Abstract:
:The antitumour and immunosuppressive activities of spermine dialdehyde (SDA), a synthetic, oxidized form of spermine, were examined using L1210 cell lines and murine bone marrow cells. SDA acted as a high affinity substrate for aldehyde dehydrogenase (ADH) derived from different sources, with kinetic profiles similar to other aldehyde substrates. The murine leukaemic, cyclophosphamide-resistant L1210/CPA cells, having high levels of intracellular ADH activity, were less sensitive to SDA compared to ADH deficient L1210/O cells as measured by [3H]-thymidine incorporation in proliferation studies. Furthermore, pretreatment of L1210/CPA cells with the ADH inhibitor, diethyl aminobenzaldehyde (DEAB), resulted in potentiation of the SDA response. Murine bone marrow cells were more resistant to SDA than splenic T cells. However, addition of DEAB to bone marrow cultures potentiated the sensitivity of progenitor cells to SDA, as measured by colony formation. The results indicate that levels of ADH in the target tissues would determine the potency of SDA and subsequently offer selectivity and specificity to the therapeutic potentials of this putative purging agent.
journal_name
Pharmacol Resjournal_title
Pharmacological researchauthors
Kazmi SM,Li D,Koop K,Conant J,Lau CYdoi
10.1016/1043-6618(92)90675-2keywords:
subject
Has Abstractpub_date
1992-05-01 00:00:00pages
383-92issue
4eissn
1043-6618issn
1096-1186pii
1043-6618(92)90675-2journal_volume
25pub_type
杂志文章abstract:INTRODUCTION:Erectile dysfunction (ED) is frequently encountered in patients with arterial hypertension and there is a recent functional correlation between the expression of thermoreceptor channels TRPM8 (melastatin 8) and alterations in blood pressure in hypertension. The aim of this study was to investigate the func...
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journal_title:Pharmacological research
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abstract::Cardamom seeds are widely used for flavouring purposes in food and as carminative. Little information has been reported on their pharmacological and toxicological properties or, for their volatile oil which constitutes about 5% of the seed's total weight. A comparative study of the anti-inflammatory activity of the oi...
journal_title:Pharmacological research
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doi:10.1006/phrs.1996.0067
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journal_title:Pharmacological research
pub_type: 杂志文章
doi:10.1006/phrs.1996.0073
更新日期:1996-09-01 00:00:00
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abstract::Monoclonal antibodies (mAb) have revolutionised the way in which we treat disease. From cancer to autoimmunity, antibody therapy has been responsible for some of the most impressive clinical responses observed in the last 2 decades. A key component of this success has been their generally low levels of toxicity, and u...
journal_title:Pharmacological research
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abstract::To minimize irreversible brain injury after acute ischemic stroke (AIS), the time to treatment (i.e., treatment delay) should be minimized. However, thus far, all cytoprotective clinical trials have failed. Analysis of literature identified short treatment durations (≤72 h) as a common motif among completed cytoprotec...
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journal_title:Pharmacological research
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