Keiichi Ohshima

4.5k total citations · 1 hit paper
108 papers, 3.4k citations indexed

About

Keiichi Ohshima is a scholar working on Oncology, Molecular Biology and Cancer Research. According to data from OpenAlex, Keiichi Ohshima has authored 108 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Oncology, 42 papers in Molecular Biology and 39 papers in Cancer Research. Recurrent topics in Keiichi Ohshima's work include Cancer Genomics and Diagnostics (30 papers), Genetic factors in colorectal cancer (18 papers) and Genetic Neurodegenerative Diseases (15 papers). Keiichi Ohshima is often cited by papers focused on Cancer Genomics and Diagnostics (30 papers), Genetic factors in colorectal cancer (18 papers) and Genetic Neurodegenerative Diseases (15 papers). Keiichi Ohshima collaborates with scholars based in Japan, United States and Canada. Keiichi Ohshima's co-authors include Robert D. Wells, Seongman Kang, Massimo Pandolfo, Ken Yamaguchi, Laura Montermini, Tohru Mochizuki, Adam Jaworski, Keiichi Hatakeyama, Naoaki Sakamoto and Yuko Watanabe and has published in prestigious journals such as Journal of Biological Chemistry, Nature Genetics and Molecular Cell.

In The Last Decade

Keiichi Ohshima

100 papers receiving 3.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Let-7 MicroRNA Family Is Selectively Secreted into the Extracellular Environment via Exosomes in a Metastatic Gastric Cancer Cell Line

2010 501 citations Keiichi Ohshima, Keiichi Hatakeyama et al. profile →

Peers

Countries citing papers authored by Keiichi Ohshima

Since Specialization

Citations

This map shows the geographic impact of Keiichi Ohshima's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Keiichi Ohshima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Keiichi Ohshima more than expected).

Fields of papers citing papers by Keiichi Ohshima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Keiichi Ohshima. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Keiichi Ohshima. The network helps show where Keiichi Ohshima may publish in the future.

Co-authorship network of co-authors of Keiichi Ohshima

This figure shows the co-authorship network connecting the top 25 collaborators of Keiichi Ohshima. A scholar is included among the top collaborators of Keiichi Ohshima based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Keiichi Ohshima. Keiichi Ohshima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Genomic alterations in two patients with esophageal carcinosarcoma identified by whole genome sequencing: a case report 2024 ·Surgical Case Reports ·(unknown), Yasuhiro Tsubosa, Sumiko Ohnami, (unknown), Shuhei Mayanagi, Keiichi Ohshima, Kenichi Urakami, Shumpei Ohnami, Takeshi Nagashima, Ken Yamaguchi	0
2	Genetic and Immunological Characterization of Brain Metastases from Solid Cancers 2024 ·Anticancer Research ·Shoichi Deguchi, Yasuto Akiyama, Koichi Mitsuya, (unknown), (unknown), Akira Iizuka, Haruo Miyata, (unknown), Tadashi Ashizawa, Takeshi Nagashima, Kenichi Urakami, Keiichi Ohshima, Koji Muramatsu, Takashi Sugino, Yasuhisa Ohde, Yasuhiro Tsubosa, Seiichiro Nishimura, Ken Yamaguchi	1
3	Comprehensive sequencing of circulating tumour DNA in resectable pancreatic cancer 2024 ·British journal of surgery ·Taisuke Imamura, Ryo Ashida, Kenichi Urakami, Keiichi Ohshima, Katsuhiko Uesaka, Teiichi Sugiura, Yukiyasu Okamura, Katsuhisa Ohgi, Mihoko Yamada, Shimpei Otsuka, Takeshi Nagashima, Takashi Sugino, Yasuto Akiyama, Ken Yamaguchi	1
4	Tumor cell enrichment by tissue suspension improves sensitivity to copy number variation in diffuse gastric cancer with low tumor content 2024 ·Scientific Reports ·Keiichi Hatakeyama, Koji Muramatsu, Takeshi Nagashima, Hiroyuki Ichida, Yuichi Kawanishi, Ryutaro Fukumura, Keiichi Ohshima, Yuji Shimoda, Sumiko Ohnami, Shumpei Ohnami, Koji Maruyama, Akane Naruoka, (unknown), Kenichi Urakami, Yasuto Akiyama, Takashi Sugino, Ken Yamaguchi	0
5	Comparative analysis of tumor content estimation methods based on simu- lated tumor samples identified their impact on somatic variant detection in cancer whole genome sequencing 2023 ·Biomedical Research ·Takeshi Nagashima, Kenichi Urakami, Yuji Shimoda, Keiichi Ohshima, Masakuni Serizawa, Keiichi Hatakeyama, Sumiko Ohnami, Shumpei Ohnami, Akane Naruoka, Yasue Horiuchi, Akira Iizuka, Koji Maruyama, Yasuto Akiyama, Ken Yamaguchi	2
6	Risk factors for lateral lymph node metastasis based on the molecular profiling of rectal cancer 2023 ·Colorectal Disease ·(unknown), Hitoshi Hino, Keiichi Hatakeyama, Akio Shiomi, Hiroyasu Kagawa, Shoichi Manabe, Yusuke Yamaoka, Takeshi Nagashima, Keiichi Ohshima, Kenichi Urakami, Yasuto Akiyama, Akifumi Notsu, Yusuke Kinugasa, Ken Yamaguchi	1
7	Prognostic significance of tumor microenvironment assessed by machine learning algorithm in surgically resected non‐small cell lung cancer 2023 ·Cancer Reports ·Yukihiro Terada, Mitsuhiro Isaka, Akira Ono, Takuya Kawata, Masakuni Serizawa, Keita Mori, Koji Muramatsu, (unknown), Hirotsugu Kenmotsu, Keiichi Ohshima, Kenichi Urakami, Takeshi Nagashima, Masatoshi Kusuhara, Yasuto Akiyama, Takashi Sugino, Toshiaki Takahashi, Yasuhisa Ohde	0
8	Incidence and clinical significance of 491 known fusion genes in a large cohort of Japanese patients with colorectal cancer 2023 ·International Journal of Clinical Oncology ·(unknown), Hitoshi Hino, Keiichi Hatakeyama, Akio Shiomi, Hiroyasu Kagawa, Shoichi Manabe, Yusuke Yamaoka, Takeshi Nagashima, Keiichi Ohshima, Kenichi Urakami, Yasuto Akiyama, Ken Yamaguchi	1
9	A Primary Intraosseous Meningioma: A Rare Case of Malignancy with High Proliferative Ability 2023 ·Journal of Neurological Surgery Reports ·Yoshiki Sato, Koichi Mitsuya, Yuko Kakuda, Takuma Oishi, Shoichi Deguchi, Takashi Sugino, Yasuto Akiyama, Takeshi Nagashima, Kenichi Urakami, Yuji Shimoda, Keiichi Ohshima, Nakamasa Hayashi, Ken Yamaguchi	0
10	Comprehensive genetic characterization of rectal cancer in a large cohort of Japanese patients: differences according to tumor location 2022 ·Journal of Gastroenterology ·Hitoshi Hino, Akio Shiomi, Keiichi Hatakeyama, Hiroyasu Kagawa, Shoichi Manabe, Yusuke Yamaoka, Takeshi Nagashima, Keiichi Ohshima, Kenichi Urakami, Yasuto Akiyama, Ken Yamaguchi	4
11	Development of an Automatic Measurement Method for CD8 and PD-1 Positive T Cells Using Image Analysis Software 2021 ·Anticancer Research ·Haruo Miyata, Yasuto Akiyama, Akira Iizuka, Ryota Kondou, (unknown), (unknown), Kyoko Watanabe, Tadashi Ashizawa, Takeshi Nagashima, Kenichi Urakami, Keiichi Ohshima, Takuya Kawata, Koji Muramatsu, Akio Shiomi, (unknown), Takashi Sugino, Akifumi Notsu, Keita Mori, Ken Yamaguchi	3
12	Molecular classification of gastric cancer predicts survival in patients undergoing radical gastrectomy based on project HOPE 2021 ·Gastric Cancer ·(unknown), Keiichi Hatakeyama, Masanori Terashima, Takeshi Nagashima, Kenichi Urakami, Keiichi Ohshima, Akifumi Notsu, Takashi Sugino, Taisuke Yagi, Keiichi Fujiya, Satoshi Kamiya, Makoto Hikage, Yutaka Tanizawa, Etsuro Bando, Yae Kanai, Yasuto Akiyama, Ken Yamaguchi	18
13	A T-cell–engaging B7-H4/CD3-bispecific Fab-scFv Antibody Targets Human Breast Cancer 2019 ·Clinical Cancer Research ·Akira Iizuka, (unknown), Tadashi Ashizawa, Ryota Kondou, Keiichi Ohshima, Takashi Sugino, Koichi Mitsuya, Nakamasa Hayashi, Yoko Nakasu, Kouji Maruyama, Ken Yamaguchi, Yasuto Akiyama	61
14	Melanoma patient response to nivolumab treatment for metastatic lung lesions: Multi‐OMICS analysis in Project HOPE 2017 ·The Journal of Dermatology ·Yoshio Kiyohara, Shusuke Yoshikawa, Masaki Otsuka, Ryota Kondou, Akira Iizuka, (unknown), Keiichi Ohshima, Kenichi Urakami, Masatoshi Kusuhara, Takeshi Nagashima, Takashi Sugino, Ken Yamaguchi, Yasuto Akiyama	1
15	Integrated analysis of gene expression and copy number identified potential cancer driver genes with amplification-dependent overexpression in 1,454 solid tumors 2017 ·Scientific Reports ·Keiichi Ohshima, Keiichi Hatakeyama, Takeshi Nagashima, Yuko Watanabe, (unknown), (unknown), Tomomi Ide, Yuji Shimoda, (unknown), Sumiko Ohnami, Shumpei Ohnami, Masakuni Serizawa, Koji Maruyama, Yasuto Akiyama, Kenichi Urakami, Masatoshi Kusuhara, Tohru Mochizuki, Ken Yamaguchi	95
16	Germline and somatic genetic changes in multicentric tumors obtained from a patient with multiple endocrine neoplasia type 1 2017 ·Human Genome Variation ·Akane Naruoka, Sumiko Ohnami, Takeshi Nagashima, Masakuni Serizawa, Keiichi Ohshima, Shumpei Ohnami, Kenichi Urakami, Yasue Horiuchi, (unknown), Masato Abe, Takashi Nakajima, Teiichi Sugiura, Katsuhiko Uesaka, Masatoshi Kusuhara, Ken Yamaguchi	1
17	Frataxin overexpressing mice 2004 ·FEBS Letters ·Carlos J. Miranda, Miguel M. Santos, Keiichi Ohshima, (unknown), Jorge Sequeiros, Massimo Pandolfo	23
18	PACAP protects neuronal PC12 cells from the cytotoxicity of human prion protein fragment 106–126 2002 ·FEBS Letters ·Satomi Onoue, Keiichi Ohshima, Kosuke Endo, Takehiko Yajima, Kazuhisa Kashimoto	43
19	Sticky DNA 1999 ·Molecular Cell ·Naoaki Sakamoto, Paul D. Chastain, Paweł Parniewski, Keiichi Ohshima, Massimo Pandolfo, Jack D. Griffith, Robert D. Wells	249
20	CTG Triplet Repeats from Human Hereditary Diseases Are Dominant Genetic Expansion Products in Escherichia coli 1996 ·Journal of Biological Chemistry ·Keiichi Ohshima, Seongman Kang, Robert D. Wells	41

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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