Masami Okabe

4.4k total citations · 1 hit paper
101 papers, 3.6k citations indexed

About

Masami Okabe is a scholar working on Molecular Biology, Oncology and Organic Chemistry. According to data from OpenAlex, Masami Okabe has authored 101 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Molecular Biology, 29 papers in Oncology and 24 papers in Organic Chemistry. Recurrent topics in Masami Okabe's work include Cancer therapeutics and mechanisms (22 papers), Bioactive Compounds and Antitumor Agents (14 papers) and Porphyrin Metabolism and Disorders (12 papers). Masami Okabe is often cited by papers focused on Cancer therapeutics and mechanisms (22 papers), Bioactive Compounds and Antitumor Agents (14 papers) and Porphyrin Metabolism and Disorders (12 papers). Masami Okabe collaborates with scholars based in Japan, United States and Singapore. Masami Okabe's co-authors include Donna M. Huryn, Shiro Akinaga, Katsushige Gomi, Masaru Tada, Tatsuya Tamaoki, Makoto Morimoto, Tadashi Ashizawa, Kayo Nomura, Ruen Chu Sun and Kenneth W. Foster and has published in prestigious journals such as Nature, Chemical Reviews and Proceedings of the National Academy of Sciences.

In The Last Decade

Masami Okabe

101 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.

AIDS-driven nucleoside chemistry.

1992 492 citations Masami Okabe et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Masami Okabe Japan	31	2.0k	1.3k	763	438	341	101	3.6k
George D. Hartman United States	40	2.5k 1.3×	1.7k 1.3×	508 0.7×	600 1.4×	221 0.6×	183	5.4k
Krzysztof Krajewski United States	34	3.9k 1.9×	1.2k 0.9×	809 1.1×	538 1.2×	96 0.3×	103	5.7k
Juswinder Singh United States	31	3.1k 1.5×	1.3k 1.0×	791 1.0×	155 0.4×	155 0.5×	57	4.9k
Robert S. McDowell United States	28	2.8k 1.4×	969 0.7×	563 0.7×	81 0.2×	166 0.5×	44	4.3k
Daniel Zaharevitz United States	32	2.2k 1.1×	1.1k 0.8×	1.2k 1.6×	117 0.3×	181 0.5×	51	4.0k
Rick Gussio United States	33	1.9k 0.9×	1.1k 0.9×	927 1.2×	235 0.5×	175 0.5×	70	3.6k
Luciana Marinelli Italy	43	3.1k 1.5×	1.2k 0.9×	912 1.2×	294 0.7×	223 0.7×	164	5.1k
Adrian L. Smith United States	31	1.6k 0.8×	1.8k 1.4×	365 0.5×	185 0.4×	54 0.2×	56	3.8k
Gordon W. Rewcastle New Zealand	35	2.4k 1.2×	2.4k 1.8×	1.2k 1.6×	50 0.1×	70 0.2×	107	4.7k
Olli T. Pentikäinen Finland	32	1.5k 0.8×	439 0.3×	216 0.3×	260 0.6×	116 0.3×	100	3.1k

Countries citing papers authored by Masami Okabe

Since Specialization

Citations

This map shows the geographic impact of Masami Okabe'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 Masami Okabe with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masami Okabe more than expected).

Fields of papers citing papers by Masami Okabe

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masami Okabe. 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 Masami Okabe. The network helps show where Masami Okabe may publish in the future.

Co-authorship network of co-authors of Masami Okabe

This figure shows the co-authorship network connecting the top 25 collaborators of Masami Okabe. A scholar is included among the top collaborators of Masami Okabe 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 Masami Okabe. Masami Okabe 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

Takahashi, Takeshi, et al.. (1999). Antitumor activity of 2-chloro-9-(2-deoxy-2-fluoro-β-D-arabinofuranosyl) adenine, a novel deoxyadenosine analog, against human colon tumor xenografts by oral administration. Cancer Chemotherapy and Pharmacology. 43(3). 233–240. 31 indexed citations

Tare, Nadine S., Tomoaki Inoue, Motoo Yamasaki, et al.. (1999). Relationship between molecular mass and duration of activity of polyethylene glycol conjugated granulocyte colony-stimulating factor mutein. Experimental Hematology. 27(3). 425–432. 69 indexed citations

Ashizawa, Tadashi, Kenji Kawashima, Yutaka Kanda, et al.. (1999). Antitumor activity of KF22678, a novel thioester derivative of leinamycin. Anti-Cancer Drugs. 10(9). 829–836. 28 indexed citations

Akiyama, Tadakazu, Makiko Shimizu, Masami Okabe, Tatsuya Tamaoki, & Shiro Akinaga. (1999). Differential effects of UCN-01, staurosporine and CGP 41 251 on cell cycle progression and CDC2/cyclin B1 regulation in A431 cells synchronized at M phase by nocodazole. Anti-Cancer Drugs. 10(1). 67–78. 36 indexed citations

Kanda, Yutaka, Tadashi Ashizawa, Yutaka Saitoh, et al.. (1998). Synthesis and antitumor activity of leinamycin derivatives: Modifications of C-8 hydroxy and C-9 keto groups. Bioorganic & Medicinal Chemistry Letters. 8(8). 909–912. 19 indexed citations

Akinaga, Shiro, et al.. (1998). The relationship between the antitumor activity and the ribonucleotide reductase inhibitory activity of (E )-2?? -deoxy-2?? -(fluoromethylene) cytidine, MDL 101,731. Anti-Cancer Drugs. 9(7). 653–657. 27 indexed citations

Ashizawa, Tadashi, Akihiko Okamoto, Masami Okabe, et al.. (1995). Characteristics of the antitumor activity of M-16 and M-18, major metabolites of a new mitomycin C derivative KW-2149, in mice. Anti-Cancer Drugs. 6(6). 763–770. 5 indexed citations

Okamoto, Akihiko, Akira Asai, Hiromitsu Saito, Masami Okabe, & Katsushige Gomi. (1994). Differential Effect of Duocarmycin A and Its Novel Derivative DU‐86 on DNA Strand Breaks in HeLa S₃ Cells. Japanese Journal of Cancer Research. 85(12). 1304–1311. 16 indexed citations

Akinaga, Shiro, Kayo Nomura, Katsushige Gomi, & Masami Okabe. (1993). Diverse effects of indolocarbazole compounds on the cell cycle progression of ras-transformed rat fibroblast cells.. The Journal of Antibiotics. 46(11). 1767–1771. 16 indexed citations

10.

Kobayashi, Eiji, Masami Okabe, Motomichi Kono, et al.. (1993). Comparison of uptake of mitomycin C and KW-2149 by murine P388 leukemia cells sensitive or resistant to mitomycin C. Cancer Chemotherapy and Pharmacology. 32(1). 20–24. 19 indexed citations

11.

Akinaga, Shiro, Tadashi Ashizawa, Katsushige Gomi, et al.. (1992). Antitumor effect of KT6124, a novel derivative of protein kinase inhibitor K-252a and its mechanism of action. Cancer Chemotherapy and Pharmacology. 29(4). 266–272. 23 indexed citations

12.

Gomi, Katsushige, Eiji Kobayashi, Tadashi Ashizawa, et al.. (1992). Anticellular and Antitumor Activity of Duocarmycins, Novel Antitumor Antibiotics. Japanese Journal of Cancer Research. 83(1). 113–120. 35 indexed citations

13.

Gomi, Katsushige, et al.. (1992). Kinetic Analysis of Combination Effect of Navelbine (KW‐2307) with Cisplatin against Human Lung Adenocarcinoma PC‐12 Cells in Culture. Japanese Journal of Cancer Research. 83(5). 532–539. 12 indexed citations

14.

Yamashita, Yoshinori, Noboru Fujii, Chikara Murakata, et al.. (1992). Induction of mammalian DNA topoisomerase I mediated DNA cleavage by antitumor indolocarbazole derivatives. Biochemistry. 31(48). 12069–12075. 127 indexed citations

15.

Akinaga, Shiro, Katsushige Gomi, Makoto Morimoto, Tatsuya Tamaoki, & Masami Okabe. (1991). Antitumor activity of UCN-01, a selective inhibitor of protein kinase C, in murine and human tumor models.. PubMed. 51(18). 4888–92. 167 indexed citations

16.

Foster, Kenneth W., Jureepan Saranak, Fadila Derguini, et al.. (1989). Activation of Chlamydomonas rhodopsin in vivo does not require isomerization of retinal. Biochemistry. 28(2). 819–824. 33 indexed citations

17.

Okabe, Masami, et al.. (1988). Studies on nutritional requirement of fugu [Takifugu rubripes], 3: Effect of dietary dextrin, feed oil and vitamins. 5 indexed citations

18.

Lanyi, Janos Κ., László Zimányi, Kazuki Nakanishi, et al.. (1988). Chromophore/protein and chromophore/anion interactions in halorhodopsin. Biophysical Journal. 53(2). 185–191. 39 indexed citations

19.

Tada, Masaru, et al.. (1985). BIOMIMETIC RADICAL REARRANGEMENT OF A THIOESTER GROUP MEDIATED BY A COBALT COMPLEX, COBALOXIME. Chemistry Letters. 14(12). 1821–1824. 9 indexed citations

20.

Okabe, Masami & Masaru Tada. (1982). The Reaction of Bis(dimethylglyoximato)(pyridine)cobalt(I), Cobaloxime(I), with 2-(Allyloxy)ethyl Halides and the Photolysis of the Resulting Organo-cobaloximes. Bulletin of the Chemical Society of Japan. 55(5). 1498–1503. 40 indexed citations

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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