StemCell Research

 PONTIFICAL ACADEMY FOR LIFE

DECLARATION ON THE PRODUCTION AND THE SCIENTIFIC AND THERAPEUTIC USE OF HUMAN EMBRYONIC STEM CELLS
 
[ Excerted from  the  above  Documant]
Ethical Problems
Given the nature of this article, the key ethical problems implied by these new technologies are presented briefly, with an indication of the responses which emerge from a careful consideration of the human subject from the moment of conception. It is this consideration which underlies the position affirmed and put forth by the Magisterium of the Church. 
The first ethical problem, which is fundamental, can be formulated thus: Is it morally licit to produce and/or use living human embryos for the preparation of ES cells? 
The answer is negative, for the following reasons:
1. On the basis of a complete biological analysis, the living human embryo is - from the moment of the union of the gametes - a human subject with a well defined identity, which from that point begins its own coordinated, continuous and gradual development, such that at no later stage can it be considered as a simple mass of cells.[xiv]
2. From this it follows that as a Ahuman individual" it has the right to its own life; and therefore every intervention which is not in favour of the embryo is an act which violates that right. Moral theology has always taught that in the case of Ajus certum tertii" the system of probabilism does not apply.[xv]
3. Therefore, the ablation of the inner cell mass (ICM) of the blastocyst, which critically and irremediably damages the human embryo, curtailing its development, is a gravely immoral act and consequently is gravely illicit.
4. No end believed to be good, such as the use of stem cells for the preparation of other differentiated cells to be used in what look to be promising therapeutic procedures, can justify an intervention of this kind. A good end does not make right an action which in itself is wrong.
5. For Catholics, this position is explicitly confirmed by the Magisterium of the Church which, in the Encyclical Evangelium Vitae, with reference to the Instruction Donum Vitae of the Congregation for the Doctrine of the Faith, affirms: AThe Church has always taught and continues to teach that the result of human procreation, from the first moment of its existence, must be guaranteed that unconditional respect which is morally due to the human being in his or her totality and unity in body and spirit: >The human being is to be respected and treated as a person from the moment of conception; and therefore from that same moment his rights as a person must be recognized, among which in the first place is the inviolable right of every innocent human being to life'"(No. 60).[xvi] 
The second ethical problem can be formulated thus: Is it morally licit to engage in so-called Atherapeutic cloning" by producing cloned human embryos and then destroying them in order to produce ES cells?
The answer is negative, for the following reason: Every type of therapeutic cloning, which implies producing human embryos and then destroying them in order to obtain stem cells, is illicit; for there is present the ethical problem examined above, which can only be answered in the negative.[xvii] 
The third ethical problem can be formulated thus: Is it morally licit to use ES cells, and the differentiated cells obtained from them, which are supplied by other researchers or are commercially obtainable?  
The answer is negative, since: prescinding from the participation - formal or otherwise - in the morally illicit intention of the principal agent, the case in question entails a proximate material cooperation in the production and manipulation of human embryos on the part of those producing or supplying them.
In conclusion, it is not hard to see the seriousness and gravity of the ethical problem posed by the desire to extend to the field of human research the production and/or use of human embryos, even from an humanitarian perspective.
The possibility, now confirmed, of using adult stem cells to attain the same goals as would be sought with embryonic stem cells - even if many further steps in both areas are necessary before clear and conclusive results are obtained - indicates that adult stem cells represent a more reasonable and human method for making correct and sound progress in this new field of research and in the therapeutic applications which it promises. These applications are undoubtedly a source of great hope for a significant number of suffering people.  
                                                     The President
                                                       Prof. Juan de Dios Vial Correa 
                                                               The Vice President
                                                          S.E. Mons. Elio Sgreccia
Vatican City, August 25, 2000.