Results 71 to 80 of about 3,382,864 (170)

Deceptive Thyroid Pathologies: Anaplastic Thyroid Carcinoma Mimics and Clinical Implications

open access: yesHead &Neck, Volume 48, Issue 8, Page 2180-2189, August 2026.
ABSTRACT Background Beyond follicular‐derived thyroid carcinomas, lymphomas, and metastatic disease, there are rare pathologies of the thyroid gland that represent a challenge. We report patients with unusual malignancies that mimic similar aggressive cancers. Methods Retrospective case series.
David Z. Allen   +12 more
wiley   +1 more source

Single Cell Multi‐Omics Revealing the Important Role of MR1 Mediated MAIT Cells in Maintaining Rejection for Liver Transplantation

open access: yesCell Proliferation, Volume 59, Issue 8, August 2026.
This multi‐omics study reveals the significant role of MAIT cells in liver transplant rejection. MAIT cells drive rejection in liver transplantation via the MR1 axis. Their absence reshapes T cell responses and clonal expansion, attenuating allograft injury.
Hailun Cai   +15 more
wiley   +1 more source

Expression of hepatic progenitor cell markers in acute cellular rejection of liver allografts-An immunohistochemical study

open access: yes, 2018
BACKGROUND: Hepatic progenitor cells (HPC) are induced following liver injury to facilitate regeneration. Acute cellular rejection (ACR) is a common complication after liver transplantation as a result of immune-mediated liver injury.
Leung, CO, Chan, KK, Lo, CLR, Ng, IOL
core   +1 more source

Clinicopathological and molecular characterization of HPV‐associated cervical poorly cohesive carcinoma: a rare aggressive entity

open access: yesThe Journal of Pathology: Clinical Research, Volume 12, Issue 4, July 2026.
Abstract Primary signet‐ring cell carcinoma and poorly differentiated adenocarcinoma with poorly cohesive morphology in the cervix are rare conditions, and their clinicopathological features remain poorly described. This study defines primary cervical poorly differentiated adenocarcinomas meeting the diagnostic criteria for poorly cohesive carcinoma as
Wei Liu   +14 more
wiley   +1 more source

Automated Segmentation of Cells with IHC Membrane Staining [PDF]

open access: yes, 2011
This study presents a fully automated membrane segmentation technique for immunohistochemical tissue images with membrane staining, which is a critical task in computerized immunohistochemistry (IHC).
A Acquaviva   +7 more
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, Volume 20, Issue 6, Page 1556-1590, June 2026.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Diagnostic Roles of Immunohistochemistry in Thymic Tumors: Differentiation between Thymic Carcinoma and Thymoma

open access: yesDiagnostics, 2020
Background: The present study aims to evaluate the diagnostic roles of various immunohistochemical (IHC) markers in thymic tumors, including thymic carcinoma (TC) and thymoma (TM). Methods: Eligible studies were obtained by searching the PubMed databases
Jae-Han Jeong   +3 more
doaj   +1 more source

Targeting m6A Reader YTHDF1 Enhances Antitumor Immunity and Potentiates Anti‐PD‐L1 Efficacy in Intrahepatic Cholangiocarcinoma

open access: yesAdvanced Science, Volume 13, Issue 32, 9 June 2026.
The m6A reader YTHDF1 drives intrahepatic cholangiocarcinoma (ICC) progression by remodeling the tumor immune microenvironment. YTHDF1 promotes MDSC recruitment via activation of m6A‐FOSL2‐CXCL6/CXCR2 axis, thereby suppressing CD8+ T cell infiltration and function.
Li Luo   +14 more
wiley   +1 more source

Clinical Significance of CK19 Negative Breast Cancer

open access: yes, 2012
Analysis of sentinel lymph nodes (SLNs) by means of One-Step Nucleic Acid Amplification (OSNA) is gaining widespread use as a quick and accurate method. This assay detects the expression level of cytokeratin 19 (CK19) which is present in some but not all
Reiki Nishimura   +7 more
core   +1 more source

WHO 2004 criteria and CK19 are reliable prognostic markers in pancreatic endocrine tumors [PDF]

open access: yes, 2007
BACKGROUND: It is difficult to predict the biologic behavior of pancreatic endocrine tumors in absence of metastases or invasion into adjacent organs.
Kofler, Andreas   +16 more
core   +1 more source

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