were collected from July 2017 to January 2018 through individual in-depth interviews of the participants, including gestures, facial expressions and nonverbal means. The data analysis followed the method of Giorgi. Results: The study identified 37 concepts, 12 clusters, and five themes from experiences of precocious puberty. The essential five themes were as follows: 'ashamed and concealing experience', 'there is no therapeutics option', 'difficulties in the process of therapeutics', 'difficulties in daily life', and 'ambivalence toward therapeutics'. Conclusion: The findings of this study indicate physical, psychological and social difficulties faced by girls with precocious puberty. Based on this results of the study, it is necessary to develop nursing intervention programs focusing on healthy growth and development for children with precocious puberty.

• 멤브레인
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• 제30권6호
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• pp.373-384
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• 2020

바이오의약품 중에서도 항체의약품의 수요가 증가함에 따라 항체를 상업용으로 개발하기 위한 연구가 활발히 진행되고 있다. 항체의약품의 제조공정 중 downstream 공정은 의약품 성능에 직접적으로 영향을 미치기 때문에 중요하게 다뤄지며, 본 총설은 그 중에서도 농축 및 제제화를 목적으로 행해지는 한외여과 및 정용여과 공정에서 사용되는 한외여과막의 주요 제품 및 공정 특성을 살펴보고, 최근 연구 동향에 대해 소개하고자 한다.

• Molecules and Cells
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• 제46권1호
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• pp.41-47
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• 2023

The rapid development of mRNA vaccines has contributed to the management of the current coronavirus disease 2019 (COVID-19) pandemic, suggesting that this technology may be used to manage future outbreaks of infectious diseases. Because the antigens targeted by mRNA vaccines can be easily altered by simply changing the sequence present in the coding region of mRNA structures, it is more appropriate to develop vaccines, especially during rapidly developing outbreaks of infectious diseases. In addition to allowing rapid development, mRNA vaccines have great potential in inducing successful antigen-specific immunity by expressing target antigens in cells and simultaneously triggering immune responses. Indeed, the two COVID-19 mRNA vaccines approved by the U.S. Food and Drug Administration have shown significant efficacy in preventing infections. The ability of mRNAs to produce target proteins that are defective in specific diseases has enabled the development of options to treat intractable diseases. Clinical applications of mRNA vaccines/therapeutics require strategies to safely deliver the RNA molecules into targeted cells. The present review summarizes current knowledge about mRNA vaccines/ therapeutics, their clinical applications, and their delivery strategies.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.1022-1023
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• 2005

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.870-871
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• 2005

• 비만대사연구학술지
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• 제1권2호
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• pp.47-52
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• 2022

Digital therapeutics (DTx) are emerging as a novel solution to improve lifestyle and prevent non-communicable diseases. Obesity is a complex, multi-factorial, chronic condition that requires patient-centered lifestyle modification. DTx, such as mobile applications and wearables, may offer easily accessible, efficient, and personalized care in the field of obesity and metabolic diseases. Yet, there is controversy over its clinical usefulness. This review will provide a comprehensive overview of DTx, including its potential role and current limitation in obesity care, based on recent literature.

• Annals of Clinical Neurophysiology
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• 제23권1호
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• pp.29-34
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• 2021

New therapeutics in neurology are expanding at an unprecedented pace. In addition to the classic enzyme-replacement therapies, monoclonal antibodies are increasingly being used to modulate autoimmunity. RNA therapeutics are an emerging class, together with gene and cell therapies. The nomenclature of international nonproprietary names helps us to recognize these new drugs according to their class and function. Suffixes denote major categories of the drug, while infixes provide additional information such as the source and target.

• International Journal of Oral Biology
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• 제38권4호
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• pp.155-160
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• 2013

The major issue in the development of nucleic acid based therapeutics is the inefficient delivery of these agents into cells. We prepared cholesterol conjugated spermine and evaluated its usefulness as a delivery modality for antisense oligonucleotides in HeLa-Luc cells. A 2'-O-methyl antisense oligonucleotide sequence, designed to correct splicing at an aberrant intron inserted into a normal luciferase reporter gene, was used for complex formation with cholesterol conjugated spermine. Effective delivery of this antisense agent into nucleus would results in the expression of a luciferasereporter gene product. The cholesterol-spermine formed stable complexes with the antisense oligonucleotide and showed modest delivery activity. Furthermore, this delivery activity was maintained even in the presence of serum proteins, mimicking in vivo conditions. Cholesterol-spermine thus has potential as a delivery system for antisense oligonucleotides into cells.

• BMB Reports
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• 제48권4호
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• pp.234-237
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• 2015

Aptamers, composed of single-stranded DNA or RNA oligonucleotides that interact with target molecules through a specific three-dimensional structure, are selected from pools of combinatorial oligonucleotide libraries. With their high specificity and affinity for target proteins, ease of synthesis and modification, and low immunogenicity and toxicity, aptamers are considered to be attractive molecules for development as anticancer therapeutics. Two aptamers - one targeting nucleolin and a second targeting CXCL12 - are currently undergoing clinical trials for treating cancer patients, and many more are under study. In this mini-review, we present the current clinical status of aptamers and aptamer-based cancer therapeutics. We also discuss advantages, limitations, and prospects for aptamers as cancer therapeutics. [BMB Reports 2015; 48(4): 234-237]