Table of contents


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Editorial

In the land of the monolingual p975

doi:10.1038/nm0909-975

Translating a basic finding into a new therapy requires us to speak many languages—scientific, clinical, legal and financial. Yet most of us are hopelessly 'monolingual', a limitation that substantially slows translational research. Steps have been taken to address this problem, but a lot remains to be done.


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News

A change is in the wind as 'adaptive' clinical trials catch on p977

Stu Hutson

doi:10.1038/nm0909-977


Pandemic vaccine enters clinical trials p978

Cassandra Willyard

doi:10.1038/nm0909-978a


New plan seeks to accelerate African diagnostic capacity p978

Melinda Wenner

doi:10.1038/nm0909-978b


Sealants get specific p978

Nayanah Siva

doi:10.1038/nm0909-978c


New technologies promise safer sex for women p979

Mike May

doi:10.1038/nm0909-979a


Growing pains plague children's health study p979

Melinda Wenner

doi:10.1038/nm0909-979b


News in brief pp980 - 981

doi:10.1038/nm0909-980


Straight talk with...Ian Lipkin pp982 - 983

Erica Westly

doi:10.1038/nm0909-982

Ian Lipkin, director of the Center for Infection and Immunity at Columbia University's Mailman School of Public Health, has helped identify close to 200 new viruses so far. Erica Westly spoke with Lipkin about how the viral discovery techniques he uses could help prevent future viral disease outbreaks, from swine flu to the unknown.


Boosting our best shot pp984 - 988

Charlotte Schubert

doi:10.1038/nm0909-984

Vaccines work by training the immune system to target pathogens, but many types of shots need added substances called adjuvants to elicit a robust response. Despite the power of adjuvants, only one, called alum, is approved in the US. Charlotte Schubert looks at recent discoveries that could translate into a wider range of adjuvants and perhaps help provide future protection against diseases ranging from malaria to H1N1 'swine' flu.


Illuminating alum p985

Charlotte Schubert

doi:10.1038/nm0909-985


Swine flu agitates the adjuvant debate pp986 - 987

Charlotte Schubert

doi:10.1038/nm0909-986


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Correspondence

Mouse fertility is not dependent on the CREB coactivator Crtc1 pp989 - 990

Lionel Breuillaud, Olivier Halfon, Pierre J Magistretti, François P Pralong & Jean-René Cardinaux

doi:10.1038/nm0909-989


Reply to: "Mouse fertility is not dependent on the CREB coactivator Crtc1" p991

Judith Altarejos, Naomi Goebel, Mike Conkright, Hiroshi Inoue, Jianjin Xie, Carlos Arias, Paul Sawchenko & Marc Montminy

doi:10.1038/nm0909-991a


Innovating for impact: The Affordable Medicines Facility-malaria (AMFm) p991

Olusoji Adeyi & Rifat Atun

doi:10.1038/nm0909-991b


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Book Review

The vaccine-autism controversy p992

Daniel Geschwind reviews Autism's False Prophets: Bad Science, Risky Medicine, and the Search for a Cure by Paul A. Offit

doi:10.1038/nm0909-992


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News and Views

Blocking the path of lymphatic vessels pp993 - 994

Mihaela Skobe & Reza Dana

doi:10.1038/nm0909-993

Identification of an endogenous inhibitor of lymphatic vessel formation provides a glimpse at how lymphatic vessel growth is restrained (pages 1023–1030). The findings might be exploited to lower transplant rejection rates.

See also: Article by Albuquerque et al.


Two sides to cilia in cancer pp994 - 996

Rune Toftgård

doi:10.1038/nm0909-994

The primary cilium can keep cancer at bay, or it can instigate tumor development, according to studies in mice (pages 1055–1061 and 1062–1065). The outcome depends on the nature of the initiating event, which involves signaling through the Hedgehog pathway.

See also: Letter by Wong et al. | Letter by Han et al.


Connecting obesity, aging and diabetes pp996 - 997

Rexford S. Ahima

doi:10.1038/nm0909-996

Obesity accelerates the aging of adipose tissue, a process only now beginning to come to light at the molecular level. Experiments in mice suggest that obesity increases the formation of reactive oxygen species in fat cells, shortens telomeres—and ultimately results in activation of the p53 tumor suppressor, inflammation and the promotion of insulin resistance (pages 1082–1087).

See also: Letter by Minamino et al.


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Community Corner

Cardiovascular biomarker questioned p998

doi:10.1038/nm0909-998


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Between Bedside and Bench

A safer stem cell: on guard against cancer pp999 - 1001

Rahul Jandial & Evan Y Snyder

doi:10.1038/nm0909-999

Before stem cell therapies become mainstream, several hurdles must be overcome. One challenge is developing air-tight approaches to assure that stem cell transplantation does not give rise to tumors. Another is finding safe ways to induce pluripotency in adult stem cells, which can then be used for transplantation. In Bedside to Bench, Evan Snyder and Rahul Jandial discuss the risks of tumorigenesis in stem cell therapies, and, in Bench to Bedside, Laura Clarke and Derek van der Kooy examine new ways to induce pluripotency.


A safer stem cell: inducing pluripotency pp1001 - 1002

Laura Clarke & Derek van der Kooy

doi:10.1038/nm0909-1001


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Research Highlights

Research Highlights pp1004 - 1005

doi:10.1038/nm0909-1004


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Commentary

The advancement of translational medicine—from regional challenges to global solutions pp1006 - 1009

Salvatore Albani & Berent Prakken

doi:10.1038/nm0909-1006


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Perspective

Cancer stem cells: mirage or reality? pp1010 - 1012

Piyush B Gupta, Christine L Chaffer & Robert A Weinberg

doi:10.1038/nm0909-1010


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Brief Communication

Involvement of interleukin-21 in the epidermal hyperplasia of psoriasis pp1013 - 1015

Roberta Caruso, Elisabetta Botti, Massimiliano Sarra, Maria Esposito, Carmine Stolfi, Laura Diluvio, Maria Laura Giustizieri, Valentina Pacciani, Annamaria Mazzotta, Elena Campione, Thomas T MacDonald, Sergio Chimenti, Francesco Pallone, Antonio Costanzo & Giovanni Monteleone

doi:10.1038/nm.1995

Giovanni Monteleone and his colleagues show that the T cell-derived cytokine interleukin-21 is a new potential therapeutic target for psoriasis. Interleukin-21 seems to act directly on keratinocytes, stimulating them to proliferate and causing epidermal hyperplasia.


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Articles

A human colonic commensal promotes colon tumorigenesis via activation of T helper type 17 T cell responses pp1016 - 1022

Shaoguang Wu, Ki-Jong Rhee, Emilia Albesiano, Shervin Rabizadeh, Xinqun Wu, Hung-Rong Yen, David L Huso, Frederick L Brancati, Elizabeth Wick, Florencia McAllister, Franck Housseau, Drew M Pardoll & Cynthia L Sears

doi:10.1038/nm.2015

Enterotoxigenic Bacteroides fragilis, a bacterium from the intestinal flora, may promote colon tumor formation through a pathway that involves Stat3 expression and T helper type 17 immune responses.


Alternatively spliced vascular endothelial growth factor receptor-2 is an essential endogenous inhibitor of lymphatic vessel growth pp1023 - 1030

Romulo J C Albuquerque, Takahiko Hayashi, Won Gil Cho, Mark E Kleinman, Sami Dridi, Atsunobu Takeda, Judit Z Baffi, Kiyoshi Yamada, Hiroki Kaneko, Martha G Green, Joe Chappell, Jörg Wilting, Herbert A Weich, Satoru Yamagami, Shiro Amano, Nobuhisa Mizuki, Jonathan S Alexander, Martha L Peterson, Rolf A Brekken, Masanori Hirashima, Seema Capoor, Tomohiko Usui, Balamurali K Ambati & Jayakrishna Ambati

doi:10.1038/nm.2018

Although endogenous inhibitors of blood vessel growth have been studied extensively, specific inhibitors of lymphatic vessel growth have not been identified. Albuquerque et al. now identify truncated, secreted versions of mouse and human VEGFR-2 receptors generated by alternative splicing. The mouse protein acts as an endogenous inhibitor of lymphatic vessel growth in the cornea and skin, and its administration had therapeutic effects in mouse models of corneal injury and transplantation.

See also: News and Views by Skobe & Dana


Pericyte contraction induced by oxidative-nitrative stress impairs capillary reflow despite successful opening of an occluded cerebral artery pp1031 - 1037

Muge Yemisci, Yasemin Gursoy-Ozdemir, Atay Vural, Alp Can, Kamil Topalkara & Turgay Dalkara

doi:10.1038/nm.2022

Ischemia causes pericytes on brain microvessels to contract, obstructing erythrocyte transit even after blood flow is restored. This contraction, which depends on the production of oxygen and nitrogen radicals, represents a novel pathophysiological mechanism in stroke.


A granulocyte-macrophage colony–stimulating factor and interleukin-15 fusokine induces a regulatory B cell population with immune suppressive properties pp1038 - 1045

Moutih Rafei, Jeremy Hsieh, Simone Zehntner, MengYang Li, Kathy Forner, Elena Birman, Marie-Noëlle Boivin, Yoon Kow Young, Claude Perreault & Jacques Galipeau

doi:10.1038/nm.2003

Suppression of the immune system could block autoimmune disease pathogenesis. Here Jacques Galipeau and his colleagues report that a fusion protein of two cytokines can induce immunosuppressive regulatory B cells. Transferring these cells into a mouse model of multiple sclerosis reduces disease in the mice.


Impaired Wnt–beta-catenin signaling disrupts adult renal homeostasis and leads to cystic kidney ciliopathy pp1046 - 1054

Madeline A Lancaster, Carrie M Louie, Jennifer L Silhavy, Louis Sintasath, Marvalyn DeCambre, Sanjay K Nigam, Karl Willert & Joseph G Gleeson

doi:10.1038/nm.2010

Canonical Wnt signaling is known to be crucial in embryonic organ development. Joseph Gleeson and his colleagues now report that it is also important in the adult homeostasis of the kidney, especially after injury, and that disruption of this signaling pathway results in cystic kidney disease.


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Letters

Primary cilia can both mediate and suppress Hedgehog pathway–dependent tumorigenesis pp1055 - 1061

Sunny Y Wong, Allen D Seol, Po-Lin So, Alexandre N Ermilov, Christopher K Bichakjian, Ervin H Epstein Jr, Andrzej A Dlugosz & Jeremy F Reiter

doi:10.1038/nm.2011

These two studies show that primary cilia can either mediate or suppress tumorigenesis in models of basal cell carcinoma and medulloblastoma, respectively, depending on the nature of the initial oncogenic event (pages 994–996) and (pages 1062–1065).

See also: News and Views by Toftgård | Letter by Han et al.


Dual and opposing roles of primary cilia in medulloblastoma development pp1062 - 1065

Young-Goo Han, Hong Joo Kim, Andrzej A Dlugosz, David W Ellison, Richard J Gilbertson & Arturo Alvarez-Buylla

doi:10.1038/nm.2020

These two studies show that primary cilia can either mediate or suppress tumorigenesis in models of basal cell carcinoma and medulloblastoma, respectively, depending on the nature of the initial oncogenic event (pages 994–996) and (pages 1055–1061).

See also: News and Views by Toftgård | Letter by Wong et al.


Interferon regulatory factor-8 regulates bone metabolism by suppressing osteoclastogenesis pp1066 - 1071

Baohong Zhao, Masamichi Takami, Atsushi Yamada, Xiaogu Wang, Takako Koga, Xiaoyu Hu, Tomohiko Tamura, Keiko Ozato, Yongwon Choi, Lionel B Ivashkiv, Hiroshi Takayanagi & Ryutaro Kamijo

doi:10.1038/nm.2007

Dysregulation of osteoclasts, the cells that chew up bone, can lead to severe bone loss. Although many positive regulators of the differentiation of this cell type have been identified, few negative regulators have. Now, Masamichi Takami and colleagues have identified IRF-8 as an inhibitor of osteoclast formation and explore its role in disease.


Syndecan-4 regulates ADAMTS-5 activation and cartilage breakdown in osteoarthritis pp1072 - 1076

Frank Echtermeyer, Jessica Bertrand, Rita Dreier, Ingmar Meinecke, Katja Neugebauer, Martin Fuerst, Yun Jong Lee, Yeong Wook Song, Christine Herzog, Gregor Theilmeier & Thomas Pap

doi:10.1038/nm.1998

The degenerative joint disease osteoarthritis is known to involve the activation of the protease ADAMTS-5. Now, Frank Echtermeyer and his colleagues have shown that the transmembrane proteoglycan syndecan-4 is responsible for this activation. They also show that genetic deletion of syndecan-4, or inhibition with a blocking antibody, reduces disease progression in a mouse model.


NADPH oxidase-4 mediates myofibroblast activation and fibrogenic responses to lung injury pp1077 - 1081

Louise Hecker, Ragini Vittal, Tamara Jones, Rajesh Jagirdar, Tracy R Luckhardt, Jeffrey C Horowitz, Subramaniam Pennathur, Fernando J Martinez & Victor J Thannickal

doi:10.1038/nm.2005

The mechanisms that lead to idiopathic pulmonary fibrosis, or lung scarring, is not clear. Victor Thannickal and his colleagues have now provided further insight by showing that induction of NOX4, an enzyme that creates reactive oxygen species, is required for the progression of the disease. Their findings suggest NOX4 as a potential target to treat this common ailment that currently has no proven treatment options.


A crucial role for adipose tissue p53 in the regulation of insulin resistance pp1082 - 1087

Tohru Minamino, Masayuki Orimo, Ippei Shimizu, Takeshige Kunieda, Masataka Yokoyama, Takashi Ito, Aika Nojima, Akira Nabetani, Yuichi Oike, Hisahiro Matsubara, Fuyuki Ishikawa & Issei Komuro

doi:10.1038/nm.2014

A role for cell senescence and p53 in the development of insulin resistance (or prediabetes) has been obscure. Issei Komuro and colleagues now show that premature cell senescence occurs in the adipose tissue of obese mice and humans and that genetic deficiency of p53 is sufficient to prevent insulin resistance in mouse models of obesity, suggesting a new target to treat diabetes.

See also: News and Views by Ahima


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Technical Report

A rapid and efficient single-cell manipulation method for screening antigen-specific antibody–secreting cells from human peripheral blood pp1088 - 1092

Aishun Jin, Tatsuhiko Ozawa, Kazuto Tajiri, Tsutomu Obata, Sachiko Kondo, Koshi Kinoshita, Shinichi Kadowaki, Kazuo Takahashi, Toshiro Sugiyama, Hiroyuki Kishi & Atsushi Muraguchi

doi:10.1038/nm.1966

Jin and colleagues introduce a new chip-based system for the rapid identification and isolation of single antigen-specific antibody–secreting cells from human peripheral blood lymphocytes. The approach can be used to detect antibody-secreting cells for multiple antigens on the same chip and should have advantages over current technologies for isolating and producing human monoclonal antibodies of clinical significance.


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Erratum

Erratum: GOAT links dietary lipids with the endocrine control of energy balance p1093

Henriette Kirchner, Jesus A Gutierrez, Patricia J Solenberg, Paul T Pfluger, Traci A Czyzyk, Jill A Willency, Annette Schürmann, Hans-Georg Joost, Ronald J Jandacek, John E Hale, Mark L Heiman & Matthias H Tschöp

doi:10.1038/nm0909-1093a


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Corrigendum

Corrigendum: Aldosterone impairs vascular reactivity by decreasing glucose-6-phosphate dehydrogenase activity p1093

Jane A Leopold, Aamir Dam, Bradley A Maron, Anne W Scribner, Ronglih Liao, Diane E Handy, Robert C Stanton, Bertram Pitt & Joseph Loscalzo

doi:10.1038/nm0909-1093b


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