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Updated: Jul 9, 2026

Optimized Fibrin Gel Bead Assay for the Study of Angiogenesis
Published on: April 29, 2007
Retraction: "Mesoglycan exerts its fibrinolytic effect through the activation of annexin A2"
Abstract:
Retraction: "Mesoglycan exerts its fibrinolytic effect through the activation of annexin A2" by Raffaella Belvedere, Elva Morretta, Emanuela Pessolano, Nunzia Novizio, Alessandra Tosco, Amalia Porta, James Whiteford, Mauro Perretti, Amelia Filippelli, Maria Chiara Monti, Antonello Petrella, J Cell Physiol. 2020, 236: 4926-4943. The above article, published online on 7 December 2020 in Wiley Online Library (https://onlinelibrary.wiley.com/doi/full/10.1002/jcp.30207) has been retracted by agreement between the journal's Editor in Chief, Alexander Hutchison, and Wiley Periodicals LLC. The retraction has been agreed due to concerns raised by third parties. Some flaws and inconsistencies between results presented and experimental methods described were found. Specifically, manipulations have been detected affecting the Western Blot experiment presented in Figure 3a, and the microscopy images presented in Figure 5 and Figure S7. The corresponding author, Antonello Petrella, acknowledged not having noticed the anomalies at earlier stages and collaborated with the investigation. The original experimental data related to the concerns identified were no longer available; the authors have performed new Western Blot experiments. However, based on the editorial evaluation, the provided material failed to adequately address the concerns. For instance, the data intended to replicate the findings in Figure 3a were provided at a quality too low to ensure its accuracy. Furthermore, the concerns regarding the manipulation of microscopy images in Figure 5 and Figure S7 remained entirely unaddressed. Accordingly, the editors no longer have confidence in the integrity of the data presented in the article and consider the conclusions to be invalid. Antonello Petrella, on behalf of all authors, believes that the conclusions of the article are not affected by the identified issues, in part also corroborated by the new data; all authors disagree with the decision to retract the article.
Insights
This study on mesoglycan's fibrinolytic effect was retracted due to detected data manipulation in Western Blot and microscopy images. The journal editors lost confidence in the data integrity, deeming the conclusions invalid.
Area of Science:
- Biochemistry and Molecular Biology
- Cellular Physiology
- Thrombosis and Hemostasis
Context:
- The original study investigated the mechanism by which mesoglycan exerts its fibrinolytic effect.
- The research focused on the potential activation of annexin A2 as the underlying pathway.
- This area is critical for understanding blood clot dissolution and developing anticoagulant therapies.
Purpose:
- To investigate the role of mesoglycan in fibrinolysis.
- To determine if mesoglycan activates annexin A2.
- To elucidate the molecular mechanisms of mesoglycan's anticoagulant properties.
Summary:
- The article "Mesoglycan exerts its fibrinolytic effect through the activation of annexin A2" has been retracted.
- Concerns were raised regarding data manipulation in Western Blot (Figure 3a) and microscopy images (Figures 5 and S7).
- Despite new experiments, the provided data failed to resolve the concerns, leading to a loss of confidence in the findings.
Impact:
- The retraction invalidates the study's conclusions regarding mesoglycan's mechanism of action.
- This highlights the importance of rigorous data verification in scientific publishing.
- The scientific community must rely on alternative or re-verified data for understanding mesoglycan's role in fibrinolysis.
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