아토피 견에서 분리한 M. pachydermatis 추출 단백질에 대한 IgG 체액성 면역 반응의 연구 IgG Humoral Immune Response to Extract Proteins of Malassezia Pachydermatis Isolated from a Dog with Atopic Dermatitis (Ad)원문보기
M. pachydermatis는 개에서의 피부 정상 균 종으로서, 과잉 증식되는 가장 흔한 질병 중의 하나가 아토피성 피부염이다. 이 연구의 목적은 개의 아토피성 피부염에서 M. pachydermatis 추출 단백질에 대한 IgG를 이용한 체액성 면역 반응을 알아보는 것이다. M. pachydermatis의 전기 영동과 개의 혈청을 이용한 Western immunoblotting을 이용해 M. pachydermatis의 알러젠을 밝히고 아토피 견과 비 아토피 견에서의 각각의 면역 반응을 비교하였다 결과는 아토피 견의 혈청에서 18, 21, 26, 32, 34, 38, 40, 42, 46, 58, 64, 75, 85, 그리고 120 kDa의 단백질의 반응이 발견된 것에 반해, 비 아토피 견에서는 50 kD을 제외한 다른 단백질의 반응은 발견되지 않았다. 이 연구의 결과로 M. pachydermatis 피부염을 지닌 개의 아토피성 피부염은 IgG의 체액성 면역 반응을 유발하고, 이 면역 반응은 개의 아토피성 피부염의 발병 기전에 중요한 역할을 한다는 것을 알 수 있다. 그러나 개의 아토피성 피부염에서의 M. pachydermatis에 대한 체액성 면역 반응의 역할을 밝히기 위해서는 더 많은 연구가 필요하다.
M. pachydermatis는 개에서의 피부 정상 균 종으로서, 과잉 증식되는 가장 흔한 질병 중의 하나가 아토피성 피부염이다. 이 연구의 목적은 개의 아토피성 피부염에서 M. pachydermatis 추출 단백질에 대한 IgG를 이용한 체액성 면역 반응을 알아보는 것이다. M. pachydermatis의 전기 영동과 개의 혈청을 이용한 Western immunoblotting을 이용해 M. pachydermatis의 알러젠을 밝히고 아토피 견과 비 아토피 견에서의 각각의 면역 반응을 비교하였다 결과는 아토피 견의 혈청에서 18, 21, 26, 32, 34, 38, 40, 42, 46, 58, 64, 75, 85, 그리고 120 kDa의 단백질의 반응이 발견된 것에 반해, 비 아토피 견에서는 50 kD을 제외한 다른 단백질의 반응은 발견되지 않았다. 이 연구의 결과로 M. pachydermatis 피부염을 지닌 개의 아토피성 피부염은 IgG의 체액성 면역 반응을 유발하고, 이 면역 반응은 개의 아토피성 피부염의 발병 기전에 중요한 역할을 한다는 것을 알 수 있다. 그러나 개의 아토피성 피부염에서의 M. pachydermatis에 대한 체액성 면역 반응의 역할을 밝히기 위해서는 더 많은 연구가 필요하다.
Malassezia pachydermatis (M. pachydermatis) is a component of the normal cutaneous flora of the dog and atopic dermatitis (AD) is one of the most common diseases associated with Malassezia overgrowth in dogs. The purpose of this study was to investigate the humoral response (IgG) to extracts of M. p...
Malassezia pachydermatis (M. pachydermatis) is a component of the normal cutaneous flora of the dog and atopic dermatitis (AD) is one of the most common diseases associated with Malassezia overgrowth in dogs. The purpose of this study was to investigate the humoral response (IgG) to extracts of M. pachydermatis of in a dog with AD. We used Western immunoblotting to identify allergens of M. pachydermatis. Gel electrophoresis of extracts proteins and immunoblotting of sera samples in both an atopic dog and a non-atopic dog were compared. Proteins of 18, 21, 26, 32, 34, 38, 40, 42, 46, 58, 64, 75, 85, and 120 kDa were observed in a serum of atopic dog. However, when serum of a non-atopic dog was used, protein bands were not identified except binding in 50 kDa protein. The results of this study indicate that atopic dogs with M. pachydermatis dermatitis may induce IgG response and also suggest that humoral response to M. pachydermatis could be important in pathogenesis of AD in dogs. However, further studies are required to identify roles of humoral response to M. pachydermatis in canine AD.
Malassezia pachydermatis (M. pachydermatis) is a component of the normal cutaneous flora of the dog and atopic dermatitis (AD) is one of the most common diseases associated with Malassezia overgrowth in dogs. The purpose of this study was to investigate the humoral response (IgG) to extracts of M. pachydermatis of in a dog with AD. We used Western immunoblotting to identify allergens of M. pachydermatis. Gel electrophoresis of extracts proteins and immunoblotting of sera samples in both an atopic dog and a non-atopic dog were compared. Proteins of 18, 21, 26, 32, 34, 38, 40, 42, 46, 58, 64, 75, 85, and 120 kDa were observed in a serum of atopic dog. However, when serum of a non-atopic dog was used, protein bands were not identified except binding in 50 kDa protein. The results of this study indicate that atopic dogs with M. pachydermatis dermatitis may induce IgG response and also suggest that humoral response to M. pachydermatis could be important in pathogenesis of AD in dogs. However, further studies are required to identify roles of humoral response to M. pachydermatis in canine AD.
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문제 정의
Therefore to identify correct immune responses to Malassezia in canine atopy, it is necessary to investigate IgG reactivity. The purpose of this study was to identify the humoral immune response (IgG) to extract proteins of M. pachydermatis in a dog with AD.
This study demonstrates that IgG-mediated humoral immune response was elicited following M. pachydermatis infection of a dog with AD. And that humoral response other than IgE-mediated could be crucial in the pathogenesis of canine AD with M.
제안 방법
In this study, M. pachydermatis protein extracts were electrophoresed by SDS-PAGE on a 10% separating polyacrylamide gel and stained with Coomassie Brilliant Blue R-250 (Fig 4). The immune reactivity of M.
Other causes of pruritic skin disease were excluded. Intradermal skin te마 (IDST) was performed with 40 allergens using 0.05 mL of each allergen extract on the lateral flank after the dog was sedated with medetomidine (20 ug4cg, Dormitor®, Pfizer Animal Health, USA) intravenously and was clipped. Histamine (1/100,000 w/v) and diluents consisting of buffered saline also injected as positive and negative controls, respectively.
이론/모형
Gel electrophoresis was performed according to the method of Laemmli (16) using a mini-protean 3 system (BioRad, USA) in a discontinuous buffer system containing 0.025 M Tris (BIO-RAD, USA), 0.192 M Glycine (BIO-RAD, USA) and 0.1% sodium dodecyl sulphate (pH 8.3, BIO-RAD, USA). The gel comprised 10% separating polyacrylamide gel and 4% stacking gel.
성능/효과
IDST (Fig 2). The causative allergens were Rhizopus mix, House dust mixture, Silk, House dust mites (Dermatophagoides farinae, Dermatophagoides pteronyssinus) (Table 1).
후속연구
pachydermatis. Further studies are required to identify the exact role of IgG in AD with M. pachydermatis infection.
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