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Lee KT, Bulls HW, Hoogland AI, James BW, Colon-Echevarria CB, Jim HSL. Chemotherapy-Induced Peripheral Neuropathy (CIPN): A Narrative Review and Proposed Theoretical Model. Cancers (Basel) 2024; 16:2571. [PMID: 39061210 PMCID: PMC11274737 DOI: 10.3390/cancers16142571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/03/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Chemotherapy-induced peripheral neuropathy (CIPN) is a common and debilitating symptom experienced by cancer survivors. Despite the burden of CIPN-related symptoms, interventions remain limited. OBJECTIVES This narrative review seeks to propose a framework for CIPN predisposing, precipitating, and perpetuating factors (3Ps), which will provide a foundation for future research and clinical interventions aimed at mitigating CIPN-related symptoms and morbidity. METHODS A comprehensive literature search was performed using PubMed, guided by keywords related to "chemotherapy-induced peripheral neuropathy." Studies were limited to those with full text available in English. RESULTS Predisposing factors outlined in this framework, such as older age and comorbid conditions, can be used to identify patients who have a higher risk of developing CIPN. The major precipitating factor of CIPN is the delivery of chemotherapy to peripheral nerves, which may be mitigated via cryotherapy or compression therapy during chemotherapy. Perpetuating factors can offer insight into psychological, cognitive, and behavioral modifications that could be treatment targets for CIPN management. CONCLUSION The proposed 3P model can guide the development of effective interventions for CIPN by suggesting modifiable psychological and behavioral treatment targets that may mitigate the impact of CIPN for cancer patients.
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Affiliation(s)
- Kimberley T. Lee
- Department of Breast Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Hailey W. Bulls
- Section of Palliative Care and Medical Ethics, Division of General Internal Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Aasha I. Hoogland
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Brian W. James
- Morsani College of Medicine, University of South Florida, Tampa, FL 33602, USA
| | | | - Heather S. L. Jim
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
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Masocha W, Aly E, Albaloushi A, Al-Romaiyan A. Licofelone, a Dual COX/LOX Inhibitor, Ameliorates Paclitaxel-Induced Mechanical Allodynia in Rats in a Cannabinoid Receptor-Dependent Manner. Biomedicines 2024; 12:1545. [PMID: 39062118 PMCID: PMC11274467 DOI: 10.3390/biomedicines12071545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/25/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
The use of paclitaxel as a chemotherapeutic drug is limited by the development of dose-dependent paclitaxel-induced neuropathic pain (PINP). Recently, we observed that the combination of indomethacin plus minocycline (IPM) attenuates PINP in a mouse model in a cannabinoid (CB) receptor-dependent manner. Indomethacin inhibits cyclooxygenase (COX) activity, and minocycline inhibits 5-lipoxygenase (5-LOX) activity. Male Sprague Dawley rats with paclitaxel-induced mechanical allodynia were treated with indomethacin, minocycline, IPM combination, licofelone (a dual COX/LOX inhibitor), or their vehicles. AM251, a CB1 receptor antagonist, and AM630, a CB2 receptor antagonist, were administered before the IPM combination or licofelone. Mechanical allodynia was measured using a dynamic plantar aesthesiometer. Molecular docking was performed using CB-Dock2. Licofelone and IPM combination had antiallodynic effects, which were significantly higher than either indomethacin or minocycline alone. AM251 and AM630 blocked the antiallodynic effects of IPM combination and licofelone. Molecular docking showed that licofelone binds to both CB1 and CB2 receptors with a high affinity similar to the phytocannabinoid 1-trans-delta-9-tetrahydrocannabinol and the synthetic cannabinoid WIN 55,212-2. Licofelone inhibits COX and LOX and/or directly interacts with CB receptors to produce antiallodynic effects in a rat model of PINP. The findings further suggest that licofelone could be a therapeutic agent for managing PINP.
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Affiliation(s)
- Willias Masocha
- Department of Pharmacology and Therapeutics, College of Pharmacy, Kuwait University, Safat 13110, Kuwait; (E.A.); (A.A.); (A.A.-R.)
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Jivani A, Shinde RK. A Comprehensive Review of Taxane Treatment in Breast Cancer: Clinical Perspectives and Toxicity Profiles. Cureus 2024; 16:e59266. [PMID: 38813284 PMCID: PMC11135142 DOI: 10.7759/cureus.59266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 04/28/2024] [Indexed: 05/31/2024] Open
Abstract
Taxanes, such as paclitaxel and docetaxel, have transformed the landscape of breast cancer treatment, playing pivotal roles in chemotherapy protocols for both early-stage and advanced/metastatic diseases. While these agents have demonstrated remarkable efficacy in enhancing patient outcomes, they are also linked to a range of adverse effects that can impact treatment tolerability and quality of life. This comprehensive review offers an in-depth exploration of taxane therapy in breast cancer, with a focus on clinical perspectives and toxicity profiles. We delineate the mechanisms of action of taxanes, their clinical effectiveness across various breast cancer subtypes, and the prevalent adverse effects encountered in clinical practice. Moreover, we deliberate on strategies for mitigating taxane-associated toxicity and optimizing treatment selection and sequencing based on individual patient characteristics and therapeutic objectives. Finally, we underscore areas for future research and advancement, encompassing the development of novel formulations, the identification of predictive biomarkers for treatment response, and the exploration of combination therapies to bolster therapeutic outcomes. By amalgamating existing evidence and clinical insights, this review aims to apprise clinicians and researchers of the current status of taxane treatment in breast cancer and steer endeavors toward further enhancing patient care and outcomes.
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Affiliation(s)
- Ashish Jivani
- General Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Raju K Shinde
- General Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Danziger M, Noble H, Roque DM, Xu F, Rao GG, Santin AD. Microtubule-Targeting Agents: Disruption of the Cellular Cytoskeleton as a Backbone of Ovarian Cancer Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1452:1-19. [PMID: 38805122 DOI: 10.1007/978-3-031-58311-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Microtubules are dynamic polymers composed of α- and β-tubulin heterodimers. Microtubules are universally conserved among eukaryotes and participate in nearly every cellular process, including intracellular trafficking, replication, polarity, cytoskeletal shape, and motility. Due to their fundamental role in mitosis, they represent a classic target of anti-cancer therapy. Microtubule-stabilizing agents currently constitute a component of the most effective regimens for ovarian cancer therapy in both primary and recurrent settings. Unfortunately, the development of resistance continues to present a therapeutic challenge. An understanding of the underlying mechanisms of resistance to microtubule-active agents may facilitate the development of novel and improved approaches to this disease.
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Affiliation(s)
- Michael Danziger
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Helen Noble
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Dana M Roque
- Division of Gynecologic Oncology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Fuhua Xu
- Division of Gynecologic Oncology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Gautam G Rao
- Division of Gynecologic Oncology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
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Winters-Stone KM, Horak F, Dieckmann NF, Luoh SW, Eckstrom E, Stoyles SA, Roeland EJ, Li F. GET FIT: A Randomized Clinical Trial of Tai Ji Quan Versus Strength Training for Fall Prevention After Chemotherapy in Older, Postmenopausal Women Cancer Survivors. J Clin Oncol 2023; 41:3384-3396. [PMID: 36888933 PMCID: PMC10414741 DOI: 10.1200/jco.22.01519] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 03/10/2023] Open
Abstract
PURPOSE To compare the efficacy of tai ji quan versus strength training to prevent falls after chemotherapy in older, postmenopaual women. METHODS We conducted a three-arm, single-blind, randomized controlled trial where older (50+ years), postmenopausal women cancer survivors participated in one of three supervised group exercise programs (tai ji quan, strength training, or stretching control) twice weekly for 6 months and were followed up 6 months after training stopped. The primary outcome was the incidence of falls. Secondary outcomes included fall-related injuries, leg strength (1 repetition maximum; kg), and balance (sensory organization [equilibrium score] and limits of stability [LOS; %] tests). RESULTS Four hundred sixty-two women were enrolled (mean age, 62 ± 6.3 years). Retention was 93%, and adherence averaged 72.9%. In primary analysis, there was no difference in the incidence of falls between groups after 6 months of training, nor during 6-month follow-up. A post hoc analysis detected a significantly reduced incidence of fall-related injuries within the tai ji quan group over the first 6 months, dropping from 4.3 falls per 100 person-months (95% CI, 2.9 to 5.6) at baseline to 2.4 falls per person-months (95% CI, 1.2 to 3.5). No significant changes occurred during 6-month follow-up. Over the intervention period, leg strength significantly improved in the strength group and balance (LOS) improved in the tai ji quan group, compared with controls (P < .05). CONCLUSION We found no significant reduction in falls for tai ji quan or strength training relative to stretching control in postmenopausal women treated with chemotherapy.
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Affiliation(s)
- Kerri M. Winters-Stone
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR
- Knight Cancer Institute, School of Medicine, Oregon Health & Science University, Portland, OR
| | - Fay Horak
- Department of Neurology, Oregon Health & Science University, Portland, OR
| | | | - Shiuh-Wen Luoh
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR
- VA Portland Health Care System, Portland, OR
| | - Elizabeth Eckstrom
- Department of Medicine, Division of General Internal Medicine & Geriatrics, Oregon Health & Science University, Portland, OR
| | - Sydnee A. Stoyles
- School of Nursing, Oregon Health & Science University, Portland, OR 97239
| | - Eric J. Roeland
- Knight Cancer Institute, School of Medicine, Oregon Health & Science University, Portland, OR
| | - Fuzhong Li
- Oregon Research Institute, Springfield, OR
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Park KT, Kim S, Choi I, Han IH, Bae H, Kim W. The involvement of the noradrenergic system in the antinociceptive effect of cucurbitacin D on mice with paclitaxel-induced neuropathic pain. Front Pharmacol 2023; 13:1055264. [PMID: 36686685 PMCID: PMC9846532 DOI: 10.3389/fphar.2022.1055264] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
Paclitaxel (sold under the brand name Taxol) is a chemotherapeutic drug that is widely used to treat cancer. However, it can also induce peripheral neuropathy, which limits its use. Although several drugs are used to attenuate neuropathy, no optimal treatment is available to date. In this study, the effect of cucurbitacins B and D on paclitaxel-induced neuropathic pain was assessed. Multiple paclitaxel injections (a cumulative dose of 8 mg/kg, i. p.) induced cold and mechanical allodynia from days 10 to 21 in mice, and the i. p. administration of 0.025 mg/kg of cucurbitacins B and D attenuated both allodynia types. However, as cucurbitacin B showed a more toxic effect on non-cancerous (RAW 264.7) cells, further experiments were conducted with cucurbitacin D. The cucurbitacin D dose-dependently (0.025, 0.1, and 0.5 mg/kg) attenuated both allodynia types. In the spinal cord, paclitaxel injection increased the gene expression of noradrenergic (α 1-and α 2-adrenergic) receptors but not serotonergic (5-HT1A and 3) receptors. Cucurbitacin D treatment significantly decreased the spinal α 1- but not α 2-adrenergic receptors, and the amount of spinal noradrenaline was also downregulated. However, the tyrosine hydroxylase expression measured via liquid chromatography in the locus coeruleus did not decrease significantly. Finally, cucurbitacin D treatment did not lower the anticancer effect of chemotherapeutic drugs when co-administered with paclitaxel in CT-26 cell-implanted mice. Altogether, these results suggest that cucurbitacin D could be considered a treatment option against paclitaxel-induced neuropathic pain.
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Affiliation(s)
- Keun-Tae Park
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Suyong Kim
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Ilseob Choi
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Ik-Hwan Han
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyunsu Bae
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Woojin Kim
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea,Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea,*Correspondence: Woojin Kim,
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Mori K, Kawashiri T, Mine K, Inoue M, Kudamatsu H, Uchida M, Egashira N, Kobayashi D, Shimazoe T. Inhibitory Effect of α1 Receptor Antagonists on Paclitaxel-Induced Peripheral Neuropathy in a Rodent Model and Clinical Database. TOXICS 2022; 10:669. [PMID: 36355960 PMCID: PMC9697069 DOI: 10.3390/toxics10110669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
The anticancer drug, paclitaxel, is widely used for ovarian, breast, non-small cell lung, and gastric cancers; however, it induces peripheral neuropathy as a side effect. There is insufficient evidence-based prophylaxis, and new prophylaxis and treatment methods are required. We examined the effect of α1-receptor antagonists on paclitaxel-induced peripheral neuropathy using Sprague-Dawley rats and a large adverse event database. The repeated administration of doxazosin or tamsulosin significantly reduced the response threshold to paclitaxel administration in animal models. In the sciatic nerve tissue, axonal degeneration and myelopathy were significantly suppressed. Furthermore, an analysis of the Food and Drug Administration Adverse Event Reporting System (FAERS) database suggested that the group using α1 inhibitors showed a lower reporting rate for paclitaxel-related peripheral neuropathy than the group that did not use these inhibitors (odds ratio (95% confidence interval): tamsulosin 0.21 (0.08−0.56), p < 0.01, doxazosin 0.41 (0.10−1.65), p = 0.195; any α1 receptor antagonist 0.54 (0.38−0.76), p < 0.01). Thus, doxazosin and tamsulosin may inhibit the development of paclitaxel-induced peripheral neuropathy by suppressing neurodegeneration, particularly axonal degeneration and myelopathy.
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Affiliation(s)
- Kohei Mori
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takehiro Kawashiri
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Keisuke Mine
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Mizuki Inoue
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hibiki Kudamatsu
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Mayako Uchida
- Department of Education and Research Center for Pharmacy Practice, Faculty of Pharmaceutical Sciences, Doshisha Women’s College of Liberal Arts, Kyotanabe 602-0893, Japan
| | - Nobuaki Egashira
- Department of Pharmacy, Kyushu University Hospital, Fukuoka 812-8582, Japan
| | - Daisuke Kobayashi
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takao Shimazoe
- Department of Clinical Pharmacy and Pharmaceutical Care, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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Chen CS, Smith EML, Stringer KA, Henry NL, Hertz DL. Co-occurrence and metabolic biomarkers of sensory and motor subtypes of peripheral neuropathy from paclitaxel. Breast Cancer Res Treat 2022; 194:551-560. [PMID: 35760975 PMCID: PMC9310087 DOI: 10.1007/s10549-022-06652-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/03/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE Chemotherapy-induced peripheral neuropathy (CIPN) is the major treatment-limiting toxicity of paclitaxel, which predominantly presents as sensory symptoms, with motor symptoms in some patients. Differentiating CIPN into subtypes has been recommended to direct CIPN research. The objective of this study was to investigate whether sensory and motor CIPN are distinct subtypes with different predictive biomarkers in patients with breast cancer receiving paclitaxel. METHODS Data were from a prospective cohort of 60 patients with breast cancer receiving up to 12 weekly infusions of 80 mg/m2 paclitaxel (NCT02338115). European Organisation for Research and Treatment of Cancer Quality of Life questionnaire CIPN20 was used to evaluate CIPN. Clusters of the time course of sensory (CIPNS), motor (CIPNM), and the difference between sensory and motor (CIPNS-CIPNM) were identified using k-means clustering on principal component scores. Predictive metabolomic biomarkers of maximum CIPNS and CIPNM were investigated using linear regressions adjusted for baseline CIPN, paclitaxel pharmacokinetics, and body mass index. RESULTS More sensory than motor CIPN was found (CIPNS change: mean = 10.8, ranged [-3.3, 52.1]; CIPNM change: mean = 3.5, range: [-7.5, 35.0]). Three groups were identified with No CIPN, Mixed CIPN, and Sensory-dominant CIPN (maximum CIPNS: mean = 12.7 vs. 40.9 vs. 74.3, p < 0.001; maximum CIPNM: mean = 5.4 vs. 25.5 vs. 36.1, p < 0.001; average CIPNS-CIPNM: mean = 2.8 vs. 5.8 vs. 24.9, p < 0.001). Biomarkers of motor CIPN were similar to previously identified biomarkers of sensory CIPN, including lower serum histidine (p = 0.029). CONCLUSION Our findings suggest that sensory and motor CIPN co-occur and may not have differentiating metabolic biomarkers. These findings need to be validated in larger cohorts of patients treated with paclitaxel and other neurotoxic agents to determine the optimal approach to predict, prevent, and treat CIPN and improve patients' outcomes.
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Affiliation(s)
- Ciao-Sin Chen
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, 428 Church St., Room 3054, Ann Arbor, MI, 48109-1065, USA
| | | | - Kathleen A Stringer
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, 428 Church St., Room 3054, Ann Arbor, MI, 48109-1065, USA
- NMR Metabolomics Laboratory, University of Michigan College of Pharmacy, Ann Arbor, MI, USA
| | - N Lynn Henry
- University of Michigan Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Daniel L Hertz
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, 428 Church St., Room 3054, Ann Arbor, MI, 48109-1065, USA.
- University of Michigan Rogel Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA.
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Aoyama T, Morita S, Kono T, Hata T, Mishima H, Sakamoto J. Effects of Goshajinkigan (TJ-107) for oxaliplatin-induced peripheral neurotoxicity using the functional assessment of cancer therapy/gynecologic oncology group 12-item neurotoxicity questionnaire in a Phase II, multicenter, randomized, double-blind, placebo-controlled trial. J Cancer Res Ther 2021; 17:1473-1478. [PMID: 34916380 DOI: 10.4103/jcrt.jcrt_1123_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background The aim of the present study was to evaluate the efficacy of TJ-107 for oxaliplatin-induced peripheral neurotoxicity in prospective, multi-institutional, randomized, double-blind, placebo-controlled Phase II trials using the functional assessment of cancer therapy/gynecologic oncology group 12-item neurotoxicity questionnaire (FACT-GOG-NTX-12). Patients and Methods The patients who were registered to the Goshajinkigan oxaliplatin neurotoxicity evaluation study (UMIN000002211) were analyzed. A NTX-12 from the validated FACT/GOG-NTX-12 was assessed before treatment and at the end of every 2 cycles. Results The comparisons of the median scores for TJ-107 and the placebo at 8 and 26 weeks were as follows: numbness or tingling in the hands (P = 0.5820), numbness or tingling in the feet (P = 0.3236), feeling of discomfort in the hands (P = 0.8219), feeling of discomfort in the feet (P = 0.5361), joint pain or muscle cramps (P = 0.1974), feeling weak all over (P = 0.2771), trouble hearing (P = 0.2832), ringing or buzzing in ears (P = 0.1031), trouble buttoning buttons (P = 0.1653), trouble feeling the shape of small objects when held in hand (P = 0.2919), trouble walking (P = 0.5406), and pain in the hands or feet when exposed to cold temperatures (P = 0.1872). Conclusion There might be no clinically significant difference between the use of TJ-107 and the severity and quality of life for patients treated with oxaliplatin.
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Affiliation(s)
- Toru Aoyama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - Satoshi Morita
- Department of Biomedical Statistics and Bioinformatics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Toru Kono
- Advanced Surgery Center, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan
| | - Taishi Hata
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | | | - Junichi Sakamoto
- Director of a Hospital, Tokai Central Hospital, Kakamigahara, Japan
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Burgess J, Ferdousi M, Gosal D, Boon C, Matsumoto K, Marshall A, Mak T, Marshall A, Frank B, Malik RA, Alam U. Chemotherapy-Induced Peripheral Neuropathy: Epidemiology, Pathomechanisms and Treatment. Oncol Ther 2021; 9:385-450. [PMID: 34655433 PMCID: PMC8593126 DOI: 10.1007/s40487-021-00168-y] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/12/2021] [Indexed: 12/14/2022] Open
Abstract
PURPOSE This review provides an update on the current clinical, epidemiological and pathophysiological evidence alongside the diagnostic, prevention and treatment approach to chemotherapy-induced peripheral neuropathy (CIPN). FINDINGS The incidence of cancer and long-term survival after treatment is increasing. CIPN affects sensory, motor and autonomic nerves and is one of the most common adverse events caused by chemotherapeutic agents, which in severe cases leads to dose reduction or treatment cessation, with increased mortality. The primary classes of chemotherapeutic agents associated with CIPN are platinum-based drugs, taxanes, vinca alkaloids, bortezomib and thalidomide. Platinum agents are the most neurotoxic, with oxaliplatin causing the highest prevalence of CIPN. CIPN can progress from acute to chronic, may deteriorate even after treatment cessation (a phenomenon known as coasting) or only partially attenuate. Different chemotherapeutic agents share both similarities and key differences in pathophysiology and clinical presentation. The diagnosis of CIPN relies heavily on identifying symptoms, with limited objective diagnostic approaches targeting the class of affected nerve fibres. Studies have consistently failed to identify at-risk cohorts, and there are no proven strategies or interventions to prevent or limit the development of CIPN. Furthermore, multiple treatments developed to relieve symptoms and to modify the underlying disease in CIPN have failed. IMPLICATIONS The increasing prevalence of CIPN demands an objective approach to identify at-risk patients in order to prevent or limit progression and effectively alleviate the symptoms associated with CIPN. An evidence base for novel targets and both pharmacological and non-pharmacological treatments is beginning to emerge and has been recognised recently in publications by the American Society of Clinical Oncology and analgesic trial design expert groups such as ACTTION.
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Affiliation(s)
- Jamie Burgess
- Department of Cardiovascular and Metabolic Medicine, The Pain Research Institute, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool University Hospital NHS Trust, Liverpool, UK.
- Clinical Sciences Centre, Aintree University Hospital, Longmoor Lane, Liverpool, L9 7AL, UK.
| | - Maryam Ferdousi
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - David Gosal
- Department of Neurology, Salford Royal NHS Foundation Trust, Salford, UK
| | - Cheng Boon
- Department of Clinical Oncology, The Royal Wolverhampton NHS Trust, Wolverhampton, UK
| | - Kohei Matsumoto
- Department of Cardiovascular and Metabolic Medicine, The Pain Research Institute, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool University Hospital NHS Trust, Liverpool, UK
| | - Anne Marshall
- Department of Cardiovascular and Metabolic Medicine, The Pain Research Institute, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool University Hospital NHS Trust, Liverpool, UK
| | - Tony Mak
- Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Andrew Marshall
- Faculty of Health and Life Sciences, Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, L7 8TX, UK
- Faculty of Health and Life Sciences, The Pain Research Institute, University of Liverpool, Liverpool, L9 7AL, UK
- Department of Pain Medicine, The Walton Centre, Liverpool, L9 7LJ, UK
| | - Bernhard Frank
- Department of Pain Medicine, The Walton Centre, Liverpool, L9 7LJ, UK
| | - Rayaz A Malik
- Research Division, Qatar Foundation, Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
- Institute of Cardiovascular Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Uazman Alam
- Department of Cardiovascular and Metabolic Medicine, The Pain Research Institute, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool University Hospital NHS Trust, Liverpool, UK.
- Division of Endocrinology, Diabetes and Gastroenterology, University of Manchester, Manchester, M13 9PT, UK.
- Clinical Sciences Centre, Aintree University Hospital, Longmoor Lane, Liverpool, L9 7AL, UK.
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Preclinical and Clinical Evidence of Therapeutic Agents for Paclitaxel-Induced Peripheral Neuropathy. Int J Mol Sci 2021; 22:ijms22168733. [PMID: 34445439 PMCID: PMC8396047 DOI: 10.3390/ijms22168733] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 12/19/2022] Open
Abstract
Paclitaxel is an essential drug in the chemotherapy of ovarian, non-small cell lung, breast, gastric, endometrial, and pancreatic cancers. However, it frequently causes peripheral neuropathy as a dose-limiting factor. Animal models of paclitaxel-induced peripheral neuropathy (PIPN) have been established. The mechanisms of PIPN development have been elucidated, and many drugs and agents have been proven to have neuroprotective effects in basic studies. In addition, some of these drugs have been validated in clinical studies for their inhibitory PIPN effects. This review summarizes the basic and clinical evidence for therapeutic or prophylactic effects for PIPN. In pre-clinical research, many reports exist of neuropathy inhibitors that target oxidative stress, inflammatory response, ion channels, transient receptor potential (TRP) channels, cannabinoid receptors, and the monoamine nervous system. Alternatively, very few drugs have demonstrated PIPN efficacy in clinical trials. Thus, enhancing translational research to translate pre-clinical research into clinical research is important.
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Effects of Chemotherapy-Induced Peripheral Neuropathy in Women With Breast Cancer: A Structural Equation Approach With the Theory of Unpleasant Symptoms. Cancer Nurs 2021; 44:145-153. [PMID: 31833921 DOI: 10.1097/ncc.0000000000000764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Chemotherapy-induced peripheral neuropathy (CIPN) is a common neurotoxic effect. Chemotherapy-induced peripheral neuropathy symptoms have multidimensional characteristics that are associated with various physiologic, psychological, and situational factors and affect individual's abilities to effectively function in performing daily tasks. The theory of unpleasant symptoms mediates the relationships among CIPN symptom experience, reduced performance in daily tasks, and causative factors. OBJECTIVES The aim of this study was to examine how influencing factors (physiologic, psychological, and situational) affect CIPN symptoms and the impact of symptom experience on functional interference in daily activities of chemotherapy-treated breast cancer survivors. METHODS A cross-sectional survey about causative factors, CIPN symptoms, and functional interference was completed by 190 women treated with adjuvant chemotherapy for nonmetastatic breast cancer. The hypothetical model was tested using structural equation modeling analysis. RESULTS The proposed model provided a good fit to the data. Physiologic and psychological factors accounted for 25.5% of the variance in CIPN symptom experience and explained 37.1% of the variance interfering with functional performance through CIPN symptom experience. CONCLUSION Disease- and treatment-related physiologic factors and coexisting psychological distress play crucial roles in explaining CIPN symptom experience and daily function in breast cancer survivors. IMPLICATIONS FOR PRACTICE The findings help healthcare professionals to improve long-term care for breast cancer survivors in terms of education for self-monitoring, coping, and establishing supportive environment that can contribute to reducing the unmet needs and interference associated with persistent CIPN.
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Network pharmacology-based evaluation of natural compounds with paclitaxel for the treatment of metastatic breast cancer. Toxicol Appl Pharmacol 2021; 423:115576. [PMID: 34000264 DOI: 10.1016/j.taap.2021.115576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 12/24/2022]
Abstract
Metastatic breast cancer is a prevalent life-threatening disease. Paclitaxel (PTX) is widely used in metastatic breast cancer therapy, but the side effects limit its chemotherapeutic application. Multidrug strategies have recently been used to maximize potency and decrease the toxicity of a particular drug by reducing its dosage. Therefore, we have evaluated the combined anti-cancerous effect of PTX with tested natural compounds (andrographolide (AND), silibinin (SIL), mimosine (MIM) and trans-anethole (TA)) using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, trypan blue dye exclusion assay, proliferating cell nuclear antigen (PCNA) staining, network pharmacology, molecular docking, molecular dynamics (MD) and in vivo chick chorioallantoic membrane (CAM) angiogenesis assay. We observed a reduction in the IC50 value of PTX with tested natural compounds. Further, the network pharmacology-based analysis of compound-disease-target (C-D-T) network showed that PTX, AND, SIL, MIM and TA targeted 55, 61, 56, 31 and 18 proteins of metastatic breast cancer, respectively. Molecular docking results indicated that AND and SIL inhibited the C-D-T network's core target kinase insert domain receptor (KDR) protein more effectively than others. While MD showed that the binding of AND with KDR was stronger and more stable than others. In trypan blue dye exclusion assay and PCNA staining, AND and SIL along with PTX were found to be more effective than PTX alone. CAM assay results suggested that AND, SIL and TA increase the anti-angiogenic potential of PTX. Thus, natural compounds can be used to improve the anti-cancer potential of PTX.
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Balkrishna A, Sakat SS, Karumuri S, Singh H, Tomer M, Kumar A, Sharma N, Nain P, Haldar S, Varshney A. Herbal Decoction Divya-Peedantak-Kwath Alleviates Allodynia and Hyperalgesia in Mice Model of Chemotherapy-Induced Peripheral Neuropathy via Modulation in Cytokine Response. Front Pharmacol 2020; 11:566490. [PMID: 33324205 PMCID: PMC7723448 DOI: 10.3389/fphar.2020.566490] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/23/2020] [Indexed: 12/13/2022] Open
Abstract
The widely used cancer treatment, chemotherapy, causes severe long-term neuropathic pain in 30–40% cases, the condition clinically known as chemotherapy-induced peripheral neuropathy (CIPN). Approved conventional analgesics are sometimes ineffective, while others like opioids have undesirable side effects like addiction, seizures, and respiratory malfunctioning. Tricyclic antidepressants and anticonvulsants, although exhibit anti-allodynic effects in neuropathy, also have unpleasant side effects. Thus, alternative medicines are being explored for CIPN treatment. Despite scattered reports on different extracts from different plants having potential anti-allodynic effects against CIPN, no established medicine or formulation of herbal origin exists. In this study, efficacy of an herbal decoction, formulated based on ancient medicinal principles and protocols for treating neuropathic pain, Divya-Peedantak-Kwath (DPK), has been evaluated in a paclitaxel (PTX)-induced peripheral neuropathic mouse model. We observed that DPK has prominent anti-allodynic and anti-hyperalgesic effects and acts as a nociceptive modulator for CIPN. With exhibited antioxidative effects, DPK restored the redox potential of the sciatic nerves to the normal. On histopathological evaluation, DPK prevented the PTX-induced lesions in the sciatic nerve, in a dose-dependent manner. It also prevented inflammation by modulating the levels of pro-inflammatory cytokines involved in CIPN pathogenesis. Our observations evinced that DPK can alleviate CIPN by attenuating oxidative stress and concomitant neuroinflammation through immune modulation.
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Affiliation(s)
- Acharya Balkrishna
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India.,Department of Allied and Applied Sciences, University of Patanjali, Haridwar, India
| | - Sachin S Sakat
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Shadrak Karumuri
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Hoshiyar Singh
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Meenu Tomer
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Ajay Kumar
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Niti Sharma
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Pradeep Nain
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Swati Haldar
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Anurag Varshney
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India.,Department of Allied and Applied Sciences, University of Patanjali, Haridwar, India
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Bayraktar S, Zhou JZ, Bassett R, Gutierrez Barrera AM, Layman RM, Valero V, Arun B. Clinical outcome and toxicity from taxanes in breast cancer patients with BRCA1 and BRCA2 pathogenic germline mutations. Breast J 2020; 26:1572-1582. [PMID: 32497289 DOI: 10.1111/tbj.13922] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/15/2020] [Accepted: 05/15/2020] [Indexed: 12/18/2022]
Abstract
Germline variations in genes coding for proteins involved in the oxidative stress and DNA repair greatly influence drug response and toxicity. Because BRCA1 and BRCA2 proteins play a role in DNA damage repair, we postulated that taxane-related toxicity is potentially higher and clinical outcome in different in patients with BRCA pathogenic variants (PV). Seven hundred nineteen women who underwent BRCA genetic testing and were treated with taxane-containing chemotherapy for early-stage breast cancer between 1997 and 2018 were included in the study. Patients with BRCA variants of uncertain significance were excluded. The Kaplan-Meier product-limit method was used to estimate recurrence-free survival (RFS) and overall survival (OS) rates. Logistic regression models were used to assess the association between chemotherapy toxicity and factors of interest. Cox regression models were used to assess the association between RFS and OS and factors of interest. Ninety-four (13%) and 54 (7%) patients had BRCA1 and BRCA2-PVs, respectively. While anemia (P = .0025) and leukopenia (P = .001) were more frequently seen in BRCA noncarriers, there was no difference in regards to peripheral neuropathy or other toxicities between the groups. Increasing doses of taxane were associated with increased risk of neutropenia, stomatitis, nausea, vomiting, acne/rash, and peripheral neuropathy across all groups. In a multivariate logistic regression model, BRCA2 status remained as an independent significant predictor for decreased hematologic toxicity (HR: 0.36; 95% CI: 0.20-0.67; P = .001) and increased gastrointestinal toxicity (HR: 1.93; 95% CI: 1.02-3.67; P = .04). Being overweight, obese and African-American race were significant predictors for peripheral neuropathy (P = .04; P = .03; P = .06, respectively). Total taxane dose received did not have any impact on survival outcomes. Our study demonstrates that taxane-containing chemotherapy regimens do not increase risk of peripheral neuropathy or hematologic toxicity in patients with BRCA PVs. The mechanisms for this finding need to be further investigated as it may provide an opportunity to combine taxanes with other agents, such as platinum salts or PARP inhibitors, with less anticipated toxicity.
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Affiliation(s)
- Soley Bayraktar
- Division of Medical Oncology and Hematology, Department of Medicine, Biruni University School of Medicine, Istanbul, Turkey
- Departments of Cancer Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Jade Z Zhou
- Departments of Cancer Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Roland Bassett
- Biostatistics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | | | - Rachel M Layman
- Breast Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Vicente Valero
- Breast Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Banu Arun
- Breast Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
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16
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Chen Y, Fang F, Kidwell KM, Vangipuram K, Marcath LA, Gersch CL, Rae JM, Hayes DF, Lavoie Smith EM, Henry NL, Beutler AS, Hertz DL. Genetic variation in Charcot-Marie-Tooth genes contributes to sensitivity to paclitaxel-induced peripheral neuropathy. Pharmacogenomics 2020; 21:841-851. [PMID: 32700628 DOI: 10.2217/pgs-2020-0053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Aim: This study explored whether inherited variants in genes causing the hereditary neuropathy condition Charcot-Marie-Tooth disease are associated with sensitivity to paclitaxel-induced peripheral neuropathy (PN). Patients & methods: Hereditary neuropathy genes previously associated with risk of paclitaxel-induced PN were sequenced in paclitaxel-treated patients. Eight putative genetic predictors in five hereditary neuropathy genes (ARHGEF10, SBF2, FGD4, FZD3 and NXN) were tested for association with PN sensitivity after accounting for systemic exposure and clinical variables. Results: FZD3 rs7833751, a proxy for rs7001034, decreased PN sensitivity (additive model, β = -0.41; 95% CI: -0.66 to -0.17; p = 0.0011). None of the other genetic predictors were associated with PN sensitivity. Conclusion: Our results support prior evidence that FZD3 rs7001034 is protective of PN and may be useful for individualizing paclitaxel treatment to prevent PN.
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Affiliation(s)
- Yongzhen Chen
- College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Fang Fang
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA
| | - Kelley M Kidwell
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA.,University of Michigan Rogel Cancer Center, Ann Arbor, MI 48109
| | - Kiran Vangipuram
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, MI 48109, USA
| | - Lauren A Marcath
- Department of Pharmacotherapy, Washington State University College of Pharmacy & Pharmaceutical Sciences, Pullman, WA 99164, USA
| | - Christina L Gersch
- University of Michigan Rogel Cancer Center, Ann Arbor, MI 48109.,Department of Internal Medicine, Division of Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - James M Rae
- University of Michigan Rogel Cancer Center, Ann Arbor, MI 48109.,Department of Internal Medicine, Division of Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Daniel F Hayes
- University of Michigan Rogel Cancer Center, Ann Arbor, MI 48109.,Department of Internal Medicine, Division of Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Ellen M Lavoie Smith
- Department of Health Behavior & Biological Sciences, University of Michigan School of Nursing, Ann Arbor, MI 48109, USA
| | - N Lynn Henry
- University of Michigan Rogel Cancer Center, Ann Arbor, MI 48109.,Department of Internal Medicine, Division of Oncology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Andreas S Beutler
- Department of Anesthesiology, Mayo Clinic, Rochester, MN 55902, USA.,Department of Oncology, Mayo Clinic, Rochester, MN 55902, USA
| | - Daniel L Hertz
- University of Michigan Rogel Cancer Center, Ann Arbor, MI 48109.,Department of Clinical Pharmacy, University of Michigan College of Pharmacy, Ann Arbor, MI 48109, USA
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Arbitrio M, Scionti F, Altomare E, Di Martino MT, Agapito G, Galeano T, Staropoli N, Iuliano E, Grillone F, Fabiani F, Caracciolo D, Cannataro M, Arpino G, Santini D, Tassone P, Tagliaferri P. Polymorphic Variants in NR1I3 and UGT2B7 Predict Taxane Neurotoxicity and Have Prognostic Relevance in Patients With Breast Cancer: A Case-Control Study. Clin Pharmacol Ther 2019; 106:422-431. [PMID: 30739312 DOI: 10.1002/cpt.1391] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 01/20/2019] [Indexed: 12/30/2022]
Abstract
Taxane-related peripheral neuropathy (TrPN) is a dose-limiting toxicity with important interindividual variability. Genetic polymorphisms in absorption, distribution, metabolism, and excretion (ADME) genes may account for variability in drug efficacy and/or toxicity. By the use of Affymetrix drug-metabolizing enzyme and transporter microarray platform, in a retrospective case-control study, the correlation between ADME polymorphic variants and grades ≥ 2-3-TrPN was investigated. In a breast cancer (BC) training set, five single-nucleotide polymorphisms in NR1I3 and UDP-glucuronosyltransferase (UGT)2B7 genes were correlated to grades ≥ 2-3-TrPN protection. By receiver operating characteristic curves, the grades ≥ 2-3-TrPN-related candidate biomarkers in an independent series of 54 patients with BC (17 cases and 37 controls) were validated. NR1I3 was correlated to paclitaxel-TrPN and UGT2B7 to docetaxel-TrPN. Moreover, a genetic signature of prognostic relevance for BC outcome was found. Our findings might have potential relevance for personalized management of patients with BC for prevention of treatment failure in ultrametabolizer genetic variants.
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Affiliation(s)
- Mariamena Arbitrio
- CNR-Institute of Neurological Sciences, UOS of Pharmacology, Catanzaro, Italy
| | - Francesca Scionti
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Emanuela Altomare
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Maria Teresa Di Martino
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Giuseppe Agapito
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Teresa Galeano
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | | | - Eleonora Iuliano
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | | | | | - Daniele Caracciolo
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Mario Cannataro
- Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Grazia Arpino
- Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - Daniele Santini
- Department of Medical Oncology, University Campus Bio-Medico, Rome, Italy
| | - Pierfrancesco Tassone
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy.,Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Pierosandro Tagliaferri
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy.,Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
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Alphalipoic Acid Prevents Oxidative Stress and Peripheral Neuropathy in Nab-Paclitaxel-Treated Rats through the Nrf2 Signalling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:3142732. [PMID: 30881589 PMCID: PMC6387730 DOI: 10.1155/2019/3142732] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 11/20/2018] [Accepted: 12/03/2018] [Indexed: 01/13/2023]
Abstract
Peripheral neuropathy is the major dose-limiting side effect of paclitaxel (PTX), affecting both the quality of life and the survival of cancer patients. Nab-paclitaxel (nab-PTX) was developed to provide additional clinical benefits and overcome the safety drawbacks of solvent-based PTX. However, the prevalence of peripheral neuropathy induced by nab-PTX was reported higher than that induced by solvent-based PTX. Upon investigation, oxidative stress plays a major role in the toxicity of nab-PTX. In order to assess if the antioxidant alphalipoic acid (α-LA) could prevent the nab-PTX-induced peripheral neuropathy, Sprague-Dawley (SD) rats were treated with three doses of α-LA (15, 30, and 60 mg/kg in normal saline, i.p., q.d. (days 1-30)) and/or nab-PTX (7.4 mg/kg in normal saline, i.v., q.w. (days 8, 15, and 22)). Body weight and peripheral neuropathy were measured and assessed regularly during the study. The assessment of peripheral neuropathy was performed by the von Frey and acetone tests. A tumor xenograft model of pancreatic cancer was used to assess the impact of α-LA on the antitumor effect of nab-PTX. Results showed that α-LA significantly ameliorated the peripheral neuropathy induced by nab-PTX (p < 0.05) without promoting tumor growth or reducing the chemotherapeutic effect of nab-PTX in a tumor xenograft model. Moreover, α-LA might significantly reverse the superoxide dismutase (SOD), glutathione (GSH), and malondialdehyde (MDA) levels altered by nab-PTX in the serum and the spinal cord of rats. Furthermore, α-LA could reverse the mRNA and protein expressions of Nrf2 (nuclear factor erythroid 2-related factor 2) and three Nrf2-responsive genes (HO-1, γ-GCLC, and NQO1) altered by nab-PTX in the dorsal root ganglion (DRG) of rats. In conclusion, our study suggests that α-LA could prevent oxidative stress and peripheral neuropathy in nab-PTX-treated rats through the Nrf2 signalling pathway without diminishing chemotherapeutic effect.
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Rua C, Guéguinou M, Soubai I, Viel E, Potier-Cartereau M, Chantome A, Barbe C, Bougnoux P, Barin-Le Guellec C, Vandier C. SK3 Gene Polymorphism Is Associated with Taxane Neurotoxicity and Cell Calcium Homeostasis. Clin Cancer Res 2018; 24:5313-5320. [PMID: 30037821 DOI: 10.1158/1078-0432.ccr-18-0870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/13/2018] [Accepted: 07/17/2018] [Indexed: 11/16/2022]
Abstract
Purpose: Taxane-induced peripheral neuropathy is a common side effect induced by anticancer agents, and no drug capable of preventing its occurrence or ameliorating its long-term course has been identified. The physiology of taxane neuropathy is not clear, and diverse mechanisms have been suggested, with ion channels regulating Ca2+ homeostasis appearing good candidates. The calcium-activated potassium channel SK3 is encoded by the KCNN3 gene, which is characterized by a length polymorphism due to variable number of CAG repeats.Experimental Design: To study the influence of the polymorphism of CAG motif repeat of KCNN3 on the development of taxane-induced neuropathy, we evaluated 176 patients treated with taxanes for breast cancer. In parallel, we measured Ca2+ entry using Fura2-AM dye in HEK cells expressing short versus long CAG alleles of KCNN3 Results: In the current study, we report that in the presence of docetaxel, Ca2+ entry was significantly increased in cells expressing short versus long CAG alleles of SK3 and that a SK3-lipid blocker inhibits this effect. We found that patients carrying a short KCNN3 allele exhibited significantly increased incidence of taxane neuropathy compared with those carrying longer alleles.Conclusions: The clinical implication of these findings is that KCNN3 polymorphism may increase patient susceptibility to taxane neurotoxicity and that the use of SK3 blockers during taxanes' administration may represent an interesting approach for the prevention of this neurotoxicity. Clin Cancer Res; 24(21); 5313-20. ©2018 AACR.
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Affiliation(s)
- Carina Rua
- Université de Tours, Inserm, N2C UMR1069, Tours, France.,CHRU Bretonneau, Tours, France.,Ion channels and Cancer Network of Canceropole Grand Ouest (IC-CGO), Nantes, France
| | - Maxime Guéguinou
- Université de Tours, Inserm, N2C UMR1069, Tours, France.,Ion channels and Cancer Network of Canceropole Grand Ouest (IC-CGO), Nantes, France
| | - Imane Soubai
- CHRU Bretonneau, Tours, France.,Université de Tours, Faculté de Pharmacie, Tours, France
| | | | - Marie Potier-Cartereau
- Université de Tours, Inserm, N2C UMR1069, Tours, France.,Ion channels and Cancer Network of Canceropole Grand Ouest (IC-CGO), Nantes, France.,Université de Tours, Faculté de Sciences et Techniques, Tours, France
| | - Aurélie Chantome
- Université de Tours, Inserm, N2C UMR1069, Tours, France.,Ion channels and Cancer Network of Canceropole Grand Ouest (IC-CGO), Nantes, France
| | | | - Philippe Bougnoux
- Université de Tours, Inserm, N2C UMR1069, Tours, France.,CHRU Bretonneau, Tours, France.,Ion channels and Cancer Network of Canceropole Grand Ouest (IC-CGO), Nantes, France.,Université de Tours, Faculté de Médecine, Tours, France
| | - Chantal Barin-Le Guellec
- Université de Tours, Faculté de Médecine, Tours, France.,Université de Limoges, Inserm, UMR1248, Limoges, France
| | - Christophe Vandier
- Université de Tours, Inserm, N2C UMR1069, Tours, France. .,Ion channels and Cancer Network of Canceropole Grand Ouest (IC-CGO), Nantes, France.,Université de Tours, Faculté de Sciences et Techniques, Tours, France
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Anoushirvani AA, Poorsaadat L, Aghabozorgi R, Kasravi M. Comparison of the Effects of Omega 3 and Vitamin E on Palcitaxel-Induced Peripheral Neuropathy. Open Access Maced J Med Sci 2018; 6:1857-1861. [PMID: 30455762 PMCID: PMC6236056 DOI: 10.3889/oamjms.2018.333] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/17/2018] [Accepted: 09/20/2018] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Paclitaxel-induced peripheral neuropathy is the most important side effect limiting the use of this medication. AIM This study aimed to compare the effects of omega-3 and vitamin E on the incidence of peripheral neuropathy in patients receiving Taxol. METHODS In this clinical trial, 63 patients who were a candidate for receiving taxol, were enrolled based on inclusion and exclusion criteria. In group O, patients received 640 mg omega-3 three times a day, and group E, received 300 mg vitamin E two times a day. Patients took the supplements up to three months after the onset of Taxol. Group P received placebo for a similar period. All patients referred to a neurologist for electrophysiological evaluation before the onset of chemotherapy and at months 1 and 3. The presence of neuropathy and its progression was recorded by the neurologist. RESULTS Neurological examination in this study indicated that 6 patients (28.6%) in Group O, 7 patients (33.3%) in group E, and 15 patients (71.4%) in placebo group started peripheral neuropathy. There was a significant difference between intervention groups and the placebo group (p = 0.0001) and no significant difference between intervention groups (p = 0.751). CONCLUSION Our data suggested that vitamin E and omega-3 may significantly reduce the incidence of Paclitaxel-induced peripheral neuropathy. Routine administration of such supplements that have no special side effect for patients under chemotherapy may greatly enhance their quality of life.
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Affiliation(s)
- Ali Arash Anoushirvani
- Department of Hematology and Medical Oncology, Arak University of Medical Sciences, Arak, Iran
| | - Laila Poorsaadat
- Department of Neurology, Arak University of Medical Sciences, Arak, Iran
| | - Reza Aghabozorgi
- Department of Hematology and Medical Oncology, Arak University of Medical Sciences, Arak, Iran
| | - Maryam Kasravi
- Department of Internal Medicine, Arak University of Medical Sciences, Arak, Iran
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21
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Williams AD, Bird ML, Hardcastle SG, Kirschbaum M, Ogden KJ, Walters JA. Exercise for reducing falls in people living with and beyond cancer. Cochrane Database Syst Rev 2018; 10:CD011687. [PMID: 30320433 PMCID: PMC6517115 DOI: 10.1002/14651858.cd011687.pub2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Current treatment modalities for cancer have been successful in achieving improved survivorship; however, they come with a number of long-term adverse effects. Accidental falls are a common and clinically significant adverse event in people living with and beyond cancer and rates are higher than in the rest of the population. OBJECTIVES To assess the effects of prescribed or provided exercise for reducing accidental falls, and falls risk factors of strength, flexibility and balance, in people living with and beyond cancer. SEARCH METHODS We searched the following electronic databases from inception to 10 July 2018, with no restrictions: CENTRAL, MEDLINE, Embase, and seven other databases. We searched clinicaltrials.gov and the World Health Organization International Clinical Trials Registry Platform (ICTRP) for ongoing trials, and reference lists of reviews and retrieved articles for additional studies. SELECTION CRITERIA We included all randomised controlled trials investigating exercise interventions versus no treatment, usual care or non-exercise interventions on falls incidence or falls risk factors in adults living with and beyond cancer (18 years of age or older at diagnosis). We excluded cross-over studies and studies in acute or inpatient hospice care. DATA COLLECTION AND ANALYSIS At least two review authors independently completed data extraction for included papers. We used Covidence software to manage screening, data collection and extraction. We assessed evidence using GRADE and presented results in a 'Summary of findings' table. MAIN RESULTS Eleven studies (835 participants) compared exercise to usual care. No studies compared exercise with no treatment or non-exercise interventions. The quality of the evidence was very low for the primary outcome rates of falls, and very low to low for the secondary outcomes. We downgraded the evidence due to study limitations (risk of bias), and issues of imprecision due to small sample sizes, inconsistency and indirectness. All studies were at high risk of bias for blinding of participants and personnel due to inability to blind participants to an exercise intervention. Risk of bias was generally low or unclear for other categories.There was generally little information on the important outcomes comparing exercise to usual care.Rates of falls and number of fallers: one study (223 participants) measured accidental falls, but reported neither the rate of falls or the number of fallers; there was no difference in the number of falls between exercise and usual care (very low-quality evidence).Strength: 10 studies (813 participants) reported on strength outcomes. Two analyses favoured exercise over usual care: quadriceps strength (2 studies, 72 participants; mean difference (MD) 8.99 kg, 95% confidence interval (CI) 1.29 to 16.70; low-quality evidence), and leg press (4 studies, 388 participants; MD 21.1 kg, 95% CI 8.47 to 33.74; low-quality evidence). In one analysis of the Sit-to-Stand Test, there was no difference between exercise and usual care (4 studies, 214 participants; standardised mean difference (SMD) -0.45, 95% CI -1.05 to 0.14; very low-quality evidence).Flexibility: one study (21 participants) reported on flexibility for Sit-and-Reach Distance (MD 2.05 cm, 95% CI 0.59 to 3.51; very low-quality evidence).Balance: five studies (350 participants) measured three different balance outcomes. Two analyses favoured exercise over usual care: postural balance (4 studies, 127 participants; standardised mean difference (SMD) 0.44, 95% CI 0.08 to 0.79; very low-quality evidence), and Backward Walk Test (2 studies, 280 participants; SMD -0.24, 95% CI -0.48 to -0.01; low-quality evidence). There was no difference between exercise and usual care for the Timed Up-and-Go Test (1 study, 15 participants; MD -0.35 seconds, 95% CI -1.47 to 0.77; low-quality evidence).Number of people sustaining a fall-related fracture: the quality of the evidence for exercise reducing fall-related fractures was very low.Adverse events: a single study (223 participants) noted some temporary muscle soreness on initiation of exercise or when there was an increase in the weight lifted. As no occurrence data were reported, we could not assess this variable further. No studies reported musculoskeletal injury. Analysis indicated that there was very low-quality evidence that exercise did not increase fatigue. AUTHORS' CONCLUSIONS There is a paucity of evidence for exercise training to reduce fall rates in people living with and beyond cancer. Exercise training may improve strength, flexibility and balance for people in this population, but the evidence is very low quality.
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Affiliation(s)
- Andrew D Williams
- School of Health Sciences, University of Tasmania, Launceston, Australia
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Ghoreishi Z, Keshavarz S, Asghari Jafarabadi M, Fathifar Z, Goodman KA, Esfahani A. Risk factors for paclitaxel-induced peripheral neuropathy in patients with breast cancer. BMC Cancer 2018; 18:958. [PMID: 30290775 PMCID: PMC6173931 DOI: 10.1186/s12885-018-4869-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 09/26/2018] [Indexed: 11/10/2022] Open
Abstract
Background Paclitaxel induced peripheral neuropathy (PIPN) is a major debilitating side effect of paclitaxel in patients with breast cancer with no fully known mechanisms. The aim of the study was to find out the possible risk factors for PIPN. Methods Eligible patients with node positive breast cancer undergoing chemotherapy with paclitaxel were assessed. They belonged to an initial randomized controlled trial in which the effectiveness of omega-3 fatty acids in preventing and reducing severity of PIPN was evaluated (protocol ID: NCT01049295). Reduced total neuropathy score (r-TNS) was used for measuring PIPN. All analyses were performed adjusting for intervention effect. The association between age, BMI, BSA, pathological grade, molecular biomarkers and PIPN was evaluated. Results Fifty-seven patients with breast cancer were investigated. Age was significantly associated with risk of PIPN (RR:1.50, P value = .024). Body mass index and BSA had significant association with severity of PIPN (B:1.28, P = .025; and B: 3.88, P = .010 respectively). Also, BSA showed a significant association with the risk of PIPN (RR: 2.28, P = .035; B: 3.88, P = .035). Incidence and severity of PIPN were much more pronounced in progesterone receptor positive (PR+) patients (RR:1.88, P = .015 and B:1.54, P = .012). Multivariate analysis showed that age and the status of PR+ were independent risk factor for incidence and the status of PR+ was the only independent risk factor for severity of PIPN. Conclusion Age, BSA and the status of PR+, should be considered as the risk factors for PIPN before commencement of chemotherapy with paclitaxel in patients with breast cancer. Older patients, those with greater BSA and PR+ patients may need closer follow up and more medical attention due to greater incidence and severity of PIPN.
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Affiliation(s)
- Zohreh Ghoreishi
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyedali Keshavarz
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Zahra Fathifar
- School of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Karyn A Goodman
- Department of Radiation Oncology, School of Medicine, University of Colorado, Aurora, CO, USA
| | - Ali Esfahani
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Shahid Ghazi Hospital, Tabriz, Iran.
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The Effect of the Histone Deacetylase Inhibitor Suberoylanilide Hydroxamic Acid and Paclitaxel Treatment on Full-Thickness Wound Healing in Mice. Ann Plast Surg 2018; 81:482-486. [DOI: 10.1097/sap.0000000000001519] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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24
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Ito A, Yoshimura M. Mechanisms of the analgesic effect of calcitonin on chronic pain by alteration of receptor or channel expression. Mol Pain 2018; 13:1744806917720316. [PMID: 28726540 PMCID: PMC5524232 DOI: 10.1177/1744806917720316] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The polypeptide hormone calcitonin is well known clinically for its ability to relieve osteoporotic back pain and neuropathic pain such as spinal canal stenosis, diabetic neuropathy, chemotherapy-induced neuropathy, and complex regional pain syndrome. Because the analgesic effects of calcitonin have a broad range, the underlying mechanisms of pain relief by calcitonin are largely unknown. However, recent studies using several types of chronic pain models combined with various methods have been gradually clarifying the mechanism. Here, we review the mechanisms of the analgesic action of calcitonin on ovariectomy-induced osteoporotic and neuropathic pain. The analgesic action of calcitonin may be mediated by restoration of serotonin receptors that control selective glutamate release from C-afferent fibers in ovariectomized rats and by normalization of sodium channel expression in damaged peripheral nerves. Serotonin receptors are reduced or eliminated by the relatively rapid reduction in estrogen during the postmenopausal period, and damaged nerves exhibit hyperexcitability due to abnormal expression of Na+ channel subtypes. In addition, in chemotherapy-induced peripheral neuropathy, inhibition of signals related to transient receptor potential ankyrin-1 and melastatin-8 is proposed to participate in the anti-allodynic action of calcitonin. Further, an unknown calcitonin-dependent signal appears to be present in peripheral nervous tissues and may be activated by nerve injury, resulting in regulation of the excitability of primary afferents by control of sodium channel transcription in dorsal root ganglion neurons. The calcitonin signal in normal conditions may be non-functional because no target is present, and ovariectomy or nerve injury may induce a target. Moreover, it has been reported that calcitonin reduces serotonin transporter but increases serotonin receptor expression in the thalamus in ovariectomized rats. These data suggest that calcitonin could alleviate lower back pain in patients with osteoporosis or neuropathic pain by the alteration in receptor or channel expression.
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Affiliation(s)
- Akitoshi Ito
- 1 Laboratory for Pharmacology, Pharmaceuticals Research Center, Asahi Kasei Pharma Co. Ltd., Shizuoka, Japan
| | - Megumu Yoshimura
- 2 Graduate School of Health Sciences, Kumamoto Health Science University, Kumamoto, Japan
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Gilaburu (Viburnum opulus L.) fruit extract alleviates testis and sperm damages induced by taxane-based chemotherapeutics. Biomed Pharmacother 2017; 95:1284-1294. [DOI: 10.1016/j.biopha.2017.09.057] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 08/29/2017] [Accepted: 09/12/2017] [Indexed: 11/19/2022] Open
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Tasnim A, Rammelkamp Z, Slusher AB, Wozniak K, Slusher BS, Farah MH. Paclitaxel causes degeneration of both central and peripheral axon branches of dorsal root ganglia in mice. BMC Neurosci 2016; 17:47. [PMID: 27401104 PMCID: PMC4940970 DOI: 10.1186/s12868-016-0285-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 05/25/2016] [Indexed: 01/05/2023] Open
Abstract
Background Peripheral neuropathy is a common and dose-limiting side effect of many cancer chemotherapies. The taxane agents, including paclitaxel (Taxol®), are effective chemotherapeutic drugs but cause degeneration of predominantly large myelinated afferent sensory fibers of the peripheral nervous system in humans and animal models. Dorsal root ganglia (DRG) neurons are sensory neurons that have unipolar axons each with two branches: peripheral and central. While taxane agents induce degeneration of peripheral axons, whether they also cause degeneration of central nervous system axons is not clear. Using a mouse model of paclitaxel-induced neuropathy, we investigated the effects of paclitaxel on the central branches of sensory axons. Results We observed that in the spinal cords of paclitaxel-intoxicated mice, degenerated axons were present in the dorsal columns, where the central branches of DRG axons ascend rostrally. In the peripheral nerves, degenerated myelinated fibers were present in significantly greater numbers in distal segments than in proximal segments indicating that this model exhibits the distal-to-proximal degeneration pattern generally observed in human peripheral nerve disorders. Conclusions We conclude that paclitaxel causes degeneration of both the peripheral and central branches of DRG axons, a finding that has implications for the site and mode of action of chemotherapy agents on the nervous system.
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Affiliation(s)
- Aniqa Tasnim
- Neuromuscular Division, Department of Neurology, Johns Hopkins University School of Medicine, The John G. Rangos Sr. Building, Room 239, 855 N. Wolfe Street, Baltimore, MD, 21205, USA.,Harvard University, Boston, MA, USA
| | - Zoe Rammelkamp
- Neuromuscular Division, Department of Neurology, Johns Hopkins University School of Medicine, The John G. Rangos Sr. Building, Room 239, 855 N. Wolfe Street, Baltimore, MD, 21205, USA.,University of Maryland Medical School, Baltimore, MD, USA
| | - Amy B Slusher
- Neuromuscular Division, Department of Neurology, Johns Hopkins University School of Medicine, The John G. Rangos Sr. Building, Room 239, 855 N. Wolfe Street, Baltimore, MD, 21205, USA
| | - Krystyna Wozniak
- Johns Hopkins Drug Discovery Program, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Barbara S Slusher
- Neuromuscular Division, Department of Neurology, Johns Hopkins University School of Medicine, The John G. Rangos Sr. Building, Room 239, 855 N. Wolfe Street, Baltimore, MD, 21205, USA.,Johns Hopkins Drug Discovery Program, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mohamed H Farah
- Neuromuscular Division, Department of Neurology, Johns Hopkins University School of Medicine, The John G. Rangos Sr. Building, Room 239, 855 N. Wolfe Street, Baltimore, MD, 21205, USA.
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Bird ML, Cheney M, Williams A. Accidental Fall Rates in Community-Dwelling Adults Compared to Cancer Survivors During and Post-Treatment: A Systematic Review With Meta-Analysis. Oncol Nurs Forum 2016; 43:E64-72. [DOI: 10.1188/16.onf.e64-e72] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Pergolotti M, Williams GR, Campbell C, Munoz LA, Muss HB. Occupational Therapy for Adults With Cancer: Why It Matters. Oncologist 2016; 21:314-9. [PMID: 26865588 PMCID: PMC4786355 DOI: 10.1634/theoncologist.2015-0335] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 12/28/2015] [Indexed: 11/17/2022] Open
Abstract
Adults with cancer may be at risk for limitations in functional status and quality of life (QOL). Occupational therapy is a supportive service with the specific mission to help people functionally engage in life as safely and independently as possible with the primary goal of improving QOL. Unfortunately, for people with cancer, occupational therapy remains underused. The overall purpose of this review is to provide an understanding of what occupational therapy is and its relevance to patients with cancer, highlight the reasons to refer, and, last, provide general advice on how to access services.
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Affiliation(s)
- Mackenzi Pergolotti
- Gillings School of Global Public Health, Department of Health Policy and Management, Cancer Care Quality Training Program University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Lineberger Comprehensive Cancer Center, Geriatric Oncology Program, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Grant R Williams
- Lineberger Comprehensive Cancer Center, Geriatric Oncology Program, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Claudine Campbell
- Memorial Sloan Kettering Cancer Center, Department of Occupational Therapy, New York, New York, USA
| | - Lauro A Munoz
- MD Anderson Cancer Center, Department of Occupational Therapy, Houston, Texas, USA
| | - Hyman B Muss
- Lineberger Comprehensive Cancer Center, Geriatric Oncology Program, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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NMR-Based Metabolic Profiling Reveals Neurochemical Alterations in the Brain of Rats Treated with Sorafenib. Neurotox Res 2015; 28:290-301. [PMID: 26233726 DOI: 10.1007/s12640-015-9539-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/22/2015] [Accepted: 07/01/2015] [Indexed: 02/05/2023]
Abstract
Sorafenib, an active multi-kinase inhibitor, has been widely used as a chemotherapy drug to treat advanced clear-cell renal cell carcinoma patients. In spite of the relative safety, sorafenib has been shown to exert a negative impact on cognitive functioning in cancer patients, specifically on learning and memory; however, the underlying mechanism remains unclear. In this study, an NMR-based metabolomics approach was applied to investigate the neurochemical effects of sorafenib in rats. Male rats were once daily administrated with 120 mg/kg sorafenib by gavage for 3, 7, and 28 days, respectively. NMR-based metabolomics coupled with histopathology examinations for hippocampus, prefrontal cortex (PFC), and striatum were performed. The (1)H NMR spectra data were analyzed by using multivariate pattern recognition techniques to show the time-dependent biochemical variations induced by sorafenib. Excellent separation was obtained and distinguishing metabolites were observed between sorafenib-treated and control rats. A total of 36 differential metabolites in hippocampus of rats treated with sorafenib were identified, some of which were significantly changed. Furthermore, these modified metabolites mainly reflected the disturbances in neurotransmitters, energy metabolism, membrane, and amino acids. However, only a few metabolites in PFC and striatum were altered by sorafenib. Additionally, no apparent histological changes in these three brain regions were observed in sorafenib-treated rats. Together, our findings demonstrate the disturbed metabonomics pathways, especially, in hippocampus, which may underlie the sorafenib-induced cognitive deficits in patients. This work also shows the advantage of NMR-based metabolomics over traditional approach on the study of biochemical effects of drugs.
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Williams AD, Bird ML, King SGK, Kirschbaum M, Ogden KJ. Exercise for preventing falls in people with cancer living in the community. Hippokratia 2015. [DOI: 10.1002/14651858.cd011687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Andrew D Williams
- University of Tasmania; School of Health Sciences; Launceston Australia
| | - Marie-Louise Bird
- University of Tasmania; School of Health Sciences; Launceston Australia
| | - Sibella G K King
- University of Tasmania; School of Health Sciences; Launceston Australia
| | - Mark Kirschbaum
- University of Tasmania; Centre for Rural Health, School of Health Sciences; Launceston Australia
| | - Kathryn J Ogden
- University of Tasmania; Launceston Clinical School; Locked Bag 1377 Launceston Tasmania Australia 7250
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Paclitaxel-induced hyposensitivity to nociceptive chemical stimulation in mice can be prevented by treatment with minocycline. Sci Rep 2014; 4:6719. [PMID: 25335491 PMCID: PMC4205835 DOI: 10.1038/srep06719] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 10/03/2014] [Indexed: 02/01/2023] Open
Abstract
Development of peripheral neuropathy, which can present as painful neuropathy or loss of sensation, sometimes limit the use of paclitaxel in the treatment of solid tumors such as breast cancer. Previous studies reported development of thermal hyperalgesia in mice treated with paclitaxel. In this study an automated flinch detection system for the formalin test (20 μl of 5% formalin injected subcutaneously into the paw dorsum) was used to evaluate chemical nociception in BALB/c mice treated with paclitaxel 2 mg/kg alone or coadministered with minocycline 50 mg/kg, intraperitoneally for 5 consecutive days. Reaction latency to thermal stimuli (hot-plate) was also measured. Injection of formalin resulted in biphasic paw flinches; phase 1 (1-9 minutes) and phase 2 (10-40 minutes). Treatment with paclitaxel reduced cumulative flinches in both phases 1 and 2 by 28% and 43%, respectively at day 7. However, treatment with paclitaxel also induced thermal hyperalgesia. Co-administration of paclitaxel with minocycline prevented development of both paclitaxel-induced hyposensitivity to chemical nociception and thermal hyperalgesia. In conclusion, the results indicate paclitaxel induces chemical hyposensitivity and thermal hyperalgesia in mice. Minocycline protected against paclitaxel-induced chemical hyposensitivity and thermal hyperalgesia, thus, providing further support of the usefulness of the drug in prevention of chemotherapy-induced neuropathy.
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Hong JS, Tian J, Wu LH. The influence of chemotherapy-induced neurotoxicity on psychological distress and sleep disturbance in cancer patients. ACTA ACUST UNITED AC 2014; 21:174-80. [PMID: 25089099 DOI: 10.3747/co.21.1984] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE In the present study, we aimed to investigate the effects of chemotherapy-induced peripheral neurotoxicity (cipn) on psychological distress and sleep quality in cancer patients. METHODS A total of 706 cancer patients were interviewed for the study. In the 4th week of treatment, patient cipn was measured using the Patient Neurotoxicity Questionnaire (pnq). The sleep quality and psychological distress of patients were measured using the Pittsburgh Sleep Quality Index (psqi), the Distress Thermometer (dt), and the Hospital Anxiety and Depression Scale (hads). Multiple logistic regression was applied to determine the independent effects of cipn on psychological distress and sleep disturbance in the patients. RESULTS THESE CORRELATION COEFFICIENTS WERE OBTAINED: 0.387 (p < 0.0001) between the pnq total score and the dt score, 0.386 (p < 0.0001) between the pnq total score and the hads Depression score, 0.379 (p < 0.0001) between the pnq total score and the hads Anxiety score, and 0.399 (p < 0.0001) between the pnq total score and the psqi global score. The prevalence rates of distress, depression, anxiety, and poor sleep quality in the five pnq grades were statistically significantly different (p < 0.0001). After controlling for age, sex, education level, social supports, fatigue, disease stage, and tumour site, the pnq grades were found to be associated with depression (p < 0.0001), anxiety (p < 0.0001), and poor sleep quality (p < 0.0001). CONCLUSIONS Chemotherapy-induced peripheral neurotoxicity negatively affects psychological distress and sleep quality in cancer patients treated with chemotherapy. High pnq grades were significantly associated with poor psychological status and sleep quality. Our results emphasize the importance of assessing peripheral neuropathies during chemotherapy and of adjusting treatment plans based on assessment results.
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Affiliation(s)
- J S Hong
- Department of Radiotherapy, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, PR China
| | - J Tian
- Department of Epidemiology and Health Statistics, Fujian Medical University, Fuzhou, Fuzhou, Fujian Province, PR China
| | - L H Wu
- Department of Epidemiology and Health Statistics, Fujian Medical University, Fuzhou, Fuzhou, Fujian Province, PR China
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Visovsky C, Haas M, Faiman B, Kurtin S, Shaftic AM, Lyden E, Rice J. Nurse self-evaluation of assessment of chemotherapy-induced peripheral neuropathy in patients with cancer. J Adv Pract Oncol 2014; 3:319-25. [PMID: 25031961 PMCID: PMC4093352 DOI: 10.6004/jadpro.2012.3.5.5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The focus of this study was to assess the feasibility and clinical implementation of a standardized assessment for chemotherapy-induced peripheral neuropathy (CIPN) by registered nurses in patients undergoing neurotoxic chemotherapy. A total of 24 registered nurses from 4 different institutions were enrolled into the study. A pre- and posttest design was used to assess changes in nurses’ attitudes, knowledge, and perceived skill in CIPN assessment. Using selected data collection instruments, nurses performed standardized assessments during the course of chemotherapy treatments. Patient-reported symptoms, vibratory sensation, deep-tendon reflexes, and touch were collected at three time points during chemotherapy treatment. Results indicated there was no statistically significant change in knowledge of chemotherapy-induced peripheral neuropathy from baseline to the end of the study. However, this finding may be due to poor internal consistency noted among the items of the Nurse Knowledge and Attitudes CIPN Assessment. Implementation of a standardized subjective and objective nursing assessment of CIPN was feasible with a total mean feasibility score of 3.76 (range 0–5) with each individual item scoring between 3.35 and 3.91. The intervention did improve pretest and posttest confidence in performing assessment for CIPN (p = .003).
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Affiliation(s)
- Constance Visovsky
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
| | - Marilyn Haas
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
| | - Beth Faiman
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
| | - Sandra Kurtin
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
| | - Anne Marie Shaftic
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
| | - Elizabeth Lyden
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
| | - Janique Rice
- University of South Florida College of Nursing, Tampa, Florida; CarePartners, Asheville, North Carolina; Cleveland Clinic Foundation, Cleveland, Ohio; University of Arizona Cancer Center, Tucson, Arizona; Holy Name Medical Center, Teaneck, New Jersey; University of Nebraska Medical Center, Omaha, Nebraska
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Winters-Stone K. Tai Ji Quan for the aging cancer survivor: Mitigating the accelerated development of disability, falls, and cardiovascular disease from cancer treatment. JOURNAL OF SPORT AND HEALTH SCIENCE 2014; 3:52-57. [PMID: 25285233 PMCID: PMC4180213 DOI: 10.1016/j.jshs.2013.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Currently there are more than 13.7 million cancer survivors living in the U.S., and that figure is projected to increase by 31% in the next decade, adding another 4 million cancer survivors into the healthcare system. Cancer is largely a disease of aging, and the aging of the population will sharply raise the proportion of older cancer survivors, many of whom will be long-term survivors (5+ years post diagnosis). This review will address the potential utility of exercise to address three health problems that are of particular concern for the aging cancer survivor and the healthcare system, i.e., disability, falls, and cardiovascular disease, because the development of these age-related problems may be accelerated by cancer treatment. While there are many different modes of exercise that each produce specific adaptations, Tai Ji Quan may be a particularly suitable strategy to mitigate the development of age- and cancer-treatment-related problems. Based on studies in older adults without cancer, Tai Ji Quan produces musculoskeletal and cardiometabolic adaptations and is more easily performed by older adults due to its low energy cost and slower movement patterns. Since cancer survivors are mostly older, inactive, and often physically limited by the lingering side effects of treatment, they need to engage in safe, practical, and effective modes of exercise. The dearth of published controlled trials examining the efficacy of Tai Ji Quan to mitigate cancer-treatment-related musculoskeletal and cardiovascular side effects points to ample research opportunities to explore the application of this non-Western exercise modality to improve long-term outcomes for aging cancer survivors.
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Affiliation(s)
- Kerri Winters-Stone
- School of Nursing and Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
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Smith EML. Current methods for the assessment and management of taxane-related neuropathy. Clin J Oncol Nurs 2013; 17 Suppl:22-34. [PMID: 23360700 DOI: 10.1188/13.cjon.s1.22-34] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Taxane-induced peripheral neuropathy (TIPN) affects a number of patients with breast cancer. To properly manage these patients, nurses must be able to identify and assess TIPN, as well as educate patients on TIPN as a side effect of taxane therapy. This article provides practical suggestions regarding how nurses can incorporate clinically feasible measurement approaches into practice and includes examples of grading TIPN that illustrate the limitations of the current tools and techniques for assessment. For example, a shortened and revised version of the Total Neuropathy Score and the Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity subscale should be considered for future use. In addition, neuropathy-related results from numerous phase III trials in breast cancer are discussed, and the latest evidence regarding pharmacologic interventions for TIPN is briefly summarized.
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Wozniak KM, Wu Y, Farah MH, Littlefield BA, Nomoto K, Slusher BS. Neuropathy-inducing effects of eribulin mesylate versus paclitaxel in mice with preexisting neuropathy. Neurotox Res 2013; 24:338-44. [PMID: 23637052 DOI: 10.1007/s12640-013-9394-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 04/05/2013] [Accepted: 04/19/2013] [Indexed: 11/25/2022]
Abstract
Eribulin mesylate (E7389, INN:eribulin mesilate Halaven(®)) is a non-taxane microtubule dynamics inhibitor currently in clinical use for advanced breast cancer. Other microtubule-targeting agents for breast cancer, including paclitaxel and ixabepilone, display a common treatment dose-limiting toxicity of peripheral neuropathy (PN). In an earlier study, we found eribulin mesylate had a lower propensity to induce PN in mice than either paclitaxel or ixabepilone. In the current study, we compared additional PN induced by paclitaxel versus eribulin mesylate when administered to mice with preexisting paclitaxel-induced PN. Initially, paclitaxel at 0.75 × its maximum tolerated dose (MTD; 22.5 mg/kg) was given on a Q2Dx3 regimen for 2 weeks. The second chemotherapy was 0.5 MTD eribulin mesylate (0.875 mg/kg) or paclitaxel (15 mg/kg) on a similar regimen, starting 2 weeks after the first. Initial paclitaxel treatment produced significant decreases in caudal nerve conduction velocity (NCV; averaging 19.5 ± 1 and 22.2 ± 1.3 %, p < 0.001) and amplitude (averaging 53.2 ± 2.6 and 72.4 ± 2.1 %, p < 0.001) versus vehicle when measured 24 h or 2 weeks after dosing cessation, respectively. Additional 0.5 MTD paclitaxel further reduced caudal NCV and amplitude relative to immediately before initiation of the second regimen (by 11 ± 2.1 and 59.2 ± 5 %, p < 0.01, respectively). In contrast, 0.5 MTD eribulin mesylate caused no further decrease in caudal NCV. In conclusion, unlike additional paclitaxel treatment, eribulin mesylate administered to mice with preexisting paclitaxel-induced PN had limited additional deleterious effects at 6 weeks. These preclinical data suggest that eribulin mesylate may have reduced tendency to exacerbate preexisting paclitaxel-induced PN in clinical settings.
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Affiliation(s)
- Krystyna M Wozniak
- NeuroTranslational Drug Discovery Program, Brain Science Institute, Johns Hopkins School of Medicine, Baltimore, MD, USA
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Winters-Stone KM, Li F, Horak F, Luoh SW, Bennett JA, Nail L, Dieckmann N. Comparison of tai chi vs. strength training for fall prevention among female cancer survivors: study protocol for the GET FIT trial. BMC Cancer 2012; 12:577. [PMID: 23217054 PMCID: PMC3537635 DOI: 10.1186/1471-2407-12-577] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 11/29/2012] [Indexed: 11/10/2022] Open
Abstract
Background Women with cancer are significantly more likely to fall than women without cancer placing them at higher risk of fall-related fractures, other injuries and disability. Currently, no evidence-based fall prevention strategies exist that specifically target female cancer survivors. The purpose of the GET FIT (Group Exercise Training for Functional Improvement after Treatment) trial is to compare the efficacy of two distinct types of exercise, tai chi versus strength training, to prevent falls in women who have completed treatment for cancer. The specific aims of this study are to: 1) Determine and compare the efficacy of both tai chi training and strength training to reduce falls in older female cancer survivors, 2) Determine the mechanism(s) by which tai chi and strength training each reduces falls and, 3) Determine whether or not the benefits of each intervention last after structured training stops. Methods/Design We will conduct a three-group, single-blind, parallel design, randomized controlled trial in women, aged 50–75 years old, who have completed chemotherapy for cancer comparing 1) tai chi 2) strength training and 3) a placebo control group of seated stretching exercise. Women will participate in supervised study programs twice per week for six months and will be followed for an additional six months after formal training stops. The primary outcome in this study is falls, which will be prospectively tracked by monthly self-report. Secondary outcomes are maximal leg strength measured by isokinetic dynamometry, postural stability measured by computerized dynamic posturography and physical function measured by the Physical Performance Battery, all measured at baseline, 3, 6 and 12 months. The sample for this trial (N=429, assuming 25% attrition) will provide adequate statistical power to detect at least a 47% reduction in the fall rate over 1 year by being in either of the 2 exercise groups versus the control group. Discussion The GET FIT trial will provide important new knowledge about preventing falls using accessible and implementable exercise interventions for women following chemotherapy for cancer. ClinicalTrials.gov NCT01635413
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Effect of synthetic eel calcitonin, elcatonin, on cold and mechanical allodynia induced by oxaliplatin and paclitaxel in rats. Eur J Pharmacol 2012; 696:62-9. [PMID: 23001015 DOI: 10.1016/j.ejphar.2012.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 08/27/2012] [Accepted: 09/06/2012] [Indexed: 11/23/2022]
Abstract
Oxaliplatin and paclitaxel are commonly used anti-cancer drugs, but they frequently cause peripheral neuropathic pain. In this study, we investigated the effect of elcatonin, a synthetic eel calcitonin, on oxaliplatin- and paclitaxel-induced neuropathy in rats. The rats were treated with a single dose of oxaliplatin (6 mg/kg, i.p.) or repeated doses of paclitaxel (2 mg/kg, i.p.) on 4 alternate days. Both treatments resulted in cold and mechanical allodynia. We assessed the anti-allodynic effects of subcutaneously administered elcatonin (20 U/kg/day) by using a newly developed method to provide cold stimulation (8°C) directly to the hind paw of the rats and by using the von Frey test. Elcatonin almost completely reversed the effects of both cold and mechanical allodynia. To determine the mechanism of this anti-allodynic effect, we examined the effect of elcatonin on neuropathy induced by intraplantar injection of two organic compounds: allyl isothiocyanate (1 nmol/paw), which activates transient receptor potential ankyrin-1 channels, and menthol (1.28 μmol/paw), which activates transient receptor potential ankyrin-1 and melastatin-8. Pre-administration of elcatonin almost completely prevented cold and mechanical allodynia from being induced by both compounds. These results suggest that elcatonin attenuates oxaliplatin- and paclitaxel-induced neuropathic pain by inhibiting the cellular signaling related to transient receptor potential ankyrin-1 and melastatin-8. Thus, we conclude that administration of elcatonin may improve the quality of life of cancer patients receiving chemotherapy.
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Ghoreishi Z, Esfahani A, Djazayeri A, Djalali M, Golestan B, Ayromlou H, Hashemzade S, Asghari Jafarabadi M, Montazeri V, Keshavarz SA, Darabi M. Omega-3 fatty acids are protective against paclitaxel-induced peripheral neuropathy: a randomized double-blind placebo controlled trial. BMC Cancer 2012; 12:355. [PMID: 22894640 PMCID: PMC3459710 DOI: 10.1186/1471-2407-12-355] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Accepted: 08/03/2012] [Indexed: 12/04/2022] Open
Abstract
Background Axonal sensory peripheral neuropathy is the major dose-limiting side effect of paclitaxel.Omega-3 fatty acids have beneficial effects on neurological disorders from their effects on neurons cells and inhibition of the formation of proinflammatory cytokines involved in peripheral neuropathy. Methods This study was a randomized double blind placebo controlled trial to investigate the efficacy of omega-3 fatty acids in reducing incidence and severity of paclitaxel-induced peripheral neuropathy (PIPN). Eligible patients with breast cancer randomly assigned to take omega-3 fatty acid pearls, 640 mg t.i.d during chemotherapy with paclitaxel and one month after the end of the treatment or placebo. Clinical and electrophysiological studies were performed before the onset of chemotherapy and one month after cessation of therapy to evaluate PIPN based on "reduced Total Neuropathy Score". Results Twenty one patients (70%) of the group taking omega-3 fatty acid supplement (n = 30) did not develop PN while it was 40.7%( 11 patients) in the placebo group(n = 27). A significant difference was seen in PN incidence (OR = 0.3, .95% CI = (0.10-0.88), p = 0.029). There was a non-significant trend for differences of PIPN severity between the two study groups but the frequencies of PN in all scoring categories were higher in the placebo group (0.95% CI = (−2.06 -0.02), p = 0.054). Conclusions Omega-3 fatty acids may be an efficient neuroprotective agent for prophylaxis against PIPN. Patients with breast cancer have a longer disease free survival rate with the aid of therapeutical agents. Finding a way to solve the disabling effects of PIPN would significantly improve the patients’ quality of life. Trial registration This trial was registered at ClinicalTrials.gov (NCT01049295)
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Affiliation(s)
- Zohreh Ghoreishi
- Department of Nutrition and Biochemistry, School of Health, Tehran University of Medical Sciences, Tehran, Iran
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Baldwin RM, Owzar K, Zembutsu H, Chhibber A, Kubo M, Jiang C, Watson D, Eclov RJ, Mefford J, McLeod HL, Friedman PN, Hudis CA, Winer EP, Jorgenson EM, Witte JS, Shulman LN, Nakamura Y, Ratain MJ, Kroetz DL. A genome-wide association study identifies novel loci for paclitaxel-induced sensory peripheral neuropathy in CALGB 40101. Clin Cancer Res 2012; 18:5099-109. [PMID: 22843789 DOI: 10.1158/1078-0432.ccr-12-1590] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE Sensory peripheral neuropathy is a common and sometimes debilitating toxicity associated with paclitaxel therapy. This study aims to identify genetic risk factors for the development of this toxicity. EXPERIMENTAL DESIGN A prospective pharmacogenetic analysis of patients with primary breast cancer, randomized to the paclitaxel arm of CALGB 40101, was used to identify genetic predictors of the onset and severity of sensory peripheral neuropathy. A genome-wide association study in 855 subjects of European ancestry was conducted and findings were replicated in additional European (n = 154) and African American (n = 117) subjects. RESULTS A single nucleotide polymorphism in FGD4 was associated with the onset of sensory peripheral neuropathy in the discovery cohort [rs10771973; HR, 1.57; 95% confidence interval (CI), 1.30-1.91; P = 2.6 × 10(-6)] and in a European (HR, 1.72; 95% CI, 1.06-2.80; P = 0.013) and African American (HR, 1.93; 95% CI, 1.13-3.28; P = 6.7 × 10(-3)) replication cohort. There is also evidence that markers in additional genes, including EPHA5 (rs7349683) and FZD3 (rs10771973), were associated with the onset or severity of paclitaxel-induced sensory peripheral neuropathy. CONCLUSIONS A genome-wide association study has identified novel genetic markers of paclitaxel-induced sensory peripheral neuropathy, including a common polymorphism in FGD4, a congenital peripheral neuropathy gene. These findings suggest that genetic variation may contribute to variation in development of this toxicity. Validation of these findings may allow for the identification of patients at increased risk of peripheral neuropathy and inform the use of an alternative to paclitaxel and/or the clinical management of this toxicity.
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Affiliation(s)
- R Michael Baldwin
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1550 4th Street RH584E, San Francisco, CA 94158-2911, USA
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Leandro-García LJ, Leskelä S, Jara C, Gréen H, Avall-Lundqvist E, Wheeler HE, Dolan ME, Inglada-Perez L, Maliszewska A, de Cubas AA, Comino-Méndez I, Mancikova V, Cascón A, Robledo M, Rodríguez-Antona C. Regulatory polymorphisms in β-tubulin IIa are associated with paclitaxel-induced peripheral neuropathy. Clin Cancer Res 2012; 18:4441-8. [PMID: 22718863 DOI: 10.1158/1078-0432.ccr-12-1221] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
PURPOSE Peripheral neuropathy is the dose-limiting toxicity of paclitaxel, a chemotherapeutic drug widely used to treat several solid tumors such as breast, lung, and ovary. The cytotoxic effect of paclitaxel is mediated through β-tubulin binding in the cellular microtubules. In this study, we investigated the association between paclitaxel neurotoxicity risk and regulatory genetic variants in β-tubulin genes. EXPERIMENTAL DESIGN We measured variation in gene expression of three β-tubulin isotypes (I, IVb, and IIa) in lymphocytes from 100 healthy volunteers, sequenced the promoter region to identify polymorphisms putatively influencing gene expression and assessed the transcription rate of the identified variants using luciferase assays. To determine whether the identified regulatory polymorphisms were associated with paclitaxel neurotoxicity, we genotyped them in 214 patients treated with paclitaxel. In addition, paclitaxel-induced cytotoxicity in lymphoblastoid cell lines was compared with β-tubulin expression as measured by Affymetrix exon array. RESULTS We found a 63-fold variation in β-tubulin IIa gene (TUBB2A) mRNA content and three polymorphisms located at -101, -112, and -157 in TUBB2A promoter correlated with increased mRNA levels. The -101 and -112 variants, in total linkage disequilibrium, conferred TUBB2A increased transcription rate. Furthermore, these variants protected from paclitaxel-induced peripheral neuropathy [HR, 0.62; 95% confidence interval (CI), 0.42-0.93; P = 0.021, multivariable analysis]. In addition, an inverse correlation between TUBB2A and paclitaxel-induced apoptosis (P = 0.001) in lymphoblastoid cell lines further supported that higher TUBB2A gene expression conferred lower paclitaxel sensitivity. CONCLUSIONS This is the first study showing that paclitaxel neuropathy risk is influenced by polymorphisms regulating the expression of a β-tubulin gene.
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Meregalli C, Ceresa C, Canta A, Carozzi VA, Chiorazzi A, Sala B, Oggioni N, Lanza M, Letari O, Ferrari F, Avezza F, Marmiroli P, Caselli G, Cavaletti G. CR4056, a new analgesic I2 ligand, is highly effective against bortezomib-induced painful neuropathy in rats. J Pain Res 2012; 5:151-67. [PMID: 22792002 PMCID: PMC3392714 DOI: 10.2147/jpr.s32122] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Although bortezomib (BTZ) is the frontline treatment for multiple myeloma, its clinical use is limited by the occurrence of painful peripheral neuropathy, whose treatment is still an unmet clinical need. Previous studies have shown chronic BTZ administration (0.20 mg/kg intravenously three times a week for 8 weeks) to female Wistar rats induced a peripheral neuropathy similar to that observed in humans. In this animal model of BTZ-induced neurotoxicity, the present authors evaluated the efficacy of CR4056, a novel I2 ligand endowed with a remarkable efficacy in several animal pain models. CR4056 was administered in a wide range of doses (0.6-60 mg/kg by gavage every day for 2-3 weeks) in comparison with buprenorphine (Bupre) (28.8 μg/kg subcutaneously every day for 2 weeks) and gabapentin (Gaba) (100 mg/kg by gavage every day for 3 weeks). Chronic administration of BTZ reduced nerve conduction velocity and induced allodynia. CR4056, Bupre, or Gaba did not affect the impaired nerve conduction velocity. Conversely, CR4056 dose-dependently reversed BTZ-induced allodynia (minimum effective dose 0.6 mg/kg). The optimal dose found, 6 mg/kg, provided a constant pain relief throughout the treatment period and without rebound after suspension, being effective when coadministered with BTZ, starting before or after allodynia was established, or when administered alone after BTZ cessation. A certain degree of tolerance was seen after 7 days of administration, but only at the highest doses (20 and 60 mg/kg). Bupre was effective only acutely, since tolerance was evident from the fourth day onwards. Gaba showed a significant activity only at the fourth day of treatment. CR4056, over the range of concentrations of 3-30 μM, was unable to hinder BTZ cytotoxicity on several tumor cell lines, which could indicate that this substance does not directly interfere with BTZ antitumor activity. Therefore, CR4056 could represent a new treatment option for BTZ-induced neuropathic pain.
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Affiliation(s)
- Cristina Meregalli
- Department of Neuroscience and Biomedical Technologies, University of Milan-Bicocca
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Kidwell KM, Yothers G, Ganz PA, Land SR, Ko CY, Cecchini RS, Kopec JA, Wolmark N. Long-term neurotoxicity effects of oxaliplatin added to fluorouracil and leucovorin as adjuvant therapy for colon cancer: results from National Surgical Adjuvant Breast and Bowel Project trials C-07 and LTS-01. Cancer 2012; 118:5614-22. [PMID: 22569841 DOI: 10.1002/cncr.27593] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 02/15/2012] [Accepted: 03/13/2012] [Indexed: 01/03/2023]
Abstract
BACKGROUND Neurotoxicity from adjuvant treatment with oxaliplatin has been studied in patients with colorectal carcinoma in short-term studies, but, to the authors' knowledge, the current article is the first long-term assessment which reports the National Surgical Adjuvant Breast and Bowel Project (NSABP) investigation of whether excess neurotoxicity persists beyond 4 years. METHODS As part of a colorectal cancer long-term survivor study (LTS-01), long-term neurotoxicity was assessed in 353 patients on NSABP Protocol C-07 (cross-sectional sample). Ninety-two of these patients from LTS-01 also had longitudinal data and were reassessed 5 to 8 years (median, 7 years) after random assignment (longitudinal sample). Contingency tables compared cohorts, a mixed model compared neurotoxicity between treatments over time, and a Wilcoxon rank-sum test compared neurotoxicity between treatments (cross-sectional sample). RESULTS In the cross-sectional sample, the increase in mean total neurotoxicity scores of 1.8 with oxaliplatin was statistically significant (P = .005), but not clinically significant (a minimally important difference of 4 was reported at the long-term assessment). Patients who received oxaliplatin had increased odds of numbness and tingling in hands (odds ratio, 2.00; P = .015) and feet (odds ratio, 2.78; P < .001) versus patients who did not receive oxaliplatin. The magnitude of the oxaliplatin effect varied with time (P < .001) in the longitudinal sample, such that the oxaliplatin-treated group did not have significantly greater total neurotoxicity scores by 7 years. CONCLUSIONS At the long-term endpoint, there was no clinically significant increase in total neurotoxicity scores for patients who received oxaliplatin, but the specific neurotoxicities of numbness and tingling of the hands and feet remained significantly elevated for oxaliplatin-treated patients.
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Affiliation(s)
- Kelley M Kidwell
- National Surgical Adjuvant Breast and Bowel Project Operations and Biostatistical Centers, Pittsburgh, Pennsylvania 15213, USA.
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Abstract
This review concerns the effects on vision and the eye of medications prescribed at three phases of treatment for women with early-stage breast cancer (BC): (1) adjuvant cytotoxic chemotherapy, (2) adjuvant endocrine therapy, and (3) symptomatic relief. The most common side effects of cytotoxic chemotherapy are epiphora and ocular surface irritation, which can be caused by any of several different regimens. Most notably, the taxane docetaxel can lead to epiphora by inducing canalicular stenosis. The selective-estrogen-receptor-modulator (SERM) tamoxifen, long the gold-standard adjuvant-endocrine-therapy for women with hormone-receptor-positive BC, increases the risk of posterior subcapsular cataract. Tamoxifen also affects the optic nerve head more often than previously thought, apparently by causing subclinical swelling within the first 2 years of use for women older than ∼50 years. Tamoxifen retinopathy is rare, but it can cause foveal cystoid spaces that are revealed with spectral-domain optical coherence tomography (OCT) and that may increase the risk for macular holes. Tamoxifen often alters the perceived color of flashed lights detected via short-wavelength-sensitive (SWS) cone response isolated psychophysically; these altered perceptions may reflect a neural-response sluggishness that becomes evident at ∼2 years of use. The aromatase inhibitor (AI) anastrozole affects perception similarly, but in an age-dependent manner suggesting that the change of estrogen activity towards lower levels is more important than the low estrogen activity itself. Based on analysis of OCT retinal thickness data, it is likely that anastrozole increases the tractional force between the vitreous and retina. Consequently, AI users, myopic AI users particularly, might be at increased risk for traction-related vision loss. Because bisphosphonates are sometimes prescribed to redress AI-induced bone loss, clinicians should be aware of their potential to cause scleritis and uveitis occasionally. We conclude by suggesting some avenues for future research into the visual and ocular effects of AIs, particularly as relates to assessment of cognitive function.
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Affiliation(s)
- Alvin Eisner
- Women's Health Research Unit, Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, Oregon 97239, USA.
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Brahmachari B, Hazra A, Majumdar A. Adverse drug reaction profile of nanoparticle versus conventional formulation of paclitaxel: An observational study. Indian J Pharmacol 2011; 43:126-30. [PMID: 21572644 PMCID: PMC3081448 DOI: 10.4103/0253-7613.77341] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 07/16/2010] [Accepted: 12/31/2010] [Indexed: 11/09/2022] Open
Abstract
Objectives: Conventional polyethoxylated castor oil (PCO)-based paclitaxel is associated with major adverse drug reactions (ADRs). Nanoxel, a nanoparticle-based formulation, may improve its tolerability by removing the need for PCO vehicle, and also permit its use in a higher dose. We conducted intensive monitoring of the ADR profile of Nanoxel in comparison with conventional paclitaxel in a public tertiary care set-up. Materials and Methods: ADR data were collected from 10 patients receiving Nanoxel and 10 age-matched controls receiving conventional paclitaxel in this longitudinal observational study, conducted in a medical oncology ward over 18 months. Severity was graded as per US National Cancer Institute Common Terminology Criteria for Adverse Events. Results: The groups had comparable demography at baseline. The median disease duration and per cycle median dose of paclitaxel were greater in the Nanoxel arm. Total 119 ADRs were noted with Nanoxel and 123 with conventional paclitaxel. Of these, 25 (21.0%, 95% CI 13.69–28.33%) in the Nanoxel and 20 (16.2%, 95% CI 9.74–22.78%) in paclitaxel group were of grade 3/4 severity. Common events included myalgia, nausea, anemia, paresthesia, alopecia, diarrhea, and vomiting with Nanoxel, and paresthesia, anemia, myalgia, anorexia, alopecia, vomiting, diarrhea, stomatitis, and nausea with paclitaxel. Of the less common events (<5%), grade 2 or 3 arthralgia was seen exclusively with Nanoxel while motor neuropathy with muscular weakness was more frequent and severe with conventional paclitaxel. Hypersensitivity reactions were not encountered in either arm, although no antiallergy premedication was employed for Nanoxel. Conclusions: Despite its ADR profile being statistically comparable to conventional paclitaxel, this observational study suggests that Nanoxel tolerability could be better, considering that a significantly higher dose was employed. This hypothesis needs confirmation through an interventional study.
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Affiliation(s)
- Ballari Brahmachari
- Department of Pharmacology, Institute of Postgraduate Medical Education & Research (IPGMER), 244B, Acharya J. C. Bose Road, Kolkata, West Bengal, India
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Wozniak KM, Nomoto K, Lapidus RG, Wu Y, Carozzi V, Cavaletti G, Hayakawa K, Hosokawa S, Towle MJ, Littlefield BA, Slusher BS. Comparison of neuropathy-inducing effects of eribulin mesylate, paclitaxel, and ixabepilone in mice. Cancer Res 2011; 71:3952-62. [PMID: 21498637 DOI: 10.1158/0008-5472.can-10-4184] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chemotherapy-induced neurotoxicity is a significant problem associated with successful treatment of many cancers. Tubulin is a well-established target of antineoplastic therapy; however, tubulin-targeting agents, such as paclitaxel and the newer epothilones, induce significant neurotoxicity. Eribulin mesylate, a novel microtubule-targeting analogue of the marine natural product halichondrin B, has recently shown antineoplastic activity, with relatively low incidence and severity of neuropathy, in metastatic breast cancer patients. The mechanism of chemotherapy-induced neuropathy is not well understood. One of the main underlying reasons is incomplete characterization of pathology of peripheral nerves from treated subjects, either from patients or preclinically from animals. The current study was conducted to directly compare, in mice, the neuropathy-inducing propensity of three drugs: paclitaxel, ixabepilone, and eribulin mesylate. Because these drugs have different potencies and pharmacokinetics, we compared them on the basis of a maximum tolerated dose (MTD). Effects of each drug on caudal and digital nerve conduction velocity, nerve amplitude, and sciatic nerve and dorsal root ganglion morphology at 0.25 × MTD, 0.5 × MTD, 0.75 × MTD, and MTD were compared. Paclitaxel and ixabepilone, at their respective MTDs, produced significant deficits in caudal nerve conduction velocity, caudal amplitude and digital nerve amplitudes, as well as moderate to severe degenerative pathologic changes in dorsal root ganglia and sciatic nerve. In contrast, eribulin mesylate produced no significant deleterious effects on any nerve conduction parameter measured and caused milder, less frequent effects on morphology. Overall, our findings indicate that eribulin mesylate induces less neuropathy in mice than paclitaxel or ixabepilone at equivalent MTD-based doses.
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Identifying factors associated with falls in postmenopausal breast cancer survivors: a multi-disciplinary approach. Arch Phys Med Rehabil 2011; 92:646-52. [PMID: 21367394 DOI: 10.1016/j.apmr.2010.10.039] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 10/21/2010] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To identify neuromuscular, balance, and vision factors that contribute to falls in recently treated breast cancer survivors (BCS) and explore links between fall risk factors and cancer treatment. DESIGN Case-control plus prospective observation. SETTING Comprehensive cancer center. PARTICIPANTS BCS (N=59; mean age, 58y) within 2 years of chemotherapy completion and/or on adjuvant endocrine therapy. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Objective measures of postural control, vision, and neuromuscular function included: (1) a sensory organization test (SOT), (2) a visual assessment battery, (3) muscle mass by dual energy x-ray absorptiometry, and (4) neuromuscular function with strength by repetition maximum, power by timed stair climb, and gait speed by 4m walk. Falls were self-reported for the past year (retrospective) and monthly for 6 months (prospective). RESULTS Fifty eight percent of BCS reported falls in the past year. BCS with a history of falls had lower SOT scores with a vestibular deficit pattern in postural control (P<.01) and took longer to read letters on the contrast sensitivity chart (P<.05). Vestibular score on the SOT mediated the relationship between treatment and falls among BCS who received chemotherapy only, but not adjuvant endocrine therapy. CONCLUSIONS Results of this project suggest that balance disturbances of vestibular origin and delays in detecting low contrast visual stimuli are associated with falls in BCS. Future studies that track falls and fall risk factors in BCS from diagnosis through treatment are warranted, as are studies that can identify treatment-related vestibular dysfunction and altered visual processing.
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Abstract
Microtubules are dynamic filamentous cytoskeletal proteins composed of tubulin and are an important therapeutic target in tumour cells. Agents that bind to microtubules have been part of the pharmacopoeia of anticancer therapy for decades and until the advent of targeted therapy, microtubules were the only alternative to DNA as a therapeutic target in cancer. The screening of a range of botanical species and marine organisms has yielded promising new antitubulin agents with novel properties. In the current search for novel microtubule-binding agents, enhanced tumour specificity, reduced neurotoxicity and insensitivity to chemoresistance mechanisms are the three main objectives.
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Affiliation(s)
- Charles Dumontet
- INSERM 590, Faculté Rockefeller, 8 Avenue Rockefeller, 69008 Lyon, France and Université Lyon 1, ISPB, Lyon, F-69003, France.
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A review of exercise interventions to improve bone health in adult cancer survivors. J Cancer Surviv 2010; 4:187-201. [PMID: 20373041 DOI: 10.1007/s11764-010-0122-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 03/01/2010] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Cancer-treatment induced bone loss and associated fracture risk is a growing concern for cancer survivors. Exercise offers a non-pharmacologic strategy for preserving bone health during and after treatment, but only until recently has it been studied for its efficacy and safety in cancer survivors. The purpose of this review is to provide an early qualitative evaluation of exercise trials in adult cancer survivors with bone health as a primary or secondary endpoint. METHODS Databases were searched for exercise trials in adult cancer survivors that reported data on bone health (bone mineral density (BMD) and/or bone remodeling markers) as an outcome measure and were published and indexed prior to January 1st, 2010. Data relevant to evaluation of study design, sample, exercise protocol, bone health assessment, statistical approach and findings were extracted, summarized and interpreted. RESULTS Eight trials were identified that met criteria for inclusion in the review. While most studies were conducted in breast cancer survivors, remaining study attributes including rigor, design, exercise program characteristics and length varied considerably across studies. Only three of the eight studies were controlled exercise trials with usual care control groups. Of these, two reported significant group x time interactions where aerobic exercise preserved BMD at the spine or whole body compared to losses in controls and none reported exercise benefits at the hip. CONCLUSIONS The recent emergence of exercise studies in cancer survivors with bone outcomes highlights the importance of this area of cancer survivorship. Collectively, the studies are limited in number and are too varied to warrant conclusions regarding the skeletal benefits of exercise during or after cancer treatment, though early results are encouraging and more rigorous study should follow.
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