negative-mediated

Russian translation: см.

11:42 Sep 24, 2023
English to Russian translations [PRO]
Medical - Medical: Pharmaceuticals / clinical trials
English term or phrase: negative-mediated
The distribution and CL of the antibody portion of sacituzumab govitecan are likely to be similar to those other IgG1 antibodies and are influenced by target (Trop-2)-mediated uptake on antigen-expressing cells, pinocytosis, and neonatal Fc receptor negative-mediated CL mechanisms in vivo.
Maria Kopteva
Russian Federation
Local time: 12:58
Russian translation:см.
Explanation:
не имея детальной информации по предмету вопроса, могу предположить, что речь идет о "механизмах клиренса (ADCs) с(на основе) обратной отрицательной связью, опосредованной неонатальными Fc-рецепторами".
Selected response from:

Marlin31
Russian Federation
Local time: 12:58
Grading comment
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +1см.
Marlin31
Summary of reference entries provided
only finding
liz askew
-
harser
отрицательное влияние на клиренс
hawkwind

  

Answers


1 day 9 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
см.


Explanation:
не имея детальной информации по предмету вопроса, могу предположить, что речь идет о "механизмах клиренса (ADCs) с(на основе) обратной отрицательной связью, опосредованной неонатальными Fc-рецепторами".

Marlin31
Russian Federation
Local time: 12:58
Specializes in field
Native speaker of: Native in RussianRussian
PRO pts in category: 436

Peer comments on this answer (and responses from the answerer)
agree  Natalia Novichenko
10 hrs
  -> Спасибо, Наталия!
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Reference comments


23 hrs
Reference: only finding

Reference information:
CL = clearance


unable to find your phrase per se

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Note added at 23 часа (2023-09-25 10:52:28 GMT)
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FWIW

I think "negative" shouldn't be there, see
https://ascpt.onlinelibrary.wiley.com/doi/pdf/10.1002/psp4.1...

Monoclonal antibody (mAb) pharmacokinetics (PK) have largely been predicted via allometric scaling with little considera-tion for cross-species differences in *****neonatal Fc receptor (FcRn) affinity or clearance/distribution mechanisms****. To address this, we developed a mAb physiologically-based PK model that describes the intracellular trafficking and FcRn recycling of mAbs in a human FcRn transgenic homozygous mouse and human.

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Note added at 23 часа (2023-09-25 10:53:21 GMT)
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https://www.academia.edu/61188501/Toward_in_vitro_to_in_vivo...

Application of a neonatal Fc receptor-mediated transcytosis assay to understand the interplaying clearance mechanisms

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Note added at 23 часа (2023-09-25 10:54:40 GMT)
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http://pure-oai.bham.ac.uk/ws/files/159151103/fphys_12_75383...

Another, the neonatal Fc receptor (FcRn) is key to clearance of IgG in vivo
and serum half-life of antibody is explicitly linked to function of this receptor. The liver
is a site of significant expression of FcRn and indeed several hepatic cell populations
including Kupffer cells and liver sinusoidal endothelial cells (LSEC), p

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Note added at 23 часа (2023-09-25 10:55:45 GMT)
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your initial translation is not right so it seems

liz askew
United Kingdom
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
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23 hrs
Reference: -

Reference information:
Negative mediation, also called inconsistent mediation, implies that the effect of the exposure on the outcome, that goes through the mediator is opposite to the direct effect of the exposure on the outcome.
https://academic.oup.com/ije/article/48/4/1286/5224526

harser
Native speaker of: Native in RussianRussian
PRO pts in category: 23

Peer comments on this reference comment (and responses from the reference poster)
neutral  liz askew: does this work with "CL mechanisms"?
25 mins
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1 day 1 hr
Reference: отрицательное влияние на клиренс

Reference information:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&c...
По современным
представлениям, в метаболизме антитела большую роль играет неонатальный рецептор FcRn,
который передает IgG от матери к плоду через
плаценту, а также через проксимальный участок
его тонкого кишечника при вскармливании
младенца молоком [21]. После синтеза молекулы IgG, пиноцитированные эндотелиальными клетками, связываются с высоким аффинитетом (KD ≈ 10 нM)
с гистидиновыми остатками сайта связывания с
образованием комплекса IgG'FcRn при пониженной рН (6,0–6,5), избегая, таким образом,
деградации в лизосомах. После возвращения к
клеточной поверхности IgG высвобождается
при физиологических значениях рН (7,0–7,5).
В итоге, эта система обеспечивает длительную
рециркуляцию IgG [20, 21] от 1 до 3'х недель, в
зависимости от подкласса
https://cyberleninka.ru/article/n/primenenie-biotehnologiche...
Имея доступные сведения, можно предположить, что повышенный нормализованный по весу клиренс, наблюдаемый у младенцев и детей младшего возраста, связан с низким уровнем экспрессии FcRn в эндотелиальных клетках сосудов.

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Note added at 1 day 1 hr (2023-09-25 12:47:20 GMT)
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«опосредованные FcRn механизмы, затрудняющие клиренс»

hawkwind
Russian Federation
Specializes in field
Native speaker of: Native in RussianRussian
PRO pts in category: 498
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