curcumin effects in colon cancer cells

1. LAURA SOFÍA AUSECHA ROSERO
TERCER SEMESTRE- MEDICINA UPB

2. INTRODUCTION
03
04
01
02
METHODOLOGY
GENERAL OBJECTIVE
Conclusions
• Table of contents
RESULTS
DISCUSSION
05
06

3. CURCUMIN
Curcumin is the active ingredient of turmeric and
the main responsible for its medicinal and
pharmacological properties.
Its mechanisms of action include
inhibition of cell signaling pathways
and effects on enzymes such as
cyclooxygenase and glutathione-S-
transferase.
TURMERIC is a plant native to India that offers great
gastronomic versatility and is attributed medicinal
properties for certain diseases.
From this plant is extracted curcumin, a natural dye that
serves as an indicator in some chemical reactions called
oxide-reduction reactions.

4. o The large intestine is made up of
the colon and rectum.
o Its main function is the absorption of
water and electrolytes.
o it begins as small, noncancerous
(benign) groups of cells called
POLYPS that form inside the colon.
COLON CANCER
Sypmtoms and prevention
o Colon cancer is one of the common clinical
nausea tumors, and mortality are among the
forefront of various tumors
This image shows a colonoscopic view of a colon adenocarcinoma.

5. • General Objective•
Curcumin is a natural active
product extracted from
turmeric.
cancer properties against
various tumors.
Their aimed to investigate the anti-colon cancer
properties of curcumin in vitro, and determine
the molecular mechanisms underlying these
effects.

6. METHODOLOGY
CELL CULTURE
MC38
HCT116
MCEC
A549
B16
4T1
DMEM
-10% fetal bovine serum
-penicillin/streptomycin
-1% non-essential amino acids
placed in a 37 °C, 5% CO2 incubator.
Cell apoptosis assay
-Cells was seeded
-cells per well in a 6-well plate
and cultured for 24 h
treated with 5, 10, 25, 50 μM
curcumin for 48 h
washed with PBS containing
2% serum.
Incubaded at 37°
Examined and photographed
(fluorescence microscope)
Supernatant.

7. Quantitative RT-PCR
analysis
Total RNA was extracted from
cells using Trizol reagent
95 °C for 10 min,
45 cycles of denaturation at 95 °C for
10 s
a melting curve was obtained from
62 °C to 95 °C.
Western Blot Analyses
lysed with RIPA
measure the protein concentration in
the supernatant
Complementary DNA was
synthesized using the TapMan
real-time PCR was performed using a
Lightcycler96 instrument with SYBR Green
Centrifuged for 10 min at 4 °C.
The supernatant was mixed
with protein denaturation
buffer
The membrane was blocked with 5%
dried milk for 1.5 h followed by
incubation
Caspase3, active-Caspase9, p53, GAPDH at 4 °C
overnight. Blots were rinsed thoroughly and then
incubated with Goat anti-Rabbit IgG-

8. • RESULTS •

9. • RESULTS

10. DISCUSSION
AUTHOR COMMENT AGREE OR DISAGREE?
T. Wang, X. Wu ¨Studies have shown that
curcumin induces cell apoptosis
through the mitochondrial
pathway mediated by reactive
oxygen species (ROS)¨
P. Liczbinski, J.
Michałowicz
(…) p53 participates in multiple
apoptotic cascades and
regulates cell cycle gene
expression, and ultimately
inhibits cancer development and
malignant transformation,
A. Giordano (….)Previous studies have
reported that curcumin exhibits
anti-inflammatory, antimicrobial,
free radical scavenging
activities

11. A
B
CONCLUSIONS
Curcumin can induce tumor cell S-phase cycle arrest. The
combined use of curcumin and cell cycle S-phase inhibitors can
enhance the utilization of curcumin drugs. Such as sodium-
potassium pump inhibitors.
The use of inhibitors can inhibit the activity of Rb and E2F,
and clinical results show that the use of CDK4/6 inhibitors
alone will gradually lead to the occurrence of tumor drug
resistance.

12. MINDMAP