Mcl-1 regulation and its role in multiple myeloma

Steven Le Gouill, Klaus Podar, Jean-Luc Harousseau, Kenneth C Anderson

Research output: Journal article (peer-reviewed)Review article

128 Citations (Scopus)


Among the Bcl-2 family, myeloid cell leukemia-1 (Mcl-1) distinguishes itself from the other pro-survival proteins by its ability to oppose to a wide variety of pro-apoptotic stimuli, short half-life, and presence of polypeptide sequences enriched in proline (P), glutamic acid (E), serine (S) and threonine (T) domains (PEST). Moreover, Mcl-1 undergoes a complex transcriptional, post-transcriptional, and post-translational regulation process. This regulation modifies not only Mcl-1 expression, but also its function. Various extra-cellular stimuli, including cytokines, growth factors, 12-O-tetradecanoyl-phorbol 13-acetate (TPA) and IFN, activate pathways which regulate Mcl-1 expression. Furthermore, Mcl-1 can be alternatively spliced into a long (Mcl-1) or a short (Mcl-1S) form. Mcl-1 opposes pro-apoptotic proteins and can be either cleaved or phosphorylated at a post-translational level. Mcl-1-spliced products, Mcl-1-cleaved products, or phosphorylated Mcl-1 have either a pro or an anti-apoptotic function, highlighting the complexity and pivotal role of Mcl-1 regulation. Here we discuss the regulation and function of Mcl-1 in the pathophysiology of multiple myeloma.

Original languageEnglish
Pages (from-to)1259-1262
Number of pages4
JournalCell Cycle
Issue number10
Publication statusPublished - Oct 2004
Externally publishedYes


  • Exons/genetics
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Interleukin-6/metabolism
  • Multiple Myeloma/metabolism
  • Myeloid Cell Leukemia Sequence 1 Protein
  • Neoplasm Proteins/chemistry
  • Proto-Oncogene Proteins c-bcl-2/chemistry
  • Vascular Endothelial Growth Factor A/metabolism


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