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Nathan Goodyear

Prostate-specific antigen flare induced by cabazitaxel-based chemotherapy in patients w... - 0 views

www.ncbi.nlm.nih.gov/...24725337

Chemotherapy taxanes "psa flare" psa "prostate cancer"

shared by Nathan Goodyear on 05 Dec 18 - No Cached
  • Nathan Goodyear on 05 Dec 18
     
    Taxanes associated with PSA flare. The authors concluded that the flar within 12 weeks of therapy was not associated with any change in outcomes and could be ignored. The Taxanes as a whole group appears to be associated with this PSA flare pheonomenon.
Nathan Goodyear

Neoadjuvant chemotherapy induces breast cancer metastasis through a TMEM-mediated mecha... - 0 views

www.ncbi.nlm.nih.gov/...PMC5592784

Chemotherapy metastasis cancer TMEMs 'tumor microenvironment of metastasis' "chemotherapy metastasis"

shared by Nathan Goodyear on 22 Jan 19 - No Cached
  • Nathan Goodyear on 22 Jan 19
     
    Study looked at tumor microenvironment of metastasis structures (TMEMs) involved in metastasis. It has also been shown that taxane-based chemotherapies promote tumor regrowth by inducing angiogenesis. In this study, the tumor growth was slowed with taxanes chemotherapies, but it increased TMEMs and thus metastatic potential.
Nathan Goodyear

https://onlinelibrary.wiley.com/doi/pdf/10.1111/bju.13554 - 0 views

onlinelibrary.wiley.com/...bju.13554

"Prostate cancer" "psa flare" psa taxanes

shared by Nathan Goodyear on 05 Dec 18 - No Cached
  • Nathan Goodyear on 05 Dec 18
     
    Good brief review of the evidence of the psa flare
Nathan Goodyear

Evolving landscape of human epidermal growth factor receptor 2-positive breast cancer t... - 0 views

www.sciencedirect.com/...S0960977617300103

HER-2 breast cancer cancer herceptin Perjeta

shared by Nathan Goodyear on 06 Aug 18 - No Cached
  • 15%–20%
  • key mediator of cell growth, differentiation, and survival
  • of higher histological grade and are more likely to invade axillary lymph nodes
  • ...15 more annotations...
  • shortened survival and an increased risk of disease recurrence and metastasis
  • Currently, four HER2-directed agents are approved for the treatment of patients with HER2+ breast cancer: trastuzumab, pertuzumab, lapatinib, and ado-trastuzumab emtansine (T-DM1)
  • biosimilars
  • trastuzumab may provide greater benefit when administered concurrently with chemotherapy rather than after, and this has become the standard approach
  • concurrent use of anthracyclines (ie, doxorubicin or epirubicin) and trastuzumab is not recommended because of an increased risk for cardiac toxicity
    • Nathan Goodyear
      Nathan Goodyear on 06 Aug 18
       
      avoid herceptin in conjuction with antracyclines i.e. doxorubicin
  • Sequential doxorubicin plus cyclophosphamide followed by concomitant paclitaxel or docetaxel and trastuzumab is recommended for most patients
    • Nathan Goodyear
      Nathan Goodyear on 06 Aug 18
       
      top recommended regimen combination
  • Guidelines also recommend trastuzumab in combination with paclitaxel, docetaxel and carboplatin, or docetaxel and cyclophosphamide, particularly for patients with increased risk for cardiac toxicity or those with small (≤1 cm), node-negative HER2+ tumors
    • Nathan Goodyear
      Nathan Goodyear on 06 Aug 18
       
      good alternative in patients with increased risk of cardiac toxicity.
  • guidelines recommend up to 1 year of adjuvant trastuzumab
  • Neoadjuvant chemotherapy with trastuzumab is associated with higher rates of pathologic complete response (pCR) than chemotherapy alone or in combination with lapatinib
  • the combination of trastuzumab, lapatinib, and chemotherapy is not recommended because it failed to demonstrate noninferiority versus trastuzumab and chemotherapy in the adjuvant setting
  • recommend the combination of trastuzumab, pertuzumab, and chemotherapy as neoadjuvant treatment for patients with locally advanced HER2+ breast cancer and for some patients (node-positive or tumor ≥2 cm) with early-stage disease
  • neoadjuvant chemotherapy in combination with pertuzumab and trastuzumab reduced the risk of progression or death by 31% and recurrence or death by 40% versus trastuzumab alone
  • Concurrent chemotherapy and HER2-directed therapy improves survival outcomes over chemotherapy alon
  • dual inhibition of HER2 with trastuzumab and pertuzumab in combination with paclitaxel reduced the risk of death or progression by approximately 40% compared with concurrent trastuzumab and paclitaxel
  • the combination of trastuzumab, pertuzumab, and taxane chemotherapy is the preferred first-line regimen
  • Nathan Goodyear on 06 Aug 18
     
    HER-2 + breast cancer = appx 15-20% of all breast cancers and is a marker of worse prognosis and an indication for targeted immunotherapy blockade.
Nathan Goodyear

Oncotarget | Preclinical evaluation of a nanoformulated antihelminthic, niclosamide, in... - 0 views

www.oncotarget.com/index.php

Niclosamide cancer ovarian cancer

shared by Nathan Goodyear on 16 Apr 18 - No Cached
  • Ovarian cancer is the most lethal gynecologic malignancy in the world
  • paclitaxel represents a breakthrough in the treatment of ovarian cancer, the overall 5-year survival rate of patients with stage III disease is still approximately 40%
  • Targeting cancer stem cells is an emerging concept in cancer therapy
  • ...8 more annotations...
  • Ovarian cancer stem cells play an important role in chemoresistance and cancer recurrence
  • Furthermore, recent studies indicate that niclosamide exhibits anticancer effects against various human cancer cells by acting on multiple cell signaling pathways and inducing mitochondrial uncoupling [16–21]
  • has low systemic bioavailability (~10%) when administered orally, which is beneficial for treating local parasitic infections of the intestines while minimizing systemic exposure
  • The nano-NI demonstrated significantly higher inhibitory effects on sphere formation than the original niclosamide did
  • the nano-NI formulation decreased the metabolic activity of ovarian cancer cells and caused a metabolic shift from oxidative phosphorylation to glycolysis
  • This toxicity evaluation showed that oral nano-NI had no toxic effect on either group of mice in terms of weight, plasma albumin levels, and blood cell counts, and revealed no adverse effects on vital organ function in the rodents, which suggests that nano-NI is safe for animals
  • niclosamide inhibits tumor cell growth by interrupting multiple pathways (Wnt, Notch, STAT3, NF-κB, and mTORc1) and the generation of reactive oxygen species in several cancer cells
  • The current standard therapy for ovarian cancer includes taxanes and platinum-based chemotherapy after cytoreductive surgery. Among treated patients, nearly 70 to 80% will experience disease recurrence
  • Nathan Goodyear on 16 Apr 18
     
    nano-Niclosamide more effective than traditional Niclosamide in in vitro and in vivo ovarian cancer.
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