JCI early table of contents for Dec. 9, 2013
Breast cancer prognosis associated with oncometabolite accumulation
The metabolic profile of cancer cells can be used to develop therapies and identify biomarkers associated with cancer outcome. In this issue of the Journal of Clinical Investigation Stefan Ambs and colleagues at the National Cancer Institute discovered an association between the oncometabolite 2-hydroxyglutarate (2-HG) levels, DNA methylation patterns, and breast cancer prognosis. The authors identified a breast cancer subtype with high levels of 2-HG, and a district DNA methylation pattern that was associated with reduced survival. This breast cancer subtype was common in African-American breast cancer patients, who as a group have a high prevalence of aggressive breast cancers. This study indicates that evaluation of 2-HG along with DNA methylation may be a useful biomarker for breast cancer diagnosis and prognosis
TITLE: MYC-driven accumulation of 2-hydroxyglutarate is associated with breast cancer prognosis
AUTHOR CONTACT: Stefan Ambs
National Cancer Institute, Bethesda, MD, USA
Phone: 301-496-4668; E-mail: ambss@mail.nih.gov
View this article at: http://www.jci.org/articles/view/71180?key=e428ff2ab0218ea590e1
Choloroquine reduces formation of bone resorbing cells in murine osteoporosis
Bone homeostasis requires precise balance between deposition of new bone by osteoblasts and resorption of old bone by osteoclasts. Bone diseases, including osteoporosis and rheumatoid arthritis, are the result of increased osteoclast activity and formation, which allows bone resorption to outpace deposition. In this issue of the Journal of Clinical Investigation, Brendan Boyce and colleagues at the University of Rochester evaluated the role of TNF receptor–associated receptor 3 (TRAF3) in promoting osteoclast formation. Mice lacking TRAF3 in osteoclast precursor cells had mild osteoporosis that was associated with increased osteoclast formation. The authors found that chloroquine treatment increased TRAF3 in osteoclast precursor cells and limited osteoclast generation. Furthermore, treatment of mouse models of osteoporosis with chloroquine inhibited osteoclast formation. These studies implicate that therapies aimed at increasing TRAF3 in osteoclast precursor cells may limit bone loss for those with bone diseases.
TITLE: Chloroquine reduces osteoclastogenesis in murine osteoporosis by preventing TRAF3 degradation
AUTHOR CONTACT: Brendan Boyce
University of Rochester Medical Center, Rochester, NY, USA
Phone: 585-275-5837; Fax: 585-276-2832; E-mail: brendan_boyce@urmc.rochester.edu
View this article at: http://www.jci.org/articles/view/66947?key=5187dc887c5491664800
ALSO IN THIS ISSUE
TITLE:
Increased sugar uptake promotes oncogenesis via EPAC/RAP1 and O-GlcNAc pathways
AUTHOR CONTACT:
Mina Bissell
Lawrence Berkeley National Laboratory, Berkeley, CA, USA
Phone: 510 486-4365; E-mail: mjbissell@lbl.gov
View this article at: http://www.jci.org/articles/view/63146?key=7749b0e936bffa996011
TITLE: Hematopoietic stem cells are acutely sensitive to Acd shelterin gene inactivation
AUTHOR CONTACT: Ivan Maillard
University of Michigan, Ann Arbor, MI, USA
Phone: 734-763-3599; Fax: 734-615-5493; E-mail: imaillar@umich.edu
View this article at: http://www.jci.org/articles/view/67871?key=ca7546ee3f58d0b2e096
TITLE: Embryonic exposure to excess thyroid hormone causes thyrotrope cell death
AUTHOR CONTACT: Ksenia Tonyushkina
Baystate Medical Center, Springfield, MA, USA
Phone: 413-794-3510; E-mail: ksenia.tonyushkina@bhs.org
View this article at: http://www.jci.org/articles/view/70038?key=4e70d4504e09ce632a0f
TITLE: Diverting T helper cell trafficking through increased plasticity attenuates autoimmune encephalomyelitis
AUTHOR CONTACT: Dorina Avram
Albany Medical College, Albany, NY, USA
Phone: 518-262-6731; E-mail: avramd@mail.amc.edu
View this article at: http://www.jci.org/articles/view/70103?key=9a540eeb2b0b19f8798b
TITLE: Combined SFK/MEK inhibition prevents metastatic outgrowth of dormant tumor cells
AUTHOR CONTACT: Jeff Green
National Cancer Institute, Potomac, MD, USA
Phone: 301-435-5193; Fax: 301-496-8709; E-mail: jegreen@nih.gov
View this article at: http://www.jci.org/articles/view/70259?key=f6260391d44effc936ab
TITLE: LRIG1 inhibits STAT3-dependent inflammation to maintain corneal homeostasis
AUTHOR CONTACT: Takahiro Nakamura
Kyoto Prefectural University of Medicine, Kyoto, , JPN
Phone: +81-75-251-5578; Fax: +81-75-251-5663; E-mail: tnakamur@koto.kpu-m.ac.jp
View this article at: http://www.jci.org/articles/view/71488?key=d1957df2c922a9a9a9fb
Provided by Journal of Clinical Investigation
