No.	Year	Title	Author	Corresponding	Journal	Vol.	Pages
1	2013	Lysophosphatidylethanolamine utilizes LPA1 and CD97 in MDA-MB-231 breast cancer cells.	Park SJ, Lee KP, Kang S, Chung HY, Bae YS, Okajima F, and Im DS.	Im DS	Cell Singalling	25	2147-2154
2	2013	Oxidative stress potentially enhances FceRI-mediated leukotriene C4 release dependent on the late-phase increase of intracellular glutathione in mast cells.	Seki K, Hisada T, Kawata T, Kamide Y, Dobashi K, Yamada M, Mori M, Okajima F, Ishizuka T.	Ishizuka T	Biochem Biophys Res Commun	439	357-362
3	2013	Regulation of inflammation by extracellular acidification and proton-sensing GPCRs.	Okajima F	Okajima F	Cell Signalling	25	2263-2271
4	2013	Proton-sensing ovarian cancer G protein-coupled receptor 1 on dendritic cells is required for airway responses in a murine asthma model.	Aoki H, Mogi C, Hisada T, Nakakura T, Kamide Y, Ichimonji I, Tomura H, Tobo M, Sato K, Tsurumaki H, Dobashi K, Mori T, Harada A, Yamada M, Mori M, Ishizuka T, and Okajima F.	Okajima F	PLoS ONE	8	e79985
5	2014	Role of extracellular proton-sensing receptors in regulation of insulin secretion and pancreatic bcell functions.	Mogi C, Nakakura T, and Okajima F.	Okajima F	Endocr J	61	101-110
6	2014	Lipoprotein-associated lysolipid molecules are differentially involved in high-density lipoprotein- and its oxidized form-induced neurite remodeling in PC12 cells.	Sato K, Tobo M, Mogi C, Murata N, Kotake M, Kuwabara A, Im DS, and Okajima F.	Sato K and Okajima F	Neurochem International	68	38-47
7	2014	Inhibition of interleukin-1β production by extracellular acidification through the TDAG8｜cAMP pathway in mouse microglia.	Jin Y, Sato K, Ayaka Tobo, Mogi C, Tobo M, Murata N, Ishii S, Im DS, Okajima F	Sato K and Okajima F	J Neurochem	129	683-695
8	2014	Ionotropic and metabotropic proton-sensing receptors involved in airway inflammation in allergic asthma.	Aoki H, Mogi C, Okajima F.	Okajima F	Mediators of Inflammation	2014	ID712962
9	2014	Sphingosine 1-phosphate induced anti-atherogenic and atheroprotective M2 macrophage polarization through IL-4.	Park SJ, Lee KP, Kang S, Lee J, Sato K, Chung HY, Okajima F, Im DS	Im DS	Cellular Signalling	26	2249-2258
10	2014	Acidic pH increases cGMP accumulation through the OGR1/phospholipase C/Ca2+/neuronal NOS pathway in N1E-115 neuronal cells.	Kotake M, Sato K, Mogi C, Tobo M, Aoki H, Ishizuka T, Sunaga N, Imai H, Kaira K, Hisada T, Yamada M, Okajima F.	Okajima F	Cellular Signalling	26	2326-2332
11	2015	Extracellular acidification activates ovarian cancer G-protein-coupled receptor 1 and GPR4 homologs of zebra fish.	Mochimaru T, Azuma M, Oshima N, Ichijo Y, Satou K, Matsuda K, Asaoka Y, Nishina H, Nakakura T, Mogi C, Sato K, Okajima F, Tomura H.	Tomura H	Biochem Biophys Res Commun	457	493-499
12	2015	Characterization of Imidazopyridine Compounds as Negative Allosteric Modulators of Proton-Sensing GPR4 in Extracellular Acidification-Induced Responses.	Tobo A, Tobo M, Nakakura T, Ebara M, Tomura H, Mogi C, Im DS, Murata N, Kuwabara A, Ito S, Fukuda H, Arisawa M, Shuto S, Nakaya M, Kurose H, Sato K, Okajima F	Sato K and Okajima F	PloS One	10	e0129334
13	2015	Omega-3 fatty acids induce Ca(2+) mobilization responses in human colon epithelial cell lines endogenously expressing FFA4.	Kim JM, Lee KP, Park SJ, Kang S, Huang J, Lee JM, Sato K, Chung HY, Okajima F, Im DS	Im DS	Acta Pharmacol Sin	36	813-820
14	2015	Acidic environment augments FcεRI-mediated production of IL-6 and IL-13 in mast cells.	Kamide Y, Ishizuka T, Tobo M, Tsurumaki H, Aoki H, Mogi C, Nakakura T, Yatomi M, Ono A, Koga Y, Sato K, Hisada T, Dobashi K, Yamada M, Okajima F	Kamide Y	Biochem Biophys Res Commun	464	949-955
15	2015	Angiotensin II Reduces Lipoprotein Lipase Expression in Visceral Adipose Tissue via Phospholipase C β4 Depending on Feeding but Increases Lipoprotein Lipase Expression in Subcutaneous Adipose Tissue via c-Src.	Uchiyama T, Tomono S, Sato K, Nakamura T, Kurabayashi M, Okajima F	Uchiyama T	PloS One	10	e0139638
16	2015	Protective Role of Proton-Sensing TDAG8 in Lipopolysaccharide-Induced Acute Lung Injury.	Tsurumaki H, Mogi C, Aoki-Saito H, Tobo M, Kamide Y, Yatomi M, Sato K, Dobashi K, Ishizuka T, Hisada T, Yamada M, Okajima F	Tsurumaki H	Int J Mol Sci	16	28931-28942
17	2016	Two zebrafish G2A homologs activate multiple intracellular signaling pathways in acidic environment.	Ichijo Y, Mochimaru Y, Azuma M, Satou K, Negishi J, Nakakura T, Oshima N, Mogi C, Sato K, Matsuda K, Okajima F, Tomura H	Tomura H	Biochem Biophys Res Commun	469	81-86