Functional, biochemical and morphological studies on human bronchi after cryopreservation
| Autor: | Esteban J. Morcillo, Benjamín Sarriá, Charles Advenier, Joelle Moreau, Emmanuel Naline, Julio Cortijo, José M. Cerdá |
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| Rok vydání: | 1995 |
| Předmět: |
Adult
Male Pathology medicine.medical_specialty Lung Neoplasms Inositol Phosphates Bronchi In Vitro Techniques Biology Tritium Cryopreservation Andrology chemistry.chemical_compound Fresh Tissue Isoprenaline medicine Humans Dimethyl Sulfoxide Rolipram Aged Pharmacology Microscopy Middle Aged Acetylcholine chemistry Female Sodium nitroprusside medicine.symptom Histamine Muscle Contraction Research Article medicine.drug Muscle contraction |
| Zdroj: | British Journal of Pharmacology. 116:2569-2574 |
| ISSN: | 0007-1188 |
| DOI: | 10.1111/j.1476-5381.1995.tb17209.x |
| Popis: | 1. Human isolated bronchi have been investigated as fresh tissue or after storage (7 and 30 days) at -196 degrees C in foetal calf serum containing 1.8 M dimethyl sulphoxide. 2. After cryopreservation, the maximal contractile response to acetylcholine (3 mM) was reduced (approximately 25%) but the difference did not reach significance statistically. Maximal responses to other spasmogens tested (histamine, [Nle10]NKA(4-10), bradykinin, leukotriene D4, U46619, and KCl) did not differ between unfrozen and frozen/thawed tissues. The sensitivity of cryopreserved tissues to the constrictor agents tested was similar to that of fresh tissues. 3. The accumulation of inositol phosphates produced by acetylcholine in human bronchus in vitro was similar in fresh and cryostored (30 days) tissues. 4. Relaxant responses of acetylcholine (0.3 microM)-precontracted preparations to theophylline, isoprenaline, rolipram and sodium nitroprusside were unchanged after storage with the exception of the sensitivity to rolipram which was diminished in the 30-days cryostorage group. 5. Light microscopic examination of sections taken from 30 days cryostored tissues indicates that the epithelium, submucosal tissue and smooth muscle were well preserved. 6. These experiments suggest that cryopreservation of human bronchi results in maintenance of several morphological, functional (contraction/relaxation) and biochemical properties. |
| Databáze: | OpenAIRE |
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