Evidence map›Paper›PMID 24287623›Full record

ArticlePharmaceutical research2014

Thermodynamic and fluorescence analyses to determine mechanisms of IgG1 stabilization and destabilization by arginine.

Masakazu Fukuda, Daisuke Kameoka, Takuya Torizawa, Satoshi Saitoh, Masaya Yasutake, Yoshimi Imaeda, Akiko Koga, Akihiko Mizutani

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

13 citing papers in PubMed, 62 citations in OpenAlex.

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  11. Advanced protein formulations.Protein science : a publication of the Protein Society · 2015
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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

8 authors at 1 institution in 1 country.

Masakazu FukudaProduct Engineering Department, Chugai Pharmaceutical Co., Ltd., 5-5-1 Ukima, Kita-ku, Tokyo, 115-8543, Japan, fukuda.masakazu76@chugai-pharm.co.jp.
Daisuke Kameoka
Takuya Torizawa
Satoshi Saitoh
Masaya Yasutake
Yoshimi Imaeda
Akiko Koga
Akihiko Mizutani
Chugai Pharma (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate mechanisms governing the stabilization and destabilization of immunoglobulin (IgG1) by arginine (Arg).

methodsThe effects of Arg on the aggregation/degradation, thermodynamic stability, hydrophobicity, and aromatic residues of IgG1 were respectively investigated by size-exclusion chromatography, differential scanning calorimetry, probe fluorescence, and intrinsic fluorescence.

resultsArg monohydrochloride (Arg-HCl) suppressed IgG1 aggregation at near-neutral pH, but facilitated aggregation and degradation at acidic pH or at high storage temperature. Equimolar mixtures of Arg and aspartic acid (Asp) or glutamic acid (Glu) suppressed aggregation without facilitating degradation even at high temperature. Arg-HCl decreased the thermodynamic stability of IgG1 by enthalpic loss, which was counteracted by using Asp or Glu as a counterion for Arg. The suppression of aggregation by Arg-HCl was well correlated with the decrease in hydrophobicity of IgG1. The intrinsic fluorescence of IgG1 was unaffected by Arg-HCl.

conclusionsSuppression of IgG1 aggregation can be attributed to the interaction between Arg and hydrophobic residues; on the other hand, facilitation of aggregation and degradation is presumably due to the interaction between Arg and some acidic residues, which could be competitively inhibited by simultaneously adding either Asp or Glu.

Indexed as

ThermodynamicsArginineDrug StabilityFluorescenceHumansImmunoglobulin GSpectrometry, FluorescenceArginineImmunoglobulin G

Identifiers

PMID24287623
OpenAlexW1992547247

What OpenQuestion holds

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Registered trials

None linked

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.