Evidence map›Paper›PMID 28439081›Full record

ArticleScientific reports2017

Long lasting neutralization of C5 by SKY59, a novel recycling antibody, is a potential therapy for complement-mediated diseases.

Taku Fukuzawa, Zenjiro Sampei, Kenta Haraya, Yoshinao Ruike, Meiri Shida-Kawazoe, Yuichiro Shimizu, Siok Wan Gan, Machiko Irie, Yoshinori Tsuboi, Hitoshi Tai and 24 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
3.6field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 104 citations in OpenAlex.

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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

34 authors at 1 institution in 1 country.

Taku FukuzawaChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Zenjiro SampeiChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Kenta HarayaChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Yoshinao RuikeChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Meiri Shida-KawazoeResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Yuichiro ShimizuChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Siok Wan GanChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Machiko IrieResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Yoshinori TsuboiResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Hitoshi TaiChugai Research Institute for Medical Science, Inc., Gotemba, Shizuoka, Japan.
Tetsushi SakiyamaResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Akihisa SakamotoResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Shinya IshiiResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Atsuhiko MaedaResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Yuki IwayanagiResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Norihito ShibaharaResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Mitsuko ShibuyaResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Genki NakamuraResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Takeru NambuResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Akira HayasakaResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Futa MimotoResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Yuu OkuraChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Yuji HoriResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Kiyoshi HabuResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Manabu WadaResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Takaaki MiuraResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Tatsuhiko TachibanaResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Kiyofumi HondaChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore.
Hiroyuki TsunodaResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Takehisa KitazawaResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Yoshiki KawabeResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.ORCID http://orcid.org/0000-0002-6465-7146
Tomoyuki IgawaResearch Division, Chugai Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan.
Kunihiro HattoriResearch Division, Chugai Pharmaceutical Co., Ltd., Kamakura, Kanagawa, Japan.
Junichi NezuChugai Pharmabody Research Pte. Ltd., 3 Biopolis Drive, #07-11 to 16, Synapse, 138623, Singapore. nezujyn@chugai-pharm.co.jp.
Chugai Pharma (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dysregulation of the complement system is linked to the pathogenesis of a variety of hematological disorders. Eculizumab, an anti-complement C5 monoclonal antibody, is the current standard of care for paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome (aHUS). However, because of high levels of C5 in plasma, eculizumab has to be administered biweekly by intravenous infusion. By applying recycling technology through pH-dependent binding to C5, we generated a novel humanized antibody against C5, SKY59, which has long-lasting neutralization of C5. In cynomolgus monkeys, SKY59 suppressed C5 function and complement activity for a significantly longer duration compared to a conventional antibody. Furthermore, epitope mapping by X-ray crystal structure analysis showed that a histidine cluster located on C5 is crucial for the pH-dependent interaction with SKY59. This indicates that the recycling effect of SKY59 is driven by a novel mechanism of interaction with its antigen and is distinct from other known pH-dependent antibodies. Finally, SKY59 showed neutralizing effect on C5 variant p.Arg885His, while eculizumab does not inhibit complement activity in patients carrying this mutation. Collectively, these results suggest that SKY59 is a promising new anti-C5 agent for patients with PNH and other complement-mediated disorders.

Indexed as

AnimalsAntibodies, NeutralizingComplement C5Crystallography, X-RayHemoglobinuria, ParoxysmalHumansMacaca fascicularisProtein BindingProtein ConformationAntibodies, NeutralizingComplement C5

Identifiers

PMID28439081
PMCPMC5430875
OpenAlexW2606230253

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.