3 research outputs found

    ์ปดํ“จํ„ฐ ์‹œ๋ฎฌ๋ ˆ์ด์…˜์— ์˜ํ•œ Terpene๋ฅ˜์˜ 5ฮฑ-Reductase Type 2์— ๋Œ€ํ•œ ๊ฒฝ์Ÿ์  ์ €ํ•ด๋Šฅ ์˜ˆ์ธก

    Get PDF
    ํ•™์œ„๋…ผ๋ฌธ (์„์‚ฌ)-- ์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› : ์ƒํ™œ๊ณผํ•™๋Œ€ํ•™ ์‹ํ’ˆ์˜์–‘ํ•™๊ณผ, 2019. 2. ํ™ฉ๊ธˆํƒ .5ฮฑ-Reductase type 2 (5ฮฑR2)๋Š” ๋ชจ๋‚ญ์—์„œ testosterone์ด dihydrotestosterone (DHT)๋กœ ์ „ํ™˜๋˜๋Š” ๋ฐ˜์‘์˜ ์ด‰๋งค ์—ญํ• ์„ ํ•œ๋‹ค. ์ฒด๋‚ด์— DHT๊ฐ€ ์ฆ๊ฐ€ํ•˜๋ฉด ๋‚จ์„ฑํ˜• ํƒˆ๋ชจ๊ฐ€ ์œ ๋ฐœ๋˜๋Š” ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ๋”ฐ๋ผ์„œ DHT์˜ ์ƒ์„ฑ๋Ÿ‰์„ ์กฐ์ ˆํ•˜๋Š” ํšจ์†Œ์ธ 5ฮฑR2์˜ ํ™œ์„ฑ์„ ์ €ํ•ดํ•จ์œผ๋กœ์จ ํƒˆ๋ชจ์˜ ์ง„ํ–‰์„ ์ง€์—ฐ์‹œํ‚ฌ ์ˆ˜ ์žˆ๋‹ค. ์ฃผ๋กœ ์‚ฌ์šฉ๋˜๊ณ  ์žˆ๋Š” ํƒˆ๋ชจ ์น˜๋ฃŒ์ œ์˜ ์„ฑ๋ถ„์œผ๋กœ๋Š” finasteride์™€ dutasteride๊ฐ€ ์žˆ์œผ๋ฉฐ, ๋‘ ๋ฌผ์งˆ ๋ชจ๋‘ 5ฮฑR2์— ๋Œ€ํ•œ ๊ฒฝ์Ÿ์  ์ €ํ•ด๋Šฅ์„ ๊ฐ–๋Š” ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์ ธ ์žˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ด ๋ฌผ์งˆ๋“ค์„ ์žฅ๊ธฐ ๋ณต์šฉ ์‹œ ์„ฑ๊ธฐ๋Šฅ ๊ด€๋ จ ๋ถ€์ž‘์šฉ์ด ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ๋ณด๊ณ ๋œ ๋ฐ” ์žˆ๋‹ค. ๋˜ํ•œ, ์ฒœ์—ฐ๋ฌผ์„ ์ด์šฉํ•œ ๋ชจ๋ฐœ ์„ฑ์žฅ ํšจ๋Šฅ์— ๊ด€ํ•œ ์—ฐ๊ตฌ๋„ ์ด๋ฃจ์–ด์ง€๊ณ  ์žˆ๋‹ค. ํ˜„์žฌ๊นŒ์ง€ ํ•œ๋ จ์ดˆ, ์„ฌ์˜ค๊ฐˆํ”ผ๋‚˜๋ฌด ์žŽ, ํ™์‚ผ, ํ† ๋งˆํ†  ๋“ฑ์—์„œ ์–ป์€ ์ถ”์ถœ๋ฌผ๋“ค์˜ ๋ชจ๋ฐœ ์„ฑ์žฅ ํšจ๋Šฅ์ด ์žˆ๋‹ค๊ณ  ๋ณด๊ณ ๋˜์–ด ์žˆ๋Š”๋ฐ, ์ด๋Ÿฌํ•œ ์ถ”์ถœ๋ฌผ๋“ค์€ ๋ชจ๋‘ terpene๋ฅ˜ ๋ฌผ์งˆ๋“ค์„ ํ•จ์œ ํ•œ๋‹ค. ๋”ฐ๋ผ์„œ ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ์ปดํ“จํ„ฐ ์‹œ๋ฎฌ๋ ˆ์ด์…˜์ธ ๋ถ„์ž๋„ํ‚น์„ ์ด์šฉํ•˜์—ฌ ์–ด๋–ค terpene๋ฅ˜ ๋ฌผ์งˆ์ด 5ฮฑR2์˜ ๋ณด์กฐ์ธ์ž์ธ NADPH์™€ ์ด ํšจ์†Œ์˜ ๊ธฐ์งˆ์ธ testosterone์— ๋Œ€ํ•œ ๊ฒฝ์Ÿ์  ์ €ํ•ด๋Šฅ์„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ๋Š”์ง€๋ฅผ ์˜ˆ์ธกํ•˜๊ณ ์ž ํ•˜์˜€๋‹ค. ๋ถ„์ž๋„ํ‚น์„ ์ˆ˜ํ–‰ํ•˜๊ธฐ์— ์•ž์„œ, I-TASSER ์›น์„œ๋ฒ„๋ฅผ ์ด์šฉํ•˜์—ฌ 5ฮฑR2์˜ ์ž…์ฒด๊ตฌ์กฐ๋ฅผ ์˜ˆ์ธกํ•˜์˜€๋‹ค. ์ดํ›„ ์˜ˆ์ธก ๊ตฌ์กฐ ๋ชจ๋ธ์„ ๊ธฐ๋ฐ˜์œผ๋กœ ๋ถ„์ž๋„ํ‚นํ•˜๋Š” ๊ณผ์ •์˜ ์‹ ๋ขฐ์„ฑ์„ ํ‰๊ฐ€ํ•˜๊ธฐ ์œ„ํ•ด receiver operating characteristic curve ๋ถ„์„์„ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. NuBBE ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋กœ๋ถ€ํ„ฐ ์–ป์€ 577๊ฐœ terpene๋ฅ˜(monoterpenoids, iridoids, sesquiterpenoids, diterpenoids, steroids, triterpenoids)๋ฅผ AutoDock Vina๋ฅผ ์ด์šฉํ•˜์—ฌ ์˜ˆ์ธก๋ชจ๋ธ์˜ NADPH์™€ testosterone์˜ ๊ฒฐํ•ฉ๋ถ€์œ„์— ๋„ํ‚นํ•˜์˜€๋‹ค. ๋˜ํ•œ, ๋น„๊ต๋ฌผ์งˆ๋กœ์„œ finasteride์™€ dutasteride๋„ ์˜ˆ์ธก ๊ตฌ์กฐ ๋ชจ๋ธ์— ๋„ํ‚นํ•˜์˜€๋‹ค. ์ „์ฒด 577๊ฐœ terpene๋ฅ˜ ๋ฌผ์งˆ๋“ค ์ค‘, 18๊ฐœ์˜ triterpenoid๋ฅ˜ ๋ฌผ์งˆ๋“ค์ด NADPH์˜ ๊ฒฐํ•ฉ์—๋„ˆ์ง€๋ณด๋‹ค ๋” ๋‚ฎ์€ ๊ฒฐํ•ฉ์—๋„ˆ์ง€๋ฅผ ๊ฐ€์งˆ ๊ฒƒ์œผ๋กœ ์˜ˆ์ธก๋˜์—ˆ๋‹ค. ๋˜ํ•œ ์ „์ฒด 577๊ฐœ terpene๋ฅ˜ ์ค‘ 247๊ฐœ ๋ฌผ์งˆ์ด testosterone์˜ ๊ฒฐํ•ฉ์—๋„ˆ์ง€๋ณด๋‹ค ๋” ๋‚ฎ์€ ๊ฒฐํ•ฉ์—๋„ˆ์ง€๋ฅผ ๊ฐ€์งˆ ๊ฒƒ์œผ๋กœ ์˜ˆ์ธก๋˜์—ˆ๋‹ค. ์ด ์ค‘์—์„œ๋„ 3๊ฐœ์˜ triterpenoid๋ฅ˜๊ฐ€ ํƒˆ๋ชจ์น˜๋ฃŒ์ œ์˜ ์„ฑ๋ถ„์ธ finasteride์™€ dutasteride์˜ ๊ฒฐํ•ฉ์—๋„ˆ์ง€๋ณด๋‹ค๋„ ๋” ๋‚ฎ์€ ๊ฒฐํ•ฉ์—๋„ˆ์ง€๋ฅผ ๊ฐ€์งˆ ๊ฒƒ์œผ๋กœ ์˜ˆ์ธก๋˜์—ˆ๋‹ค. ๋ณธ ์—ฐ๊ตฌ์—์„œ๋Š” ๋ถ„์ž๋„ํ‚น์„ ํ†ตํ•ด terpene๋ฅ˜ ๋‚ด ํ˜น์€ terpene๋ฅ˜ ๊ฐ„์˜ 5ฮฑR2์— ๋Œ€ํ•œ ๊ฒฝ์Ÿ์  ์ €ํ•ด๋Šฅ ์ฐจ์ด๋ฅผ ์˜ˆ์ธก ๋ฐ ๋น„๊ตํ•˜์˜€๋‹ค. Steroid ring ํ˜น์€ pentacyclic ring์„ ๊ธฐ๋ณธ ๊ณจ๊ฒฉ์œผ๋กœ ๊ฐ€์ง€๋Š” triterpenoid๋ฅ˜๊ฐ€ ๋‹ค๋ฅธ terpene๋ฅ˜๋ณด๋‹ค 5ฮฑR2์— ๋Œ€ํ•œ ๊ฒฝ์Ÿ์  ์ €ํ•ด๋Šฅ์ด ๋†’์„ ๊ฒƒ์œผ๋กœ ์˜ˆ์ธก๋˜์—ˆ๋‹ค.5ฮฑ-Reductase type 2 (5ฮฑR2) catalyzes the reduction of testosterone to dihydrotestosterone (DHT) in scalp hair follicles. Increased intracellular DHT is responsible for development of androgenetic alopecia (AGA), or male-pattern hair loss. Thus, inhibition of 5ฮฑR2 activity is important to retard progression of AGA. Terpenes, metabolites produced by diverse plant sources, have been suggested to have enhancing effects on hair growth. The aims of the present study were to predict 3D structure of 5ฮฑR2, which has not been yet reported, and to determine which terpene could have competitive inhibitory activity against NADPH or testosterone binding site of 5ฮฑR2 by in silico approaches. Prior to performing molecular docking of terpenes to 5ฮฑR2, 3D structure of 5ฮฑR2 was predicted by I-TASSER server. Discrimination ability of a docking protocol was validated by receiver operating characteristic curve analysis. By molecular docking of 577 terpenes from NuBBE database to the predicted 3D structure of 5ฮฑR2 using AutoDock Vina, 18 triterpenoids were predicted to have lower binding energies than NADPH against 5ฮฑR2. 247 out of 577 terpenes were predicted to have lower binding energies than testosterone against 5ฮฑR2. Among these 247 terpenes, 3 triterpenoids were predicted to have lower binding energies than finasteride and dutasteride, well-known competitive inhibitors of 5ฮฑR2. In conclusion, triterpenoids having a steroid ring or pentacyclic ring in backbone were predicted to have the highest competitive inhibitory activities than monoterpenoids, iridoids, sesquiterpenoids, diterpenoids, and steroids against 5ฮฑR2.INTRODUCTION 1 METHODS 3 1. Prediction of 3D Structure of 5ฮฑR2 3 2. Construction of a Binary Complex of the Apo-5ฮฑR2 with NADPH 4 3. Structural Validation of the Apo-5ฮฑR2 4 4. Validation of a Docking Protocol by Receiver Operating Characteristic (ROC) Curve Analysis 5 5. Preparation of Enzyme Models and Ligands 7 6. Molecular Docking-Based VS of Competitive Inhibitory Activities of Terpenes against 5ฮฑR2 7 RESULTS AND DISCUSSION 10 1. Prediction of 3D Structure of 5ฮฑR2 10 2. Construction of a Binary Complex of the Apo-5ฮฑR2 with NADPH 10 3. Structural Validation of the Apo-5ฮฑR2 12 4. Validation of the Docking Protocol by ROC Curve Analysis 16 5. Molecular Docking-Based VS of Competitive Inhibitory Activities of Terpenes against 5ฮฑR2 18 CONCLUSION 26 REFERENCES 27 ๊ตญ๋ฌธ์ดˆ๋ก 34Maste

    ์•„์‚ฐ์‹œ ์›๋„์‹ฌ ํ™œ์„ฑํ™”๋ฅผ ์œ„ํ•œ ๋„์‹œ์žฌ์ƒ๋ฐฉ์•ˆ ๋ชจ์ƒ‰ ์›Œํฌ์ˆ(๊น€๋ฅœํฌ, ์ž„์ค€ํ™)

    No full text
    O ์•„์‚ฐ์‹œ ์›๋„์‹ฌ ํ™œ์„ฑํ™”๋ฅผ ์œ„ํ•œ ๋„์‹œ์žฌ์ƒ๋ฐฉ์•ˆ ๋ชจ์ƒ‰ ์›Œํฌ์ˆ O ๋ชฉ ์  - ์•„์‚ฐ์‹œ์™€ ์ •์ฑ…์—ฐ๊ตฌ๊ธฐ๊ด€ ๊ฐ„์˜ ํ˜‘๋ ฅ์„ ํ†ตํ•œ ์•„์‚ฐ์‹œ ์›๋„์‹ฌ ํ™œ์„ฑํ™”๋ฅผ ์œ„ํ•œ ๋„์‹œ์žฌ์ƒ ๋ฐฉํ–ฅ ๋ชจ์ƒ‰ O ๊ฐœ ์š” - ์ผ์‹œ : 2016๋…„ 6์›” 24์ผ(๊ธˆ) 14:00 - ์žฅ์†Œ : ์˜จ์–‘ํ˜ธํ…” ์‚ฌํŒŒ์ด์–ด(2์ธต) - ์ฃผ์ตœ/์ฃผ๊ด€ : ์ถฉ๋‚จ์—ฐ๊ตฌ์›, ์•„์‚ฐ์‹œ, ํ† ์ง€์ฃผํƒ์—ฐ๊ตฌ์› O ์ฃผ์ œ๋ฐœํ‘œ - ์ œ1์ฃผ์ œ : ๋„์‹œํ™œ๋ ฅ์ฆ์ง„์ง€์—ญ ๊ฐœ๋ฐœ์‚ฌ์—… ์‚ฌ๋ก€ ๋ฐ ์ •์ฑ…์ œ์–ธ - ๊น€๋ฅœํฌ ๋ฐ•์‚ฌ(ํ† ์ง€์ฃผํƒ์—ฐ๊ตฌ์›) - ์ œ2์ฃผ์ œ : ์•„์‚ฐ์‹œ ๋นˆ์ง‘ ์‹คํƒœ์™€ ํ™œ์šฉ๋ฐฉ์•ˆ - ์ž„์ค€ํ™ ์—ฐ๊ตฌ์œ„์›(์ถฉ๋‚จ์—ฐ๊ตฌ์›) O ํ† ๋ก  (์ขŒ์žฅ_๊ฐ•ํ˜„์ˆ˜ ์ถฉ๋‚จ์—ฐ๊ตฌ์›์žฅ) - ๊น€์ฃผ์ง„ ์‹ค์žฅ(ํ† ์ง€์ฃผํƒ์—ฐ๊ตฌ์›) - ๋ฐ•์ฒ ํฌ ์—ฐ๊ตฌ์œ„์›(์ถฉ๋‚จ์—ฐ๊ตฌ์›) - ๋ฐฑ๊ธฐ์˜ ๊ต์ˆ˜(์˜๋™๋Œ€ํ•™๊ต) - ์œค์ธ์„ญ ๊ณผ์žฅ(์•„์‚ฐ์‹œ ๊ฐœ๋ฐœ์ •์ฑ…๊ณผ) - ์œคํ‰ํ˜ธ ๊ธฐ์ž(๋Œ€์ „์ผ๋ณด) - ์กฐ์„ ํฌ ๊ฐ„์‚ฌ(ํ’€๋ฟŒ๋ฆฌ์—ฌ์„ฑ์—ฐ๋Œ€)[์ œ1๋ฐœํ‘œ] ยท ๋„์‹œํ™œ๋ ฅ์ฆ์ง„์ง€์—ญ ๊ฐœ๋ฐœ์‚ฌ์—… ์‚ฌ๋ก€ ๋ฐ ์ •์ฑ…์ œ์–ธ - ๊น€๋ฅœํฌ ๋ฐ•์‚ฌ(ํ† ์ง€์ฃผํƒ์—ฐ๊ตฌ์›) [์ œ2๋ฐœํ‘œ] ยท ์•„์‚ฐ์‹œ ๋นˆ์ง‘ ์‹คํƒœ์™€ ํ™œ์šฉ๋ฐฉ์•ˆ - ์ž„์ค€ํ™ ๋ฐ•์‚ฌ(์ถฉ๋‚จ์—ฐ๊ตฌ์›
    corecore