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Genetic Screens in Isogenic Mammalian Cell Lines Without Single Cell Cloning
ARTICLE https://doi.org/10.1038/s41467-020-14620-6 OPEN Genetic screens in isogenic mammalian cell lines without single cell cloning Peter C. DeWeirdt1,2, Annabel K. Sangree1,2, Ruth E. Hanna1,2, Kendall R. Sanson1,2, Mudra Hegde 1, Christine Strand 1, Nicole S. Persky1 & John G. Doench 1* Isogenic pairs of cell lines, which differ by a single genetic modification, are powerful tools for understanding gene function. Generating such pairs of mammalian cells, however, is labor- 1234567890():,; intensive, time-consuming, and, in some cell types, essentially impossible. Here, we present an approach to create isogenic pairs of cells that avoids single cell cloning, and screen these pairs with genome-wide CRISPR-Cas9 libraries to generate genetic interaction maps. We query the anti-apoptotic genes BCL2L1 and MCL1, and the DNA damage repair gene PARP1, identifying both expected and uncharacterized buffering and synthetic lethal interactions. Additionally, we compare acute CRISPR-based knockout, single cell clones, and small- molecule inhibition. We observe that, while the approaches provide largely overlapping information, differences emerge, highlighting an important consideration when employing genetic screens to identify and characterize potential drug targets. We anticipate that this methodology will be broadly useful to comprehensively study gene function across many contexts. 1 Genetic Perturbation Platform, Broad Institute of MIT and Harvard, 75 Ames Street, Cambridge, MA 02142, USA. 2These authors contributed equally: Peter C. DeWeirdt, -
Idamycin PFS® Idarubicin Hydrochloride Injection
Idamycin PFS® idarubicin hydrochloride injection Rx only FOR INTRAVENOUS USE ONLY WARNINGS 1. IDAMYCIN PFS Injection should be given slowly into a freely flowing intravenous infusion. It must never be given intramuscularly or subcutaneously. Severe local tissue necrosis can occur if there is extravasation during administration. 2. As is the case with other anthracyclines the use of IDAMYCIN PFS can cause myocardial toxicity leading to congestive heart failure. Cardiac toxicity is more common in patients who have received prior anthracyclines or who have pre- existing cardiac disease. 3. As is usual with antileukemic agents, severe myelosuppression occurs when IDAMYCIN PFS is used at effective therapeutic doses. 4. It is recommended that IDAMYCIN PFS be administered only under the supervision of a physician who is experienced in leukemia chemotherapy and in facilities with laboratory and supportive resources adequate to monitor drug tolerance and protect and maintain a patient compromised by drug toxicity. The physician and institution must be capable of responding rapidly and completely to severe hemorrhagic conditions and/or overwhelming infection. 5. Dosage should be reduced in patients with impaired hepatic or renal function. (See DOSAGE AND ADMINISTRATION.) DESCRIPTION IDAMYCIN PFS Injection contains idarubicin hydrochloride and is a sterile, semi- synthetic, preservative-free solution (PFS) antineoplastic anthracycline for intravenous use. Chemically, idarubicin hydrochloride is 5, 12-Naphthacenedione, 9-acetyl-7-[(3- amino-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl)oxy]-7,8,9,10-tetrahydro-6,9,11- trihydroxyhydrochloride, (7S-cis). The structural formula is as follows: C26 H27 NO9 .HCL M.W. 533.96 1 Reference ID: 3668307 IDAMYCIN PFS is a sterile, red-orange, isotonic parenteral preservative-free solution, available in 5 mL (5 mg), 10 mL (10 mg) and 20 mL (20 mg) single-use-only vials. -
The Role of PARP1 in Monocyte and Macrophage
cells Review The Role of PARP1 in Monocyte and Macrophage Commitment and Specification: Future Perspectives and Limitations for the Treatment of Monocyte and Macrophage Relevant Diseases with PARP Inhibitors Maciej Sobczak 1, Marharyta Zyma 2 and Agnieszka Robaszkiewicz 1,* 1 Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland; [email protected] 2 Department of Immunopathology, Medical University of Lodz, 7/9 Zeligowskiego, Bldg 2, Rm177, 90-752 Lodz, Poland; [email protected] * Correspondence: [email protected]; Tel.: +48-42-6354449; Fax: +48-42-6354449 or +48-42-635-4473 Received: 4 August 2020; Accepted: 4 September 2020; Published: 6 September 2020 Abstract: Modulation of PARP1 expression, changes in its enzymatic activity, post-translational modifications, and inflammasome-dependent cleavage play an important role in the development of monocytes and numerous subtypes of highly specialized macrophages. Transcription of PARP1 is governed by the proliferation status of cells at each step of their development. Higher abundance of PARP1 in embryonic stem cells and in hematopoietic precursors supports their self-renewal and pluri-/multipotency, whereas a low level of the enzyme in monocytes determines the pattern of surface receptors and signal transducers that are functionally linked to the NFκB pathway. In macrophages, the involvement of PARP1 in regulation of transcription, signaling, inflammasome activity, metabolism, and redox balance supports macrophage polarization towards the pro-inflammatory phenotype (M1), which drives host defense against pathogens. On the other hand, it seems to limit the development of a variety of subsets of anti-inflammatory myeloid effectors (M2), which help to remove tissue debris and achieve healing. -
And Active-Controlled Phase 3 Study of Postmenopausal Women with Osteoporosis
Christiansen et al. BMC Musculoskeletal Disorders 2010, 11:130 http://www.biomedcentral.com/1471-2474/11/130 RESEARCH ARTICLE Open Access SafetyResearch article of bazedoxifene in a randomized, double-blind, placebo- and active-controlled phase 3 study of postmenopausal women with osteoporosis Claus Christiansen*1, Charles H Chesnut III2, Jonathan D Adachi3, Jacques P Brown4, César E Fernandes5, Annie WC Kung6, Santiago Palacios7, Amy B Levine8, Arkadi A Chines8 and Ginger D Constantine8 Abstract Background: We report the safety findings from a 3-year phase 3 study (NCT00205777) of bazedoxifene, a novel selective estrogen receptor modulator under development for the prevention and treatment of postmenopausal osteoporosis. Methods: Healthy postmenopausal osteoporotic women (N = 7,492; mean age, 66.4 years) were randomized to daily doses of bazedoxifene 20 or 40 mg, raloxifene 60 mg, or placebo for 3 years. Safety and tolerability were assessed by adverse event (AE) reporting and routine physical, gynecologic, and breast examination. Results: Overall, the incidence of AEs, serious AEs, and discontinuations due to AEs in the bazedoxifene groups was not different from that seen in the placebo group. The incidence of hot flushes and leg cramps was higher with bazedoxifene or raloxifene compared with placebo. The rates of cardiac disorders and cerebrovascular events were low and evenly distributed among groups. Venous thromboembolic events, primarily deep vein thromboses, were more frequently reported in the active treatment groups compared with the placebo group; rates were similar with bazedoxifene and raloxifene. Bazedoxifene showed a neutral effect on the breast and an excellent endometrial safety profile. The incidence of fibrocystic breast disease was lower with bazedoxifene 20 and 40 mg versus raloxifene or placebo. -
Aromasin (Exemestane)
HIGHLIGHTS OF PRESCRIBING INFORMATION ------------------------------ADVERSE REACTIONS------------------------------ These highlights do not include all the information needed to use • Early breast cancer: Adverse reactions occurring in ≥10% of patients in AROMASIN safely and effectively. See full prescribing information for any treatment group (AROMASIN vs. tamoxifen) were hot flushes AROMASIN. (21.2% vs. 19.9%), fatigue (16.1% vs. 14.7%), arthralgia (14.6% vs. 8.6%), headache (13.1% vs. 10.8%), insomnia (12.4% vs. 8.9%), and AROMASIN® (exemestane) tablets, for oral use increased sweating (11.8% vs. 10.4%). Discontinuation rates due to AEs Initial U.S. Approval: 1999 were similar between AROMASIN and tamoxifen (6.3% vs. 5.1%). Incidences of cardiac ischemic events (myocardial infarction, angina, ----------------------------INDICATIONS AND USAGE--------------------------- and myocardial ischemia) were AROMASIN 1.6%, tamoxifen 0.6%. AROMASIN is an aromatase inhibitor indicated for: Incidence of cardiac failure: AROMASIN 0.4%, tamoxifen 0.3% (6, • adjuvant treatment of postmenopausal women with estrogen-receptor 6.1). positive early breast cancer who have received two to three years of • Advanced breast cancer: Most common adverse reactions were mild to tamoxifen and are switched to AROMASIN for completion of a total of moderate and included hot flushes (13% vs. 5%), nausea (9% vs. 5%), five consecutive years of adjuvant hormonal therapy (14.1). fatigue (8% vs. 10%), increased sweating (4% vs. 8%), and increased • treatment of advanced breast cancer in postmenopausal women whose appetite (3% vs. 6%) for AROMASIN and megestrol acetate, disease has progressed following tamoxifen therapy (14.2). respectively (6, 6.1). ----------------------DOSAGE AND ADMINISTRATION----------------------- To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc at Recommended Dose: One 25 mg tablet once daily after a meal (2.1). -
PARP Inhibitors Sensitize Ewing Sarcoma Cells to Temozolomide
Published OnlineFirst October 5, 2015; DOI: 10.1158/1535-7163.MCT-15-0587 Cancer Biology and Signal Transduction Molecular Cancer Therapeutics PARP Inhibitors Sensitize Ewing Sarcoma Cells to Temozolomide-Induced Apoptosis via the Mitochondrial Pathway Florian Engert1, Cornelius Schneider1, Lilly Magdalena Weib1,2,3, Marie Probst1,and Simone Fulda1,2,3 Abstract Ewing sarcoma has recently been reported to be sensitive to that subsequent to DNA damage-imposed checkpoint activa- poly(ADP)-ribose polymerase (PARP) inhibitors. Searching for tion and G2 cell-cycle arrest, olaparib/TMZ cotreatment causes synergistic drug combinations, we tested several PARP inhibi- downregulation of the antiapoptotic protein MCL-1, followed by tors (talazoparib, niraparib, olaparib, veliparib) together with activation of the proapoptotic proteins BAX and BAK, mitochon- chemotherapeutics. Here, we report that PARP inhibitors syner- drial outer membrane permeabilization (MOMP), activation of gize with temozolomide (TMZ) or SN-38 to induce apoptosis caspases, and caspase-dependent cell death. Overexpression of a and also somewhat enhance the cytotoxicity of doxorubicin, nondegradable MCL-1 mutant or BCL-2, knockdown of NOXA or etoposide, or ifosfamide, whereas actinomycin D and vincris- BAX and BAK, or the caspase inhibitor N-benzyloxycarbonyl-Val- tine show little synergism. Furthermore, triple therapy of ola- Ala-Asp-fluoromethylketone (zVAD.fmk) all significantly reduce parib, TMZ, and SN-38 is significantly more effective compared olaparib/TMZ-mediated apoptosis. These findings emphasize with double or monotherapy. Mechanistic studies revealed that the role of PARP inhibitors for chemosensitization of Ewing the mitochondrial pathway of apoptosis plays a critical role in sarcoma with important implications for further (pre)clinical mediating the synergy of PARP inhibition and TMZ. -
Selective Estrogen Receptor Modulators Enhance CNS Remyelination Independent of Estrogen Receptors
This Accepted Manuscript has not been copyedited and formatted. The final version may differ from this version. Research Articles: Cellular/Molecular Selective estrogen receptor modulators enhance CNS remyelination independent of estrogen receptors Kelsey A. Rankin1, Feng Mei1, Kicheol Kim1, Yun-An A. Shen1, Sonia R. Mayoral1, Caroline Desponts2, Daniel S. Lorrain2, Ari J. Green1, Sergio E. Baranzini1, Jonah R. Chan1 and Riley Bove1 1University of California, San Francisco, Weill Institute for Neurosciences, Department of Neurology 2Inception Sciences, San Diego, CA https://doi.org/10.1523/JNEUROSCI.1530-18.2019 Received: 11 June 2018 Revised: 17 January 2019 Accepted: 20 January 2019 Published: 29 January 2019 Author contributions: K.R., Y.-A.A.S., A.J.G., J.R.C., and R.B. designed research; K.R., F.M., K.K., Y.- A.A.S., S.R.M., C.D., D.S.L., and S.B. performed research; K.R. analyzed data; K.R. wrote the first draft of the paper; K.R., J.R.C., and R.B. edited the paper; K.R. wrote the paper; F.M. and J.R.C. contributed unpublished reagents/analytic tools. Conflict of Interest: The authors declare no competing financial interests. We would like to thank the Innovation Program for Remyelination and Repair at the Weill Institute for Neurosciences at the University of California, San Francisco (UCSF). This work was supported by the National Institutes of Health/National Institute of Neurological Disorders and Stroke [R01NS062796, R01NS097428, R01NS095889, R01NS088155], the National Multiple Sclerosis Society [RG5203A4], The Adelson Medical Research Foundation: ANDP (A130141), the Heidrich Family and Friends and the Rachleff Family Endowments. -
R&D Briefing 76
The Impact of Recent Regulatory Developments on the Mexican Therapeutic Landscape Access to innovative medicines is key to El acceso a medicamentos innovadores es clave para improving overall population health, reducing mejorar la salud de toda la población, para reducir los hospitalisation time and decreasing morbidity and tiempos de hospitalización, la morbilidad y la mortalidad mortality. An efficient regulatory process can be de un país. Un proceso regulatorio eficiente tiene un reflected in measurable positive health impacts; impacto positivo medible en la salud, y por el contrario, conversely, activities that slow or impede acciones que retrasan o impiden la eficiencia regulatoria y regulatory efficiency and predictability can be su predictibilidad pueden ser perjudiciales. La parálisis detrimental. Recent developments in the Mexican reciente del Sistema regulatorio mexicano respecto a la regulatory system for the assessments of evaluación de nuevos medicamentos innovadores innovative new products have had a negative conlleva un impacto negativo en la salud de la población impact on Mexican public health. mexicana. This Briefing addresses the impact of suspending Este informe analiza el impacto de la suspensión de las the activities of the New Molecules Committee actividades del Comité de Moléculas Nuevas (NMC, por (NMC) on the Mexican therapeutic landscape. sus siglas en inglés) sobre el horizonte terapéutico de First, we compared the way that “new medicines” México. En primer lugar, comparamos la definición de are defined within the context of the Mexican nuevos medicamentos según el contexto regulatorio regulatory system, with definitions used by mexicano con las definiciones adoptadas por otras comparable regulators and health organisations. agencias reguladoras u organizaciones de salud del We have also investigated the extent to which mundo. -
Bazedoxifene–Conjugated Estrogens for Treating Endometriosis Endometriosis: Nina S
Endometriosis: Case Report Bazedoxifene–Conjugated Estrogens Teaching Points for Treating Endometriosis 1. The estrogen receptor (ER) is a definitive down- stream target in endometriosis. As an endometrial ER antagonist, bazedoxifene assures not only block- Valerie A. Flores, MD, ade of estrogen binding, but it also has the ability to Nina S. Stachenfeld, PhD, degrade the receptor. This unique property of baze- and Hugh S. Taylor, MD doxifene blocks estrogen action and makes it an attractive treatment option for endometriosis. 2. Conjugated estrogens paired with bazedoxifene do BACKGROUND: Endometriosis is a gynecologic disorder not require a progestin to block endometrial affecting 6–10% of reproductive-aged women. First-line growth, thus avoiding the side effects associated therapies are progestin-based regimens; however, failure with progestin-based regimens. 08/19/2018 on BhDMf5ePHKbH4TTImqenVGLGjjqParD6K7Nl5tTGGFqgjMmLRmuIlIgbkUbgVXoQ by http://journals.lww.com/greenjournal from Downloaded rates are high, often requiring alternative hormonal agents, each with unfavorable side effects. Bazedoxifene with con- ’ 1 Downloaded that can have a significant effect on patients lives. jugated estrogens is approved for treatment of menopausal Treatment consists of agents that induce atrophy of symptoms, and use in animal studies has demonstrated from regression of endometriotic lesions. As such, it represents endometriotic lesions. There is tremendous need for http://journals.lww.com/greenjournal a potential treatment option for endometriosis. therapies that are effective, have favorable side effect profiles, and can be used long term in women with CASE: A patient with stage III endometriosis referred for symptomatic endometriosis, especially for those not management of dysmenorrhea and cyclic pelvic pain was treated with 20 mg bazedoxifene and 0.45 mg conjugated responding to progestin-based regimens. -
Bazedoxifene Plus Conjugated Oestrogens (Duavive®) the East of England Priorities Advisory Committee a Function Of
PAC - Bazedoxifene plus conjugated oestrogens (Duavive®) The East of England Priorities Advisory Committee A function of FULL EVIDENCE REVIEW Bazedoxifene plus conjugated oestrogens (Duavive®) for post-menopausal symptoms in women with a uterus Recommendations on the use of bazedoxifene plus conjugated oestrogens (Duavive ®) for the treatment of post-menopausal symptoms in women with a uterus Routine commissioning of bazedoxifene plus conjugated oestrogens (Duavive®) for the treatment of post-menopausal symptoms in women with a uterus is currently NOT recommended because: • There is insufficient evidence to quantify the risks and benefits compared to current alternative treatments • There are no long term safety data. • Information on cost effectiveness and cost impact is not currently available. Recommendations will be reviewed in the light of new national guidance, new evidence and information on cost effectiveness. Medicine Bazedoxifene (BZA) plus conjugated oestrogens (CE), Duavive® Proposed sector of prescribing Primary and secondary care Key points/Evidence level Key points • Bazedoxifene acetate is a third generation selective oestrogen receptor modulator (SERM), similar to raloxifene, and has oestrogen-receptor agonist effects on bone, and antagonist effects on uterine and breast tissue. • When a SERM is paired with an oestrogen, it forms a tissue-selective estrogen complex (TSEC); a novel class of therapeutic agents, which achieve an optimal blend of estrogen receptor agonist and antagonist effects for the treatment of menopausal symptoms and prevention of osteoporosis. • Bazedoxifene combined with conjugated estrogens has recently been approved by the Food & Drug Administration (FDA) in the United States (US) for treatment of moderate-to- severe vasomotor symptoms associated with menopause and prevention of postmenopausal osteoporosis in women with a uterus as Duavee® and in the European Union (EU), as Duavive®, for the treatment of oestrogen deficiency symptoms in postmenopausal women with a uterus. -
Idarubicin.Pdf
PRODUCT MONOGRAPH INCLUDING PATIENT MEDICATION INFORMATION PrIDARUBICIN idarubicin hydrochloride injection Preservative Free Solution, 1 mg/mL, intravenous injection Antineoplastic Agent Pfizer Canada ULC Date of Initial Authorization: 17,300 Trans-Canada Highway July 30, 2013 Kirkland, Quebec, H9J 2M5 Date of Revision: September 14, 2021 Submission Control Number: 255782 ©Pfizer Canada ULC, 2021 IDARUBICIN (idarubicin hydrochloride injection) Page 1 of 31 RECENT MAJOR LABEL CHANGES 7 Warnings and Precautions, Cardiovascular JA/2021 TABLE OF CONTENTS Sections or subsections that are not applicable at the time of authorization are not listed. RECENT MAJOR LABEL CHANGES ..........................................................................................2 TABLE OF CONTENTS ............................................................................................................2 1 INDICATIONS.............................................................................................................4 1.1 Pediatrics .................................................................................................................4 1.2 Geriatrics..................................................................................................................4 2 CONTRAINDICATIONS................................................................................................4 3 SERIOUS WARNINGS AND PRECAUTIONS BOX ...........................................................5 4 DOSAGE AND ADMINISTRATION................................................................................5 -
Summary Attachment for Eudract
Avenue E. Mounier 83/11 1200 Brussels Belgium Tel: +32 2 774 1611 Email: [email protected] www.eortc.org Summary Attachment for EudraCT Name of Individual study Table Referring to Part of the Dossier (For National Authority Use Sponsor/Company: Only) EORTC Name of the Volume: finished product Name of Active Page Ingredients: Clofarabine Cytarabine Idarubicin Title of the Study Clofarabine in combination with a standard remissioninduction regimen (AraC and idarubicin) in patients 18-60 years old with previously untreated intermediate and bad risk acute myelogenous leukemia (AML) or high risk myelodysplasia (MDS) : a phase I-II study of the EORTC-LG and GIMEMA (AML-14A trial) Investigators & Study Centers Number of Country City patients Belgium 4 101.Hopital Jules Bordet (BE) Brussels 1 109.A.Z. St Jan (BE) Brugge 3 Italy 28 3931.Tor Vergata Roma (IT) Roma 12 733.La Sapienza Ematologia (IT) Roma 16 Netherlands 43 304.RU Nijmegen (NL) Nijmegen 24 310.Univ Med Ctr Leiden (NL) Leiden 13 22.J Bosch 'S Hertogenb (NL) 's-Hertogenbosch 6 Grand Total 75 ST-006-AF-01 Page 1 of 4 Template version 2 Short Study Report for Health Authorities EORTC Name of Individual study Table Referring to Part of the Dossier (For National Authority Use Sponsor/Company: Only) EORTC Name of the Volume: finished product Name of Active Page Ingredients: Clofarabine Cytarabine Idarubicin Publication Willemze R, Suciu S, Muus P, Halkes CJ, Meloni G, Meert L, Karrasch M, Rapion J, (reference) Vignetti M, Amadori S, de Witte T, Marie JP.Clofarabine in combination with a standard remission induction regimen (cytosine arabinoside and idarubicin) in patients with previously untreated intermediate and bad-risk acute myelogenous leukemia (AML) or high-risk myelodysplastic syndrome (HR-MDS): phase I results of an ongoing phase I/II study of the leukemia groups of EORTC and GIMEMA (EORTC GIMEMA 06061/AML-14A trial).