• Issue

    Cancer Science: Volume 107, Issue 4

    373-563
    April 2016

ISSUE INFORMATION

Free Access

Issue Information

  • Pages: 373-375
  • First Published: 15 April 2016
Issue Information

Cover of this issue. Uptake of extracellar vesicles by endothelial cell. See also Fujita, Y., et al. (pages 385–390 of this issue).

IN THIS ISSUE

Free Access

In This Issue

  • Page: 376
  • First Published: 15 April 2016

REVIEW ARTICLES

Open Access

Dysregulation of protein methyltransferases in human cancer: An emerging target class for anticancer therapy

  • Pages: 377-384
  • First Published: 11 January 2016
Dysregulation of protein methyltransferases in human cancer: An emerging target class for anticancer therapy

Although protein methylation was found around a half-century ago, biological and physiological functions of protein methylation remained unknown for a long time. In the 21st century, we and other researchers characterized a number of protein methyltransferases and elucidated their functions, in particular focusing on their epigenetic regulation through histone methylation. Now, protein methyltransferases are attracting considerable attention as new targets for development of anticancer therapy.

Open Access

Extracellular vesicle transfer of cancer pathogenic components

  • Pages: 385-390
  • First Published: 21 January 2016
Extracellular vesicle transfer of cancer pathogenic components

In this review, we summarize recent findings regarding Extracellular vesicle (EV) function, specifically in metastasis through the transfer of cancer pathogenic components. Furthermore, we also highlight the potential of using circulating EVs for cancer diagnosis.

Open Access

Inflammation in gastric cancer: Interplay of the COX-2/prostaglandin E2 and Toll-like receptor/MyD88 pathways

  • Pages: 391-397
  • First Published: 01 February 2016

Inflammation in gastric cancer: Interplay of the COX-2/prostaglandin E2 and Toll-like receptor/MyD88 pathways

Chronic inflammation plays an tumor-promoting role in gastric cancer development. We review the latest understanding about the roles of COX-2/PGE2-associated inflammation in gastric tumorigenesis and its connection to TLR/MyD88-related innate immune responses.

ORIGINAL ARTICLES

BASIC AND CLINICAL IMMUNOLOGY

Open Access

Combined adjuvants of poly(I:C) plus LAG-3-Ig improve antitumor effects of tumor-specific T cells, preventing their exhaustion

  • Pages: 398-406
  • First Published: 15 April 2016
Combined adjuvants of poly(I:C) plus LAG-3-Ig improve antitumor effects of tumor-specific T cells, preventing their exhaustion

This study explored a potential of poly(I:C) and LAG-3-Ig as adjuvants for tumor antigen peptide vaccine in the pre-established mouse tumor model. It was found that poly(I:C) plus LAG-3-Ig combination as adjuvant profoundly augments therapeutic potential of tumor peptide vaccine.

CARCINOGENESIS

Open Access

Elevated hepatocyte growth factor expression as an autocrine c-Met activation mechanism in acquired resistance to sorafenib in hepatocellular carcinoma cells

  • Pages: 407-416
  • First Published: 20 January 2016
Elevated hepatocyte growth factor expression as an autocrine c-Met activation mechanism in acquired resistance to sorafenib in hepatocellular carcinoma cells

In this study, we demonstrate that long-term sorafenib treatment induces autocrine HGF secretion and activates c-Met signaling. Moreover, our findings suggest that dual inhibition of HGF and c-Met kinase in the resistant cells is more potent to restore sorafenib sensitivity than single inhibitions alone. Our data is the first demonstration of autocrine HGF/c-Met signaling in sorafenib resistant HCC cells and provide a novel strategy for the design of second-line treatments after sorafenib failure.

Open Access

MicroRNA-761 is upregulated in hepatocellular carcinoma and regulates tumorigenesis by targeting Mitofusin-2

  • Pages: 424-432
  • First Published: 04 February 2016
MicroRNA-761 is upregulated in hepatocellular carcinoma and regulates tumorigenesis by targeting Mitofusin-2

Mitofusin-2 was found to be a direct target of miR-761, which was found to be upregulated in HCC tissues. MiR-761 can affect mitochondrial function and inhibit cell proliferation, migration, and invasion in vivo and in vitro by targeting Mfn2.

CELL, MOLECULAR, AND STEM CELL BIOLOGY

Open Access

ADAM23 is downregulated in side population and suppresses lung metastasis of lung carcinoma cells

  • Pages: 433-443
  • First Published: 22 January 2016
ADAM23 is downregulated in side population and suppresses lung metastasis of lung carcinoma cells

Lung metastasis after intravascular injection of A549 lung adenocarcinoma cells with different ADAM23 expression levels into NOD/SCID mice was determined by bioluminescence imaging and histological examination of the whole lungs. As shown in this figure, the metastasis was inhibited at two weeks in the mouse group received ADAM23-overexpressing cells and enhanced in that of ADAM23-knockdown cells.

Open Access

Enhanced gefitinib-induced repression of the epidermal growth factor receptor pathway by ataxia telangiectasia-mutated kinase inhibition in non-small-cell lung cancer cells

  • Pages: 444-451
  • First Published: 30 January 2016
Enhanced gefitinib-induced repression of the epidermal growth factor receptor pathway by ataxia telangiectasia-mutated kinase inhibition in non-small-cell lung cancer cells

ATM inhibition may facilitate the gefitinib-dependent repression of the phosphorylation of EGFR and/or its downstream factors, to exert anti-cancer effects against NSCLC cells with the sensitive EGFR mutation.

Open Access

Drug screening and grouping by sensitivity with a panel of primary cultured cancer spheroids derived from endometrial cancer

  • Pages: 452-460
  • First Published: 30 January 2016
Drug screening and grouping by sensitivity with a panel of primary cultured cancer spheroids derived from endometrial cancer

A method of 3D culture for primary cancer cells, Cancer Tissue-Originated Spheroid, CTOS, was applied to endometrial cancer. Drug screening was performed, and the candidate drugs were tested with multiple patient samples. Biomarkers were investigated with the diversity of sensitivity.

CLINICAL RESEARCH

Open Access

GANP protein encoded on human chromosome 21/mouse chromosome 10 is associated with resistance to mammary tumor development

  • Pages: 469-477
  • First Published: 09 January 2016
GANP protein encoded on human chromosome 21/mouse chromosome 10 is associated with resistance to mammary tumor development

GANP expression is an independent prognostic factor in human breast cancers, whereas two types of ganp-deficient mice develop mammary tumors. GANP protein encoded on chromosome 21q is associated with resistance to mammary tumor development.

Open Access

Metabolic tumor burden predicts prognosis of ovarian cancer patients who receive platinum-based adjuvant chemotherapy

  • Pages: 478-485
  • First Published: 20 January 2016
Metabolic tumor burden predicts prognosis of ovarian cancer patients who receive platinum-based adjuvant chemotherapy

MTV and TLG (especially TLG) could serve as potential surrogate biomarkers for recurrence in patients with primary cytoreductive surgery followed by platinum-based chemotherapy.

Open Access

Nimotuzumab plus paclitaxel and cisplatin as the first line treatment for advanced esophageal squamous cell cancer: A single centre prospective phase II trial

  • Pages: 486-490
  • First Published: 21 January 2016
Nimotuzumab plus paclitaxel and cisplatin as the first line treatment for advanced esophageal squamous cell cancer: A single centre prospective phase II trial

This prospective, single-armed, open label phase II study is conducted to evaluate the efficacy and safety of the combination of paclitaxel (T)/cisplatin (P) with nimotuzumab (N) as first-line treatment in advanced ESCC.

Open Access

Fibroblast growth factor receptor-1 protein expression is associated with prognosis in estrogen receptor-positive/human epidermal growth factor receptor-2-negative primary breast cancer

  • Pages: 491-498
  • First Published: 23 January 2016
Fibroblast growth factor receptor-1 protein expression is associated with prognosis in estrogen receptor-positive/human epidermal growth factor receptor-2-negative primary breast cancer

This is the first study to analyze gene copy number aberration, mRNA expression, and protein expression of FGFR1, and the correlation of each parameter with breast cancer characteristics. The expression level of FGFR1 protein may be an independent prognostic factor in terms of relapse free survival for ER-positive/HER2-negative primary breast cancer patients.

Open Access

Preclinical and first-in-human phase I studies of KW-2450, an oral tyrosine kinase inhibitor with insulin-like growth factor receptor-1/insulin receptor selectivity

  • Pages: 499-506
  • First Published: 06 February 2016
Preclinical and first-in-human phase I studies of KW-2450, an oral tyrosine kinase inhibitor with insulin-like growth factor receptor-1/insulin receptor selectivity

We summarize pre-clinical studies and the first-in-human study of KW-2450, an oral tyrosine kinase inhibitor with insulin-like growth factor receptor-1 and insulin receptor inhibitory activity. Single-agent KW-2450 was associated with modest antitumor activity in heavily pre-treated patients with solid tumors and is being further investigated in combination therapy with lapatinib/letrozole in patients with HER2-postive metastatic breast cancer.

DRUG DISCOVERY AND DELIVERY

Open Access

Metformin inhibits the prometastatic effect of sorafenib in hepatocellular carcinoma by upregulating the expression of TIP30

  • Pages: 507-513
  • First Published: 11 January 2016
Metformin inhibits the prometastatic effect of sorafenib in hepatocellular carcinoma by upregulating the expression of TIP30

Our study is conducted to evaluate whether the combination of sorafenib and metformin is sufficient to revert the expression of TIP30, by which reducing the lung metastasis and improving the survival simultaneously. Our data show that the combination of sorafenib and metformin inhibits proliferation and invasion in vitro, prolongs the median survival and reduces lung metastasis of HCC in vivo. This effect is closely associated with the up-regulation of TIP30, partly through activating AMPK.

Open Access

Cetuximab delivery and antitumor effects are enhanced by mild hyperthermia in a xenograft mouse model of pancreatic cancer

  • Pages: 514-520
  • First Published: 19 January 2016
Cetuximab delivery and antitumor effects are enhanced by mild hyperthermia in a xenograft mouse model of pancreatic cancer

The present study indicate that cetuximab accumulation and the resulting antitumor effects are enhanced by treatment at 41°C compared to 37°C, especially in the stroma-rich Capan-1 Cell-xeno and Ope-xeno models.

EPIDEMIOLOGY AND PREVENTION

Open Access

Burden of cancer associated with type 2 diabetes mellitus in Japan, 2010–2030

  • Pages: 521-527
  • First Published: 01 February 2016

This study provides the first comprehensive evidence on the current and future burden of cancer associated with type 2 diabetes mellitus. Between 2010 and 2030, the incident cancer cases associated with type 2 diabetes were found to increase constantly over time, particularly in liver, pancreas and colon in Japan. Given the prolonged life expectancy in Japan, increase in people living with type 2 diabetes and subsequent cancer will be a public health issue in the years to come.

GENETICS, GENOMICS, AND PROTEOMICS

Open Access

Exome-wide single-base substitutions in tissues and derived cell lines of the constitutive Fhit knockout mouse

  • Pages: 528-535
  • First Published: 19 January 2016
Exome-wide single-base substitutions in tissues and derived cell lines of the constitutive Fhit knockout mouse

Due to absence of Fhit genome caretaker function, Fhit knockout mouse cells develop aneuploidy, allele copy number losses and −/− tissues develop >1000 single-base substitutions in the 2% of the genome included in exomes. The mutation signature is characterized by increased C>T and T>C mutations, similar to the “age at diagnosis” signature identified in human cancers. The increase in T>C mutations in −/− exomes may be due to thymidine triphosphate imbalance, resulting from decreased expression of Thymidine Kinase 1 in Fhit-deficient cells.

PATHOLOGY

Open Access

Significant intratumoral heterogeneity of human epidermal growth factor receptor 2 status in gastric cancer: A comparative study of immunohistochemistry, FISH, and dual-color in situ hybridization

  • Pages: 536-542
  • First Published: 11 January 2016

This study demonstrated that HER2 assessment in biopsy tissues may predict the HER2 status of the whole tumor by IHC, FISH, and DISH. However, some cases of discordance may occur because of intratumoral HER2 heterogeneity in gastric cancers. In cases of intratumoral heterogeneity, more accurate HER2 assessment can be achieved by analysis of whole sections and by using a combination of IHC and DISH, if possible.

REPORT

Open Access

Anti-bevacizumab idiotype antibody vaccination is effective in inducing vascular endothelial growth factor-binding response, impairing tumor outgrowth

  • Pages: 551-555
  • First Published: 15 April 2016
Anti-bevacizumab idiotype antibody vaccination is effective in inducing vascular endothelial growth factor-binding response, impairing tumor outgrowth

  1. Anti-bevacizumab idiotype 10.D7 mAb elicits VEGF-binding anti-anti-Id response.
  2. 10.D7 anti-Id mAb mouse vaccination led to impaired tumor outgrowth.
  3. Idiotypic network approach impairs in vitro tube formation and tumor angiogenesis.

MEETING REPORT

Open Access

UICC International Session: What are the implications of sharing the concept of Universal Health Coverage for cancer in Asia?

  • Pages: 556-563
  • First Published: 15 April 2016

The Japan National Committee for the Union for International Cancer Control (UICC) and UICC-Asia Regional Office (ARO) organized an international session as part of the official program of the 74th Annual Meeting of the Japanese Cancer Association to discuss the topic “What are the implications of sharing the concept of Universal Health Coverage for cancer in Asia?” The presenters and participants discussed the growing cost of cancer in the Asian region and the challenges that this poses to the establishment and deployment of UHC in the countries of Asia, all of which face budgetary and other systemic constraints in tackling and controlling cancer in the region.