0:00:00.000,0:00:07.556 "Turmeric Curcumin Reprogramming [br]Cancer Cell Death" 0:00:07.556,0:00:10.699 The anticancer effects of the [br]turmeric pigment curcumin 0:00:10.699,0:00:13.919 extend well beyond it's ability [br]to block carcinogens. 0:00:13.919,0:00:17.558 The anticancer effects of [br]curcumin mainly result from 0:00:17.558,0:00:22.599 the multitude of ways it regulates [br]programmed cell death. 0:00:22.599,0:00:26.591 It's estimated that human body consists [br]of 10 or so trillion cells, 0:00:26.591,0:00:29.206 that's a million million. 0:00:29.206,0:00:34.196 Almost all of these cells get turned [br]over within approximately 100 days. 0:00:34.196,0:00:38.080 We're like a new person, [br]every three months! 0:00:38.080,0:00:40.533 We reinvent ourselves [br]physically. 0:00:40.533,0:00:43.815 And since we're just [br]made up of 3 things 0:00:43.815,0:00:47.974 air, water, and food - [br]those are the only inputs - 0:00:47.974,0:00:52.540 we are what we eat [br]literally, physically! 0:00:52.540,0:00:55.566 In a sense, our body has to rebuild [br]itself every three months 0:00:55.566,0:01:00.219 with the building materials we [br]deliver to it through our stomach. 0:01:00.219,0:01:02.171 Our mouths are like [br]the access road 0:01:02.171,0:01:05.268 to the continual construction [br]site to our body. 0:01:05.268,0:01:07.404 Trucks roll in [br]3 times a day. 0:01:07.404,0:01:08.827 What do we want [br]them to deliver? 0:01:08.827,0:01:11.712 Some shoddy cheap stuff [br]we scrounged around for 0:01:11.712,0:01:14.556 or bought at the discount outlets [br]that's just going to fall apart? 0:01:14.556,0:01:17.514 Or do we want to build [br]our foundation solid? 0:01:17.514,0:01:19.499 We are each walking [br]around inside 0:01:19.499,0:01:23.082 the greatest known architectural [br]structures in the universe! 0:01:23.082,0:01:29.269 Let's not ruin such grand [br]blueprints by consuming junk. 0:01:29.269,0:01:33.349 Anyway, we only own the biological [br]real estate we're born with, 0:01:33.349,0:01:37.183 so if need to rebuild every three months, [br]we also need a wrecking crew. 0:01:37.183,0:01:40.180 If we're replacing 10 trillion [br]every hundred days, 0:01:40.189,0:01:44.280 that means we have to kill off like [br]100 billion cells every day, normally. 0:01:44.289,0:01:46.430 Out with the old, [br]in with the new. 0:01:46.433,0:01:50.570 We do that primarily through [br]a process called apoptosis, 0:01:50.574,0:01:52.490 pre-programmed [br]cell death, 0:01:52.497,0:01:54.430 from the Greek "ptosis" [br]meaning falling, 0:01:54.433,0:01:55.790 and "apo" [br]meaning away from. 0:01:55.792,0:01:58.470 So it's our cells falling [br]away from our body. 0:01:58.474,0:02:03.290 For example, we all used to have [br]webbed fingers and toes, literally. 0:02:03.297,0:02:06.430 Each one of us in the [br]womb until about 4 months, 0:02:06.437,0:02:07.950 and then the [br]apoptosis kicks in 0:02:07.958,0:02:14.620 and the cells in the webbing in between kill [br]themselves off to separate our fingers. 0:02:14.623,0:02:17.970 Some cells in our body overstay [br]their welcome, though, 0:02:17.978,0:02:20.260 like cancer cells. 0:02:20.260,0:02:22.350 They don't die when [br]they're supposed to 0:02:22.359,0:02:25.580 by somehow turning off [br]their suicide genes. 0:02:25.580,0:02:26.770 What can we [br]do about it? 0:02:26.772,0:02:29.460 Well, one of the ways [br]curry kills cancer cells, 0:02:29.465,0:02:33.790 is by reprogramming the self-destruct [br]mechanism back into cancer cells. 0:02:33.796,0:02:37.780 Let me just run through [br]one of these pathways, 0:02:37.780,0:02:41.880 just to see the complexity.[br]FAS, is a so-called death receptor, 0:02:41.882,0:02:45.340 which activates the FAS [br]associated death domain, 0:02:45.348,0:02:48.280 along with death receptor 5, [br]and death receptor 4. 0:02:48.280,0:02:51.230 FADD then activates caspase-8, 0:02:51.233,0:02:55.300 which ignites the death[br]machine, and kills the cell. 0:02:55.303,0:02:57.670 Where does curry powder [br]fit into all this? 0:02:57.674,0:03:00.330 In cancer cells, curcumin, [br]the pigment in the spice turmeric 0:03:00.330,0:03:01.820 that makes curry [br]powder yellow, 0:03:01.827,0:03:04.320 upregulates and activates [br]death receptors, 0:03:04.325,0:03:07.140 as has been demonstrated in [br]human kidney cancer cells 0:03:07.149,0:03:10.450 as well as skin cancer, [br]and nose and throat cancer. 0:03:10.452,0:03:14.190 It can also activate the [br]death machine directly, 0:03:14.190,0:03:16.900 as has been shown in lung [br]cancer and colon cancer. 0:03:16.960,0:03:20.220 Caspases are so-called[br]executioner enzymes, 0:03:20.226,0:03:23.160 that when activated, destroy [br]the cancer cell from within 0:03:23.165,0:03:24.940 by chopping up proteins [br]left and right, 0:03:24.945,0:03:27.950 kind of a death by [br]a thousand cuts. 0:03:27.950,0:03:29.780 And that's just [br]one pathway. 0:03:29.787,0:03:33.190 Here's all the other ways [br]curcumin can affect apoptosis. 0:03:33.194,0:03:36.950 Here's all the different types of [br]cancer cells curcumin can kill, 0:03:36.953,0:03:40.870 but it tends to leave [br]normal cells alone 0:03:40.873,0:03:42.630 for reasons that are [br]not fully understood. 0:03:42.633,0:03:45.780 Overall, this review showed [br]that curcumin can kill 0:03:45.780,0:03:49.110 a wide variety of tumor cell types [br]through diverse mechanisms. 0:03:49.114,0:03:52.430 And it's because curcumin can [br]affect numerous mechanisms 0:03:52.434,0:03:54.590 of cell death at [br]the same time, 0:03:54.594,0:03:58.310 it's possible that cancer cells may [br]not easily develop resistance 0:03:58.314,0:04:00.190 to curcumin-induced [br]cell death, 0:04:00.193,0:04:02.550 like they do to [br]most chemotherapy. 0:04:02.552,0:04:05.390 Furthermore, its ability to kill [br]tumor cells and not normal cells 0:04:05.394,0:04:10.100 makes curcumin an attractive candidate… [br]for supper? 0:04:10.102,0:04:12.630 Can't make money on some [br]spice you can buy anywhere. 0:04:12.631,0:04:19.800 An attractive candidate [br]for drug development.