User profiles for R. Koyama

Ryuta Koyama

The University of Tokyo
Verified email at mol.fu-tokyo.ac.jp
Cited by 7399

Microglia states and nomenclature: A field at its crossroads

…, DA Hume, S Jung, H Kettenmann, J Kipnis, R Koyama… - Neuron, 2022 - cell.com
Microglial research has advanced considerably in recent decades yet has been constrained
by a rolling series of dichotomies such as "resting versus activated" and "M1 versus M2." …

The effects of microglia‐and astrocyte‐derived factors on neurogenesis in health and disease

T Araki, Y Ikegaya, R Koyama - European Journal of …, 2021 - Wiley Online Library
Hippocampal neurogenesis continues throughout life and has been suggested to play an
essential role in maintaining spatial cognitive function under physiological conditions. An …

[PDF][PDF] Microglia sculpt postnatal neural circuits in an activity and complement-dependent manner

…, AG Kautzman, R Koyama, AR Mardinly, R Yamasaki… - Neuron, 2012 - cell.com
Microglia are the resident CNS immune cells and active surveyors of the extracellular
environment. While past work has focused on the role of these cells during disease, recent …

Microglia in the pathogenesis of autism spectrum disorders

R Koyama, Y Ikegaya - Neuroscience research, 2015 - Elsevier
Proper synaptic pruning is essential for the development of functional neural circuits.
Impairments in synaptic pruning disrupt the excitatory versus inhibitory balance (E/I balance) of …

Ramucirumab plus erlotinib in patients with untreated, EGFR-mutated, advanced non-small-cell lung cancer (RELAY): a randomised, double-blind, placebo-controlled …

…, S Watanabe, N Nogami, T Ozaki, R Koyama… - The Lancet …, 2019 - thelancet.com
Background Dual blockade of the EGFR and VEGF pathways in EGFR-mutated metastatic
non-small-cell lung cancer (NSCLC) is supported by preclinical and clinical data, yet the …

Identification of a link between the tumour suppressor APC and the kinesin superfamily

T Jimbo, Y Kawasaki, R Koyama, R Sato, S Takada… - Nature cell …, 2002 - nature.com
The tumour suppressor gene adenomatous polyposis coli (APC) is mutated in sporadic and
familial colorectal tumours 1 , 2 , 3 . APC is involved in the proteasome-mediated …

Asef, a link between the tumor suppressor APC and G-protein signaling

Y Kawasaki, T Senda, T Ishidate, R Koyama… - Science, 2000 - science.org
The adenomatous polyposis coli gene (APC) is mutated in familial adenomatous polyposis
and in sporadic colorectal tumors. Here the APC gene product is shown to bind through its …

A novel myokine, secreted protein acidic and rich in cysteine (SPARC), suppresses colon tumorigenesis via regular exercise

…, K Sakuma, LP Hang, K Mizushima, Y Hirai, R Koyama… - Gut, 2013 - gut.bmj.com
… SPARC, was not significantly affected by a single bout of exercise, and resting state and
post-exercise change ratios of SPARC concentration and platelet counts were not correlated (R

[HTML][HTML] In vivo knockdown of pathogenic proteins via specific and nongenetic inhibitor of apoptosis protein (IAP)-dependent protein erasers (SNIPERs)

…, O Ujikawa, K Shimokawa, O Sano, R Koyama… - Journal of Biological …, 2017 - ASBMB
Many diseases, especially cancers, result from aberrant or overexpression of pathogenic
proteins. Specific inhibitors against these proteins have shown remarkable therapeutic effects, …

[PDF][PDF] Activity-dependent proteolytic cleavage of neuroligin-1

…, S Yokoshima, T Fukuyama, N Matsuki, R Koyama… - Neuron, 2012 - cell.com
Neuroligin (NLG), a postsynaptic adhesion molecule, is involved in the formation of synapses
by binding to a cognate presynaptic ligand, neurexin. Here we report that neuroligin-1 (…