RETRACTED: Cejuela et al. Metformin and Breast Cancer: Where Are We Now? Int. J. Mol. Sci. 2022, 23, 2705

Mónica Cejuela¹, Begoña Martin-Castillo^{2

3}, Javier A Menendez^{3

4}, Sonia Pernas^{1

5}

Affiliations

¹ Department of Medical Oncology, Catalan Institute of Oncology (ICO)-L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
² Unit of Clinical Research, Catalan Institute of Oncology (ICO)-Girona, 17007 Girona, Spain.
³ Girona Biomedical Research Institute (IDIBGI), Salt, 17190 Girona, Spain.
⁴ Program Against Cancer Therapeutic Resistance (ProCURE), Metabolism and Cancer Group, Catalan Institute of Oncology (ICO)-Girona, Salt, 17190 Girona, Spain.
⁵ Breast Cancer Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.

Mónica Cejuela et al. Int J Mol Sci. 2025.

. 2025 Jun 5;26(11):5407.

doi: 10.3390/ijms26115407.

Mónica Cejuela¹, Begoña Martin-Castillo^{2

3}, Javier A Menendez^{3

4}, Sonia Pernas^{1

5}

¹ Department of Medical Oncology, Catalan Institute of Oncology (ICO)-L'Hospitalet de Llobregat, 08908 Barcelona, Spain.
² Unit of Clinical Research, Catalan Institute of Oncology (ICO)-Girona, 17007 Girona, Spain.
³ Girona Biomedical Research Institute (IDIBGI), Salt, 17190 Girona, Spain.
⁴ Program Against Cancer Therapeutic Resistance (ProCURE), Metabolism and Cancer Group, Catalan Institute of Oncology (ICO)-Girona, Salt, 17190 Girona, Spain.
⁵ Breast Cancer Group, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, 08908 Barcelona, Spain.

Abstract

The journal retracts the article titled "Metformin and Breast Cancer: Where Are We Now [...].

RETRACTED: Metformin and Breast Cancer: Where Are We Now?
Cejuela M, Martin-Castillo B, Menendez JA, Pernas S. Cejuela M, et al. Int J Mol Sci. 2022 Feb 28;23(5):2705. doi: 10.3390/ijms23052705. Int J Mol Sci. 2022. Retraction in: Int J Mol Sci. 2025 Jun 05;26(11):5407. doi: 10.3390/ijms26115407. PMID: 35269852 Free PMC article. Retracted. Review.

1. Cejuela M., Martin-Castillo B., Menendez J.A., Pernas S. RETRACTED: Metformin and Breast Cancer: Where Are We Now? Int. J. Mol. Sci. 2022;23:2705. doi: 10.3390/ijms23052705. - DOI - PMC - PubMed