Background: Diffuse interstitial pneumonias are considered as a group of multiple affections characterized by challenging diagnoses because of the lack of specific clinical signs. Radiologic investigations highlight the diagnoses in most of the cases but bronchoalveolar lavage plays a key role in the diagnostic diagram. We aim to compare the immunocytochemical technique and the flow cytometry in the phenotyping of lymphocytic alveolitis.
Methods: We described a series of 32 lymphocytic alveolitis, which were analyzed using immunocytochemistry and flow cytometry.
Results: We found a good reproducibility between the immunocytochemistry performed on smears and cytoblocks (kappa=0.7) and a poor reproducibility between immunocytochemistry and flow cytometry (kappa=0.35).
Conclusion: Our study emphasized on the poor reproducibility between immunocytochemistry and flow cytometry. Further studies about the reliability of both techniques are needed especially in discordant cases.
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http://dx.doi.org/10.1016/j.annpat.2017.07.002 | DOI Listing |
Alzheimers Dement
December 2024
Bernard and Irene Schwartz Center for Biomedical Imaging, New York University Grossman School of Medicine, New York, NY, USA.
Background: Amyloid related imaging abnormalities (ARIA), a group of neuropathological features seen in anti-amyloid immunotherapy patients, arises partly from CAA (Aβ buildup in blood vessels). Squirrel monkeys (SQMs), developing prominent age-related CAA exceeding brain Aβ, offer a unique NHP model for ARIA study. Evaluating edema-related neurobiological defects (ARIA-E) involves preferential use of T-weighted (T-w) and flow-attenuated inversion recovery (FLAIR) MRI while T*-weighted (T*-w) MRI is better suited for investigating iron-related pathology like microbleeds, hemorrhaging, and iron-homing in plaques.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Columbia University Irving Medical Center, New York, NY, USA.
Background: Genetic studies indicate a causal role for microglia, the innate immune cells of the central nervous system (CNS), in Alzheimer's disease (AD). Despite the progress made in identifying genetic risk factors, such as CD33, and underlying molecular changes, there are currently limited treatment options for AD. Based on the immune-inhibitory function of CD33, we hypothesize that inhibition of CD33 activation may reverse microglial suppression and restore their ability to resolve inflammatory processes and mitigate pathogenic amyloid plaques, which may be neuroprotective.
View Article and Find Full Text PDFBiomark Res
January 2025
Department of Breast Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.
Background: Although immunotherapy has achieved great progress in advanced triple-negative breast cancer (TNBC), there are still numerous patients who do not benefit from immunotherapy. Therefore, identification of the key molecule that induces immune escape and clarification of its specific mechanism in TNBC are urgently needed.
Methods: In this research, single cell sequencing and bulk sequencing were conducted for biomarker screening.
J Transl Med
January 2025
Department of General Surgery of Otorhinolaryngology Head and Neck, The Sixth Affiliated Hospital, Sun Yat-Sen University, No.26, Erheng Road, Yuancun, Tianhe District, Guangzhou, 510655, China.
Purpose: Tumor-associated macrophages (TAMs) are pivotal immune cells within the tumor microenvironment (TME), exhibiting dual roles across various cancer types. Depending on the context, TAMs can either suppress tumor progression and weaken drug sensitivity or facilitate tumor growth and drive therapeutic resistance. This study explores whether targeting TAMs can suppress the progression of head and neck squamous cell carcinoma (HNSCC) and improve the efficacy of chemotherapy.
View Article and Find Full Text PDFMol Cancer
January 2025
Foshan Maternity and Child Healthcare Hospital; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 515150, China.
Background: Intratumor-resident bacteria represent an integral component of the tumor microenvironment (TME). Microbial dysbiosis, which refers to an imbalance in the bacterial composition and bacterial metabolic activities, plays an important role in regulating breast cancer development and progression. However, the impact of specific intratumor-resident bacteria on tumor progression and their underlying mechanisms remain elusive.
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