Retraction: Procollagen Lysyl Hydroxylase 2 Is Essential for Hypoxia-Induced Breast Cancer Metastasis

This article (1) has been retracted at the request of the authors. The authors found that lanes 4, 5, and 6 of the HIF-1α immunoblot in Fig. 3A are identical images. An internal review corroborated the authors’ claim, and the editors agreed with the authors’ retraction request. The authors apologize to the scientific community and deeply regret any inconveniences or challenges resulting from the publication and subsequent retraction of this article.A copy of this Retraction Notice was sent to the last known email addresses for all authors. Four authors (Denis Wirtz, Carmen C. Wong, Daniele M. Gilkes, and Gregg L. Semenza) agreed to the retraction; the 3 remaining authors could not be located.