KR20190028281A - 지방줄기세포 유래의 엑소좀을 유효성분으로 포함하는 조성물의 신장 기능 개선 용도 - Google Patents
지방줄기세포 유래의 엑소좀을 유효성분으로 포함하는 조성물의 신장 기능 개선 용도 Download PDFInfo
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- KR20190028281A KR20190028281A KR1020180095836A KR20180095836A KR20190028281A KR 20190028281 A KR20190028281 A KR 20190028281A KR 1020180095836 A KR1020180095836 A KR 1020180095836A KR 20180095836 A KR20180095836 A KR 20180095836A KR 20190028281 A KR20190028281 A KR 20190028281A
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- exosome
- renal
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- exosomes
- renal function
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Abstract
Description
도 2는 본 발명의 일 구체예에 따라 지방줄기세포 배양액으로부터 엑소좀을 제조하는 단계(step)별로 용액 내에 포함되어 있는 단백질의 총량 비율(Relative amount of protein)을 측정한 결과를 나타낸다. 각 단계별 단백질 총량의 비율은 지방줄기세포 배양액 전체에 대한 단백질 총량의 상대적 비율로 나타내었다. 실험 결과는 2개의 서로 다른 배치에서 얻어진 결과를 각각 도시하였다.
도 3은 본 발명의 일 구체예에 따라 얻어진 엑소좀의 생산성(productivity)과 순도(purity)를 측정한 결과를 도시한 것이다. 엑소좀의 생산성은 "지방줄기세포 배양액(CM) 단위 mL 당 얻어진 엑소좀의 입자수"로 계산하였고, 엑소좀의 순도는 "최종 분획물에 포함되어 있는 단백질 단위 μg 당 엑소좀의 입자수"로 계산하였다. 실험 결과는 5개의 서로 다른 배치(batch)에서 얻어진 결과를 도시하였다.
도 4는 본 발명의 일 구체예에 따라 얻어진 엑소좀의 물리적 특성 분석 결과를 도시한 것이다. "도 4A"는 TRPS(tunable resistive pulse sensing) 분석에 의한 입자 크기 분포와 입자수를 나타낸다. "도 4B"는 NTA(nanoparticle tracking analysis) 분석에 의한 입자 크기 분포와 입자수를 나타낸다. "도 4C"는 TEM(transmitted electron microscopy) 분석에 의한 입자 이미지를 배율에 따라 도시하였다. "도 4D"는 본 발명의 일 구체예에 따라 얻어진 엑소좀의 웨스턴 블랏 결과를 나타낸다. "도 4E"는 본 발명의 일 구체예에 따라 얻어진 엑소좀에 대한 마커 분석에 있어서 CD63 및 CD81에 대한 유세포분석 결과를 나타낸다.
도 5는 트레할로오스 첨가에 따라 입자크기 분포가 균일하고 순도가 높은 엑소좀이 수득되는 것을 보여주는 입자 크기 분포에 관한 NTA 분석 결과를 도시한다. 첨가된 트레할로오스의 양이 증가함에 따라 단일한 피크를 갖는 입자 크기 분포 결과를 얻을 수 있다.
도 6은 본 발명의 일 구체예에 따른 엑소좀의 제조과정에서 트레할로오스 첨가 여부에 따른 입자 크기 분포를 나타내는 NTA 분석 결과를 도시한다. "도 6A"는 제조 과정 전과정에서 트레할로오스를 첨가한 경우, "도 6B"는 세포 배양액을 동결 보관하였다가 해동한 후 트레할로오스를 첨가한 경우, "도 6C"는 트레할로오스를 첨가하지 않고 제조한 결과를 나타낸다. "도 6D"에는 도 6A 내지 도 6C 방법에 의하여 분리한 엑소좀의 상대적인 생산성(Relative productivity)과 상대 농도(Relative concentration)를 비교한 결과를 도시하였다. "도 6E"에는 도 6A 내지 도 6C 방법에 의하여 분리한 엑소좀의 평균 입자크기(Mean size)를 도시하였다.
도 7은 인체 피부섬유아세포인 HS68 세포에 본 발명의 일 구체예에 따른 엑소좀을 처리한 후 세포 독성이 없음을 확인한 결과를 도시한다.
도 8은 RAW 264.7 세포에 대해 LPS와 함께 본 발명의 엑소좀을 처리한 경우 LPS에 의해 유도되는 TNF-α 및 IL-6의 mRNA 발현량이 감소한 것을 확인한 리얼타임 PCR 결과를 도시한 그래프이다.
도 9는 시스플라틴에 의해 급성신장손상이 유발된 동물 모델(급성신장손상 동물모델 1)에 본 발명의 일 구체예에 따른 엑소좀을 처리한 결과, 급성신장손상에 의한 개체 사망률이 감소한 것을 나타내는 그래프이다.
도 10은 급성신장손상 동물모델 1에 본 발명의 일 구체예에 따른 엑소좀을 처리한 결과, 급성신장손상에 의해 감소된 체중이 음성 대조군에 비해 빠르게 회복되는 것을 나타내는 그래프이다.
도 11은 급성신장손상 동물모델 1에 본 발명의 일 구체예에 따른 엑소좀을 처리한 결과, 랫트 혈액 내의 혈액요소질소(BUN)와 크레아티닌(CRE) 수준이 음성 대조군에 비해 감소한 결과를 도시한 그래프이다.
도 12는 시스플라틴에 의해 급성신장손상이 유발된 동물 모델(급성신장손상 동물모델 2)에 본 발명의 일 구체예에 따른 엑소좀을 처리한 결과, 엑소좀의 용량 의존적으로, 급성신장손상에 의한 개체 사망률이 감소한 것을 나타내는 그래프이다.
도 13은 급성신장손상 동물모델 2에 본 발명의 일 구체예에 따른 엑소좀을 처리한 결과, 엑소좀의 용량 의존적으로, 급성신장손상에 의해 감소된 체중이 음성 대조군에 비해 빠르게 회복되는 것을 나타내는 그래프이다.
도 14는 급성신장손상 동물모델 2에 본 발명의 일 구체예에 따른 엑소좀을 처리한 결과, 엑소좀의 용량 의존적으로 랫트 혈액 내의 혈액요소질소(BUN)와 크레아티닌(CRE) 수준이 음성 대조군에 비해 감소한 결과를 도시한 그래프이다.
도 15는 시스플라틴이 급성신부전을 일으키는 다양한 경로와, 이에 관여하는 물질 및 증상을 설명하는 다이어그램이다.
| 유전자 | 서열 | |
| 정방향 프라이머 (5' → 3') | 역방향 프라이머 (5' → 3') | |
| TNF-α | TCT CAT CAG TTC TAT GGC CCA GAC (서열번호 1) | GGC ACC ACT AGT TGG TTG TCT TTG (서열번호 2) |
| IL-6 | GCC AGA GTC CTT CAG AGA GAT ACA (서열번호 3) | ATT GGA TGG TCT TGG TCC TTA GCC (서열번호 4) |
| GAPDH | GAC ATC AAG AAG GTG GTG AAG CAG (서열번호 5) | CCC TGT TGC TGT AGC CGT ATT CAT (서열번호 6) |
Claims (15)
- 지방줄기세포 유래의 엑소좀을 유효성분으로 포함하는, 신장 기능 개선 또는 신장 질환의 예방, 완화, 개선 또는 치료용 약학 조성물.
- 제1항에 있어서,
혈액요소질소(BUN)와 크레아티닌(CRE) 수치를 감소시키는 것을 특징으로 하는, 약학 조성물. - 제2항에 있어서,
상기 엑소좀의 용량 의존적으로 혈액요소질소(BUN)와 크레아티닌(CRE) 수치를 감소시키는 것을 특징으로 하는, 약학 조성물. - 제3항에 있어서,
급성신장손상에 의해 감소된 개체 체중의 회복, 급성신장손상에 의한 개체 사망률 감소, 또는 급성신장손상에 의한 개체 사망의 지연 중 적어도 하나의 효능을 나타내는, 약학 조성물. - 제4항에 있어서,
상기 효능은 상기 엑소좀의 용량 의존적인 것을 특징으로 하는, 약학 조성물. - 제5항에 있어서,
상기 엑소좀은 시험관내 분석에서 TNF-α 및 IL-6의 발현량을 감소시키는 것을 특징으로 하는, 약학 조성물. - 제1항 내지 제6항 중 어느 한 항에 있어서,
상기 신장 질환은 신부전, 신병증(nephropathy), 신염(nephritis), 네프로제 증후군(nephrotic syndrome), 신섬유화증(renal fibrosis), 신경화증(nephrosclerosis), 혈뇨증, 요로감염증, 신우염 또는 신경색인, 약학 조성물. - 제7항에 있어서,
상기 신부전은 항암제, 항생제, 항균제, 조영제, 화학요법제, 금속, 유기용매 또는 화학약품 중 적어도 1종의 사용 또는 노출에 의해 발병되는 급성 또는 만성 신부전인 것을 특징으로 하는, 약학 조성물. - 제1항 내지 제6항 중 어느 한 항에 있어서,
상기 신장 기능 개선은, 사구체 과다 여과와 관련된 신장 기능 장애 개선, 당뇨병에 의해 발병한 신장 기능 장애 개선, 비신장성 고혈압에 의해 발병한 신장 기능 장애 개선, 사구체신염에 의해 발병한 신장 기능 장애 개선, 상행성 요로 감염증에 의해 발병한 신장 기능 장애 개선, 겸상 적혈구 빈혈증에 의해 발병한 신장 기능 장애 개선, 신장 절제 후의 보상성 비대증에 의해 발병한 신장 기능 장애 개선, 또는 혈관간세포 기능 장애에 의해 발병한 신장 기능 장애 개선인, 약학 조성물. - 제1항 내지 제6항 중 어느 한 항에 있어서,
상기 엑소좀은 하기의 단계들을 수행하여 수득되는, 약학 조성물:
(a) 지방줄기세포 배양액에 트레할로오스를 첨가하는 단계, (b) 상기 트레할로오스가 첨가된 지방줄기세포 배양액을 여과하는 단계, (c) 상기 여과된 지방줄기세포 배양액으로부터, TFF(Tangential Flow Filtration)를 이용하여 엑소좀을 분리하는 단계, 및 (d) 탈염과 버퍼교환(diafiltration)에 사용되는 완충용액에 트레할로오스를 첨가하고, 상기 트레할로오스가 첨가된 완충용액을 이용한 TFF(Tangential Flow Filtration)를 이용하여, 상기 분리된 엑소좀에 대한 탈염과 버퍼교환(diafiltration)을 수행하는 단계. - 제10항에 있어서,
상기 탈염과 버퍼교환은 연속적으로 수행하거나 단속적으로 수행하는 것을 특징으로 하는, 약학 조성물. - 제10항에 있어서,
시작 부피(starting volume)에 대하여 적어도 4배의 부피를 갖는 완충용액을 이용하여 탈염과 버퍼교환을 수행하는 것을 특징으로 하는, 약학 조성물. - 제10항에 있어서,
TFF(Tangential Flow Filtration)를 위해 MWCO(molecular weight cutoff) 100,000 Da, 300,000 Da, 500,000 Da 또는 750,000 Da의 TFF 필터, 또는 0.05 μm TFF 필터를 사용하는 것을 특징으로 하는, 약학 조성물. - 제10항에 있어서,
상기 (c) 단계는 TFF(Tangential Flow Filtration)를 이용하여 1/100 내지 1/25의 부피까지 농축하는 과정을 더 포함하는, 약학 조성물. - 제1항 내지 제6항 중 어느 한 항에 기재된 약학 조성물의 치료학적으로 유효한 양을 포유동물에게 투여하는 단계를 포함하는, 신장 기능을 개선하거나 신장질환을 예방, 완화, 개선 또는 치료하는 방법.
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| WO2024225799A1 (ko) * | 2023-04-27 | 2024-10-31 | 한국과학기술연구원 | 우유 유래 엑소좀을 유효성분으로 포함하는 신장 기능 개선용 조성물 |
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| WO2024225799A1 (ko) * | 2023-04-27 | 2024-10-31 | 한국과학기술연구원 | 우유 유래 엑소좀을 유효성분으로 포함하는 신장 기능 개선용 조성물 |
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