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Inhibitory Effects of Ganoderma lucidum Spore Oil on Rheumatoid Arthritis in a Collagen-Induced Arthritis Mouse Model

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Abstract
몇몇의 의료 종사자들은 RA를 치료하기 위해 특정 약용 버섯에 초점을 맞추기 시작했습니다. 그 중 Ganoderma lucidum(GL)은 고대 중국 의학에서 RA와 같은 자가 면역 질환을 포함한 염증성 질환을 치료하는 데 사용된 가장 오래된 버섯 중 하나로 알려져 있습니다. 이 버섯의 포자는 면역 조절, 노화 및 암에 특정한 영향을 미칩니다. 그러나 G. lucidum spore(GLS)의 관절염에 대한 효과는 아직 명확하게 밝혀지지 않았습니다. 따라서 콜라겐 유발 류마티스 관절염(CIA) 모델을 활용하여 GLS 오일이 관절염에 주는 효과를 조사하였습니다. GLS오일의 성분 분석에 따르면 GLS 오일에는 10가지 산이 포함되어 있으며 그 중 올레산(52.12%)과 리놀레산(16.77%)이 상당부분을 차지하고 있습니다. GLS 오일을 주입한 CIA 그룹은 일반 CIA 그룹보다 RA에 대해 유의적으로 더 낮은 중증도 점수(p = 0.0384)를 보였습니다. 또한, GLS 오일은 관절에서 CIA에 의해 유발된 연골 변성과 활막에서의 염증을 감소시켰으며 그리고 CIA에 의해 유발된 판누스 형성도 감소시켰습니다. 이와 더불어 면역세포 활성 측면에서도 GLS 오일을 주입한 그룹은 관절에서의 호산구의 증가정도가 유의하게 감소하였고(p = 0.0056), 호중구의 침윤을 확인한 결과 호중구의 침윤정도가 무릎(p = 0.0006)과 발목(p = 0.0023) 모두 GLS 오일을 주입한 그룹에서 유의하게 감소했습니다. 이러한 결과는 GLS 오일이 RA 약물 개발에 유용할 수 있음을 시사하고 이와 관련된 GLS오일의 더 높은 개선효과를 확인하기 위해서는 추가 임상 연구가 필요합니다.|Holistic healthcare practitioners have now started to focus on specific traditional medicinal mushrooms to treat rheumatoid arthritis (RA). Ganoderma lucidum (GL) is one of the oldest mushrooms that have been used in ancient Chinese medicine to treat inflammatory ailments, including autoimmune diseases such as RA. Spores from this mushroom have specific effects on immunomodulation, aging, and cancer. However, the effect of G. lucidum spores (GLS) on arthritis remains unclear. Therefore, we investigated the effects of GLS oil in a collagen-induced rheumatoid arthritis (CIA) model. Metabolomics analysis revealed that GLS oil contains ten acids, of which oleic acid (52.12%) and linoleic acid (16.77%) predominated. The GLS oil-treated CIA mice had a significantly lower clinical score (p = 0.0384) for RA than the control CIA mice. Moreover, GLS oil reduced CIA-induced cartilage degeneration and synovial membrane inflammation in the knee. The GLS oil group showed significantly reduced knee eosinophilia (p = 0.0056). Immunostaining of neutrophils revealed that neutrophils infiltrated the CIA group; however, infiltrated neutrophils were significantly reduced in the GLS oil group in both the knees (p = 0.0006) and ankles (p = 0.0023). GLS oil treatment substantially suppressed LPS- or TNF-–induced IL-6 mRNA expression in primary cultured chondrocytes. IL-6 immunohistochemistry results showed that the protein levels of IL-6 were attenuated in the GLS oil group compared to the CIA group. These findings suggest that GLS oil may be useful for the development of RA drugs. Further clinical research is required to identify significant improvements.
Author(s)
Heo Yunji
Issued Date
2023
Awarded Date
2023-02
Type
Dissertation
URI
https://dcoll.jejunu.ac.kr/common/orgView/000000011092
Alternative Author(s)
허윤지
Affiliation
Graduate School Jeju National University
Department
대학원 동물생명공학전공
Advisor
Son Young-Ok
Table Of Contents
국문 초록 2
LIST OF FIGURES 3
ABSTRACT 4
I. INTRODUCTION 5
II. MATERIALS AND METHODS 8
2.1 Reagents and laboratory supplies 8
2.2 Preparation of GLS oil extracts by supercritical CO2 8
2.3 Analysis of GLS oil by gas chromatography-mass spectrometry (GC-MS) 10
2.4 Experimental RA model generation and von Frey and hot-plate assays 11
2.5 GLS oil injection 11
2.6 Clinical score & paw thickness 11
2.7 Histological examinations 12
2.8 Immune cell infiltration analysis 12
2.9 Cell culture and treatment 13
2.10 Quantitative real-time RT-PCR based analysis 13
2.11 Immunohistochemistry Analysis 14
2.12 Statistical analysis 14
III. RESULTS 15
3.1 Extraction and identification of GLS components 15
3.2 Effects of GLS oil on clinical scores, paw thickness, and pain in a RA model 16
3.3 Effect of GLS oil on cartilage degeneration in mice knees, ankles, and soles in a CIA-induced RA model 18
3.4 GLS oil attenuates immune cell infiltration in a CIA-induced RA model 24
3.5 Effect of GLS oil administration in IL-6 expression in vitro and in vivo 27
IV. DISCUSSTION 29
V. CONCLUSION 32
Ⅵ. REFERNCES 33
Degree
Master
Publisher
Graduate School Jeju National University
Citation
Heo Yunji. (2023). Inhibitory Effects of Ganoderma lucidum Spore Oil on Rheumatoid Arthritis in a Collagen-Induced Arthritis Mouse Model.
Appears in Collections:
Faculty of Biotechnology > Animal Biotechnology
공개 및 라이선스
  • 공개 구분공개
  • 엠바고2023-02-17
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