• Parasites, Hosts and Diseases
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• 제52권3호
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• pp.251-256
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• 2014

A novel recombinant Bacille Calmette-Guerin (rBCG) vaccine co-expressed Eimeria tenella rhomboid and cytokine chicken IL-2 (chIL-2) was constructed, and its efficacy against E. tenella challenge was observed. The rhomboid gene of E. tenella and chIL-2 gene were subcloned into integrative expression vector pMV361, producing vaccines rBCG pMV361-rho and pMV361-rho-IL2. Animal experiment via intranasal and subcutaneous route in chickens was carried out to evaluate the immune efficacy of the vaccines. The results indicated that these rBCG vaccines could obviously alleviate cacal lesions and oocyst output. Intranasal immunization with pMV361-rho and pMV361-rho-IL2 elicited better protective immunity against E. tenella than subcutaneous immunization. Splenocytes from chickens immunized with either rBCG pMV361-rho and pMV361-rho-IL2 had increased $CD4^+$ and $CD8^+$ cell production. Our data indicate recombinant BCG is able to impart partial protection against E. tenella challenge and co-expression of cytokine with antigen was an effective strategy to improve vaccine immunity.

• Pediatric Infection and Vaccine
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• 제9권2호
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• pp.208-214
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• 2002

목 적 : BCG 접종 후 투베르쿨린 반응은 사용한 백신의 종류, 백신의 상태, 투여방법, 접종시 연령, 접종후 검사하기까지의 시간 등의 다양한 요인에 따라 다르게 나타난다. 최근 흉터가 작고 이상반응이 적은 경피용 BCG의 접종이 증가하고 있으나 투베르쿨린 반응 검사 및 예방 효과 등에 대한 자료가 거의 없는 실정이다. 본 연구는 개원가에서 실시한 BCG 및 투베르쿨린 반응을 평가하고 피내 BCG 백신과 경피용 BCG 백신과의 비교, 5TU PPD와 2TU PPD의 비교를 실시하였다. 방 법 : 1997년 2월부터 2001년 6월까지 세군데의 개인 소아과 의원에서 생후 1개월경 BCG 접종을 받은 후 투베르쿨린 반응을 실시한 200명의 소아를 대상으로 의무기록지를 이용한 후향성 조사를 실시하였다. 이 중 151명은 Tokyo 172주로 경피 접종하였고 49명은 피내 접종(28명:copenhagen주, 1명:French 1173P2주, 20명:미상)하였다. 경피 접종한 151명 중 129명(64.5%)은 2TU, 22명(11%)은 5TU PPD를 사용하였고 피내 접종한 49명 중 35명(17.5%)은 2TU, 14명(7%)은 5TU PPD를 사용하였다. 결 과 : 경피용 BCG 접종군에서 2TU PPD와 5TU PPD에 대한 경결의 크기(양성률)는 $9.2{\pm}4.4mm$(86.8%), $12.4{\pm}3.5mm$(95.5%)로 5TU PPD로 검사한 경우가 2TU PPD로 검사한 경우보다 통계적으로 유의하게 더 크게 나타났다(P=0.02). 피내용 BCG 접종군에서 2TU PPD와 5TU PPD에 대한 경결의 크기(양성률)는 각각 $5.7{\pm}5.1mm$(60%), $6.6{\pm}4.8mm$(71.4%)로 두 값 사이에 통계적으로 유의한 차이가 없었다(P=0.569). 2TU PPD에 대한 반응은 경피용 BCG 접종군에서의 경결 크기(양성률)가 $9.2{\pm}4.4mm$(86.8%), 피내용 BCG 접종군에서는 $5.7{\pm}5.1mm$(60%)로 경피용 BCG 접종군에서의 경결크기가 피내용 BCG 접종군에 비해 통계적으로 유의하게 크게 나타났다(P<0.001). 5TU PPD에 대한 반응은 경피용 BCG 접종군에서의 경결크기(양성률)는 $12.4{\pm}3.5mm$(95.5%), 피내용 BCG 접종군에서는 $6.6{\pm}4.8mm$(71.4%)로 역시 경피용 BCG 접종군에서 경결크기가 피내용 BCG 접종군에 비해 통계적으로 유의하게 크게 나타났다(P<0.001). 결 론 : 경피용 BCG(Tokyo 172균주) 접종군의 2TU PPD와 5TU PPD에 대한 반응은 피내용 BCG 접종군에 비해 경결의 크기가 유의하게 컸고, 경피용 BCG 접종군에서 5TU PPD의 경결 크기가 2TU PPD에 비해 유의하게 크게 나타났으므로 경피용 BCG 환아들에게서의 결핵 반응 검사 결과 판독의 새로운 기준이 수립되어야 할 것으로 사료된다.

• Osong Public Health and Research Perspectives
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• 제8권6호
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• pp.389-396
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• 2017

Objectives: To circumvent the limitations of the current golden standard method, colony-forming unit (CFU) assay, for viability of Bacille Calmette-$Gu{\acute{e}}rin$ (BCG) vaccines, we developed a new method to rapidly and accurately determine the potency of BCG vaccines. Methods: Based on flow cytometry (FACS) and fluorescein diacetate (FDA) as the most appropriate fluorescent staining reagent, 17 lots of BCG vaccines for percutaneous administration and 5 lots of BCG vaccines for intradermal administration were analyzed in this study. The percentage of viable cells measured by flow cytometry along with the total number of organisms in BCG vaccines, as determined on a cell counter, was used to quantify the number of viable cells. Results: Pearson correlation coefficients of FACS and CFU assays for percutaneous and intradermal BCG vaccines were 0.6962 and 0.7428, respectively, indicating a high correlation. The coefficient of variation value of the FACS assay was less than 7%, which was 11 times lower than that of the CFU assay. Conclusion: This study contributes to the evaluation of new potency test method for FACS-based determination of viable cells in BCG vaccines. Accordingly, quality control of BCG vaccines can be significantly improved.

• Bulletin of the Korean Chemical Society
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• 제35권3호
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• pp.933-937
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• 2014

A derivative of Mycobacterium bovis Bacillus Calmette-Guerin (BCG) has been used for the preparation of tuberculosis vaccines. To establish a Korean tuberculosis vaccine derived from BCG-Pasteur $1173P_2$, genome sequencing of a BCG-Korea strain was completed by Joung and coworkers. A comparison analysis of the genome sequences of the BCG-Pasteur $1173P_2$ and BCG-Korea strains showed marginal increases in the total genome length (~0.05%) and the number of genes (~4%) in the BCG-Korea genome. However, how the genomic changes affect the BCG-Korea protein expression levels remains unknown. Here, we provide evidence of the proteomic alterations in the BCG-Korea strain by using a SWATH-based mass spectrometric approach (Sequential Window Acquisition of all THeoretical mass spectra). Twenty BCG proteins were selected by top-rank identification in the BCG proteome analysis and the proteins were quantified by the SWATH method. Thirteen of 20 proteins showing significant changes were enough to discriminate between the two BCG proteomes. The SWATH method is very straightforward and provides a promising approach owing to its strong reliability and reproducibility during the proteomic analysis.

• Pediatric Infection and Vaccine
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• 제21권2호
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• pp.139-143
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• 2014

BCG 림프절염은 BCG 접종 후에 생기는 가장 흔한 합병증이다. BCG 림프절염은 대부분 6개월 미만의 영아에서 발생하며 접종한 부위와 같은 쪽 겨드랑이 림프절을 침범하는 경우가 많다. 본 저자들은 생후 15일에 Tokyo주 BCG 백신을 접종한 22개월 남자아이에서 왼쪽 쇄골상부 림프절 부위에 발생한 BCG 림프절염을 경험하여 이에 대해 보고한다. 우리는 림프절 흡인을 시행하여 얻은 검체에서 실시간 중합효소 연쇄반응과 region of difference (RD)에 대한 다중 중합효소연쇄반응으로 M. bovis Tokyo주에 의한 감염을 확인하였고 반복적인 흡인을 통해 치료하였다.

• Journal of Microbiology and Biotechnology
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• 제28권6호
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• pp.1022-1029
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• 2018

Tuberculosis (TB) remains a serious health issue around the word. Adenovirus (Ad)-based vaccine and modified vaccinia virus Ankara (MVA)-based vaccine have emerged as two of the most promising immunization candidates over the past few years. However, the performance of the homologous and heterologous prime-boost immunization regimens of these two viral vector-based vaccines remains unclear. In the present study, we constructed recombinant Ad and MVA expressing an Ag85B-TB10.4 fusion protein (AdH4 and MVAH4) and evaluated the impact of their different immunization regimens on the humoral and cellular immune responses. We found that the viral vector-based vaccines could generate significantly higher levels of antigen-specific antibodies, $IFN-{\gamma}$-producing splenocytes, $CD69^+CD8^+$ T cells, and $IFN-{\gamma}$ secretion when compared with bacillus Calmette-$Gu{\acute{e}}rin$ (BCG) in a mouse model. AdH4-containing immunization regimens (AdH4-AdH4, AdH4-MVAH4, and MVAH4-AdH4) induced significantly stronger antibody responses, much more $IFN-{\gamma}$-producing splenocytes and $CD69^+CD8^+$ T cells, and higher levels of $IFN-{\gamma}$ secretion when compared with the MVAH4-MVAH4 immunization regimen. The number of $IFN-{\gamma}$-producing splenocytes sensitive to $CD8^+$ T-cell restricted peptides of Ag85B (9-1p and 9-2p) and Th1-related cytokines ($IFN-{\gamma}$ and $TNF-{\alpha}$) in the AdH4-MVAH4 heterologous prime-boost regimen immunization group was significantly higher than that in the other viral vector-based vaccine- and BCG-immunized groups, respectively. These results indicate that an immunization regimen involving AdH4 may have a higher capacity to induce humoral and cellular immune responses against TB in mice than that by regimens containing BCG or MVAH4 alone, and the AdH4-MVAH4 prime-boost regimen may generate an ideal protective effect.

• Journal of Yeungnam Medical Science
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• 제40권4호
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• pp.430-434
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• 2023

Intravesical bacillus Calmette-Guérin (BCG) instillation is an adjuvant treatment for non-muscle-invasive urinary bladder cancer. Although most complications associated with BCG immunotherapy are mild and self-limiting, rare albeit serious complications have been reported. Only a few cases of BCG-related rhabdomyolysis have been reported. In this study, we present the case of a 72-year-old woman who developed severe weakness and hyperCKemia following intravesical BCG instillation. A muscle biopsy was performed, and a diagnosis of drug-induced myopathy was made.

• Pediatric Infection and Vaccine
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• 제5권1호
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• pp.139-142
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• 1998

BCG osteomyelitis is rare comlication and the incidence rate has been estimated to be 1/milion vaccinated neonate and infants. BCG osteomyelitis is also reported as a complication of intravesical BCG treatment for bladder carcinoma. We had experienced a 14 months old infant who presented swelling, tenderness and redness on left upper arm suspicious due to BCG vaccination. The MRI finding showed $2{\times}4{\times}4cm$ subcutaneous abscess with cortical defect on proximal humerus and axillary lymph adenopathy. The histologic finding showed diffuse caseous necrosis and Langhans type giant cell. We report A case of BCG osteomyelitis.

• Pediatric Infection and Vaccine
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• 제15권1호
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• pp.1-4
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• 2008

Immunizations are among the most cost-effective and widely used public health interventions. This is a report a revision of recommendation of immunization for children by Korean Pediatric Society. Immunization. Vaccines were divided into 4 groups. 1) Vaccines that are recommended to all infants and children (BCG, hepatitis B vaccine, DTaP, Td, Polio vaccine, Japanese encephalitis vaccine, MMR, varicella vaccine, influenza vaccine [6-23 months of age], H. influenzae type b vaccine), 2) those that can be administered to all infants and children, but decision of administration is made by parents (pneumococcal conjugate vaccine, hepatitis A vaccine, influenza vaccine [healthy children ${\geq}24$ months of age], rotavirus vaccine, human papilloma virus vaccine), 3) those that should be given to high risk group (pneumococcal polysaccharide vaccine [high risk patients ${\geq}24$ months of age], influenza vaccine [high risk patients ${\geq}24$ months of age], typhoid vaccine), and 4) those administered for control of outbreaks or prevention of emerging infectious diseases. Immunization schedule recommended by Korean Pediatric Society in 2008 is presented.

• Clinical and Experimental Pediatrics
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• 제49권1호
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• pp.14-17
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• 2006

Infants who are born prematurely or with low birth weight should be immunized at the same postnatal chronologic age. They should receive BCG, DTaP, IPV vaccines according to the same recommended schedule as full term infants. Hepatitis B vaccine schedule is modified when hepatitis B vaccine is administered a infant with birth weight less than 2,000 g. The recommended standard dose of each vaccine should be administered. Proportion of children experiencing vaccine-related adverse events dose not differ between full-term and preterm infants. Immunization with routinely recommended childhood vaccines is safe for preterm and low birth weight infants.