抗体開発適性評価 抗体開発適性評価

抗体開発適性評価

Developability Assessment
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抗体開発適性に関するデータ駆動型インサイトを、3~5日で迅速に提供し、次の最適化を加速します。

Biointronの抗体開発適性評価プラットフォームは、精度と効率性を両立しながらバイオ医薬品の創薬研究を加速するために設計されています。本サービスは、ハイスループット発現と包括的なin vitroアッセイパネルを統合し、抗体候補の結合性、安定性および開発適性を迅速に評価することを可能にします。

1件あたりわずか3~5日という迅速なターンアラウンドタイムにより、創薬初期段階で実用的なデータを提供し、有望な候補の優先順位付けを支援します。

抗体開発適性評価 Overview

抗体開発適性評価サービスの特長

ハイスループット抗体発現

  • 1バッチあたり3,000以上のモノクローナル抗体(mAbs)
  • 8~10日間のタイムラインで実施可能

機能特性解析

  • ハイスループット結合解析・細胞結合・親和性・エピトープビニング
  • 7~10日で対応

抗体開発適性評価

  • 包括的かつカスタマイズ可能な開発適性評価
  • 3~5日で対応

Biointronでは、1バッチあたり3,000以上のモノクローナル抗体(mAbs)をハイスループットで発現することにより、大規模かつ迅速な候補生成を実現しています。

その後、抗体はFACS結合解析、親和性評価、エピトープビニングなどのハイスループット結合アッセイによって解析されます。

これらのアッセイにより、結合特性および機能的性能に関する深いインサイトを提供し、従来の多段階スクリーニングを置き換えることで、発現から機能解析までをシームレスにつなぐ、より迅速かつ効率的なプロセスを実現します。

抗体開発適性評価 Overview

有望な候補を特定するため、Biointronではカスタムアッセイパッケージをご提供しています。これらのアッセイにより、自己会合性(AC-SINS)、疎水性(HIC-HPLC)、熱安定性(DSF)、凝集性(SEC-HPLC、DLS)、電荷不均一性(iCIEF、IEX-HPLC)、および非特異的結合(PSR ELISA、BVP/DNA/インスリンELISA)などの重要特性を評価します。

各アッセイは最小限の試料量(1アッセイあたり1 mg未満)で実施可能であり、並列またはタンデムでの柔軟な試験設計に対応しています。これにより、コスト効率に優れた初期段階でのインサイトを提供し、候補抗体の優先順位付けおよびCMC開発の効率化を支援します。

抗体開発適性評価サービス

分析 開発性評価項目 タイムライン
SEC-HPLC Protein quality 3-5 days
CE-SDS Protein quality
DSF Tm & Tonset Thermal Stability
AC-SINS Self-interaction
HIC-HPLC Hydrophobicity
DLS Tagg/Radium analysis
Heparin HPLC Positive charge tendency
IEX-HPLC Charge Heterogeneity
iCIEF Charge Heterogeneity
PSR ELISA Non-specific binding

次世代抗体キャラクタリゼーション・プラットフォーム

Biacore Biacore
Carterra Carterra
iQue Screener iQue Screener
cGE cGE
DLS Reader DLS Reader
SUPR-DSF SUPR-DSF
Octet Octet

当社のラボは、堅牢かつデータリッチな抗体特性解析および開発性評価を実現するため、最先端のハイスループット機器を完備しています。これらの先進的なプラットフォームにより、従来の標準的な手法を大きく上回る性能を実現し、AI時代に対応した高速性・高精度・大規模処理能力を提供することで、膨大な数の抗体配列スクリーニングを可能にしています。

抗体開発性評価ワークフロー

ハイスループット発現
1バッチあたり3,000以上のデザイン
抗体特性解析
細胞結合、親和性、エピトープビニング
物理安定性
SEC-HPLC、CE-SDS、DSF(TmおよびTonset)、AC-SINS、HIC-HPLC、DLS、ヘパリンアフィニティHPLC、IEX-HPLC、iCIEF解析
非特異的結合評価
PSR(BVP/DNA/インスリン)ELISA

事例研究

Case 1: AC-SINS Assay

Using multiple controls to ensure reliability, we compared several marketed antibodies and demonstrated that bevacizumab showed minimal self-interaction, while briakinumab and lenzilumab exhibited strong red shifts consistent with high aggregation propensity. Our results aligned closely with published reference data, validating the accuracy of our platform and its value in predicting viscosity challenges and formulation risks early in antibody development.

vhh-case1-1
vhh-case1-2
Samples AC-SINS Δλmax (nm)
Biointron References
Bevacizumab 0 0.8
Briakinumab 24 29.6
Emibetuzumab 19 29.6
Infliximab 21 29.6
Lenzilumab 25 29.6

Case 2: HIC-HPLC Analysis

This analysis is a highly reliable method for evaluating antibody hydrophobicity, a key parameter in therapeutic antibody and ADC development. Here, multiple antibody candidates were analyzed against a trastuzumab control, with results demonstrating clear and consistent retention profiles that confirm favorable hydrophobicity. The samples with RRT > 1.5 are high-risk in Hydrophobicity (RRT=RT/RT[Trastuzumab]).

HIC-HPLC Analysis

Case 3: Non-Specific Binding

These PSR assays offer robust, cost-effective assessments of the non-specific binding of mAbs. By incorporating five independent controls, the assay ensures high reliability and reproducibility of results. Using “dirty antigens” the PSR assay mimics in vivo conditions to indicate potential non-specific binding, providing valuable insight into antibody behavior.

BVP ELISA
dsDNA ELISA
Insulin ELISA
“As the Head of Protein Sciences at Biointron, I am very proud to introduce and promote our developability assessment services, offering fundamental measures to help you pick candidates with superior biophysical characteristics and better preclinical and clinical performances. With overwhelming evidence and deeper understanding on the biotherapeutics, developability assessment has become an embedded part of antibody discovery, and Biointron is offering a whole package to fit the trend of the industry.”
Brady Wu
Dr. Brady Wu
Head of Protein Sciences

FAQs

  • What is antibody developability and why is it important in antibody drug development?

    Developability refers to the set of biophysical and biochemical properties that determine whether an antibody candidate can be successfully manufactured, formulated, stored, and administered as a drug. It goes beyond binding affinity to the target and includes properties such as stability, solubility, manufacturability, and immunogenicity risk. While target binding and potency are essential, many promising antibodies fail in late-stage development due to poor stability, aggregation, or off-target interactions. Evaluating developability early helps reduce the high cost and risk of late-stage failure.

  • What services are included in Biointron’s Antibody Developability Assessment?

    Biointron’s Antibody Developability Assessment involves assays which evaluate critical properties including protein quality, thermal stability, self-interaction, hydrophobicity, radium analysis, positive charge tendency, charge heterogeneity, and non-specific binding. Each analysis has a timeline of three to five days.

  • What ensures the quality and effectiveness of Biointron’s Developability Assessment?

    The quality and effectiveness of Biointron’s Antibody Developability Assessment are ensured through a combination of advanced technologies, expert analysis, and a data-driven workflow. All assays are performed under rigorous conditions. Biointron’s experienced scientific team interprets the results, provides detailed reports, and offers protein engineering support when needed, ensuring that only the most promising candidates move forward, thus reducing development risks and accelerating CMC readiness.

  • Why is it important to assess developability early in drug discovery?

    Assessing developability early helps identify issues related to homogeneity, stability, solubility, and specificity that could lead to ailures in efficacy, safety, or manufacturability during later stages. Early screening reduces development risks, shortens timelines, and avoids costly setbacks during CMC or clinical trials.

  • How does Biointron’s developability assessment reduce risk in clinical and CMC stages?

    By identifying potential liabilities such as instability, aggregation, or immunogenicity early on, Biointron helps prioritize robust ntibody candidates. This reduces the chance of costly failures during clinical development or manufacturing, supporting a smoother, faster path to IND and commercialization.

    Our Developability Assessment complements our other antibody optimization services by evaluating the manufacturability and stability of candidates that have already undergone humanization or affinity maturation. After antibodies are engineered for improved affinity or reduced immunogenicity, developability testing helps ensure those optimized sequences maintain favorable biophysical properties (such as solubility, stability, and specificity)

  • How does modifying an antibody (e.g., bispecific antibodies or ADCs) affect its developability?

    Modifying an antibody may introduce new structural elements that affect key properties like stability, solubility, and antigen-binding activity. Therefore, it's crucial to assess the developability of modified antibodies early in the development process. This helps identify potential issues with manufacturability or therapeutic performance. Additionally, such modifications often require new analytical tools and production methods, which an further influence the developability and scalability of the final product.

  • What factors influence whether an antibody candidate is considered “developable”?

    Key determinants include homogeneity, stability, solubility, and specificity. Antibodies with issues such as visible particles, poor expression yield, low thermal stability, or a tendency to aggregate often signal high risk. Post-translational modifications in the ntigen-binding regions (e.g., deamidation, isomerization, or oxidation) can also undermine potency and safety. Identifying these iabilities early is critical for candidate selection.

  • How does developability assessment differ at discovery versus CMC stages?

    At the discovery stage, assessments are rapid and high-throughput, consuming small amounts of material to compare many candidates side by side. The goal is to flag risks early and select the most promising molecules for advancement.

    By contrast, CMC-stage studies are more comprehensive, requiring larger material quantities and extensive testing for formulation, stress stability, and manufacturing robustness. Early assessment avoids costly surprises at this later, resource-intensive stage.

  • Can developability issues be corrected once identified?

    Yes. Many liabilities can be mitigated through protein engineering (e.g., removing high-risk motifs, reducing hydrophobic patches, optimizing charge balance), or through formulation strategies such as buffer optimization or excipient use. Early detection makes these fixes faster and less costly compared to adjustments later in development.

参考資料

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