KR20180055900A - 고감염가 또한 고순도의 파보바이러스의 생산 방법 - Google Patents
고감염가 또한 고순도의 파보바이러스의 생산 방법 Download PDFInfo
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Abstract
Description
Claims (11)
- 고감염가 또한 고순도의 파보바이러스의 생산 방법으로서,
(a) 숙주 세포가 파보바이러스에 감염된 때의 배양 기재의 세포 밀도의 24시간마다의 경시 변화를, 감염시 세포 밀도(A)마다 사전에 별도 산출해 두는 공정과,
(b) 공정(a)에 있어서 사전에 산출한 세포 밀도의 경시 변화로부터,
(b1) 감염으로부터, 세포 밀도의 경시 변화의 피크시까지의 시간(Tmax)과,
(b2) Tmax에 있어서의 세포 밀도(Bmax)와 A가 이하의 식(1)을 만족하는 A1과,
(b3) 그러한 A1 중 최대의 감염시 세포 밀도(Amax)와,
(b4) 이하의 식(2)를 만족하는 A2
를 결정하는 공정과,
Bmax/A1 > 1.2 식(1)
Amax ≥ A2 ≥ Amax/10 식(2)
(c) 공정(b)의 (b4)에서 결정한 A2의 감염시 세포 밀도의 숙주 세포와 혈청 배지를 포함하는 상기 배양 기재에, 파보바이러스의 시드 바이러스를 감염 다중성(MOI)이 0.001∼0.1이 되도록 접종하는 공정과,
(d) 공정(c)에서 얻어진 숙주 세포와 파보바이러스를 포함하는 배양물을, 공정(b)의 (b1)에서 결정한 Tmax 이상 Tmax+48시간 미만의 시간 배양하는 공정과,
(e) 공정(d)의 배양 상청을 무혈청 배지로 교환하고, 12시간 이상 배양하는 공정과,
(f) 공정(e)의 배양에 의해 얻어지는 파보바이러스를 포함하는 배양 상청을 회수하는 공정
을 포함하고, 상기 공정(b)에 있어서, 식(1)을 만족하는 A가 존재하지 않는 경우, 별도의 감염시 세포 밀도 A를 채용하여 공정(a) 및 공정(b)를 재차 실시하는, 방법. - 제1항에 있어서, 상기 숙주 세포가 접착 의존성 세포인 방법.
- 제1항 또는 제2항에 있어서, 상기 파보바이러스가, 돼지 파보바이러스(PPV), 개 파보바이러스(CPV), 마우스 미소 바이러스(MVM), 래트 바이러스(RV), H-1 바이러스(H-1), 고양이 파보바이러스(FPV), 거위 파보바이러스(GPV), 또는 소 파보바이러스(BPV)인 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 공정(e)가 배양 상청을 무혈청 배지로 교환하고 24시간 이상 배양하는 공정인 방법.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 공정(b)가, Bmax와 A가 이하의 식(1’):
Bmax/A1' ≥ 2.0 식(1’)
를 만족하는 A1'를 산출하는 공정을 포함하는 방법. - 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 공정(d) 및 (e)에 있어서의 배양이 33℃ 이상 39℃ 이하의 온도에서 실시되는 방법.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 상기 공정(d) 및 (e)에 있어서, 상기 숙주 세포와 상기 파보바이러스가 동시 진행으로 증식하는 방법.
- 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 공정(f)가 상기 배양 상청에 포함되는 유리의 숙주 세포와 숙주 세포의 파편을 제거하는 공정을 포함하는 방법.
- 제8항에 있어서, 상기 제거 공정이 공경 0.2 ㎛∼0.45 ㎛의 막여과를 이용하여 행해지는 방법.
- 제1항 내지 제9항 중 어느 한 항에 기재된 방법에 의해 얻어지는, 109 TCID50/mL 이상의 감염가의 파보바이러스.
- 파보바이러스의 감염가가 109 TCID50/mL 이상이며, 또한, 상기 파보바이러스의 감염가(TCID50/mL)와 불순물 단백질 농도(ng/mL)의 비가 5000 : 1 초과인, 비농축의 세포 배양 상청 유래의 파보바이러스.
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- 2016-10-05 CN CN201680064364.3A patent/CN108350437B/zh active Active
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| Publication number | Publication date |
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| CN108350437B (zh) | 2021-10-15 |
| JP6592100B2 (ja) | 2019-10-16 |
| WO2017077804A1 (ja) | 2017-05-11 |
| RU2701948C1 (ru) | 2019-10-02 |
| US10808227B2 (en) | 2020-10-20 |
| EP3372677A4 (en) | 2018-09-12 |
| EP3372677B1 (en) | 2019-08-21 |
| TWI616529B (zh) | 2018-03-01 |
| EP3372677B8 (en) | 2019-09-25 |
| US20180346883A1 (en) | 2018-12-06 |
| KR102036467B1 (ko) | 2019-10-24 |
| JPWO2017077804A1 (ja) | 2018-06-07 |
| EP3372677A1 (en) | 2018-09-12 |
| CN108350437A (zh) | 2018-07-31 |
| TW201716570A (zh) | 2017-05-16 |
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