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Comparison of Exendin-4 and Its Single Amino Acid Substitutions as Parent Peptides for GLP-1 Receptor Imaging Probes.
Molecules
February 2025
Department of Biofunctional Analysis, Graduate School of Pharmaceutical Sciences, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki 569-1094, Osaka, Japan.
Glucagon-like peptide-1 receptor (GLP-1R) is an emerging critical target for the diagnosis and treatment of various diseases. Radiolabeled exendin-4 (Ex-4), a GLP-1R agonist, has been widely used as an imaging probe. However, its potential to induce hypoglycemia, especially in patients with insulinoma, limits its applicability.
View Article and Find Full Text PDFEfficient delivery of anlotinib and radioiodine by long circulating nano-capsules for active enhanced suppression of anaplastic thyroid carcinoma.
J Nanobiotechnology
March 2025
Department of Gastroenterology, National Clinical Research Center for Digestive Diseases, The First Affiliated Hospital of Naval Medical University/Changhai Hospital, Naval Medical University, Shanghai, 200433, China.
I therapy is clinically unfeasible for anaplastic thyroid carcinoma (ATC), due to lack of active targets and ATC's resistance to radiation. Novel radionuclide-labeled targeted nano-drug delivery systems have exhibited the potential of prominent tumor imaging and remedy. Capitalizing on recent research achievements in nanotechnology and nuclear medicine, we sought to develop a radiolabeled nano-drug, which could specifically accumulate in ATCs via tumor-selective targeted delivery system and which could treat the tumors with both targeted and radionuclide therapeutics.
View Article and Find Full Text PDF68Ga-labeled fluorinated benzamide derivatives for positron emission tomography imaging of melanoma.
PLoS One
February 2025
College of Pharmacy and Research Institute of Pharmaceutical Science, Gyeongsang National University, Jinju, Korea.
Malignant melanoma tends to aggressively metastasize, resulting in it being a potentially lethal form of skin cancer with high mortality rates. The advanced stages of melanoma have a very poor prognosis because of the high tendency for metastasis, and there is therefore, a strong desire to develop efficient technology for the early detection of melanoma. The benzamide structure, which contains aromatic ring and amine group, exhibits a high affinity for melanin, making it a promising agent for targeting melanoma in diagnostic and therapeutic applications.
View Article and Find Full Text PDFEvaluation of New-Modelled Recombinant Human Insulin (rh-Insulin) Analog Expressed in E. coli Using Radioiodination Technique Followed by In Vivo Biodistribution in Diabetes-Induced Mice.
J Labelled Comp Radiopharm
February 2025
Labeled Compounds Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Egypt.
Biologists have significantly improved various techniques for confirming the physiological and pharmacological activity of new proteins produced by recombinant DNA technology, such as Western blotting, ELISA, and flow cytometry. Although these methods are costly and comparatively low in efficiency, our study focuses on developing a real-time approach to investigate the physiological activity of our new recombinant human insulin (rh-Insulin), which is expressed in Escherichia coli. An in vivo biodistribution study of radioiodinated rh-Insulin (I-rh-Insulin) was conducted in diabetic-induced mice, exploiting the capability of tyrosine residues in protein molecules to undergo electrophilic substitution of hydrogen atoms with traceable I atoms.
View Article and Find Full Text PDFHyper-porous encapsulation of microbes for whole cell biocatalysis and biomanufacturing.
Microb Cell Fact
February 2025
Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore.
Biocatalysis using whole cell biotransformation presents an alternative approach to producing complex molecules when compared to traditional synthetic chemical processes. This method offers several advantages, including scalability, self-contained co-factor recycling systems, the use of cost-effective raw materials, and reduced purification costs. Notably, biotransformation using microbial consortia provides benefits over monocultures by enhancing biosynthesis efficiency and productivity through division of labor and a reduction in metabolic burden.
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