Synthesis of Bifunctional Integrin-Binding Peptides Containing PEG Spacers of Defined Length for Non-Viral Gene Delivery
作者:Michael A. Pilkington-Miksa、Supti Sarkar、Michele J. Writer、Susie E. Barker、Parviz Ayazi Shamlou、Stephen L. Hart、Helen C. Hailes、Alethea B. Tabor
DOI:10.1002/ejoc.200701188
日期:2008.6
series of bifunctionalpeptides bearing short PEGspacers of defined structure as components of lipopolyplex genedelivery vectors. Short, high-yielding routes to a series of PEG-amino acids are described: these PEG-amino acids can be used in varying combinations to afford bifunctionalpeptides with varying lengths of PEGspacers by using standard solid-phase synthesis techniques. A series of lipopolyplexes
A multi-branched dnig conjugate of formula (I) or a pharmaceutically acceptable salt thereof. In the formula, R is an organic center, POLY is a polymer, L is a multivalent linker, T is a targeting molecule, D is an active agent, and q is any integer between 3 and 8. The symbol “*” in L represents a junction point of the multivalent linker L and the targeting molecule T, “#” represents a junction point of the multivalent linker L and the active agent D, and “%” represents a junction point of the multivalent linker L and POLY. 1 is any integer between 2 and 20, and m and n are each an integer between 0 and 10. T is iRGD, cRGD, tLyp-1, Lyp-1, RPARPAR, Angiopep2, or GE11. D is a camptothecin drug.
Materials for the delivery of biologically-active material to cells
申请人:Hailes Claire Helen
公开号:US20050245446A1
公开(公告)日:2005-11-03
The invention provides a lipid of general formula (I) or (II):
wherein X
1
, X
2
and R
1
to R
5
are as defined herein. Such lipids are used to form complexes with a biologically-active material such as a nucleic acid, peptide or small molecule for delivering the biologically-active material to cells. The complexes may incorporate an integrin-binding peptide and, when the biologically-active material is DNA, thereby constitute a LID complex.
Responsive Peptide Nanofibers with Theranostic and Prognostic Capacity
作者:Bingbing Sun、Xiaoping Guo、Mei Feng、Shoupeng Cao、Haowen Yang、Hanglong Wu、Marleen H. M. E. van Stevendaal、Roy A. J. F. Oerlemans、Jinning Liang、Yiqiang Ouyang、Jan C. M. van Hest
DOI:10.1002/anie.202208732
日期:2022.9.19
A PEGylated porphyrin-peptide (PHHPEG6) building block self-assembled into nanofibers (NFs), which formed aggregates in the acidic tumor microenvironment. The pH-induced aggregation of PHHPEG6 NFs resulted in enhanced 1O2 generation efficiency and prolonged tumor retention, thus enabling control over the entire PDT process, from the visualization of photosensitizer accumulation to actual PDT and subsequent