Development of Probes for Multiphoton & Sem Microscopies

Abstract

Integrated multiphoton excitation fluorescence and scanning electron microscopies allow us to refine the information on the cell surface receptor distribution. In multiphoton microscopy microscopy allows to reduce the out-of-focus fluorescence, thereby facilitating observations of cell surface phenomena as signals from the interior are rejected. In scanning electron microscopy, distribution of markers can be verified at the ultrastructural level. This integrated approach is particularly powerfull when combined with cryotechniques. Recent advances in instrumentation call for the development of the probes which will be detectable in both methods of microscopy. A step in this direction was made with successful conjugation to antibodies: a 3 nm colloidal gold - the smallest gold bead detectable with SEM on the cell surface and b. tetramethyl rhodamine - suitable for two-photon excitation. In this project other attempts of derivatizations will be pursued.

Funding Agency

• Agency: National Institute of Health (NIH)
• Institute: National Center for Research Resources (NCRR)
• Type: Biotechnology Resource Grants (P41)
• Project #: 3P41RR000570-27S1
• Application #: 2757609
• Budget Start: 1997-10-01
• Budget End: 1998-09-30
• Support Year: 27
• Fiscal Year: 1998

Institution

• Name: University of Wisconsin Madison
• DUNS #: 161202122
• City: Madison
• State: WI
• Country: United States
• Zip Code: 53715

Publications

Malecki, Marek; Putzer, Emily; Sabo, Chelsea et al. (2014) Directed cardiomyogenesis of autologous human induced pluripotent stem cells recruited to infarcted myocardium with bioengineered antibodies. Mol Cell Ther 2:

Malecki, Marek (2014) 'Above all, do no harm': safeguarding pluripotent stem cell therapy against iatrogenic tumorigenesis. Stem Cell Res Ther 5:73

Mavroudi, Maria; Zarogoulidis, Paul; Porpodis, Konstantinos et al. (2014) Stem cells' guided gene therapy of cancer: New frontier in personalized and targeted therapy. J Cancer Res Ther (Manch) 2:22-33

Malecki, Marek; LaVanne, Christine; Alhambra, Dominique et al. (2013) Safeguarding Stem Cell-Based Regenerative Therapy against Iatrogenic Cancerogenesis: Transgenic Expression of DNASE1, DNASE1L3, DNASE2, DFFB Controlled By POLA1 Promoter in Proliferating and Directed Differentiation Resisting Human Autologous Pluripotent J Stem Cell Res Ther Suppl 9:

Malecki, Marek; Tombokan, Xenia; Anderson, Mark et al. (2013) TRA-1-60(+), SSEA-4(+), POU5F1(+), SOX2(+), NANOG(+) Clones of Pluripotent Stem Cells in the Embryonal Carcinomas of the Testes. J Stem Cell Res Ther 3:

Malecki, Marek (2013) Improved targeting and enhanced retention of the human, autologous, fibroblast-derived, induced, pluripotent stem cells to the sarcomeres of the infarcted myocardium with the aid of the bioengineered, heterospecific, tetravalent antibodies. J Stem Cell Res Ther 3:

Malecki, Marek; Dahlke, Jessica; Haig, Melissa et al. (2013) Eradication of Human Ovarian Cancer Cells by Transgenic Expression of Recombinant DNASE1, DNASE1L3, DNASE2, and DFFB Controlled by EGFR Promoter: Novel Strategy for Targeted Therapy of Cancer. J Genet Syndr Gene Ther 4:152

Zarogoulidis, Paul; Darwiche, Kaid; Sakkas, Antonios et al. (2013) Suicide Gene Therapy for Cancer - Current Strategies. J Genet Syndr Gene Ther 4:

Malecki, Marek; Sabo, Chelsea; Putzer, Emily et al. (2013) Recruitment and retention of human autologous CD34+ CD117+ CD133+ bone marrow stem cells to infarcted myocardium followed by directed vasculogenesis: Novel strategy for cardiac regeneration. Mol Cell Ther 1:

Malecki, Marek; Malecki, Bianca (2012) Nuclear routing networks span between nuclear pore complexes and genomic DNA to guide nucleoplasmic trafficking of biomolecules. J Fertili In Vitro 2: