Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes
Organofosfatni insekticidi - toksični efekti i bioanalitički testovi za evaluaciju toksičnosti tokom procesa degradacije
Autori
Čolović, Mirjana B.Krstić, Danijela Z.
Vasić, Vesna M.
Bondžić, Aleksandra M.
Ušćumlić, Gordana
Petrović, Slobodan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Organophosphorus insecticides have been the most applied group of insectcides for the last two decades. Their main toxic effects are related to irreversible inactivation of acetylcholinesterase (AChE). Actually, they covalently bind to serine OH group in the enzyme active site forming phosphorylated enzyme that cannot hydrolyze acetylcholine. Organophosphorus insecticides in the environment undergo the natural degradation pathway including mainly homogeneous and heterogeneous hydrolysis (especially at high pH) generating non-inhibiting products. Additionally, thio organophosphates are easily oxidized by naturally present oxidants and UV light, forming more toxic and stable oxons. Thus, oxidative degradation procedures, generally referred as advanced oxidation processes (AOP), have been applied for their efficient removal from contaminated waters. The most applied bioassays to monitor the organophosphate toxicity, i.e., the detoxification degree during AOP are Vibrio fischeri and AChE b...ioassays. Vibrio fischeri toxicity test exploits bioluminescence as the measure of luciferase activity of this marine bacterium, whereas AChE bioassay is based on AChE activity inhibition. Both bioanalytical techniques are rapid (several minutes), simple, sensitive and reproducible. Vibrio fischeri test seems to be a versatile indicator of toxic compounds generated in AOP for organophosphorus insecticides degradation. However, detection of neurotoxic AChE inhibitors, which can be formed in AOP of some organophosphates, requires AChE bioassays. Therefore, AChE toxicity test is more appropriate for monitoring the degradation processes of thio organophosphates, because more toxic oxo organophosphates might be formed and overlooked by Vibrio fischeri bioluminescence inhibition. In addition, during organophosphates removal by AOP, compounds with strong genotoxic potential may be formed, which cannot be detected by standard toxicity tests. For this reason, determination of incidence of micronuclei and cell proliferation index in cultivated human lymphocytes and fibroblasts is suitable for evaluation of organophosphorus insecticides and their break down products inducing cytogenetic damage.
U ovoj studiji je dat pregled bioanalitičkih tehnika za procenu toksičnosti i detekciju organofosfatnih insekticida i proizvoda njihove degradacije koji nastaju tokom unapređenih procesa oksidacije za uklanjanje insekticida iz vode. Posebna pažnja je posvećena acetilholinesteraznim bioesejima, koji se zasnivaju na inhibiciji enzimske aktivnosti, za detekciju neurotoksičnih jedinjenja formiranih tokom degradacije organofosfata u oksidacionim procesima za prečišćavanje voda, kao i testiranju genotoksičnosti organofosfatnih insekticida i proizvoda njihove transformacije. Opisan je i mehanizam toksičnog delovanja organofosfatnih jedinjenja kao specifičnih inhibitora acetilholinesteraze, enzima koji katalizuje hidrolizu neurotransmitera acetilholina u holinergičkim sinapsama.
Ključne reči:
Organophosphorus insecticides / Acetylcholinesterase / Degradation / Advanced oxidation processes / Bioassays / Toxicity / Genotoxicity / organofosfatni insekticidi / acetilholinesteraza / degradacija / unapređeni procesi oksidacije / bioeseji / toksičnost / genotoksičnostIzvor:
Hemijska industrija, 2013, 67, 2, 217-230Izdavač:
- Association of Chemical Engineers of Serbia
Finansiranje / projekti:
- Istraživanja interakcija enzima sa toksičnim i farmakološki aktivnim molekulima (RS-MESTD-Basic Research (BR or ON)-172023)
DOI: 10.2298/HEMIND120323060C
ISSN: 0367-598X
WoS: 000322208200005
Scopus: 2-s2.0-84877704139
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Čolović, Mirjana B. AU - Krstić, Danijela Z. AU - Vasić, Vesna M. AU - Bondžić, Aleksandra M. AU - Ušćumlić, Gordana AU - Petrović, Slobodan PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2373 AB - Organophosphorus insecticides have been the most applied group of insectcides for the last two decades. Their main toxic effects are related to irreversible inactivation of acetylcholinesterase (AChE). Actually, they covalently bind to serine OH group in the enzyme active site forming phosphorylated enzyme that cannot hydrolyze acetylcholine. Organophosphorus insecticides in the environment undergo the natural degradation pathway including mainly homogeneous and heterogeneous hydrolysis (especially at high pH) generating non-inhibiting products. Additionally, thio organophosphates are easily oxidized by naturally present oxidants and UV light, forming more toxic and stable oxons. Thus, oxidative degradation procedures, generally referred as advanced oxidation processes (AOP), have been applied for their efficient removal from contaminated waters. The most applied bioassays to monitor the organophosphate toxicity, i.e., the detoxification degree during AOP are Vibrio fischeri and AChE bioassays. Vibrio fischeri toxicity test exploits bioluminescence as the measure of luciferase activity of this marine bacterium, whereas AChE bioassay is based on AChE activity inhibition. Both bioanalytical techniques are rapid (several minutes), simple, sensitive and reproducible. Vibrio fischeri test seems to be a versatile indicator of toxic compounds generated in AOP for organophosphorus insecticides degradation. However, detection of neurotoxic AChE inhibitors, which can be formed in AOP of some organophosphates, requires AChE bioassays. Therefore, AChE toxicity test is more appropriate for monitoring the degradation processes of thio organophosphates, because more toxic oxo organophosphates might be formed and overlooked by Vibrio fischeri bioluminescence inhibition. In addition, during organophosphates removal by AOP, compounds with strong genotoxic potential may be formed, which cannot be detected by standard toxicity tests. For this reason, determination of incidence of micronuclei and cell proliferation index in cultivated human lymphocytes and fibroblasts is suitable for evaluation of organophosphorus insecticides and their break down products inducing cytogenetic damage. AB - U ovoj studiji je dat pregled bioanalitičkih tehnika za procenu toksičnosti i detekciju organofosfatnih insekticida i proizvoda njihove degradacije koji nastaju tokom unapređenih procesa oksidacije za uklanjanje insekticida iz vode. Posebna pažnja je posvećena acetilholinesteraznim bioesejima, koji se zasnivaju na inhibiciji enzimske aktivnosti, za detekciju neurotoksičnih jedinjenja formiranih tokom degradacije organofosfata u oksidacionim procesima za prečišćavanje voda, kao i testiranju genotoksičnosti organofosfatnih insekticida i proizvoda njihove transformacije. Opisan je i mehanizam toksičnog delovanja organofosfatnih jedinjenja kao specifičnih inhibitora acetilholinesteraze, enzima koji katalizuje hidrolizu neurotransmitera acetilholina u holinergičkim sinapsama. PB - Association of Chemical Engineers of Serbia T2 - Hemijska industrija T1 - Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes T1 - Organofosfatni insekticidi - toksični efekti i bioanalitički testovi za evaluaciju toksičnosti tokom procesa degradacije EP - 230 IS - 2 SP - 217 VL - 67 DO - 10.2298/HEMIND120323060C ER -
@article{ author = "Čolović, Mirjana B. and Krstić, Danijela Z. and Vasić, Vesna M. and Bondžić, Aleksandra M. and Ušćumlić, Gordana and Petrović, Slobodan", year = "2013", abstract = "Organophosphorus insecticides have been the most applied group of insectcides for the last two decades. Their main toxic effects are related to irreversible inactivation of acetylcholinesterase (AChE). Actually, they covalently bind to serine OH group in the enzyme active site forming phosphorylated enzyme that cannot hydrolyze acetylcholine. Organophosphorus insecticides in the environment undergo the natural degradation pathway including mainly homogeneous and heterogeneous hydrolysis (especially at high pH) generating non-inhibiting products. Additionally, thio organophosphates are easily oxidized by naturally present oxidants and UV light, forming more toxic and stable oxons. Thus, oxidative degradation procedures, generally referred as advanced oxidation processes (AOP), have been applied for their efficient removal from contaminated waters. The most applied bioassays to monitor the organophosphate toxicity, i.e., the detoxification degree during AOP are Vibrio fischeri and AChE bioassays. Vibrio fischeri toxicity test exploits bioluminescence as the measure of luciferase activity of this marine bacterium, whereas AChE bioassay is based on AChE activity inhibition. Both bioanalytical techniques are rapid (several minutes), simple, sensitive and reproducible. Vibrio fischeri test seems to be a versatile indicator of toxic compounds generated in AOP for organophosphorus insecticides degradation. However, detection of neurotoxic AChE inhibitors, which can be formed in AOP of some organophosphates, requires AChE bioassays. Therefore, AChE toxicity test is more appropriate for monitoring the degradation processes of thio organophosphates, because more toxic oxo organophosphates might be formed and overlooked by Vibrio fischeri bioluminescence inhibition. In addition, during organophosphates removal by AOP, compounds with strong genotoxic potential may be formed, which cannot be detected by standard toxicity tests. For this reason, determination of incidence of micronuclei and cell proliferation index in cultivated human lymphocytes and fibroblasts is suitable for evaluation of organophosphorus insecticides and their break down products inducing cytogenetic damage., U ovoj studiji je dat pregled bioanalitičkih tehnika za procenu toksičnosti i detekciju organofosfatnih insekticida i proizvoda njihove degradacije koji nastaju tokom unapređenih procesa oksidacije za uklanjanje insekticida iz vode. Posebna pažnja je posvećena acetilholinesteraznim bioesejima, koji se zasnivaju na inhibiciji enzimske aktivnosti, za detekciju neurotoksičnih jedinjenja formiranih tokom degradacije organofosfata u oksidacionim procesima za prečišćavanje voda, kao i testiranju genotoksičnosti organofosfatnih insekticida i proizvoda njihove transformacije. Opisan je i mehanizam toksičnog delovanja organofosfatnih jedinjenja kao specifičnih inhibitora acetilholinesteraze, enzima koji katalizuje hidrolizu neurotransmitera acetilholina u holinergičkim sinapsama.", publisher = "Association of Chemical Engineers of Serbia", journal = "Hemijska industrija", title = "Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes, Organofosfatni insekticidi - toksični efekti i bioanalitički testovi za evaluaciju toksičnosti tokom procesa degradacije", pages = "230-217", number = "2", volume = "67", doi = "10.2298/HEMIND120323060C" }
Čolović, M. B., Krstić, D. Z., Vasić, V. M., Bondžić, A. M., Ušćumlić, G.,& Petrović, S.. (2013). Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes. in Hemijska industrija Association of Chemical Engineers of Serbia., 67(2), 217-230. https://doi.org/10.2298/HEMIND120323060C
Čolović MB, Krstić DZ, Vasić VM, Bondžić AM, Ušćumlić G, Petrović S. Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes. in Hemijska industrija. 2013;67(2):217-230. doi:10.2298/HEMIND120323060C .
Čolović, Mirjana B., Krstić, Danijela Z., Vasić, Vesna M., Bondžić, Aleksandra M., Ušćumlić, Gordana, Petrović, Slobodan, "Organophosphorus insecticides: Toxic effects and bioanalytical tests for evaluating toxicity during degradation processes" in Hemijska industrija, 67, no. 2 (2013):217-230, https://doi.org/10.2298/HEMIND120323060C . .