Background and Objectives: Telomerase is a ribonucleoprotein that synthesizes telomeric DNA. Immortalized and carcinoma cells show no loss of telomere length during cell division. Telomerase activity has been demonstrated in carcinomas of various organs, but not in nonneoplastic tissues. In patients
Immunity in esophageal carcinoma
β Scribed by S. H. Advani; P. M. Kutty; R. Gopal; S. Swaroop; C. N. Nair; K. A. Dinshaw; S. R. Damle; J. S. Nadkarni; P. N. Akolkar; B. P. Gothaskar; J. J. Vyas; P. B. Desai
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 457 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0022-4790
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β¦ Synopsis
Abstract
In carcinoma of the esophagus, response to in vivo sensitization with recall antigens and DNCB was markedly depressed with 13% and 16% positivity respectively. Similarly, the number of Tβcells was found to be significantly low (24 Β± 14) as compared to normal control (61 Β± 23). Blastogenesis index with PHA was only 1.75 Β± 1.04 in contrast to normal of 6.79 Β± 2.57. This depression was independent of serum albumin level and body weight. Cellβmediated immunity was further depressed following radiotherapy and did not improve following enteral alimentation for 3 weeks. In untreated patients, there was a significant rise in levels of IgA (298 Β± 184 mg/100 ml) as compared to normal (154 Β± 54 mg/100 ml). Levels of IgA did show a downward trend following enteral hyperalimentation. Circulating immune complexes and serum CEA level were elevated in almost 50% of patients. These data confirm the influence of tumorβrelated impairment of cellβmediated immunity while nutrition appears to affect IgA levels.
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