Volume 507 Number 7492

Editorials

精神神経疾患の生物学的機序に焦点が集まることで、科学的な治療法開発につながると考えられるため、これは歓迎すべき動きだ。

What lies beneath p.273

A focus on specific biological targets rather than constellations of symptoms heralds a more scientific approach to the treatment of neuropsychiatric disorders.

doi: 10.1038/507273a

1,000ドルでのゲノム解読の実現は、現実的な目標設定が迅速な技術革新を助けることを示す良い教訓だ。

How to get ahead p.273

The success of the $1,000 genome programme offers lessons for fostering innovation.

doi: 10.1038/507273b

配信を始めて数か月が経過する「Nature PastCast」は、楽しめるコンテンツであることはもちろんのこと、歴史を次世代に役立ててもらうための企画である。

Past wisdom p.274

The recent Nature PastCast series is instructive as well as entertaining.

doi: 10.1038/507274a

News

南極の望遠鏡で捉えた重力波から、ビッグバン後のインフレーションを裏付ける証拠が。

Telescope captures view of gravitational waves p.281

Images of the infant Universe reveal evidence for rapid inflation after the Big Bang.

doi: 10.1038/507281a

理化学研究所の調査でSTAP細胞論文に複数の不備が見つかり、さらに詳しい調査を継続へ。

Stem-cell method faces fresh questions p.283

Papers describing acid-bath technique under more scrutiny after institute’s investigation finds errors in methodology.

doi: 10.1038/507283a

全米科学財団(NSF)の新理事長に、パデュー大学前学長のフランス・コルドバ氏が。

Incoming NSF director faces challenges in Congress p.285

Former Purdue University president France Córdova inherits an agency at a crossroads.

doi: 10.1038/507285a

生態系修復の試みとして、干上がったコロラド川デルタへ再び水を。

Water returns to arid Colorado River delta p.286

US–Mexico agreement paves the way for a rare environmental test.

doi: 10.1038/507286a

NIHが、精神疾患研究について、その生物学的機序の解明を目指した研究に対してのみ助成を行うという方向性を。

NIH rethinks psychiatry trials p.288

Mental-health division will no longer fund research aiming to relieve symptoms without probing underlying causes.

doi: 10.1038/507288a

News Features

神経科学:脳をチューニング

Neuroscience: Tuning the brain p.290

パーキンソン病などの治療に有効な脳深部電気刺激法(DBS)が、他の神経回路の障害に関する研究にも役立ち始めている。

doi: 10.1038/507290a

技術:1,000ドルゲノム

Technology: The $1,000 genome p.294

米政府のユニークな計画によって、ゲノム塩基配列解読のコストが、期待通りのレベルにまで下がった。

doi: 10.1038/507294a

News & Views

宇宙科学:地球近傍の宇宙に見られる縞模様

Space science: Near-Earth space shows its stripes p.308

地球の磁場中にある電子の分布は、電子のエネルギーと高度の関数として縞状の強度パターンを示すことが多い。いくつかの予想外に重要な影響を取り入れたモデルによって、今回この特徴が説明された。

doi: 10.1038/507308a

遺伝学:肥満の犯人との距離を詰める

Genetics: Closing the distance on obesity culprits p.309

遺伝子FTO中のタンパク質をコードしていない領域中にある遺伝学的変異が肥満に関係していることが分かった。この領域の変異は、FTO自体ではなく、遠く離れた所にあるIRX3遺伝子の発現に影響を及ぼしている。

doi: 10.1038/nature13212

技術:レーダーの未来を明るくするフォトニクス

Technology: Photonics illuminates the future of radar p.310

完全にフォトニクスだけに基づくコヒーレントなレーダーシステムが初めて実証されたことは、無線周波数信号の生成と測定にフォトニクスの手法を使うことが、ソフトウエアレーダーシステム(software-defined radar system)の開発を促進する可能性を示している。

doi: 10.1038/507310a

細胞生物学:細胞死を解き明かす

Cell biology: The disassembly of death p.312

アポトーシスとして知られる細胞死プログラムが開始されると、細胞は崩壊して膜に包まれた複数の断片になる。この過程がパネキシン1というタンパク質によって制御されていること、また抗菌薬の1つによって脱調節されることが明らかになった。

doi: 10.1038/nature13213

骨の生物学:若返りに働く血管

Bone biology: Vessels of rejuvenation p.313

骨の血管中に存在している特殊化した内皮細胞集団とそのシグナル伝達経路が明らかにされ、血管構造が骨形成に関わる仕組みが示された。

doi: 10.1038/nature13210

Articles

がんゲノミクス:尿路上皮膀胱がんの包括的な分子特性解析

Comprehensive molecular characterization of urothelial bladder carcinoma OPEN p.315

This paper reports integrative molecular analyses of urothelial bladder carcinoma at the DNA, RNA, and protein levels performed as part of The Cancer Genome Atlas project; recurrent mutations were found in 32 genes, including those involved in cell-cycle regulation, chromatin regulation and kinase signalling pathways; chromatin regulatory genes were more frequently mutated in urothelial carcinoma than in any other common cancer studied so far.

doi: 10.1038/nature12965

発生生物学:骨中の特定の血管サブタイプによる血管新生と骨形成の連結

Coupling of angiogenesis and osteogenesis by a specific vessel subtype in bone p.323

Bone homeostasis and repair declines with ageing and the mechanisms regulating the relationship between bone growth and blood vessel formation have remained unknown; this mouse study identifies the endothelial cells that promote the formation of new bone, a small microvessel subtype that can be identified by high CD31 and high Emcn expression.

doi: 10.1038/nature13145

創薬:抗菌薬、パネキシンチャネルとアポトーシス間の予想外のつながり

Unexpected link between an antibiotic, pannexin channels and apoptosis p.329

The pannexin 1 channel on the plasma membrane of apoptotic cells mediates the release of find-me molecular signals to attract phagocytic cells for clearance of the apoptotic cells; here the quinolone antibiotic trovafloxacin is identified as a direct inhibitor of pannexin 1, which results in dysregulated fragmentation of apoptotic cells and may partly explain quinolone toxicity.

doi: 10.1038/nature13147

Letters

宇宙:アンドロメダ座IIにおける2つの矮小銀河が合体した残骸

The remnant of a merger between two dwarf galaxies in Andromeda II p.335

At the lowest galactic mass scales, evidence of a merger between two galaxies is provided by the kinematic detection of a stellar stream — indicative of an accretion event — in the dwarf spheroidal galaxy Andromeda II, one of the satellite galaxies of Andromeda.

doi: 10.1038/nature12995

磁気圏物理学:地球の自転で駆動される放射線帯内帯の「縞模様」

Rotationally driven ‘zebra stripes’ in Earth’s inner radiation belt p.338

The distributions of energetic electrons across the entire spatial extent of Earth’s inner radiation belt are found to be organized in regular, highly structured and unexpected ‘zebra stripes’, produced by Earth’s rotation.

doi: 10.1038/nature13046

フォトニクス:完全にフォトニクスに基づくコヒーレントレーダーシステム

A fully photonics-based coherent radar system p.341

The next generation of radar systems must be photonic to obtain frequency flexibility and improved performance; here both generation and detection of radio signals are demonstrated in a successful field trial of a photonic-based radar system using aeroplanes.

doi: 10.1038/nature13078

環境化学:地質学的時間スケールでのCO2供給源としての硫化物の酸化と炭酸塩の溶解

Sulphide oxidation and carbonate dissolution as a source of CO2 over geological timescales p.346

Sulphide oxidation coupled to carbonate dissolution can provide a transient source of carbon dioxide to Earth’s atmosphere and so balance the Cenozoic increase in carbon dioxide consumption by silicate weathering, reconciling this increase with the need for mass balance in the long-term carbon cycle.

doi: 10.1038/nature13030

進化:メラノソームの進化は羽毛恐竜で起こった生理的特性の重要な変化を示唆する

Melanosome evolution indicates a key physiological shift within feathered dinosaurs p.350

Sampling of extant and fossil amniotes reveals that the diversity of melanosome morphologies increased sharply around the time of the origin of pinnate feathers in maniraptoran dinosaurs (the lineage leading to birds) and independently in mammals; lizard, turtle and crocodilian skin as well as archosaur filamentous body covering shows a limited diversity of melanosome forms, a pattern consistent with convergent changes in the melanocortin system of endothermic animals.

doi: 10.1038/nature12973

進化遺伝学:現生人類のゲノム内にあるネアンデルタール人由来配列の全体像

The genomic landscape of Neanderthal ancestry in present-day humans p.354

In the modern human genome, elevated Neanderthal ancestry is found at genes affecting keratin filaments, suggesting that gene flow with Neanderthals helped modern humans to adapt to non-African environments; deficiencies of Neanderthal ancestry are also found, particularly on the X chromosome and in genes expressed highly in testes, suggesting that some Neanderthal mutations were not tolerated on a modern human genetic background as they reduced male fertility.

doi: 10.1038/nature12961

神経科学:方向選択性網膜神経節細胞と一次視覚皮質とを結ぶ専用回路

A dedicated circuit links direction-selective retinal ganglion cells to the primary visual cortex p.358

Using a combination of viral-tracing and in vivo imaging techniques, the authors show that there are several parallel pathways in the mouse visual system and that directional and orientation selectivity in the cortex may arise from the specialized tuning of retinal circuits.

doi: 10.1038/nature12989

細胞:in vivoでのライブ画像化によって単一幹細胞レベルで明らかにされた腸陰窩恒常性

Intestinal crypt homeostasis revealed at single-stem-cell level by in vivo live imaging p.362

Long-term in vivo imaging of Confetti-labelled Lgr5-expressing intestinal stem cells shows that a dynamically heterogeneous cell population is able to function long-term as an equipotent stem-cell pool.

doi: 10.1038/nature12972

免疫:IL-35産生B細胞は自己免疫疾患と感染症の際の免疫における重要な調節因子である

IL-35-producing B cells are critical regulators of immunity during autoimmune and infectious diseases p.366

B cells can secrete IL-35 upon activation, and subsequently contribute negatively to the regulation of immunity, such as T-cell-mediated autoimmunity or anti-microbial immunity, and a characterization of these cells raises new questions about possible independent roles for IL-10- and IL-35-expressing plasma cells as regulatory cells.

doi: 10.1038/nature12979

分子生物学:FTO内の肥満関連バリアントは、IRX3と長距離にわたる機能的な関連を形成する

Obesity-associated variants within FTO form long-range functional connections with IRX3 p.371

Obesity-associated noncoding sequences within FTO are functionally connected with IRX3, and long-range enhancers in this region recapitulate aspects of IRX3 expression, suggesting that the obesity-associated interval is part of IRX3 regulation; Irx3-deficient mice have lower body weight and are resistant to diet-induced obesity, suggesting IRX3 as a novel determinant of body mass and composition.

doi: 10.1038/nature13138

発生生物学:内皮のNotch活性は骨での血管形成と骨形成を促進する

Endothelial Notch activity promotes angiogenesis and osteogenesis in bone p.376

Blood vessel growth in bone is revealed to require Notch signalling and involve a specialized form of angiogenesis that does not involve endothelial sprouts.

doi: 10.1038/nature13146

分子生物学:2通りの独立した転写開始コードが脊椎動物のコアプロモーター上に重複して存在する

Two independent transcription initiation codes overlap on vertebrate core promoters p.381

The transcription start sites used during the maternal to zygotic transition in zebrafish are mapped, revealing that the transition is characterized by a switch between two different sequence signs to guide transcription initiation, which often co-exist in core promoters.

doi: 10.1038/nature12974

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