Sökning: "single-stranded oligonucleotides"

Visar resultat 11 - 15 av 22 avhandlingar innehållade orden single-stranded oligonucleotides.

1. 11. Cationic Interactions with Nucleic Acids With Focus on Anticancer Active Platinum(II) Complexes

   Författare :Åse Sykfont Snygg; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; in-line cleavage; Cisplatin; oxaliplatin; circular dichroism; DENSPM; polyamines; siRNA; pseudoknot; RNA; thermal melting; anticancer active Pt II complex; DNA;

   Sammanfattning : It is well documented that the antitumour activity of the Pt(II)-complex cisplatin, and similar anticancer active complexes, is a result of metalation of DNA, and thereby inhibition of cell proliferation. Since nucleic acids are polyanions at physiological pH, the rate of adduct formation with positively charged complex, as the hydrolyzed Pt(II) complexes studied in this work, is influenced by the ionic environment surrounding the polymer. LÄS MER

3. 12. Interactions of Anticancer Active Platinum(II) Complexes with DNA

   Författare :Johan Kjellström; Bröstcancer-genetik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; polyelectrolyte; medium effects; salt dependence; DSC; CD; HPLC; oligonucleotide; hairpin; DNA; anticancer active platinum II compounds; kinetics; mechanism; Oorganisk kemi; Cytology; oncology; cancerology; Cytologi; onkologi; cancer;

   Sammanfattning : The kinetics and mechanism for interactions of the anticancer active platinum(II) complexes cis-[PtCl2(NH3)2)], cis-[PtCl2(NH3)(c-C6H11NH2)], and trans-[PtCl2-(NH3)(quinoline)] with DNA have been studied using a combination of HPLC, circular dichroism (CD), UV/vis spectroscopy, and differential scanning calorimetry (DSC). Reactions of the monoaqua forms (charge = +1) of these complexes with single-stranded DNA oligonucleotides, typically between 13-17 bases long, were found to depend on i) the composition of the reaction medium, ii) the exact nature and location of the platination target, and iii) on the DNA structure. LÄS MER

4. 13. Genetic Analyses using Rolling Circle or PCR Amplified Padlock Probes

   Författare :Johan Banér; Sanjay Tyagi; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Molecular medicine; Padlock probes; rolling circle amplification; PCR; genotyping; microarray; expression analysis; Molekylärmedicin; Molecular medicine genetics and pathology ; Molekylär medicin genetik och patologi ; Medical Genetics; medicinsk genetik;

   Sammanfattning : Padlock probes are useful in a variety of genetic applications, some of which require that the probes are amplified in order to generate detectable signals. Two general padlock amplification methods, RCA and PCR, are discussed in this thesis. LÄS MER

5. 14. Nucleic acid in gene delivery and gene regulation

   Författare :Pedro Moreno; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The concept of gene therapy, initially attributed to a technology that would allow the correction of inherited genetic disease, has evolved over the years. The realization of the immense technical hurdles to achieve genetic correction led to a broadening of the concept now including the transfer of genetic material whose expression will counteract, mitigate or revert a disease phenotype. LÄS MER

7. 15. Genotyping and Mutation Detection In Situ : Development and application of single-molecule techniques

   Författare :Ida Grundberg; Mats Nilsson; Ulf Landegren; Olli-Pekka Kallioniemi; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; padlock probes; in situ; rolling circle amplification; mRNA; genotyping; mutation detection; cancer; tissue sections; diagnostics; single-molecule; single-cell; microscopy; Molecular medicine genetics and pathology ; Molekylär medicin genetik och patologi ; Molekylär medicin; Molecular Medicine;

   Sammanfattning : The human body is composed of trillions of cells closely working together to maintain a functional organism. Every cell is unique in molecular composition and can acquire genetic variations that might cause it to turn pathological. LÄS MER