Advances in Clinical and Experimental Medicine

Title abbreviation: Adv Clin Exp Med
JCR Impact Factor (IF) – 2.1
5-Year Impact Factor – 2.2
Scopus CiteScore – 3.4 (CiteScore Tracker 3.4)
Index Copernicus  – 161.11; MEiN – 140 pts

ISSN 1899–5276 (print)
ISSN 2451-2680 (online)
Periodicity – monthly

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Advances in Clinical and Experimental Medicine

2016, vol. 25, nr 4, July-August, p. 611–615

doi: 10.17219/acem/62430

Publication type: original article

Language: English

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The Formation of Blood Vessel After the Administration of the Plasmid Encoding Ang-1 Gene in Fischer Rats

Jan P. Skóra1,A,B,C,D,E,F, Tomasz Płonek2,B,C,D,E, Piotr Barć1,B,C,D, Dagmara Baczyńska3,4,B,C, Agata Radwańska4,B,C, Artur Pupka1,A,C, Krzysztof Korta1,B,D, Marek Ussowicz5,C,E, Łukasz Strożecki6,C, Diana Kupczyńska-Markiewicz1,A, Agnieszka Hałoń7,A,B,C,E,F

1 Department of Vascular, General and Transplantation Surgery, Wroclaw Medical University, Poland

2 Department of Cardiac Surgery, Wroclaw Medical University, Poland

3 Department of Forensic Medicine, Molecular Techniques Unit, Wroclaw Medical University, Poland

4 Wrovasc – Integrated Cardiovascular Centre, Regional Specialist Hospital in Wrocław, Research and Development Centre, Poland

5 Department of Pediatric BMT, Oncology and Hematology, Wroclaw Medical University, Poland

6 Department of Anaesthesiology and Intensive Therapy, Wroclaw Medical University, Poland

7 Department of Pathology, Wroclaw Medical University, Poland


Background. Chronic limb ischemia is a serious clinical problem. Patients who do not qualify for standard treatment may benefit from novel gene therapies.
Objectives. This study evaluated angiogenesis following intramuscular injections of angiogenic plasmid Ang-1 in Fisher rats.
Material and Methods. Twenty rats had plasmids injected intramuscularly in their hind limbs. The study group consisted of 10 animals which received the Ang-1 plasmid, while the control group consisted of 10 rats that received an empty plasmid. All the animals were euthanized after 12 weeks and tissue samples from the hind limb thigh muscles and internal organs were harvested for histological and immunohistochemical examinations. To assess the angiogenesis the number of vessels in the hind limb muscles visualized by the SMA and FVIII markers was counted for each animal in five separate microscopic fields.
Results. There were no pathological lesions or any signs of neoplastic angiogenesis in any of the 20 rats. The number of vessels visualized by the FVIII marker in the study group was two times higher than in the control group (median: 12, range: 7–25 vs. median: 6, range: 2–15; p < 0.0001). The median estimated that the number of vessels visualized by the SMA marker is 63% higher in the study group compared to the control group (median: 6.5, range: 1–12 vs. median: 4, range: 0–10; p = 0.0008).
Conclusion. Intramuscular injections of Ang-1 plasmids induced angiogenesis in the rat hind limb muscles.

Key words

angiogenesis, lower limb ischemia, rats, proangiogenic factors

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