Results 141 to 150 of about 1,419,683 (340)

Engineering Bacterial Secretion Systems for Enhanced Tumor Imaging and Surgical Guidance

open access: yesAdvanced Materials, EarlyView.
This study presents a novel contrast agent platform, Streptavidin Associated Salmonella (SAS), for fluorescence image guided surgery. SAS selectively colonizes tumors and secretes streptavidin, enabling precise delineation of invasive tumor margins with prolonged signal retention.
Dohee Lee   +14 more
wiley   +1 more source

Diagnostic problems in fine needle aspiration cytology of fat necrosis within a subcutaneous lipoma

open access: yesJournal of Cytology, 2008
Fat necrosis in subcutaneous lipomas is very unusual and has been reported only occasionally. Literature regarding fine needle aspiration cytology of such a lesion is lacking although fat necrosis is well described in the breast. We came across a case of
Kavishwar Vikas   +3 more
doaj  

Apc mutation induces resistance of colonic cells to lipoperoxide-triggered apoptosis induced by faecal water from haem-fed rats [PDF]

open access: yes, 2006
Recent epidemiological studies suggest that high meat intake is associated with promotion of colon cancer linked to haem-iron intake. We previously reported that dietary haem, in the form of either haemoglobin or meat, promotes precancerous lesions in ...
Guéraud, Françoise   +5 more
core   +1 more source

Reengineering Endogenous Targeting Lipid Nanoparticles (ENDO) for Systemic Delivery of mRNA to Pancreas

open access: yesAdvanced Materials, EarlyView.
ENDO lipid nanoparticles containing cholecalciferol as a fifth component demonstrate mRNA delivery to the pancreas with 99% selectivity, including beta cells. This platform shows minimal toxicity and sustained protein expression for up to 3 days in a dose‐dependent manner, offering a novel approach to pancreas‐specific mRNA delivery and gene therapy ...
Ivan Isaac   +7 more
wiley   +1 more source

Long-term high fat feeding of rats results in increased numbers of circulating microvesicles with pro-inflammatory effects on endothelial cells [PDF]

open access: yes, 2015
Obesity and type 2 diabetes lead to dramatically increased risks of atherosclerosis and CHD. Multiple mechanisms converge to promote atherosclerosis by increasing endothelial oxidative stress and up-regulating expression of pro-inflammatory molecules ...
Bastard   +6 more
core   +1 more source

Stereotyped Subclones Revealed by High‐Density Single‐Cell Lineage Tracing Support Robust Development

open access: yesAdvanced Science, EarlyView.
Based on a well‐established in vitro directed differentiation model and an integrated analysis of high‐density cell lineage trees (CLTs) and single‐cell transcriptomes, it is demonstrated that many subclones are formed by sub‐CLTs resembling each other in terms of both cell type compositions and topological structures.
Xiaoyu Zhang   +14 more
wiley   +1 more source

Self‐Adjusting Engineered Probiotic for Targeted Tumor Colonization and Local Therapeutics Delivery

open access: yesAdvanced Science, EarlyView.
Zou et al. developed an engineered strain of Escherichia coli Nissle 1917 with precise targeting abilities for colonization and on‐demand payload release. The engineered probiotic survives and embolizes tumors only in the presence of more than 5 mM L‐lactate. Furthermore, the introduction of an α‐hemolysin circuit enhances its anti‐tumor effect.
Zhen‐Ping Zou   +8 more
wiley   +1 more source

Elevated Histone Lactylation Mediates Ferroptosis Resistance in Endometriosis Through the METTL3‐Regulated HIF1A/HMOX1 Signaling Pathway

open access: yesAdvanced Science, EarlyView.
This study reveals that histone lactylation, a modification derived from lactate, plays a crucial role in ferroptosis resistance in ectopic endometrial stromal cells. This resistance is mediated via the HIF1A/HMOX1 pathway regulated by METTL3. In vivo, a combination of 2‐DG and erastin shows promise as an effective treatment for endometriosis ...
Zongwen Liang   +8 more
wiley   +1 more source

Colonic Submucosa Targeted Delivery of Probiotic and Rhein for Ulcerative Colitis Treatment

open access: yesAdvanced Science, EarlyView.
A novel orally drug‐probiotic co‐delivery system designated as Rh‐YBS for UC treatment, which highlights three innovations: (i) YPs involves colonic submucosa delivery via M cells; (ii) Rh (drug) promotes the colonization and growth of BS (probiotic) in the colon.
Lingqiang Li   +21 more
wiley   +1 more source

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