The cluster [Re6Se8I6]3− induces low hemolysis of human erythrocytes in vitro: Protectives effect of albumin

Edgardo Rojas-Mancilla, Alexis Oyarce, Viviana Verdugo, Zhiping Zheng, Rodrigo Ramírez-Tagle

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The cluster Re6Se8I63− has been shown to induce preferential cell death of a hepatic carcinoma cell line, thus becoming a promising anti-cancer drug. Whether this cluster induces acute hemolysis or if it interacts with albumin remains unclear. The effect of acute exposure of human red blood cells to different concentrations of the cluster with and without albumin is described. Red blood cells from healthy donors were isolated, diluted at 1% hematocrit and exposed to the cluster (25–150 µM) at 37 °C, under agitation. Hemolysis and morphology were analyzed at 1 and 24 h. The potential protection of 0.1% albumin was also evaluated. Exposition to therapeutic doses of the cluster did not induce acute hemolysis. Similar results were observed following 24 h of exposition, and albumin slightly reduced hemolysis levels. Furthermore, the cluster induced alteration in the morphology of red blood cells, and this was prevented by albumin. Together, these results indicate that the cluster Re6Se8I63− is not a hemolytic component and induces moderate morphological alterations of red blood cells at high doses, which are prevented by co-incubation with albumin. In conclusion, the cluster Re6Se8I63− could be intravenously administered in animals at therapeutic doses for in vivostudies.

Original languageEnglish (US)
Pages (from-to)1728-1735
Number of pages8
JournalInternational journal of molecular sciences
Issue number1
StatePublished - Jan 13 2015


  • Albumin
  • Cluster
  • Erythrocytes
  • Hemolysis

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


Dive into the research topics of 'The cluster [Re6Se8I6]3− induces low hemolysis of human erythrocytes in vitro: Protectives effect of albumin'. Together they form a unique fingerprint.

Cite this