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LeVasseur N, Manna M, Jerzak KJ. An Overview of Long-Acting GnRH Agonists in Premenopausal Breast Cancer Patients: Survivorship Challenges and Management. Curr Oncol 2024; 31:4209-4224. [PMID: 39195297 DOI: 10.3390/curroncol31080314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/13/2024] [Accepted: 07/23/2024] [Indexed: 08/29/2024] Open
Abstract
Managing breast cancer in premenopausal women poses unique challenges due to its considerable effect on both morbidity and mortality. Goserelin, a gonadotropin-releasing hormone agonist, has emerged among the various modalities as a preferred option for ovarian function suppression, owing to its efficacy in reducing ovarian estrogen production in premenopausal women with hormone receptor-positive breast cancer. Recent studies have affirmed the efficacy and safety of long-acting (LA) goserelin 10.8 mg every 12 weeks, offering comparable outcomes to monthly injections. This flexibility enables personalized treatment approaches, potentially enhancing patient satisfaction. Off-label utilization of goserelin LA surged during the coronavirus disease pandemic, prompting initiatives to broaden its use for breast cancer treatment. Switching to goserelin LA can streamline treatment, boost adherence, and optimize resource utilization. With the recent approval of goserelin 10.8 mg LA by Health Canada on 6 May 2024, for use in breast cancer, Canada is the latest to join over 60 countries worldwide to expand the accepted indications for goserelin LA and ensure its availability to potentially enhance healthcare delivery, patient care, and breast cancer outcomes. Goserelin LA offers premenopausal patients a means to more effectively manage the constraints imposed by breast cancer treatment and its impact on survivorship.
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Affiliation(s)
- Nathalie LeVasseur
- BC Cancer Vancouver Centre, University of British Columbia, Vancouver, BC V5Z 4E6, Canada
| | - Mita Manna
- Department of Medicine and Department of Oncology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada
| | - Katarzyna J Jerzak
- Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, ON M4N 3M5, Canada
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2
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Amar ID, Franceschini G, Nero C, Pasqua I, Paris I, Orlandi A, Gori S, Fabi A, Garganese G, Scambia G, Villa P. Preventing Bone Loss in Breast Cancer Patients: Designing a Personalized Clinical Pathway in a Large-Volume Research Hospital. J Pers Med 2024; 14:371. [PMID: 38672998 PMCID: PMC11051440 DOI: 10.3390/jpm14040371] [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: 03/08/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND We assess the impact of bone health clinical management in breast cancer (BC) patients receiving adjuvant endocrine therapy and design a personalized clinical pathway to reduce bone loss in an Italian research hospital. METHODS The primary endpoint was to assess (through the process improvement organizational method) the clinical pathway that post-surgical BC patients prescribed with endocrine therapy undergo to prevent bone loss. The secondary endpoint was to design a personalized clinical pathway for a prompt implementation of guidelines, to assess and possibly prescribe antiresorptive therapy. RESULTS During the first year of the execution of the new Diagnostic Therapeutic Assistance Pathway, a 60% increase in Dual-Energy X-ray Absorptiometry evaluations within 30 days and a 39.5% increase in antiresorptive therapy prescription within 90 days (since the prescription of endocrine therapy) were shown, thus increasing patients' compliance. CONCLUSION Case managers and bone health specialists in this context can improve patients' adherence to therapies and bone health, helping physicians to expand their collaboration.
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Affiliation(s)
- Inbal Dona Amar
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
| | - Gianluca Franceschini
- Onco-Plastic Surgery Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Camilla Nero
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
- Scientific Directorate, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy;
| | - Ilaria Pasqua
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
| | - Ida Paris
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
| | - Armando Orlandi
- Medical Oncology Unit, Department of Abdominal and Endocrine Metabolic Medical and Surgical Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy;
| | - Stefania Gori
- Medical Oncology Unit, Department of Oncology, IRCCS Sacro Cuore “Don Calabria”, 37024 Negrar, Italy;
- Rete Oncologica Pazienti Italia (ROPI), 20121 Milan, Italy
- Associazione Italiana di Oncologia Medica (AIOM), 20133 Milan, Italy
| | - Alessandra Fabi
- Scientific Directorate, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy;
- Associazione Italiana di Oncologia Medica (AIOM), 20133 Milan, Italy
| | - Giorgia Garganese
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
| | - Giovanni Scambia
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
- Scientific Directorate, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy;
| | - Paola Villa
- Gynecologic Oncology Unit, Department of Woman, Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (C.N.); (I.P.); (I.P.); (G.G.); (G.S.); (P.V.)
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Hall KA, Filardo EJ. The G Protein-Coupled Estrogen Receptor (GPER): A Critical Therapeutic Target for Cancer. Cells 2023; 12:2460. [PMID: 37887304 PMCID: PMC10605794 DOI: 10.3390/cells12202460] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/29/2023] [Accepted: 10/04/2023] [Indexed: 10/28/2023] Open
Abstract
Estrogens have been implicated in the pathogenesis of various cancers, with increasing concern regarding the overall rising incidence of disease and exposure to environmental estrogens. Estrogens, both endogenous and environmental, manifest their actions through intracellular and plasma membrane receptors, named ERα, ERβ, and GPER. Collectively, they act to promote a broad transcriptional response that is mediated through multiple regulatory enhancers, including estrogen response elements (EREs), serum response elements (SREs), and cyclic AMP response elements (CREs). Yet, the design and rational assignment of antiestrogen therapy for breast cancer has strictly relied upon an endogenous estrogen-ER binary rubric that does not account for environmental estrogens or GPER. New endocrine therapies have focused on the development of drugs that degrade ER via ER complex destabilization or direct enzymatic ubiquitination. However, these new approaches do not broadly treat all cancer-involved receptors, including GPER. The latter is concerning since GPER is directly associated with tumor size, distant metastases, cancer stem cell activity, and endocrine resistance, indicating the importance of targeting this receptor to achieve a more complete therapeutic response. This review focuses on the critical importance and value of GPER-targeted therapeutics as part of a more holistic approach to the treatment of estrogen-driven malignancies.
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Appraising Adjuvant Endocrine Therapy in Hormone Receptor Positive HER2-Negative Breast Cancer—A Literature Review. Curr Oncol 2022; 29:4956-4969. [PMID: 35877254 PMCID: PMC9320044 DOI: 10.3390/curroncol29070394] [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: 05/03/2022] [Revised: 06/25/2022] [Accepted: 07/05/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Approximately 75% of breast cancer (BC) is associated with luminal differentiation expressing endocrine receptors (ER). For ER+ HER2− tumors, adjuvant endocrine therapy (ET) is the cornerstone treatment. Although relapse events steadily continue, the ET benefits translate to dramatically lengthen life expectancy with bearable side-effects. This review of ER+ HER2− female BC outlines suitable adjuvant treatment strategies to help guide clinical decision making around appropriate therapy. Methods: A literature search was conducted in Embase, Medline, and the Cochrane Libraries, using ER+ HER−, ET BC keywords. Results: In low-risk patients: five years of ET is the standard option. While Tamoxifen remains the preferred selection for premenopausal women, AI is the choice for postmenopausal patients. In the high-risk category: ET plus/minus OFS with two years of Abemaciclib is recommended. Although extended ET for a total of ten years is an alternative, the optimal AI duration is undetermined; nevertheless an additional two to three years beyond the initial five years may be sufficient. In this postmenopausal group, bisphosphonate is endorsed. Conclusions: Classifying the risk category assists in deciding the treatment route and its optimal duration. Tailoring the breadth of ET hinges on a wide array of factors to be appraised for each individualized case, including weighing its benefits and harms.
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Andriyanto DR, Prihantono, Syamsu SA, Kusuma MI, Hendarto J, Indra, Smaradania N, Sampepajung E, Mappiwali A, Faruk M. Comparison of outcomes in patients with luminal type breast cancer treated with a gonadotropin-releasing hormone analog or bilateral salpingo-oophorectomy: A cohort retrospective study. Ann Med Surg (Lond) 2022; 77:103614. [PMID: 35637977 PMCID: PMC9142691 DOI: 10.1016/j.amsu.2022.103614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/08/2022] [Accepted: 04/08/2022] [Indexed: 01/08/2023] Open
Abstract
Introduction Premenopausal patients with hormone receptor-positive breast cancer require ablation therapy via a pharmacological or surgical approach. Data comparing outcomes between treatment with gonadotropin-releasing hormone (GnRH) analogs and treatment with bilateral salpingo-oophorectomy (BSO) in Indonesia remains limited. Therefore, this study aimed to compare incidence of local recurrence and metastasis, and overall survival (OS) in patients with luminal type breast cancer treated using the two approaches. Methods This observational retrospective cohort study examined 100 premenopausal patients diagnosed with luminal type hormone receptor-positive breast cancer who registered at Dr. Wahidin Sudirohusodo Hospital and its networking hospitals in Makassar City from January to December 2017. Result Among the 100 study patients, 50 were given GnRH analogs and 50 underwent BSO. Incidence of local recurrence (P = 0.408) and metastasis (P = 0.419) did not significantly differ between the GnRH analog and BSO groups, although the incidence of local recurrence was higher in the GnRH analog group (68% vs. 58%) and incidence of metastasis was higher in the BSO group (24% vs 19%). The 5-year survival rate did not significantly differ between the GnRH analog and BSO groups. Conclusion Incidence of local recurrence and metastasis, and 5-year survival rate did not significantly differ between premenopausal breast cancer patients treated using a GnRH analog and those treated with BSO. Further large-scale studies to compare the efficacy and safety of both approaches are warranted.
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Affiliation(s)
- Dwi Ris Andriyanto
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Prihantono
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Salman Ardi Syamsu
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Muhammad Ihwan Kusuma
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Joko Hendarto
- Department of Public Health, Medical Faculty, Hasanuddin University, Makassar, Indonesia
| | - Indra
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Nilam Smaradania
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Elridho Sampepajung
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Asrul Mappiwali
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Muhammad Faruk
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
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Gu W. Healthy Long-Lived Human Beings—Working on Life Stages to Break the Limitation of Human Lifespans. BIOLOGY 2022; 11:biology11050656. [PMID: 35625384 PMCID: PMC9137948 DOI: 10.3390/biology11050656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/11/2022] [Accepted: 04/19/2022] [Indexed: 11/16/2022]
Abstract
The human lifespan has been increasing but will soon reach a plateau. A new direction based on the principal law of lifespan (PLOSP) may enable the human lifespan to be extremely healthy and long by the proper manipulation of the well-defined growing stages of the lifespan. The lifespan of creatures on earth from a single cell to animals can be elongated at different life stages including prenatal development, body growth, reproductivity, and aging. Each life stage has its own specific physiological and metabolic characteristics. Each life stage can be lengthened by either slowing its processes or continuously maintaining the activities of its function. Unfortunately, the current biomedical research on the extension of lifespans has mainly focused on the aging stage. Recognizing and clearly defining the periods of transition and the boundaries of life stages are essential for achieving the goal of long-lived healthy humans based on the PLOSP. The biomedical measures and pharmacological treatments for the extension of lifespans is life-stage-specific. The PLOSP can be tested with modified studies on longevity with a variety of technologies such as castration and ovariectomy. Sex differences in biological functions and the sequential order of the life stages requires different approaches for females and males.
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Affiliation(s)
- Weikuan Gu
- Department of Orthopedic Surgery and BME-Campbell Clinic, University of Tennessee Health Science Center, Memphis, TN 38163, USA; ; Tel.: +1-901-448-2259
- Research Service, Memphis VA Medical Center, 1030 Jefferson Avenue, Memphis, TN 38104, USA
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, 881 Madison Ave, Memphis, TN 38163, USA
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Colombage UN, Soh SE, Lin KY, White M, Vincent A, Fox J, Frawley HC. Occurrence and impact of pelvic floor dysfunction in women with and without breast cancer: a cross-sectional study. Braz J Phys Ther 2022; 26:100455. [PMID: 36283252 PMCID: PMC9593735 DOI: 10.1016/j.bjpt.2022.100455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND One of the sequalae of breast cancer treatments may be pelvic floor (PF) dysfunction such as urinary incontinence (UI), faecal incontinence (FI), and pelvic organ prolapse (POP). OBJECTIVE The aim of this study was to compare the occurrence and related distress and impact of PF dysfunction between women with and without breast cancer. METHODS Women with and without breast cancer participated in this cross-sectional study. The Pelvic Floor Distress Inventory and Pelvic Floor Impact Questionnaire were used to quantify the prevalence and related distress, and impact of PF dysfunction. Factors associated with PF outcomes were examined using logistic and linear regressions while controlling for known risk factors for PF dysfunction (age, body mass index, and parity). RESULTS 120 women with breast cancer, and 170 women without breast cancer responded. The occurrence of any type of UI was higher in women with breast cancer than women without breast cancer (percentage difference=17%; 95% CI: 7, 29). Women with breast cancer experienced higher impact of urinary symptoms (mean difference=18.2; 95% CI: 8.9, 27.7) compared to those without. Multivariable analysis indicated that having breast cancer (β 0.33; 95%CI: 0.08, 0.51) was the strongest predictor of greater impact of urinary symptoms. CONCLUSION Women with breast cancer reported a higher occurrence and impact of urinary symptoms than women without breast cancer. While further studies are required to confirm our findings, routine screening and offering treatment for urinary symptoms may be indicated for women with breast cancer.
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Affiliation(s)
- Udari N Colombage
- Department of Physical Therapy, Melbourne School of Health Sciences, Faculty of Medicine, Dentistry & Health Sciences, The University of Melbourne, Melbourne, Australia,School of Health, Federation University, Churchill, Australia,Department of Physical Therapy, Monash University, Melbourne, Australia,Corresponding author at: The University of Melbourne, Melbourne School of Health Sciences, 161 Barry St, Carlton VIC 3053, Australia.
| | - Sze-Ee Soh
- Department of Physical Therapy, Monash University, Melbourne, Australia,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Kuan-Yin Lin
- Department of Physical Therapy, National Cheng Kung University, Tainan, Taiwan,Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Michelle White
- Breast Cancer Clinic, Moorabbin Hospital, Monash Health, Bentleigh East, Australia
| | - Amanda Vincent
- Menopause Clinic, Department of Endocrinology, Monash Health, Clayton, Australia,Monash Centre for Health Research and Implementation (MCHRI), School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Jane Fox
- Breast Cancer Clinic, Moorabbin Hospital, Monash Health, Bentleigh East, Australia,Department of Surgery, School of Clinical Sciences at Monash Health, Monash University, Melbourne, Australia
| | - Helena C Frawley
- Department of Physical Therapy, Melbourne School of Health Sciences, Faculty of Medicine, Dentistry & Health Sciences, The University of Melbourne, Melbourne, Australia,Allied Health Research, Royal Women's Hospital, Melbourne, Australia,Allied Health Research, Mercy Hospital for Women, Melbourne, Australia
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Jiang J, Xu J, Cai L, Man L, Niu L, Hu J, Sun T, Zheng X. Major depressive symptoms in breast cancer patients with ovarian function suppression: a cross-sectional study comparing ovarian ablation and gonadotropin-releasing hormone agonists. BMC Psychiatry 2021; 21:624. [PMID: 34895183 PMCID: PMC8666024 DOI: 10.1186/s12888-021-03611-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 11/22/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Ovarian function suppression (OFS) is indicated in premenopausal women with early or metastasis breast cancer, which may be achieved with similar effect by gonadotropin-releasing hormone agonists (GnRHa) or ovarian ablation (OA). We examined whether there were differences in major depressive symptoms outcomes and its associated factors between gonadotropin-releasing hormone agonists (GnRHa) and ovarian ablation (OA) in premenopausal breast cancer patients. METHODS Premenopausal breast cancer patients from seven hospitals who received OFS participated in the study between June 2019 and June 2020. The correlated variable was the type of ovarian suppression, categorized as either OA (n = 174) or GnRHa (n = 389). Major depressive symptoms was evaluated using the Patient Health Questionnaire (PHQ-9), and the Female Sexual Function Index questionnaire was used to assess sexual function. RESULTS A total of 563 patients completed the surveys. The mean PHQ-9 sum score was slightly lower in the GnRHa cohort than in the OA cohort (11.4 ± 5.7 vs. 12.8 ± 5.8, P = 0.079). There were significantly fewer patients with major depressive symptoms (PHQ-9 ≥ 15) in the GnRHa cohort (31.1% vs. 40.2%, Exp (B)=1.805, P=0.004). Further, breast-conserving surgery and sexual dysfunction were negatively correlated with major depressive symptoms [mastectomy vs. breast-conserving: Exp (B) = 0.461, P <0.001;[sexual dysfunction vs. normal: Exp (B) = 0.512, P = 0.001]. CONCLUSIONS This is the first study to demonstrate that GnRHa results in more favorable depressive symptoms outcomes than OA. Moreover, most patients preferred alternatives to their OFS treatment. These findings can contribute to improving and alleviating the adverse effects of OFS.
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Affiliation(s)
- Junhan Jiang
- grid.412636.4Department of Breast Surgery, First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001 Liaoning China
| | - Junnan Xu
- grid.412449.e0000 0000 9678 1884Department of Breast Medicine, Cancer Hospital of China Medical University, Liaoning Cancer No.44 Xiaoheyan Road, Dadong District, Shenyang, Liaoning 110042 People’s Republic of China
| | - Li Cai
- grid.412651.50000 0004 1808 3502The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, 150040 China
| | - Li Man
- Department of Medical Oncology, Anshan Cancer Hospital, Anshan, 114000 China
| | - Limin Niu
- grid.414008.90000 0004 1799 4638Breast Cancer Center, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, 450003 China
| | - Juan Hu
- grid.410622.30000 0004 1758 2377Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital, Changsha, 410000 China
| | - Tao Sun
- Department of Breast Medicine, Cancer Hospital of China Medical University, Liaoning Cancer No.44 Xiaoheyan Road, Dadong District, Shenyang, Liaoning, 110042, People's Republic of China.
| | - Xinyu Zheng
- Department of Breast Surgery, First Affiliated Hospital of China Medical University, No. 155 Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China.
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Ebrahim N, Al Saihati HA, Shaman A, Dessouky AA, Farid AS, Hussien NI, Mostafa O, Seleem Y, Sabry D, Saad AS, Emam HT, Hassouna A, Badr OAM, Saffaf BA, Forsyth NR, Salim RF. Bone marrow-derived mesenchymal stem cells combined with gonadotropin therapy restore postnatal oogenesis of chemo-ablated ovaries in rats via enhancing very small embryonic-like stem cells. Stem Cell Res Ther 2021; 12:517. [PMID: 34579781 PMCID: PMC8477571 DOI: 10.1186/s13287-021-02415-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/25/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Very small embryonic-like stem cells (VSELs) are a rare population within the ovarian epithelial surface. They contribute to postnatal oogenesis as they have the ability to generate immature oocytes and resist the chemotherapy. These cells express markers of pluripotent embryonic and primordial germ cells. OBJECTIVE We aimed to explore the capability of VSELs in restoring the postnatal oogenesis of chemo-ablated rat ovaries treated with bone marrow-derived mesenchymal stem cells (BM-MSCs) combined with pregnant mare serum gonadotropin (PMSG). METHODS Female albino rats were randomly assigned across five groups: I (control), II (chemo-ablation), III (chemo-ablation + PMSG), IV (chemo-ablation + MSCs), and V (chemo-ablation + PMSG + MSCs). Postnatal oogenesis was assessed through measurement of OCT4, OCT4A, Scp3, Mvh, Nobox, Dazl4, Nanog, Sca-1, FSHr, STRA8, Bax, miR143, and miR376a transcript levels using qRT-PCR. Expression of selected key proteins were established as further confirmation of transcript expression changes. Histopathological examination and ovarian hormonal assessment were determined. RESULTS Group V displayed significant upregulation of all measured genes when compared with group II, III or IV. Protein expression confirmed the changes in transcript levels as group V displayed the highest average density in all targeted proteins. These results were confirmed histologically by the presence of cuboidal germinal epithelium, numerous primordial, unilaminar, and mature Graafian follicles in group V. CONCLUSION VSELs can restore the postnatal oogenesis in chemo-ablated ovaries treated by BM-MSCs combined with PMSG.
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Affiliation(s)
- Nesrine Ebrahim
- Department of Histology and Cell Biology, Faculty of Medicine, Benha University, Benha, Egypt
- Stem Cell Unit, Faculty of Medicine, Benha University, Benha, Egypt
| | - Hajir A Al Saihati
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Albatin, Al-Batin, Saudi Arabia
| | - Amani Shaman
- Obstetrics and Gynecology Medical College, Tabuk University, Tabuk, Saudi Arabia
| | - Arigue A Dessouky
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ayman Samir Farid
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Noha I Hussien
- Department of Medical Physiology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Ola Mostafa
- Department of Histology and Cell Biology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Yasmin Seleem
- Department of Clinical Pharmacology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Dina Sabry
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Badr University, Cairo, Egypt
| | - Ahmed S Saad
- Department of Obstetrics & Gynecology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Hanan Tawfeek Emam
- Department of Clinical Pharmacology, Faculty of Medicine, Benha University, Benha, Egypt
| | - Amira Hassouna
- School of Interprofessional Health Studies, Faculty of Health and Environmental Sciences, AUT University, Auckland, New Zealand
| | - Omnia A M Badr
- Department of Genetics and Genetic Engineering, Faculty of Agriculture, Benha University, Benha, Egypt
| | - Bayan A Saffaf
- Department of pharmacology, Faculty of Pharmacy, Future University, Cairo, Egypt
| | - Nicholas R Forsyth
- Guy Hilton Research Laboratories, School of Pharmacy and Bioengineering, Faculty of Medicine and Health Sciences, Keele University, Keele, UK
| | - Rabab F Salim
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Benha University, Benha, Qalyubia, 13512, Egypt.
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Awareness of the Causes Leading to Surgical Ablation of Ovarian Function in Premenopausal Breast Cancer-A Single-Center Analysis. ACTA ACUST UNITED AC 2021; 57:medicina57040385. [PMID: 33923478 PMCID: PMC8073028 DOI: 10.3390/medicina57040385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 11/25/2022]
Abstract
Background and Objectives: Ovarian surgical ablation (OSA) in estrogen receptor-positive (ER+) breast cancer is usually performed to halt ovarian function in premenopausal patients. Since alternative pharmacological therapy exists and few studies have investigated why surgery is still performed, we aimed to analyze the reasons for the use of OSA despite the remaining controversy. Materials and Methods: Premenopausal ER+ breast cancer patients treated at a tertiary center (2005–2011) were selected, and patients with germline mutations were excluded. Results: Seventy-nine patients met the inclusion criteria. Globally, the main reasons for OSA included: continued menstruation despite hormone therapy with or without ovarian medical ablation (OMA) (34.2%), patient informed choice (31.6%), disease progression (16.5%), gynecological disease requiring surgery (13.9%), and tamoxifen intolerance/contraindication (3.8%). In women aged ≥45 years, patient choice was significantly more frequently the reason for OSA (47.4% versus 17.1% (p = 0.004)). For those aged <45 years, salvation attempts were significantly more frequent as compared to older women (26.8% versus 5.3% (p = 0.01)). In 77.8% of women undergoing OSA with menstrual cycle maintenance, surgery was performed 1–5 years after diagnosis, while surgery was performed earlier (0–3 months after diagnosis) in patients undergoing OSA as an informed choice (56.0%), as a salvation attempt (53.8%), or due to gynecological disease (63.6%). The leading reason for OSA in women previously undergoing OMA was continued menstruation (60.0%). Conclusions: This study suggests a possible failure of pharmacological ovarian suppression and reinforces the need for shared decision-making with patients when discussing treatment strategies, although validation by further studies is warranted due to our limited sample size.
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Kauffman RP, Young C, Castracane VD. Perils of prolonged ovarian suppression and hypoestrogenism in the treatment of breast cancer: Is the risk of treatment worse than the risk of recurrence? Mol Cell Endocrinol 2021; 525:111181. [PMID: 33529690 DOI: 10.1016/j.mce.2021.111181] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/04/2021] [Accepted: 01/21/2021] [Indexed: 01/18/2023]
Abstract
Premenopausal breast cancer is usually estrogen receptor positive, and hence, prolonged ovarian suppression by medical or surgical means to prevent recurrence has become standard of management to improve disease-free survival. Ten-year adjuvant tamoxifen therapy is associated with 3.5% fewer recurrences compared to five years. The SOFT trial demonstrated small but statistically significant incremental improvements in long-term disease-free survival by the addition of gonadotropin-releasing hormone analog treatment (triptorelin) to an aromatase inhibitor (exemestane). Profound hypoestrogenism in the premenopausal age group may not be well tolerated due to a host of bothersome side effects (primarily vasomotor symptoms, musculoskeletal complaints, genitourinary syndrome of menopause, and mood disorders). Prolonged hypoestrogenism in younger women is associated with premature development of cardiovascular disease, bone loss, cognitive decline, and all-cause mortality. This paper explores multi-system consequences of prolonged hypoestrogenism in premenopausal women derived from studies of women with and without breast cancer. Pretreatment counseling in estrogen receptor positive breast cancer should emphasize the benefit of prolonged estrogen suppression on breast cancer recurrence and established risks of lifelong hypoestrogenism on quality of life and all-cause mortality. Future genomic research may help identify the best candidates for extended ovarian suppression to avoid treating many women when only a minority benefit.
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Affiliation(s)
- Robert P Kauffman
- Department of Obstetrics and Gynecology, Texas Tech University Health Sciences Center, School of Medicine, 1400 S. Coulter Rd, Amarillo, TX, 79106, USA.
| | - Christina Young
- Department of Obstetrics and Gynecology, Texas Tech University Health Sciences Center, School of Medicine, 1400 S. Coulter Rd, Amarillo, TX, 79106, USA
| | - V Daniel Castracane
- Department of Obstetrics and Gynecology, Texas Tech University Health Sciences Center, School of Medicine, 1400 S. Coulter Rd, Amarillo, TX, 79106, USA
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12
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Abstract
Despite the decline in death rate from breast cancer and recent advances in targeted therapies and combinations for the treatment of metastatic disease, metastatic breast cancer remains the second leading cause of cancer-associated death in U.S. women. The invasion-metastasis cascade involves a number of steps and multitudes of proteins and signaling molecules. The pathways include invasion, intravasation, circulation, extravasation, infiltration into a distant site to form a metastatic niche, and micrometastasis formation in a new environment. Each of these processes is regulated by changes in gene expression. Noncoding RNAs including microRNAs (miRNAs) are involved in breast cancer tumorigenesis, progression, and metastasis by post-transcriptional regulation of target gene expression. miRNAs can stimulate oncogenesis (oncomiRs), inhibit tumor growth (tumor suppressors or miRsupps), and regulate gene targets in metastasis (metastamiRs). The goal of this review is to summarize some of the key miRNAs that regulate genes and pathways involved in metastatic breast cancer with an emphasis on estrogen receptor α (ERα+) breast cancer. We reviewed the identity, regulation, human breast tumor expression, and reported prognostic significance of miRNAs that have been documented to directly target key genes in pathways, including epithelial-to-mesenchymal transition (EMT) contributing to the metastatic cascade. We critically evaluated the evidence for metastamiRs and their targets and miRNA regulation of metastasis suppressor genes in breast cancer progression and metastasis. It is clear that our understanding of miRNA regulation of targets in metastasis is incomplete.
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Affiliation(s)
- Belinda J Petri
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40292, USA
| | - Carolyn M Klinge
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, 40292, USA.
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13
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Rouhimoghadam M, Lu AS, Salem AK, Filardo EJ. Therapeutic Perspectives on the Modulation of G-Protein Coupled Estrogen Receptor, GPER, Function. Front Endocrinol (Lausanne) 2020; 11:591217. [PMID: 33329395 PMCID: PMC7719807 DOI: 10.3389/fendo.2020.591217] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/19/2020] [Indexed: 12/21/2022] Open
Abstract
Estrogens exert their physiological and pathophysiological effects via cellular receptors, named ERα, ERβ, and G-protein coupled estrogen receptor (GPER). Estrogen-regulated physiology is tightly controlled by factors that regulate estrogen bioavailability and receptor sensitivity, while disruption of these control mechanisms can result in loss of reproductive function, cancer, cardiovascular and neurodegenerative disease, obesity, insulin resistance, endometriosis, and systemic lupus erythematosus. Restoration of estrogen physiology by modulating estrogen bioavailability or receptor activity is an effective approach for treating these pathological conditions. Therapeutic interventions that block estrogen action are employed effectively for the treatment of breast and prostate cancer as well as for precocious puberty and anovulatory infertility. Theoretically, treatments that block estrogen biosynthesis should prevent estrogen action at ERs and GPER, although drug resistance and ligand-independent receptor activation may still occur. In addition, blockade of estrogen biosynthesis does not prevent activation of estrogen receptors by naturally occurring or man-made exogenous estrogens. A more complicated scenario is provided by anti-estrogen drugs that antagonize ERs since these drugs function as GPER agonists. Based upon its association with metabolic dysregulation and advanced cancer, GPER represents a therapeutic target with promise for the treatment of several critical health concerns facing Western society. Selective ligands that specifically target GPER have been developed and may soon serve as pharmacological agents for treating human disease. Here, we review current forms of estrogen therapy and the implications that GPER holds for these therapies. We also discuss existing GPER targeted drugs, additional approaches towards developing GPER-targeted therapies and how these therapies may complement existing modalities of estrogen-targeted therapy.
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Affiliation(s)
- Milad Rouhimoghadam
- Department of Surgery, University of Iowa, Carver College of Medicine, Iowa City, IA, United States
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, United States
| | - Anh S. Lu
- College of Pharmacy, University of Iowa, Iowa City, IA, United States
| | - Aliasger K. Salem
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, United States
- College of Pharmacy, University of Iowa, Iowa City, IA, United States
| | - Edward J. Filardo
- Department of Surgery, University of Iowa, Carver College of Medicine, Iowa City, IA, United States
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, United States
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14
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Ramchand SK, Cheung YM, Yeo B, Grossmann M. The effects of adjuvant endocrine therapy on bone health in women with breast cancer. J Endocrinol 2019; 241:R111-R124. [PMID: 30991355 DOI: 10.1530/joe-19-0077] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 04/15/2019] [Indexed: 01/01/2023]
Abstract
In women with oestrogen receptor (ER)-positive early breast cancer, oestradiol is important for breast cancer development and progression. Endocrine therapy prevents the deleterious effects of oestradiol in breast tissue by systemically depleting oestradiol concentration (aromatase inhibitors) or preventing its local action in breast tissue (selective oestrogen receptor modulators i.e. tamoxifen), thereby improving oncological outcomes. Use of aromatase inhibitors in postmenopausal women and ovarian function suppression with either tamoxifen or aromatase inhibition in premenopausal women, consequent to systemic oestradiol depletion, exerts detrimental effects on skeletal health. The oestradiol-deficient state causes increased bone remodelling and a negative bone balance. This results in bone loss, microstructural deterioration and bone fragility predisposing to fractures. Similar effects are also seen with tamoxifen in premenopausal women. In contrast, use of tamoxifen in postmenopausal women appears to exert protective effects on bone but studies on fracture risk are inconclusive. The longevity of women with ER-positive breast cancer treated with adjuvant endocrine therapy emphasises the need to mitigate the adverse skeletal effects of these therapies in order to maximise benefit. In general, fractures are associated with increased morbidity, mortality and are a high socioeconomic burden. Whilst the efficacy of antiresorptive therapy in preventing bone mineral density loss in postmenopausal women has been established, further clinical trial evidence is required to provide guidance regarding fracture risk reduction, when to initiate and stop treatment, choice of agent and optimal management of bone health in premenopausal women receiving endocrine therapy. In addition, potential oncological benefits of antiresorptive therapies will also need to be considered.
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Affiliation(s)
- Sabashini K Ramchand
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
| | - Yee-Ming Cheung
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
| | - Belinda Yeo
- Department of Oncology, Austin Health, Heidelberg, Victoria, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
| | - Mathis Grossmann
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Heidelberg, Victoria, Australia
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15
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Heudobler D, Rechenmacher M, Lüke F, Vogelhuber M, Klobuch S, Thomas S, Pukrop T, Hackl C, Herr W, Ghibelli L, Gerner C, Reichle A. Clinical Efficacy of a Novel Therapeutic Principle, Anakoinosis. Front Pharmacol 2018; 9:1357. [PMID: 30546308 PMCID: PMC6279883 DOI: 10.3389/fphar.2018.01357] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 11/05/2018] [Indexed: 12/18/2022] Open
Abstract
Classic tumor therapy, consisting of cytotoxic agents and/or targeted therapy, has not overcome therapeutic limitations like poor risk genetic parameters, genetic heterogeneity at different metastatic sites or the problem of undruggable targets. Here we summarize data and trials principally following a completely different treatment concept tackling systems biologic processes: the principle of communicative reprogramming of tumor tissues, i.e., anakoinosis (ancient greek for communication), aims at establishing novel communicative behavior of tumor tissue, the hosting organ and organism via re-modeling gene expression, thus recovering differentiation, and apoptosis competence leading to cancer control - in contrast to an immediate, "poisoning" with maximal tolerable doses of targeted or cytotoxic therapies. Therefore, we introduce the term "Master modulators" for drugs or drug combinations promoting evolutionary processes or regulating homeostatic pathways. These "master modulators" comprise a broad diversity of drugs, characterized by the capacity for reprogramming tumor tissues, i.e., transcriptional modulators, metronomic low-dose chemotherapy, epigenetically modifying agents, protein binding pro-anakoinotic drugs, such as COX-2 inhibitors, IMiDs etc., or for example differentiation inducing therapies. Data on 97 anakoinosis inducing schedules indicate a favorable toxicity profile: The combined administration of master modulators, frequently (with poor or no monoactivity) may even induce continuous complete remission in refractory metastatic neoplasia, irrespectively of the tumor type. That means recessive components of the tumor, successively developing during tumor ontogenesis, are accessible by regulatory active drug combinations in a therapeutically meaningful way. Drug selection is now dependent on situative systems characteristics, to less extent histology dependent. To sum up, anakoinosis represents a new substantive therapy principle besides novel targeted therapies.
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Affiliation(s)
- Daniel Heudobler
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Michael Rechenmacher
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Florian Lüke
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Martin Vogelhuber
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Sebastian Klobuch
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Simone Thomas
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Tobias Pukrop
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Christina Hackl
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Lina Ghibelli
- Department Biology, Universita' di Roma Tor Vergata, Rome, Italy
| | - Christopher Gerner
- Faculty Chemistry, Institut for Analytical Chemistry, University Vienna, Vienna, Austria
| | - Albrecht Reichle
- Department of Internal Medicine III, Hematology and Oncology, University Hospital Regensburg, Regensburg, Germany
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16
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Meisel JL, Venur VA, Gnant M, Carey L. Evolution of Targeted Therapy in Breast Cancer: Where Precision Medicine Began. Am Soc Clin Oncol Educ Book 2018; 38:78-86. [PMID: 30231395 DOI: 10.1200/edbk_201037] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
As we consider best practices and approaches to targeted therapy in the clinic and in terms of trial design, breast cancer can serve as a useful model for other disease types, because estrogen receptor-positive and HER2-positive breast cancer have been known entities for several decades. In this review, we provide a history of the development of anti-estrogen therapy and anti-HER2-directed therapy and we discuss our growing understanding of resistance to targeted therapy as seen through this lens. We highlight some of the recent breakthroughs that have enhanced our understanding of resistance to endocrine and anti-HER2 therapy, and we discuss some of the ongoing research in the field.
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Affiliation(s)
- Jane Lowe Meisel
- From the Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA; University of Iowa, Iowa City, IA; Medical University of Vienna and Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria; UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - Vyshak Alva Venur
- From the Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA; University of Iowa, Iowa City, IA; Medical University of Vienna and Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria; UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - Michael Gnant
- From the Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA; University of Iowa, Iowa City, IA; Medical University of Vienna and Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria; UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - Lisa Carey
- From the Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA; University of Iowa, Iowa City, IA; Medical University of Vienna and Austrian Breast and Colorectal Cancer Study Group, Vienna, Austria; UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC
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17
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Rachner TD, Coleman R, Hadji P, Hofbauer LC. Bone health during endocrine therapy for cancer. Lancet Diabetes Endocrinol 2018; 6:901-910. [PMID: 29572126 DOI: 10.1016/s2213-8587(18)30047-0] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/27/2017] [Accepted: 01/09/2018] [Indexed: 12/15/2022]
Abstract
Preservation of bone health remains a long-term clinical challenge in patients with breast and prostate cancer. Osteoporosis, defined by a loss of bone mass and microarchitecture, often results in fragility fractures that are typically associated with a high socioeconomic burden. Endocrine therapy, a mainstay treatment in the management of patients with hormone-sensitive breast and prostate cancer in the adjuvant setting, commonly exerts adverse effects on the musculoskeletal system and is associated with an increased risk of osteoporosis and fractures. Adjuvant use of gonadotropin-releasing hormone analogues, which can also be used in metastatic disease, in combination with tamoxifen in premenopausal women, and aromatase inhibitors in postmenopausal women with hormone-sensitive breast cancer, causes rapid bone loss and fragility fractures. By contrast, selective oestrogen receptor modulators, such as tamoxifen, have bone-protective effects in postmenopausal women. In men with castration-sensitive prostate cancer, androgen deprivation is achieved with drugs that lower gonadotropin levels, and these drugs can be combined with androgen receptor antagonists. These therapies induce a high bone turnover with rapid bone loss that is reminiscent of the changes occurring in early menopause and result in an increased risk of fracture. In this Review, we describe how adjuvant endocrine therapies of breast and prostate cancer impair bone health and outline evidence from randomised controlled trials of strategies to reduce risk of fracture.
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Affiliation(s)
- Tilman D Rachner
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, and Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany; German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Robert Coleman
- Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - Peyman Hadji
- Department of Bone Oncology, Krankenhaus Nordwest, Frankfurt and Philipps-University of Marburg, Marburg, Germany
| | - Lorenz C Hofbauer
- Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, and Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany; German Cancer Consortium (DKTK), partner site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
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18
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Frampton JE. Triptorelin: A Review of its Use as an Adjuvant Anticancer Therapy in Early Breast Cancer. Drugs 2018; 77:2037-2048. [PMID: 29177573 DOI: 10.1007/s40265-017-0849-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A 1-month formulation of the gonadotrophin-releasing hormone agonist (GnRHa) triptorelin (Decapeptyl®) has been approved in the EU as an adjuvant treatment in combination with tamoxifen or an aromatase inhibitor (AI), of endocrine-responsive, early-stage breast cancer in women at high risk of recurrence who are confirmed as premenopausal after completion of chemotherapy. This indication reflects the results of the 5-year SOFT and TEXT studies, especially SOFT, in which ovarian function suppression (OFS; mainly achieved with triptorelin) added to tamoxifen provided a significant benefit in the overall study population of premenopausal patients only after adjusting for prognostic factors. It emerged that adding OFS to tamoxifen produced more pronounced benefits in terms of disease control and, furthermore, increased overall survival in the cohort of higher-risk patients who had previously received chemotherapy. Also, compared with tamoxifen alone, the combination of OFS plus exemestane produced more pronounced benefits in terms of disease control than OFS plus tamoxifen. OFS induces premature menopause; when combined with either tamoxifen or exemestane, it increased the endocrine symptom burden. Nonetheless, the two combinations had distinct tolerability profiles (e.g. vasomotor symptoms and thromboembolic events were more frequent with OFS plus tamoxifen, whereas musculoskeletal symptoms, decreased libido, osteoporosis and fractures were more frequent with OFS plus exemestane). Thus, the combinations of OFS (with triptorelin) plus either tamoxifen or an AI are valid options for the adjuvant treatment of endocrine-responsive, early-stage breast cancer in women at sufficiently high risk of relapse to warrant receiving chemotherapy and who remain premenopausal thereafter. Individualized weighing of the potential benefits and adverse effects of treatment is required.
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Affiliation(s)
- James E Frampton
- Springer, Private Bag 65901, Mairangi Bay, Auckland 0754, New Zealand.
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19
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Chan CWH, Law BMH, So WKW, Chow KM, Waye MMY. Novel Strategies on Personalized Medicine for Breast Cancer Treatment: An Update. Int J Mol Sci 2017; 18:ijms18112423. [PMID: 29140300 PMCID: PMC5713391 DOI: 10.3390/ijms18112423] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/10/2017] [Accepted: 11/13/2017] [Indexed: 12/22/2022] Open
Abstract
Breast cancer is the most common cancer type among women worldwide. With breast cancer patients and survivors being reported to experience a repertoire of symptoms that are detrimental to their quality of life, the development of breast cancer treatment strategies that are effective with minimal side effects is therefore required. Personalized medicine, the treatment process that is tailored to the individual needs of each patient, is recently gaining increasing attention for its prospect in the development of effective cancer treatment regimens. Indeed, recent studies have identified a number of genes and molecules that may be used as biomarkers for predicting drug response and severity of common cancer-associated symptoms. These would provide useful clues not only for the determination of the optimal drug choice/dosage to be used in personalized treatment, but also for the identification of gene or molecular targets for the development of novel symptom management strategies, which ultimately would lead to the development of more personalized therapies for effective cancer treatment. In this article, recent studies that would provide potential new options for personalized therapies for breast cancer patients and survivors are reviewed. We suggest novel strategies, including the optimization of drug choice/dosage and the identification of genetic changes that are associated with cancer symptom occurrence and severity, which may help in enhancing the effectiveness and acceptability of the currently available cancer therapies.
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Affiliation(s)
- Carmen W H Chan
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, The New Territories, Hong Kong, China.
| | - Bernard M H Law
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, The New Territories, Hong Kong, China.
| | - Winnie K W So
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, The New Territories, Hong Kong, China.
| | - Ka Ming Chow
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, The New Territories, Hong Kong, China.
| | - Mary M Y Waye
- The Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, The New Territories, Hong Kong, China.
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20
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Abstract
Women carrying germline mutations in BRCA1 or BRCA2 have significantly increased lifetime risks of breast and tubo-ovarian cancer. To manage the breast cancer risk women may elect to have breast screening by MRI/mammogram from age 30, to take risk-reducing medication, or to have a prophylactic bilateral mastectomy. To manage the tubo-ovarian cancer risk, the only effective strategy is to have a bilateral salpingo-oophorectomy, recommended by age 40 (BRCA1) or 'around' age 40 (BRCA2). Early studies suggested that uptake of these cancer risk-reducing strategies was low. More recent studies have revealed higher rates of uptake, however it is unclear whether uptake is genuinely improving or whether the higher uptake rates reflect changes in the populations studied. In this study we surveyed 193 BRCA1/2 mutation carriers in the state of Tasmania to determine the uptake of cancer risk-reducing strategies and what factors might influence women's decisions in relation to both gynaecological and breast surgery. We observed that uptake of risk management strategies varied depending on the strength of the recommendation in the national guidelines. Uptake rates were > 90% for strategies which are strongly recommended, such as breast screening by MRI/mammogram and bilateral salpingo-oophorectomy, and were unaffected by demographic factors such as socio-economic disadvantage and educational achievement. Uptake rates were much lower for strategies which are presented in the guidelines as options for consideration and where patient choice and shared decision making are encouraged, such as prophylactic mastectomy (29%) and chemoprevention (1%) and in the case of prophylactic mastectomy, were influenced by both socio-economic advantage and educational achievement.
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