1
|
Knippen S, Schönherr S, Schwedas M, Teichmann T, Howitz S, Mäurer M, Wittig-Sauerwein A, Duma MN. Low doses to the heart in daily practice for treating left-sided breast cancer using accelerated partial-breast irradiation by multicatheter brachytherapy and deep-inspiration breath-hold using a SIB. Strahlenther Onkol 2023; 199:389-395. [PMID: 36826517 PMCID: PMC10033472 DOI: 10.1007/s00066-023-02047-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 01/15/2023] [Indexed: 02/25/2023]
Abstract
PURPOSE The aim of this study was to analyze the heart dose for left-sided breast cancer that can be achieved during daily practice in patients treated with multicatheter brachytherapy (MCBT) accelerated partial-breast irradiation (APBI) and deep-inspiration breath-hold (DIBH) whole-breast irradiation (WBI) using a simultaneous integrated tumor bed boost (SIB)-two different concepts which nonetheless share some patient overlap. MATERIALS AND METHODS We analyzed the nominal average dose (Dmean) to the heart as well as the biologically effective dose (BED) and the equivalent dose in 2‑Gy fractions (EQD2) for an α/β of 3 in 30 MCBT-APBI patients and 22 patients treated with DIBH plus SIB. For further dosimetric comparison, we contoured the breast planning target volume (PTV) in each of the brachytherapy planning CTs according to the ESTRO guidelines and computed tangential field plans. Mean dose (Dmean), EQD2 Dmean, and BED Dmean for three dosing schemes were calculated: 50 Gy/25 fractions and two hypofractionated regimens, i.e., 40.05 Gy/15 fractions and 26 Gy/5 fractions. Furthermore, we calculated tangential field plans without a boost for the 22 cases treated with SIB with the standard dosing scheme of 40.05 Gy/15 fractions. RESULTS MCBT and DIBH radiation therapy both show low-dose exposure of the heart. As expected, hypofractionation leads to sparing of the heart dose. Although MCBT plans were not optimized regarding dose to the heart, Dmean differed significantly between MCBT and DIBH (1.28 Gy vs. 1.91 Gy, p < 0.001) in favor of MCBT, even if the Dmean in each group was very low. In MCBT radiation, the PTV-heart distance is significantly associated with the dose to the heart (p < 0.001), but it is not in DIBH radiotherapy using SIB. CONCLUSION In daily practice, both DIBH radiation therapy as well as MCBT show a very low heart exposure and may thus reduce long term cardiac morbidity as compared to currently available long-term clinical data of patients treated with conventional tangential field plans in free breathing. Our analysis confirms particularly good cardiac sparing with MCBT-APBI, so that this technique should be offered to patients with left-sided breast cancer if the tumor-associated eligibility criteria are fulfilled.
Collapse
Affiliation(s)
- Stefan Knippen
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany.
- Department of Radiation Oncology, Helios Kliniken Schwerin - University Campus of MSH Medical School Hamburg, Schwerin, Germany.
| | - Sven Schönherr
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
| | - Michael Schwedas
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
| | - Tobias Teichmann
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
| | - Simon Howitz
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
- Department of Radiation Oncology, SRH Wald-Klinikum Gera, Gera, Germany
| | - Matthias Mäurer
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
| | - Andrea Wittig-Sauerwein
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
| | - Marciana-Nona Duma
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich Schiller University, Jena, Germany
- Department of Radiation Oncology, Helios Kliniken Schwerin - University Campus of MSH Medical School Hamburg, Schwerin, Germany
- MSH Medical School Hamburg, Department for Human Medicine, Hamburg, Germany
| |
Collapse
|
2
|
Méndez-Valdés G, Gómez-Hevia F, Bragato MC, Lillo-Moya J, Rojas-Solé C, Saso L, Rodrigo R. Antioxidant Protection against Trastuzumab Cardiotoxicity in Breast Cancer Therapy. Antioxidants (Basel) 2023; 12:antiox12020457. [PMID: 36830015 PMCID: PMC9952697 DOI: 10.3390/antiox12020457] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
Breast cancer is the most frequent malignant neoplastic disease in women, with an estimated 2.3 million cases in 2020 worldwide. Its treatment depends on characteristics of the patient and the tumor. In the latter, characteristics include cell type and morphology, anatomical location, and immunophenotype. Concerning this latter aspect, the overexpression of the HER2 receptor, expressed in 15-25% of tumors, is associated with greater aggressiveness and worse prognosis. In recent times some monoclonal antibodies have been developed in order to target HER2 receptor overexpression. Trastuzumab is part of the monoclonal antibodies used as targeted therapy against HER2 receptor, whose major problem is its cardiac safety profile, where it has been associated with cardiotoxicity. The appearance of cardiotoxicity is an indication to stop therapy. Although the pathophysiological mechanism is poorly known, evidence indicates that oxidative stress plays a fundamental role causing DNA damage, increased cytosolic and mitochondrial ROS production, changes in mitochondrial membrane potential, intracellular calcium dysregulation, and the consequent cell death through different pathways. The aim of this review was to explore the use of antioxidants as adjuvant therapy to trastuzumab to prevent its cardiac toxicity, thus leading to ameliorate its safety profile in its administration.
Collapse
Affiliation(s)
- Gabriel Méndez-Valdés
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile
| | - Francisca Gómez-Hevia
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile
| | | | - José Lillo-Moya
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile
| | - Catalina Rojas-Solé
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, Faculty of Pharmacy and Medicine, Sapienza University, P.Le Aldo Moro 5, 00185 Rome, Italy
| | - Ramón Rodrigo
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380000, Chile
- Correspondence: ; Tel.: +56-229786126
| |
Collapse
|
3
|
Marchi PH, Vendramini THA, Perini MP, Zafalon RVA, Amaral AR, Ochamotto VA, Da Silveira JC, Dagli MLZ, Brunetto MA. Obesity, inflammation, and cancer in dogs: Review and perspectives. Front Vet Sci 2022; 9:1004122. [PMID: 36262532 PMCID: PMC9573962 DOI: 10.3389/fvets.2022.1004122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Obesity is the most common nutritional disease in dogs, and its prevalence has increased in recent decades. Several countries have demonstrated a prevalence of obesity in dogs similar to that observed in humans. Chronic low-grade inflammation is a prominent basis used to explain how obesity results in numerous negative health consequences. This is well known and understood, and recent studies have pointed to the association between obesity and predisposition to specific types of cancers and their complications. Such elucidations are important because, like obesity, the prevalence of cancer in dogs has increased in recent decades, establishing cancer as a significant cause of death for these animals. In the same way, intensive advances in technology in the field of human and veterinary medicine (which even proposes the use of animal models) have optimized existing therapeutic methods, led to the development of innovative treatments, and shortened the time to diagnosis of cancer. Despite the great challenges, this review aims to highlight the evidence obtained to date on the association between obesity, inflammation, and cancer in dogs, and the possible pathophysiological mechanisms that link obesity and carcinogenesis. The potential to control cancer in animals using existing knowledge is also presented.
Collapse
Affiliation(s)
- Pedro H. Marchi
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Thiago H. A. Vendramini
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Mariana P. Perini
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Rafael V. A. Zafalon
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Andressa R. Amaral
- Veterinary Nutrology Service, Veterinary Teaching Hospital of the School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Vanessa A. Ochamotto
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil
| | - Juliano C. Da Silveira
- Laboratory of Molecular, Morphophysiology and Development (LMMD), Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Maria L. Z. Dagli
- Laboratory of Experimental and Comparative Oncology, Department of Pathology, School of Veterinary Medicine and Animal Science of the University of São Paulo, São Paulo, Brazil
| | - Marcio A. Brunetto
- Pet Nutrology Research Center, Department of Animal Nutrition and Production of the School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, Brazil,Veterinary Nutrology Service, Veterinary Teaching Hospital of the School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil,*Correspondence: Marcio A. Brunetto
| |
Collapse
|
4
|
Cardiac safety analysis of anti-HER2-targeted therapy in early breast cancer. Sci Rep 2022; 12:14312. [PMID: 35995984 PMCID: PMC9395410 DOI: 10.1038/s41598-022-18342-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/09/2022] [Indexed: 11/22/2022] Open
Abstract
To evaluate the cardiac safety of anti-HER2-targeted therapy for early breast cancer; to investigate whether trastuzumab combined with pertuzumab increases cardiac toxicity compared with trastuzumab; to evaluate the predictive value of high-sensitivity Troponin (hs-TnI) and QTc for the cardiotoxicity associated with anti-HER2 targeted therapy in early breast cancer. A total of 420 patients with early-stage HER2-positive breast cancer who received trastuzumab or trastuzumab combined with pertuzumab for more than half a year in Tianjin Medical University Cancer Hospital from January 2018 to February 2021 were included. Left ventricle ejection fraction (LVEF), hs-TnI values, and QTc were measured at baseline and 3, 6, 9, 12 months. Cardiotoxicity was defined as a decrease in LVEF of at least 10 percentage points from baseline on follow-up echocardiography. Cardiotoxicity developed in 67 of the 420 patients (15.9%) and all patients had LVEF above 50% before and after treatment. The incidence of cardiotoxicity in trastuzumab and trastuzumab combined with pertuzumab was 14.3% and 17.9%, respectively (P > 0.05). Logistic regression analysis showed that age, coronary heart disease, left chest wall radiotherapy, and anthracyclines sequential therapy were independent risk factors for cardiotoxicity (P < 0.05). The value of hs-TnI and QTc at the end of treatment (12th month) were selected for ROC curve prediction analysis and the area under the ROC curve was 0.724 and 0.713, respectively, which was significantly different from the area of 0.5 (P < 0.05). The decrease of LVEF in the study was mostly asymptomatic, from the heart safety point of view, the anti-HER2 targeted therapy for early breast cancer was well tolerated. Trastuzumab combined with pertuzumab did not significantly increase cardiotoxicity. However, subgroup analysis suggests that in the presence of coronary artery disease (CAD) and sequential treatment with anthracene, trastuzumab and pertuzumab may increase the cardiac burden compared with trastuzumab. Hs-TnI and QTc may be useful in monitoring and predicting cardiotoxicity associated with anti-HER2 targeted therapy for early breast cancer.
Collapse
|
5
|
Bhardwaj NJ, Chae K, Sheng JY, Yeh HC. Clinical interventions to break the obesity and cancer link: a narrative review. Cancer Metastasis Rev 2022; 41:719-735. [PMID: 35933566 DOI: 10.1007/s10555-022-10055-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 07/25/2022] [Indexed: 11/26/2022]
Abstract
Excess body weight is a significant risk factor for the development and recurrence of many types of cancer. Patients with a history or current diagnosis of cancer who are overweight or have obesity have an increased risk of cancer treatment-related morbidity, recurrence, and decreased quality of life. Weight loss and maintenance of a healthy body weight may reduce cancer morbidity and recurrence in cancer survivors. While guidelines for cancer survivorship elaborate sufficiently on lifestyle interventions, little guidance is provided when considering additional therapies like anti-obesity pharmacotherapy or bariatric surgery for weight loss. This review will highlight and address current recommendations and feasible interventions that clinicians may consider to further reduce the incidence and recurrence of cancer in patients with obesity.
Collapse
Affiliation(s)
- Nakul J Bhardwaj
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Kacey Chae
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Jennifer Y Sheng
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Hsin-Chieh Yeh
- Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA.
| |
Collapse
|
6
|
Kwan ML, Cheng RK, Iribarren C, Neugebauer R, Rana JS, Nguyen-Huynh M, Shi Z, Laurent CA, Lee VS, Roh JM, Shen H, Rillamas-Sun E, Santiago-Torres M, Hershman DL, Kushi LH, Greenlee H. Risk of Cardiometabolic Risk Factors in Women With and Without a History of Breast Cancer: The Pathways Heart Study. J Clin Oncol 2022; 40:1635-1646. [PMID: 35025627 PMCID: PMC9113213 DOI: 10.1200/jco.21.01738] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
PURPOSE The incidence of cardiometabolic risk factors in breast cancer (BC) survivors has not been well described. Thus, we compared risk of hypertension, diabetes, and dyslipidemia in women with and without BC. METHODS Women with invasive BC diagnosed from 2005 to 2013 at Kaiser Permanente Northern California (KPNC) were identified and matched 1:5 to noncancer controls on birth year, race, and ethnicity. Cumulative incidence rates of hypertension, diabetes, and dyslipidemia were estimated with competing risk of overall death. Subdistribution hazard ratios (sHRs) were estimated by Fine and Gray regression, adjusted for cardiovascular disease-related risk factors, and stratified by treatment and body mass index (BMI). RESULTS A total of 14,942 BC cases and 74,702 matched controls were identified with mean age 61.2 years and 65% non-Hispanic White. Compared with controls, BC cases had higher cumulative incidence rates of hypertension (10.9% v 8.9%) and diabetes (2.1% v 1.7%) after 2 years, with higher diabetes incidence persisting after 10 years (9.3% v 8.8%). In multivariable models, cases had higher risk of diabetes (sHR, 1.16; 95% CI, 1.07 to 1.26) versus controls. Cases treated with chemotherapy (sHR, 1.23; 95% CI, 1.11 to 1.38), left-sided radiation (sHR, 1.29; 95% CI, 1.13 to 1.48), or endocrine therapy (sHR, 1.23; 95% CI, 1.12 to 1.34) continued to have higher diabetes risk. Hypertension risk was higher for cases receiving left-sided radiation (sHR, 1.11; 95% CI, 1.02 to 1.21) or endocrine therapy (sHR, 1.10; 95% CI, 1.03 to 1.16). Normal-weight (BMI < 24.9 kg/m2) cases had higher risks overall and within treatment subgroups versus controls. CONCLUSION BC survivors at KPNC experienced elevated risks of diabetes and hypertension compared with women without BC depending on treatments received and BMI. Future studies should examine strategies for cardiometabolic risk factor prevention in BC survivors.
Collapse
Affiliation(s)
- Marilyn L Kwan
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Richard K Cheng
- University of Washington School of Medicine, Seattle, WA.,Seattle Cancer Care Alliance, Seattle, WA, US
| | - Carlos Iribarren
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Romain Neugebauer
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Jamal S Rana
- Division of Research, Kaiser Permanente Northern California, Oakland, CA.,Oakland Medical Center, Kaiser Permanente Northern California, Oakland, CA
| | - Mai Nguyen-Huynh
- Division of Research, Kaiser Permanente Northern California, Oakland, CA.,Walnut Creek Medical Center, Kaiser Permanente Northern California, Walnut Creek, CA
| | - Zaixing Shi
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Key Laboratory of Health Technology Assessment of Fujian Province, School of Public Health, Xiamen University, Xiamen, China.,Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Cecile A Laurent
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Valerie S Lee
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Janise M Roh
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Hanjie Shen
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Eileen Rillamas-Sun
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Dawn L Hershman
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Lawrence H Kushi
- Division of Research, Kaiser Permanente Northern California, Oakland, CA
| | - Heather Greenlee
- University of Washington School of Medicine, Seattle, WA.,Seattle Cancer Care Alliance, Seattle, WA, US.,Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| |
Collapse
|
7
|
Gallo M, Adinolfi V, Barucca V, Prinzi N, Renzelli V, Barrea L, Di Giacinto P, Ruggeri RM, Sesti F, Arvat E, Baldelli R, Arvat E, Colao A, Isidori A, Lenzi A, Baldell R, Albertelli M, Attala D, Bianchi A, Di Sarno A, Feola T, Mazziotti G, Nervo A, Pozza C, Puliani G, Razzore P, Ramponi S, Ricciardi S, Rizza L, Rota F, Sbardella E, Zatelli MC. Expected and paradoxical effects of obesity on cancer treatment response. Rev Endocr Metab Disord 2021; 22:681-702. [PMID: 33025385 DOI: 10.1007/s11154-020-09597-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/25/2020] [Indexed: 12/12/2022]
Abstract
Obesity, whose prevalence is pandemic and continuing to increase, is a major preventable and modifiable risk factor for diabetes and cardiovascular diseases, as well as for cancer. Furthermore, epidemiological studies have shown that obesity is a negative independent prognostic factor for several oncological outcomes, including overall and cancer-specific survival, for several site-specific cancers as well as for all cancers combined. Yet, a recently growing body of evidence suggests that sometimes overweight and obesity may associate with better outcomes, and that immunotherapy may show improved response among obese patients compared with patients with a normal weight. The so-called 'obesity paradox' has been reported in several advanced cancer as well as in other diseases, albeit the mechanisms behind this unexpected relationship are still not clear. Aim of this review is to explore the expected as well as the paradoxical relationship between obesity and cancer prognosis, with a particular emphasis on the effects of cancer therapies in obese people.
Collapse
Affiliation(s)
- Marco Gallo
- Oncological Endocrinology Unit, Department of Medical Sciences, University of Turin, AOU Città della Salute e della Scienza di Torino, Via Genova, 3, 10126, Turin, Italy.
| | - Valerio Adinolfi
- Endocrinology and Diabetology Unit, ASL Verbano Cusio Ossola, Domodossola, Italy
| | - Viola Barucca
- Oncology Unit, Department of Oncology and Medical Specialities, AO San Camillo-Forlanini, Rome, Italy
| | - Natalie Prinzi
- ENETS Center of Excellence, Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale Tumori Milano, Milan, Italy
| | - Valerio Renzelli
- Department of Experimental Medicine, AO S. Andrea, Sapienza University of Rome, Rome, Italy
| | - Luigi Barrea
- Endocrinology Unit, Department of Clinical Medicine and Surgery, Federico II University Medical School of Naples, Naples, Italy
| | - Paola Di Giacinto
- Endocrinology Unit, Department of Oncology and Medical Specialities, AO San Camillo-Forlanini, Rome, Italy
| | - Rosaria Maddalena Ruggeri
- Endocrine Unit, Department of Clinical and Experimental Medicine, University of Messina, AOU Policlinico G. Martino, Messina, Italy
| | - Franz Sesti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Emanuela Arvat
- Oncological Endocrinology Unit, Department of Medical Sciences, University of Turin, AOU Città della Salute e della Scienza di Torino, Via Genova, 3, 10126, Turin, Italy
| | - Roberto Baldelli
- Endocrinology Unit, Department of Oncology and Medical Specialities, AO San Camillo-Forlanini, Rome, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Zhao C, Hu W, Xu Y, Wang D, Wang Y, Lv W, Xiong M, Yi Y, Wang H, Zhang Q, Wu Y. Current Landscape: The Mechanism and Therapeutic Impact of Obesity for Breast Cancer. Front Oncol 2021; 11:704893. [PMID: 34350120 PMCID: PMC8326839 DOI: 10.3389/fonc.2021.704893] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/05/2021] [Indexed: 12/22/2022] Open
Abstract
Obesity is defined as a chronic disease induced by an imbalance of energy homeostasis. Obesity is a widespread health problem with increasing prevalence worldwide. Breast cancer (BC) has already been the most common cancer and one of the leading causes of cancer death in women worldwide. Nowadays, the impact of the rising prevalence of obesity has been recognized as a nonnegligible issue for BC development, outcome, and management. Adipokines, insulin and insulin-like growth factor, sex hormone and the chronic inflammation state play critical roles in the vicious crosstalk between obesity and BC. Furthermore, obesity can affect the efficacy and side effects of multiple therapies such as surgery, radiotherapy, chemotherapy, endocrine therapy, immunotherapy and weight management of BC. In this review, we focus on the current landscape of the mechanisms of obesity in fueling BC and the impact of obesity on diverse therapeutic interventions. An in-depth exploration of the underlying mechanisms linking obesity and BC will improve the efficiency of the existing treatments and even provide novel treatment strategies for BC treatment.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Haiping Wang
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qi Zhang
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiping Wu
- Department of Plastic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
9
|
Griggs JJ, Bohlke K, Balaban EP, Dignam JJ, Hall ET, Harvey RD, Hecht DP, Klute KA, Morrison VA, Pini TM, Rosner GL, Runowicz CD, Shayne M, Sparreboom A, Turner S, Zarwan C, Lyman GH. Appropriate Systemic Therapy Dosing for Obese Adult Patients With Cancer: ASCO Guideline Update. J Clin Oncol 2021; 39:2037-2048. [PMID: 33939491 DOI: 10.1200/jco.21.00471] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
PURPOSE To provide recommendations for appropriate dosing of systemic antineoplastic agents in obese adults with cancer. METHODS A systematic review of the literature collected evidence regarding dosing of chemotherapy, immunotherapy, and targeted therapies in obese adults with cancer. PubMed and the Cochrane Library were searched for randomized controlled trials, meta-analyses, or cohort studies published from November 1, 2010, through March 27, 2020. ASCO convened an Expert Panel to review the evidence and formulate recommendations. RESULTS Sixty studies, primarily retrospective, were included in the review. Overall, the evidence supported previous findings that obese adult patients tolerate full, body-size-based dosing of chemotherapy as well as nonobese patients. Fewer studies have addressed the dosing of targeted therapies and immunotherapies in relation to safety and efficacy in obese patients. RECOMMENDATIONS The Panel continues to recommend that full, weight-based cytotoxic chemotherapy doses be used to treat obese adults with cancer. New to this version of the guideline, the Panel also recommends that full, approved doses of immunotherapy and targeted therapies be offered to obese adults with cancer. In the event of toxicity, the consensus of the Panel is that dose modifications of systemic antineoplastic therapies should be handled similarly for obese and nonobese patients. Important areas for future research include the impact of sarcopenia and other measures of body composition on optimal antineoplastic dosing, and more customized dosing based on pharmacokinetic or pharmacogenetic factors.Additional information is available at www.asco.org/supportive-care-guidelines.
Collapse
Affiliation(s)
| | - Kari Bohlke
- American Society of Clinical Oncology, Alexandria, VA
| | | | | | - Evan T Hall
- Fred Hutchinson Cancer Research Center and University of Washington, Seattle, WA
| | | | - Diane P Hecht
- University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Vicki A Morrison
- University of Minnesota Hennepin County Medical Center, Minneapolis, MN
| | | | | | - Carolyn D Runowicz
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL
| | | | | | | | | | - Gary H Lyman
- Fred Hutchinson Cancer Research Center and University of Washington, Seattle, WA
| |
Collapse
|
10
|
Nicchio BO, Barrouin-Melo SM, Machado MC, Vieira-Filho CH, Santos FL, Martins-Filho EF, Barbosa VF, Barral TD, Portela RW, Damasceno KA, Estrela-Lima A. Hyperresistinemia in Obese Female Dogs With Mammary Carcinoma in Benign-Mixed Tumors and Its Correlation With Tumor Aggressiveness and Survival. Front Vet Sci 2020; 7:509. [PMID: 32903534 PMCID: PMC7438446 DOI: 10.3389/fvets.2020.00509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/03/2020] [Indexed: 12/16/2022] Open
Abstract
Resistin is associated with metabolic, inflammatory, and neoplastic disorders, and is also considered a prognostic marker in human oncology. Canine mammary tumors have epidemiological, clinical, biological, and genetic characteristics similar to those of women and are proposed as a comparative study model. Here, we evaluate the serum levels of resistin in female dogs with or without mammary carcinoma in mixed tumors (CBMT) and its correlation with the proliferative potential of the tumor, obesity, and survival. Eighty dogs grouped according to the presence (50) or absence (30) of CBMT, reproductive status and body condition were assessed for weight, fat percentage, and canine body mass index. The characteristic of the proliferative potential of the tumor (Ki-67) was evaluated. Ki-67 levels (p = 0.024), staging (p = 0.004), and grade (p = 0.016) influenced the survival of the female dogs. Through a multifactorial analysis, it could be seen that the parameters proliferation index (Ki-67) (p = 0.044) and staging (p = 0.036) influenced the survival of the animals. Neutered and overweight dogs from the control and CBMT groups showed hyperresistinemia. Ki-67 expression and resistin levels in dogs with CBMT were higher in overweight dogs than in dogs with normal weight (p = 0.0001). The survival rate of dogs with CBMT, obese and with high levels of resistin (8,400 μg L−1) was lower when compared to those with lower levels of resistin. These results showed an important relationship between hyperresistinemia, tumor proliferative potential and excessive body fat, suggesting that resistin levels may act as an interesting prognostic marker in patients with CBMT.
Collapse
Affiliation(s)
- Bianca Oliveira Nicchio
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | | | - Marilia Carneiro Machado
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | - Carlos Humberto Vieira-Filho
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | - Ferlando Lima Santos
- Health Science Center, Federal University of the Recôncavo of Bahia, Santo Antônio de Jesus, Brazil
| | - Emanoel Ferreira Martins-Filho
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| | | | - Thiago Doria Barral
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Ricardo Wagner Portela
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Karine Araújo Damasceno
- Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil.,Laboratory of Experimental Pathology, Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, Brazil
| | - Alessandra Estrela-Lima
- School of Veterinary Medicine, Federal University of Bahia, Salvador, Brazil.,Research Center on Mammary Oncology NPqOM/HOSPMEV/UFBA, Salvador, Brazil
| |
Collapse
|
11
|
The role of metabolic diseases in cardiotoxicity associated with cancer therapy: What we know, what we would know. Life Sci 2020; 255:117843. [PMID: 32464123 DOI: 10.1016/j.lfs.2020.117843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/16/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022]
Abstract
Metabolic diseases, such as obesity and type 2 diabetes, are known risk factors for cardiovascular (CV) diseases. Thus, patients with those comorbidities could be at increased risk of experiencing cardiotoxicity related to treatment with Anthracyclines and the other new generation targeted anticancer drugs. However, investigations addressing the mechanisms underlying the development of CV complications and poor outcome in such cohort of patients are still few and controversial. Given the importance of a personalized approach against chemotherapy-induced cardiomyopathy, this review summarizes our current knowledge on the pathophysiology of chemotherapy-induced cardiomyopathy and its association with obesity and type 2 diabetes. Along with clinical evidences, future perspectives of preclinical research around this field and its role in addressing important open questions, including the development of more proactive strategies for prevention, and treatment of cardiotoxicity during and after chemotherapy in the presence of metabolic diseases, is also presented.
Collapse
|
12
|
Cadeddu Dessalvi C, Pepe A, Penna C, Gimelli A, Madonna R, Mele D, Monte I, Novo G, Nugara C, Zito C, Moslehi JJ, de Boer RA, Lyon AR, Tocchetti CG, Mercuro G. Sex differences in anthracycline-induced cardiotoxicity: the benefits of estrogens. Heart Fail Rev 2020; 24:915-925. [PMID: 31256318 DOI: 10.1007/s10741-019-09820-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Anthracyclines are the cornerstone for many oncologic treatments, but their cardiotoxicity has been recognized for several decades. Female subjects, especially before puberty and adolescence, or after menopause, seem to be more at increased risk, with the prognostic impact of this sex issue being less consistent compared to other cardiovascular risk factors. Several studies imply that sex differences could depend on the lack of the protective effect of sex hormones against the anthracycline-initiated damage in cardiac cells, or on differential mitochondria-related oxidative gene expression. This is also reflected by the results obtained with different diagnostic methods, such as cardiovascular biomarkers and imaging techniques (echocardiography, magnetic resonance, and nuclear medicine) in the diagnosis and monitoring of cardiotoxicity, confirming that sex differences exist. The same is true about protective strategies from anthracycline cardiotoxicity. Indeed, first studied to withstand oxidative damage in response to ischemia/reperfusion (I/R) injury, cardioprotection has different outcomes in men and women. A number of studies assessed the differences in I/R response between male and female hearts, with oxidative stress and apoptosis being shared mechanisms between the I/R and anthracyclines heart damage. Sex hormones can modulate these mechanisms, thus confirming their importance in the pathophysiology in cardioprotection not only from the ischemia/reperfusion damage, but also from anthracyclines, fueling further cardio-oncologic research on the topic.
Collapse
Affiliation(s)
| | - Alessia Pepe
- Magnetic Resonance Imaging Unit, Fondazione G. Monasterio C.N.R.- Regione Toscana, Pisa, Italy
| | - Claudia Penna
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Alessia Gimelli
- Nuclear Medicine Unit, Fondazione G. Monasterio C.N.R.- Regione Toscana, Pisa, Italy
| | - Rosalinda Madonna
- Center of Aging Sciences and Translational Medicine - CESI-MeT, "G. d'Annunzio" University, Chieti, Italy
| | - Donato Mele
- Cardiology Unit, Emergency Department, University Hospital of Ferrara, Ferrara, Italy
| | - Ines Monte
- Department of General Surgery and Medical-Surgery Specialities- Cardiology, University of Catania, Catania, Italy
| | - Giuseppina Novo
- Department of Cardiology, University of Palermo, Palermo, Italy
| | - Cinzia Nugara
- Department of Cardiology, University of Palermo, Palermo, Italy
| | - Concetta Zito
- Department of Clinical and Experimental Medicine - Cardiology, University of Messina, Messina, Italy
| | - Javid J Moslehi
- Vanderbilt Ingram Cancer Center, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Rudolf A de Boer
- University Medical Center Groningen, Department of Cardiology, University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, the Netherlands
| | | | - Carlo Gabriele Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, Italy. .,Interdepartmental Center for Clinical and Translational Research (CIRCET), Federico II University, Naples, Italy.
| | - Giuseppe Mercuro
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| |
Collapse
|
13
|
Effects of doxorubicin on the heart: From molecular mechanisms to intervention strategies. Eur J Pharmacol 2019; 866:172818. [PMID: 31758940 DOI: 10.1016/j.ejphar.2019.172818] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 12/24/2022]
Abstract
Cancer remains a major public health problem worldwide and was responsible for 9.6 million deaths in 2018. Oncologic treatments such as doxorubicin (Dox) and trastuzumab (Trz) are chemotherapeutic drugs used to treat several types of cancer, including solid and non-solid malignancies. Although these drugs have a significant impact on the reduction in mortality of cancer patients, this treatment has an adverse effect on the cardiovascular system. The mechanisms associated with Dox-induced cardiotoxicity involve inflammation, oxidative stress, apoptosis, mitochondria impairment and dysregulation of autophagy. Unfortunately, Trz, an effective anti-cancer drug, can potentiate these adverse effects. Trz is a recombinant DNA-derived humanized monoclonal antibody against human epidermal growth factor receptor 2 (HER2). Despite its high anti-cancer efficacy, Trz also has a cardiotoxic effect. Unlike Dox, this adverse effect of Trz on the heart is mostly reversible. A strategy to prevent this undesirable effect is urgently needed. Currently, several pharmacological interventions have shown promising results that might effectively attenuate Dox- and Trz-induced cardiac dysfunction. In this review, reports from in vitro, in vivo and clinical studies pertinent to the underlying mechanisms involved in chemotherapy-induced cardiotoxicity, are comprehensively summarized and discussed. In addition, the potential pharmacological interventions to prevent these cardiotoxic effects are described.
Collapse
|
14
|
Hashimoto T, Kurokawa Y, Takahashi T, Saito T, Yamashita K, Tanaka K, Makino T, Yamasaki M, Motoori M, Kimura Y, Nakajima K, Mori M, Doki Y. What is the most useful body composition parameter for predicting toxicities of preoperative chemotherapy for gastric cancer? Surg Today 2019; 50:509-515. [PMID: 31712913 DOI: 10.1007/s00595-019-01915-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/26/2019] [Indexed: 12/17/2022]
Abstract
PURPOSE Preoperative chemotherapy is an effective treatment option for resectable gastric cancer, but it is associated with various adverse events (AEs). This study aimed to identify the body composition parameters that most accurately predicted the incidence of AEs in preoperative chemotherapy for gastric cancer. METHODS The present study included a total of 114 patients who received preoperative chemotherapy for resectable gastric cancer. We estimated various body composition parameters using computed tomography images obtained before preoperative chemotherapy. Their associations with the incidence of hematological (grade ≥ 3) and non-hematological (grade ≥ 2) AEs were analyzed by multivariate logistic regression analyses. RESULTS Seventy-two of the 114 (63.2%) patients experienced hematological AEs (grade ≥ 3), specifically neutropenia in 68 (59.6%), anemia in 5 (4.9%), and thrombocytopenia in 3 (2.6%). Meanwhile, 59 patients (51.8%) experienced non-hematological AEs (grade ≥ 2), namely hypoalbuminemia in 31 (27.2%), anorexia in 24 (21.1%), and febrile neutropenia in 17 (14.9%). Multivariate analyses revealed that a low psoas muscle index (PMI) was an independent risk factor for the incidence of both hematological and non-hematological AEs. CONCLUSIONS Patients with a low PMI experienced an increased incidence of hematological and non-hematological toxicities during preoperative chemotherapy for gastric cancer. Clinicians should be aware of these risks in this population.
Collapse
Affiliation(s)
- Tadayoshi Hashimoto
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yukinori Kurokawa
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Tsuyoshi Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuro Saito
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kotaro Yamashita
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Koji Tanaka
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tomoki Makino
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Makoto Yamasaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masaaki Motoori
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
- Department of Surgery, Osaka General Medical Center, Osaka, Japan
| | - Yutaka Kimura
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
- Department of Surgery, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Kiyokazu Nakajima
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masaki Mori
- Department of Surgery and Science, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2-E2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| |
Collapse
|
15
|
Zhang F, Lyon CJ, Walls RJ, Ning B, Fan J, Hu TY. Cathepsin B Dependent Cleavage Product of Serum Amyloid A1 Identifies Patients with Chemotherapy-Related Cardiotoxicity. ACS Pharmacol Transl Sci 2019; 2:333-341. [PMID: 32259067 DOI: 10.1021/acsptsci.9b00035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Indexed: 02/08/2023]
Abstract
Improvements in long-term cancer survival rates have resulted in an increase in the prevalence of chemotherapy-linked cardiac failure, but treatment-induced cardiac injuries may not be detected until long after therapy. Monitoring cardiac function is recommended; however, cardiovascular injury in cancer patients differs from those with primary cardiac dysfunction, which limits the utility of traditional cardiac biomarkers. Here we examined plasma levels of peptides produced by cathepsin B, which is released during chemotherapy-induced cardiac injury. We applied nanotrap fractionation to enrich plasma peptides from cancer patients treated with or without chemotherapy. Peptides associated with chemotherapy-induced cardiotoxicity, but not other cardiac injury, were identified by mass spectrometry, and their dependence on cathepsin B activity was determined using enzyme inhibition experiments. We found that a peptide (SAA-1525) derived from serum amyloid A1 was significantly increased in cardiotoxicity patients, and its production was inhibited when plasma samples were pretreated with cathepsin B specific inhibitors. Plasma SAA-1525 also correlated with other markers of cardiac injury. Analysis of plasma SAA-1525 levels may hold potential as a rapid and minimally invasive method to monitor subclinical injury, thereby allowing timely intervention to mitigate further cardiac damage and avoid more severe clinical presentation.
Collapse
Affiliation(s)
- Fangfang Zhang
- Department of Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China.,Virginia G. Piper Biodesign Center for Personalized Diagnostics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Christopher J Lyon
- Virginia G. Piper Biodesign Center for Personalized Diagnostics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Robert J Walls
- Virginia G. Piper Biodesign Center for Personalized Diagnostics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Bo Ning
- Center for Molecular Design and Biomimetics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Jia Fan
- Virginia G. Piper Biodesign Center for Personalized Diagnostics, The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, United States
| | - Tony Y Hu
- Department of Biochemistry and Molecular Biology, School of Medicine, Tulane University, New Orleans, Louisiana 70112, United States
| |
Collapse
|
16
|
Sheng JY, Sharma D, Jerome G, Santa-Maria CA. Obese Breast Cancer Patients and Survivors: Management Considerations. ONCOLOGY (WILLISTON PARK, N.Y.) 2018; 32:410-417. [PMID: 30153321 PMCID: PMC9337744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Excess body weight is a significant risk factor for many cancers, especially breast cancer. Patients with breast cancer or those with a history of the disease who are overweight or obese have an increased risk of therapy-related morbidity, recurrence, and breast cancer-related mortality. Obesity may also affect quality-of-life factors for survivors, including sexual dysfunction, neuropathy, cardiotoxicity, chronic fatigue, and lymphedema. Most cancer guidelines recommend that breast cancer survivors who are overweight or obese lose weight and that those with a normal body mass index (BMI) maintain a stable body weight. The cornerstone of interventions to treat or prevent obesity is lifestyle modification with diet and exercise; however, integrating these things into clinical practice is challenging. This article will present feasible weight loss interventions, and will discuss practical implications of ongoing chemotherapy and endocrine therapy with regard to weight gain, and the impact of obesity on therapy-related conditions during breast cancer survivorship.
Collapse
|