Aimono, Eriko



School of Medicine, Clinical and Translational Research Center (Shinanomachi)


Project Assistant Professor (Non-tenured)/Project Research Associate (Non-tenured)/Project Instructor (Non-tenured)


Papers 【 Display / hide

  • Genetic profiling of patients with adenoid cystic carcinoma of the Bartholin's glands reveals potential new routes for targeted therapies: A case report

    Nakamura K., Aimono E., Tanishima S., Nomura H., Imai M., Hayashi H., Nishihara H.

    Diagnostic Pathology (Diagnostic Pathology)  15 ( 1 )  2020.05

     View Summary

    © 2020 The Author(s). Background: Bartholin gland carcinomas (BGCs) are rare tumor types, for which no molecular analyses including genomic sequencing have been reported to date. Adenoid cystic carcinomas (ACCs) of the Bartholin's glands are an atypical histological type of BGC, and currently nothing is known regarding their genetic profiles or similarity to ACC carcinogenesis in other organs including the salivary glands, thereby limiting possible therapeutic options using precision medicine. Case presentation: We used targeted gene sequencing to analyze the occurrence of 160 cancer-related genes in two patients with BG-ACC. KRAS and KDM6A mutations were detected in tumor samples collected from each patient. No KRAS mutations have been previously reported in salivary gland ACCs, indicating that the carcinogenesis of BG-ACC differs from that of the salivary gland ACCs. KDM6A mutations are often reported in salivary gland ACCs and facilitate novel gene-targeted therapy, including the use of BET and HDAC inhibitors. Conclusions: A better understanding of the underlying genetic mechanisms will help to clarify the carcinogenesis of BG-ACC. In turn, this will enable treatment with novel targeting agents, as well as the initial exploration of gene-based precision oncological therapies, which aim to improve treatment outcomes for patients with this disease.

  • Required human and system resources for genomic medicine

    Aimono E., Nishihara H.

    Yakugaku Zasshi (Yakugaku Zasshi)  140 ( 5 ) 651 - 655 2020.05

    ISSN  00316903

     View Summary

    © 2020 The Pharmaceutical Society of Japan Advances in genomic medicine have enabled the development of precise cancer therapies (precision cancer medicine) through multigene testing. Toward this end, we have developed a novel clinical sequencing system called PleSSision (Pathologist edited, Mitsubishi Space Software supervised clinical sequence system for personalized medicine) that performs amplicon exome sequencing targeting 160 cancer genes. Using this system, we have examined more than 600 cases over 3 years, and have identified druggable gene alteration in approximately 60% of the cases. Performing such clinical sequencing requires management of the sample quality and sequencing by pathologists and laboratory technicians; bioinformatics analysis by biomedical scientists; and patient care by nurses and pharmacists, all based on specific skills and knowledge of genomics. In addition, patients diagnosed with a hereditary cancer syndrome based on clinical sequencing results must receive care from a genetic counselor and a medical doctor with expertise in genetics. Recently, poly(ADP-ribose)polymerase (PARP) inhibitors and immune checkpoint inhibitors have been used in the treatment of patients with hereditary cancer syndromes, so collaboration involving other medical staŠ, especially genomic pharmacists, is also required. In this session, we provide an overview of cancer genomic medicine and emphasize the role that genomic pharmacists play in cancer precision medicine.

  • Learning from my experience: Outpatient care for cancer multigene genomic testing

    Aimono E., Iguchi A., Mochida K., Imai M., Hayashi H., Nishihara H.

    Yakugaku Zasshi (Yakugaku Zasshi)  140 ( 5 ) 667 - 668 2020.05

    ISSN  00316903

     View Summary

    © 2020 The Pharmaceutical Society of Japan We established an outpatient service in November 2017 to provide cancer gene profiling test services to cancer patients. To date, we have seen approximately 100 patients. Our staŠ includes genetic counselors and nurses specialized in genetic medicine. Our experience highlights the importance of healthcare professionals having in-depth knowledge of cancer therapeutic drugs and/or investigational drugs based on cancer genome medicine. Recently, poly(ADP-ribose) polymerase (PARP) inhibitors have been approved for treating breast cancer patients with germline BRCA mutation; thus, in-depth knowledge of genetics and skills for genetic counseling are often considered indispensable in working with cancer patients. However, because the prompt treatment of clear and present cancer is the top priority in clinical settings, providing genetic information at that time, including that of unaŠected family members, is of low priority for most patients who are dealing with the severe side eŠects of anti-cancer therapies. Pharmacists have an essential role to play in cancer therapeutics, talking with patients in order to assess their condition and to clarify the status of their treatment with anticancer agents. Genetic pharmacists should therefore work closely with genetics nurses and genetic counselors in the clinical practice of cancer genomic medicine. In this symposium, I would like to describe our experience caring for patients through our outpatient service, and to discuss the ideal framework for multidisciplinary cooperation to promote cancer genomic medicine.

  • Intratumoral genomic heterogeneity may hinder precision medicine strategies in patients with serous ovarian carcinoma

    Nakamura K., Aimono E., Tanishima S., Imai M., Nagatsuma A.K., Hayashi H., Yoshimura Y., Nakayama K., Kyo S., Nishihara H.

    Diagnostics (Diagnostics)  10 ( 4 )  2020.04

     View Summary

    © 2020 by the authors. Precision medicine, which includes comprehensive genome sequencing, is a potential therapeutic option for treating high-grade serous carcinoma (HGSC). However, HGSC is a heterogeneous tumor at the architectural, cellular, and molecular levels. Intratumoral molecular heterogeneity currently limits the precision of medical strategies based on the gene mutation status. This study was carried out to analyze the presence of 160 cancer-related genetic alterations in three tissue regions with different pathological features in a patient with HGSC. The patient exhibited histological heterogeneous features with different degrees of large atypical cells and desmoplastic reactions. TP53 mutation, ERBB2 and KRAS amplification, and WT1, CDH1, and KDM6A loss were detected as actionable gene alterations. Interestingly, the ERBB2 and KRAS amplification status gradually changed according to the region examined. The difference was consistent with the differences in pathological features. Our results demonstrate the need for sampling of the appropriate tissue region showing progression of pathological features for molecular analysis to solve issues related to tumor heterogeneity prior to developing precision oncology strategies.

  • Aggressive prostate cancer with somatic loss of the homologous recombination repair gene FANCA: A case report

    Hongo H., Kosaka T., Aimono E., Nishihara H., Oya M.

    Diagnostic Pathology (Diagnostic Pathology)  15 ( 1 )  2020.01

     View Summary

    © 2020 The Author(s). Background: Precision medicine based on genomic analysis of germline or tumor tissue is attracting attention. However, there is no consensus on how to apply the results of genomic analysis to treatment. Case presentation: A 59-year-old man diagnosed with metastatic prostate cancer was diagnosed with castration-resistant prostate cancer. Although he was sequentially treated with enzalutamide and abiraterone, bone metastasis progression was identified by skeletal scintigraphy. Therefore, we sequentially performed docetaxel therapy followed by cabazitaxel. After the third cycle of cabazitaxel, his prostate-specific antigen level was stable at < 10 ng/mL, and no radiological progression was detected. The patient's formalin-fixed paraffin-embedded tumor biopsy specimen underwent multiple-gene testing by next-generation sequencing, which identified a FANCA homodeletion. No significant germline mutation was observed. Conclusions: We describe a case of aggressive, castration-resistant prostate cancer with FANCA homodeletion. Genomic analysis of prostate cancer tissue can be useful to determine optimal treatment of such cancers.

display all >>

Research Projects of Competitive Funds, etc. 【 Display / hide

  • 遺伝子パネル検査によるHeterogeneityの解明と病理診断学的判断への貢献


    MEXT,JSPS, Grant-in-Aid for Scientific Research, 四十物 絵理子, Grant-in-Aid for Scientific Research (C), Principal Investigator