Publications by authors named "Makiko Tsuboi"

We report the use of small interfering RNAs (siRNAs) against , , , , , and and folic acid (FA)-modified polyethylene glycol (PEG)-chitosan oligosaccharide lactate (COL) nanoparticles for targeting, imaging, delivery, gene silencing, and inhibition of invasiveness and metastasis in an orthotopic xenograft model. assays revealed that these siRNA-FA-PEG-COL nanoparticles were specifically inserted into pancreatic cancer cells compared to immortalized normal pancreatic epithelial cells and knocked down expression of the corresponding targets in pancreatic cancer cells. Cell motility and invasion were significantly inhibited by adding target siRNA-FA-PEG-COL nanoparticles into the culture medium.

View Article and Find Full Text PDF

Diagnostic biomarkers for the early diagnosis of pancreatic cancer are needed to improve prognosis for this disease. The aim of this study was to investigate differences in the expression of four messenger RNAs (mRNAs: CCDC88A, ARF6, Vav3, and WASF2) and five small nucleolar RNAs (snoRNAs: SNORA14B, SNORA18, SNORA25, SNORA74A, and SNORD22) in serum of patients with pancreatic cancer and control participants for use in the diagnosis of pancreatic cancer. Results were compared with the expression of sialylated Lewis (a) blood group antigen CA19-9, the standard clinical tumor biomarker.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate podocalyxin (PODXL) and secretoglobin family 1D member 2 (SCGB1D2) as potential blood biomarkers for pancreatic cancer, comparing their effectiveness to the current standard, CA19-9.
  • Researchers conducted flow cytometry and immunoblotting on cultured pancreatic cancer cells to confirm the presence of PODXL and SCGB1D2, followed by a clinical study involving 23 pancreatic cancer patients and 51 controls.
  • Results showed that PODXL had a high diagnostic accuracy (AUC of 0.96), outperforming CA19-9 (AUC of 0.78), suggesting PODXL could be a promising non-invasive biomarker for pancreatic cancer
View Article and Find Full Text PDF

genes encode transcription factors that function as sequence-specific transcription factors that are involved in cellular proliferation, differentiation, and death. The aim of this study was to investigate the role of a HOX family protein, HOXB7, in the motility and invasiveness of pancreatic cancer cells. We previously identified a transcript that is one of a number of transcripts that are preferentially translated in membrane protrusions in pancreatic cancer cells.

View Article and Find Full Text PDF

Background/objectives: The aim of this study was to investigate the role of the guanine nucleotide exchange factor Vav3 in the motility and invasiveness of pancreatic ductal adenocarcinoma (PDAC) cells.

Methods: Immunohistochemistry was used to determine whether high Vav3 expression in human PDAC tissues is correlated with poor prognosis. Immunocytochemistry was used to determine the association and intracellular distribution of Vav3, Rac1 and Akt in PDAC cells.

View Article and Find Full Text PDF

Intrahepatic arterioportal fistula (IAPF) is a rare cause of portal hypertension that is often difficult to treat with interventional radiology or surgery. Liver transplantation for IAPF is extremely rare. We report a case of bilateral diffuse IAPF with severe portal hypertension requiring deceased donor liver transplantation (DDLT).

View Article and Find Full Text PDF