TY - JOUR
T1 - Salicylate protects hearing and kidney function from cisplatin toxicity without compromising its oncolytic action
AU - Li, Geming
AU - Sha, Su Hua
AU - Zotova, Elena
AU - Arezzo, Joseph
AU - Van De Water, Thomas R.
AU - Schacht, Jochen
N1 - Funding Information:
This research was supported by research grants DC-03685 from the National Institute on Deafness and Other Communication Disorders, National Institutes of Health (to JS); and from the Singer Foundation of Beth Israel Medical Center (to TV). Address reprint requests to: Dr. Thomas R. Van De Water, Department of Otolaryngology, University of Miami Ear Institute, 1600 NW 10th Ave., RMSB 3160, Miami, FL 33136. E-mail: tvandewater@med.miami.edu
PY - 2002
Y1 - 2002
N2 - Salicylate has recently been demonstrated to protect against the auditory and vestibular side effects of aminoglycoside antibiotics. Similarities in the toxic mechanisms suggest salicylate as a treatment strategy to prevent the ototoxic side effects of cisplatin (CDDP). We first tested protection of the inner ear in Wistar rats receiving a single infusion of 16 mg CDDP/kg body weight with or without treatment with 100 mg/kg salicylate (bid) for 5 days beginning one day before the CDDP infusion. Cisplatin induced a threshold shift of more than 30 dB (at 14 kHz; measured by auditory evoked brain stem response) that was significantly reduced by salicylate. We then examined the protective potential of salicylate on the cochlea, peripheral nerves, and kidney in a rat model of breast cancer-Fisher344 rats implanted with highly metastatic MTLn3 breast cancer cells. Animals received 3 × 5 mg CDDP/kg (given every third day), and salicylate was administered at 100 mg/kg (bid) from 2 days before to 3 days after CDDP treatment. Salicylate significantly attenuated the CDDP-induced threshold shift from approximately 20 dB (at 16 and 24 kHz) to approximately 5 dB, and drastically reduced the loss of cochlear outer hair cells. Likewise, salicylate protected kidney function (measured as plasma blood urea nitrogen and creatinine levels) from CDDP toxicity. Protection of nerve conduction velocities of both sensory and motor nerves was minimal. The chemotherapeutic efficacy of CDDP on suppression of tumor mass and cancer cell metastasis remained unaffected by salicylate. The results suggest that administration of salicylate may become the basis of an effective therapeutic intervention against the ototoxic and nephrotoxic side effects associated with CDDP chemotherapy.
AB - Salicylate has recently been demonstrated to protect against the auditory and vestibular side effects of aminoglycoside antibiotics. Similarities in the toxic mechanisms suggest salicylate as a treatment strategy to prevent the ototoxic side effects of cisplatin (CDDP). We first tested protection of the inner ear in Wistar rats receiving a single infusion of 16 mg CDDP/kg body weight with or without treatment with 100 mg/kg salicylate (bid) for 5 days beginning one day before the CDDP infusion. Cisplatin induced a threshold shift of more than 30 dB (at 14 kHz; measured by auditory evoked brain stem response) that was significantly reduced by salicylate. We then examined the protective potential of salicylate on the cochlea, peripheral nerves, and kidney in a rat model of breast cancer-Fisher344 rats implanted with highly metastatic MTLn3 breast cancer cells. Animals received 3 × 5 mg CDDP/kg (given every third day), and salicylate was administered at 100 mg/kg (bid) from 2 days before to 3 days after CDDP treatment. Salicylate significantly attenuated the CDDP-induced threshold shift from approximately 20 dB (at 16 and 24 kHz) to approximately 5 dB, and drastically reduced the loss of cochlear outer hair cells. Likewise, salicylate protected kidney function (measured as plasma blood urea nitrogen and creatinine levels) from CDDP toxicity. Protection of nerve conduction velocities of both sensory and motor nerves was minimal. The chemotherapeutic efficacy of CDDP on suppression of tumor mass and cancer cell metastasis remained unaffected by salicylate. The results suggest that administration of salicylate may become the basis of an effective therapeutic intervention against the ototoxic and nephrotoxic side effects associated with CDDP chemotherapy.
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U2 - 10.1038/labinvest.3780453
DO - 10.1038/labinvest.3780453
M3 - Article
C2 - 12003999
AN - SCOPUS:0036091647
SN - 0023-6837
VL - 82
SP - 585
EP - 596
JO - Laboratory Investigation
JF - Laboratory Investigation
IS - 5
ER -