Koichi Sasaki

ORCID: 0000-0001-9966-957X
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About
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Research Areas
  • Monoclonal and Polyclonal Antibodies Research
  • CAR-T cell therapy research
  • Immunotherapy and Immune Responses
  • Colorectal Cancer Treatments and Studies
  • Radiopharmaceutical Chemistry and Applications
  • Gastric Cancer Management and Outcomes
  • Acute Myeloid Leukemia Research
  • Glycosylation and Glycoproteins Research
  • Metastasis and carcinoma case studies
  • Cancer Treatment and Pharmacology
  • Chronic Lymphocytic Leukemia Research
  • Colorectal and Anal Carcinomas
  • Cancer Immunotherapy and Biomarkers
  • Genetic factors in colorectal cancer
  • Colorectal Cancer Surgical Treatments
  • Helicobacter pylori-related gastroenterology studies
  • Lung Cancer Treatments and Mutations
  • Asthma and respiratory diseases
  • Esophageal Cancer Research and Treatment
  • Cancer Genomics and Diagnostics
  • Tracheal and airway disorders
  • Childhood Cancer Survivors' Quality of Life
  • Tendon Structure and Treatment
  • Drug Transport and Resistance Mechanisms
  • Angiogenesis and VEGF in Cancer

The London College
2025

Imperial College London
2022-2025

Hiroshima International University
2022-2024

Eisai (Japan)
1996-2024

Nagoya University
2022

Hokkaido University
2022

Osaka Prefecture University
2020-2021

Kyushu University
2015-2021

Graduate School USA
2016-2021

University of Chicago
2018-2020

NF-IL6, a member of the basic leucine zipper (bZIP) family transcription factors, is involved in expression inducible genes immune and inflammatory responses. We observed that coexpression oncogenic p21ras stimulated transactivating activity NF-IL6 induced phosphorylation Thr-235 located just N-terminal to DNA binding domain NF-IL6. Recently, mitogen-activated protein (MAP) kinases have been shown be implicated cellular response activated ras. Purified MAP specifically phosphorylated vitro....

10.1073/pnas.90.6.2207 article EN Proceedings of the National Academy of Sciences 1993-03-15

Core binding factor beta (CBF beta) is considered to be a transcriptional coactivator that dimerizes with transcription factors core alpha 1 (CBFA1), -2, and -3, enhances DNA capacity of these factors. CBF CBFA2, which also called acute myeloid leukemia gene, are frequently involved in chromosomal translocations human leukemia. To elucidate the function beta, mice carrying mutation Cbfb locus were generated. Homozygous mutant embryos died between embryonic days 11.5-13.5 due hemorrhage...

10.1073/pnas.93.22.12359 article EN Proceedings of the National Academy of Sciences 1996-10-29

Laminin, as a key component of the basement membrane extracellular matrix (ECM), regulates tissue morphogenesis. Here, we show that multiple laminin isoforms promiscuously bind to growth factors (GFs) with high affinity, through their heparin-binding domains (HBDs) located in α chain laminin-type G (LG) domains. These also syndecan cell-surface receptors, promoting attachment fibroblasts and endothelial cells. We explore application these multifunctional HBDs wound healing type-2 diabetic...

10.1038/s41467-018-04525-w article EN cc-by Nature Communications 2018-05-29

Six transmembrane epithelial antigen of the prostate 1 (STEAP1) is a cell surface for therapeutic targeting in cancer. Here, we report broad expression STEAP1 relative to prostate-specific membrane (PSMA) lethal metastatic cancers and development STEAP1-directed chimeric receptor (CAR) T therapy. CAR cells demonstrate reactivity low density, antitumor activity across cancer models, safety human knock-in mouse model. escape recurrent mechanism treatment resistance associated with diminished...

10.1038/s41467-023-37874-2 article EN cc-by Nature Communications 2023-04-11

CCAAT/enhancer binding protein α (C/EBPα) is an integral factor in the granulocytic developmental pathway, as myeloblasts from C/EBPα-null mice exhibit early block differentiation. Since deficient for known C/EBPα target genes do not same granulocyte maturation, we sought to identify additional essential myeloid cell development. To such genes, used both representational difference analysis and oligonucleotide array with RNA derived a C/EBPα-inducible line. From each of these independent...

10.1128/mcb.21.11.3789-3806.2001 article EN Molecular and Cellular Biology 2001-06-01

Serum albumin (SA) is used as a carrier to deliver cytotoxic agents tumors via passive targeting. To further improve SA's tumor targeting capacity, we sought develop an approach retain SA-drug conjugates within through combination of and active SA was recombinantly fused with collagen-binding domain (CBD) von Willebrand factor bind the stroma after extravasation due vascular permeability. Doxorubicin (Dox) conjugated CBD-SA pH-sensitive linker. Dox-CBD-SA treatment significantly suppressed...

10.1126/sciadv.aaw6081 article EN cc-by-nc Science Advances 2019-08-02

Preventing distant recurrence and achieving local control are important challenges in rectal cancer treatment, use of adjuvant chemotherapy has been studied. However, no phase III study comparing regimens for demonstrated superiority a specific regimen. We therefore conducted to evaluate the S-1 tegafur-uracil (UFT), standard regimen curatively resected stage II/III Japan, setting cancer.The ACTS-RC trial was an open-label, randomized, at 222 sites Japan. Patients aged 20-80 with undergoing...

10.1093/annonc/mdw162 article EN cc-by-nc Annals of Oncology 2016-04-08

Abstract Metastatic castration-resistant prostate cancer (mCRPC) is a major cause of cancer-related deaths among men in the United States, with limited effectiveness from current immunotherapies due to cancer’s immunologically ‘cold’ nature. Chimeric antigen receptor (CAR) T cell therapies have transformed treatment paradigms hematologic cancers, but achieving similar success solid tumors like remains challenging. Most CAR for target prostate-specific membrane (PSMA) or stem (PSCA); however,...

10.1158/2326-6074.io2025-b010 article EN Cancer Immunology Research 2025-02-23

Immunosuppressive microenvironments, the lack of immune infiltration, and antigen heterogeneity pose significant challenges for chimeric receptor (CAR)-T cell therapies to tackle solid tumors. CAR-T cells were armed with immunostimulatory payloads, such as interleukin-12 (IL-12), overcome this issue, but faced intolerable toxicity during clinical development. Here, we show that collagen-binding domain-fused IL-12 (CBD-IL-12) was retained within syngeneic murine prostate tumors, after...

10.1101/2025.03.19.644145 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2025-03-19

Abstract Metastatic castration-resistant prostate cancer (mCRPC) is a largely incurable, immunologically cold solid tumor. Six-transmembrane epithelial antigen of the 1 (STEAP1) promising target specifically expressed in >85% mCRPC patients. Chimeric receptor (CAR)-T cells transformed clinical landscape blood cancers. However, CAR-T therapy still not very effective against cancers including cancer, part due to immunosuppressive tumor microenvironment (TME) and heterogeneity....

10.1158/1538-7445.am2025-6099 article EN Cancer Research 2025-04-21

To investigate overall chromosomal alterations using array-based comparative genomic hybridisation (CGH) of myxoid liposarcomas (MLSs) and myxofibrosarcomas (MFSs).Genomic DNA extracted from fresh-frozen tumour tissues was labelled with fluorochromes then hybridised on to an array consisting 1440 bacterial artificial chromosome clones representing regions throughout the entire human genome important in cytogenetics oncology.DNA copy number aberrations (CNAs) were found all 8 MFSs, but no 7...

10.1136/jcp.2005.034942 article EN Journal of Clinical Pathology 2006-06-02

Fc-binding antibody-recruiting molecules provide robust and sufficient opportunities to employ endogenous antibodies for anti-tumor immune responses.

10.1039/d0sc00017e article EN cc-by-nc Chemical Science 2020-01-01

pH-Sensitive branched β-glucan-modified liposomes promote antigen uptake and activation of dendritic cells in vitro , inducing anti-tumor immune responses vivo .

10.1039/d1tb00786f article EN Journal of Materials Chemistry B 2021-01-01

In order to estimate the prognostic values of p27(Kip1), p21(Waf1/Cip1), and p53, alone in combination, we investigated immunohistochemically expression p53 proteins gastric carcinomas.The was examined 140 carcinomas. Positive p27(Kip1) p21(Waf1/Cip1) correlated significantly with a favourable prognosis (P < 0.05), whereas, positive tended correlate poor prognosis. Multivariate survival analysis revealed that TNM stage tumour 0.001), lymph node state (P=0.005), (P=0.006) were independent...

10.1046/j.1365-2559.2001.01283.x article EN Histopathology 2001-12-01

Abstract In Japan and Korea, outbreaks of scuticociliatosis have frequently occurred in Japanese flounder, Paralichthys olivaceus . Morphological observations small subunit rRNA gene sequences shown that the causative agent flounder is Miamiensis avidus (syn. Philasterides dicentrarchi ). this study, we elucidated antigenic differences between six M. isolates as an initial step toward developing effective vaccine against disease. Four (IyoI, Nakajima, JF05To Mie0301 isolates), one spotted...

10.1111/j.1365-2761.2009.01089.x article EN Journal of Fish Diseases 2009-08-21
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